Mouse code for the MacroRat
mbed-dev/targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_hal_i2c.c@46:b156ef445742, 2017-06-03 (annotated)
- Committer:
- sahilmgandhi
- Date:
- Sat Jun 03 00:22:44 2017 +0000
- Revision:
- 46:b156ef445742
- Parent:
- 18:6a4db94011d3
Final code for internal battlebot competition.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
sahilmgandhi | 18:6a4db94011d3 | 1 | /** |
sahilmgandhi | 18:6a4db94011d3 | 2 | ****************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 3 | * @file stm32f4xx_hal_i2c.c |
sahilmgandhi | 18:6a4db94011d3 | 4 | * @author MCD Application Team |
sahilmgandhi | 18:6a4db94011d3 | 5 | * @version V1.5.0 |
sahilmgandhi | 18:6a4db94011d3 | 6 | * @date 06-May-2016 |
sahilmgandhi | 18:6a4db94011d3 | 7 | * @brief I2C HAL module driver. |
sahilmgandhi | 18:6a4db94011d3 | 8 | * This file provides firmware functions to manage the following |
sahilmgandhi | 18:6a4db94011d3 | 9 | * functionalities of the Inter Integrated Circuit (I2C) peripheral: |
sahilmgandhi | 18:6a4db94011d3 | 10 | * + Initialization and de-initialization functions |
sahilmgandhi | 18:6a4db94011d3 | 11 | * + IO operation functions |
sahilmgandhi | 18:6a4db94011d3 | 12 | * + Peripheral Control functions |
sahilmgandhi | 18:6a4db94011d3 | 13 | * + Peripheral State functions |
sahilmgandhi | 18:6a4db94011d3 | 14 | * |
sahilmgandhi | 18:6a4db94011d3 | 15 | @verbatim |
sahilmgandhi | 18:6a4db94011d3 | 16 | ============================================================================== |
sahilmgandhi | 18:6a4db94011d3 | 17 | ##### How to use this driver ##### |
sahilmgandhi | 18:6a4db94011d3 | 18 | ============================================================================== |
sahilmgandhi | 18:6a4db94011d3 | 19 | [..] |
sahilmgandhi | 18:6a4db94011d3 | 20 | The I2C HAL driver can be used as follows: |
sahilmgandhi | 18:6a4db94011d3 | 21 | |
sahilmgandhi | 18:6a4db94011d3 | 22 | (#) Declare a I2C_HandleTypeDef handle structure, for example: |
sahilmgandhi | 18:6a4db94011d3 | 23 | I2C_HandleTypeDef hi2c; |
sahilmgandhi | 18:6a4db94011d3 | 24 | |
sahilmgandhi | 18:6a4db94011d3 | 25 | (#)Initialize the I2C low level resources by implement the HAL_I2C_MspInit() API: |
sahilmgandhi | 18:6a4db94011d3 | 26 | (##) Enable the I2Cx interface clock |
sahilmgandhi | 18:6a4db94011d3 | 27 | (##) I2C pins configuration |
sahilmgandhi | 18:6a4db94011d3 | 28 | (+++) Enable the clock for the I2C GPIOs |
sahilmgandhi | 18:6a4db94011d3 | 29 | (+++) Configure I2C pins as alternate function open-drain |
sahilmgandhi | 18:6a4db94011d3 | 30 | (##) NVIC configuration if you need to use interrupt process |
sahilmgandhi | 18:6a4db94011d3 | 31 | (+++) Configure the I2Cx interrupt priority |
sahilmgandhi | 18:6a4db94011d3 | 32 | (+++) Enable the NVIC I2C IRQ Channel |
sahilmgandhi | 18:6a4db94011d3 | 33 | (##) DMA Configuration if you need to use DMA process |
sahilmgandhi | 18:6a4db94011d3 | 34 | (+++) Declare a DMA_HandleTypeDef handle structure for the transmit or receive stream |
sahilmgandhi | 18:6a4db94011d3 | 35 | (+++) Enable the DMAx interface clock using |
sahilmgandhi | 18:6a4db94011d3 | 36 | (+++) Configure the DMA handle parameters |
sahilmgandhi | 18:6a4db94011d3 | 37 | (+++) Configure the DMA Tx or Rx Stream |
sahilmgandhi | 18:6a4db94011d3 | 38 | (+++) Associate the initialized DMA handle to the hi2c DMA Tx or Rx handle |
sahilmgandhi | 18:6a4db94011d3 | 39 | (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on |
sahilmgandhi | 18:6a4db94011d3 | 40 | the DMA Tx or Rx Stream |
sahilmgandhi | 18:6a4db94011d3 | 41 | |
sahilmgandhi | 18:6a4db94011d3 | 42 | (#) Configure the Communication Speed, Duty cycle, Addressing mode, Own Address1, |
sahilmgandhi | 18:6a4db94011d3 | 43 | Dual Addressing mode, Own Address2, General call and Nostretch mode in the hi2c Init structure. |
sahilmgandhi | 18:6a4db94011d3 | 44 | |
sahilmgandhi | 18:6a4db94011d3 | 45 | (#) Initialize the I2C registers by calling the HAL_I2C_Init(), configures also the low level Hardware |
sahilmgandhi | 18:6a4db94011d3 | 46 | (GPIO, CLOCK, NVIC...etc) by calling the customized HAL_I2C_MspInit(&hi2c) API. |
sahilmgandhi | 18:6a4db94011d3 | 47 | |
sahilmgandhi | 18:6a4db94011d3 | 48 | (#) To check if target device is ready for communication, use the function HAL_I2C_IsDeviceReady() |
sahilmgandhi | 18:6a4db94011d3 | 49 | |
sahilmgandhi | 18:6a4db94011d3 | 50 | (#) For I2C IO and IO MEM operations, three operation modes are available within this driver : |
sahilmgandhi | 18:6a4db94011d3 | 51 | |
sahilmgandhi | 18:6a4db94011d3 | 52 | *** Polling mode IO operation *** |
sahilmgandhi | 18:6a4db94011d3 | 53 | ================================= |
sahilmgandhi | 18:6a4db94011d3 | 54 | [..] |
sahilmgandhi | 18:6a4db94011d3 | 55 | (+) Transmit in master mode an amount of data in blocking mode using HAL_I2C_Master_Transmit() |
sahilmgandhi | 18:6a4db94011d3 | 56 | (+) Receive in master mode an amount of data in blocking mode using HAL_I2C_Master_Receive() |
sahilmgandhi | 18:6a4db94011d3 | 57 | (+) Transmit in slave mode an amount of data in blocking mode using HAL_I2C_Slave_Transmit() |
sahilmgandhi | 18:6a4db94011d3 | 58 | (+) Receive in slave mode an amount of data in blocking mode using HAL_I2C_Slave_Receive() |
sahilmgandhi | 18:6a4db94011d3 | 59 | |
sahilmgandhi | 18:6a4db94011d3 | 60 | *** Polling mode IO MEM operation *** |
sahilmgandhi | 18:6a4db94011d3 | 61 | ===================================== |
sahilmgandhi | 18:6a4db94011d3 | 62 | [..] |
sahilmgandhi | 18:6a4db94011d3 | 63 | (+) Write an amount of data in blocking mode to a specific memory address using HAL_I2C_Mem_Write() |
sahilmgandhi | 18:6a4db94011d3 | 64 | (+) Read an amount of data in blocking mode from a specific memory address using HAL_I2C_Mem_Read() |
sahilmgandhi | 18:6a4db94011d3 | 65 | |
sahilmgandhi | 18:6a4db94011d3 | 66 | |
sahilmgandhi | 18:6a4db94011d3 | 67 | *** Interrupt mode IO operation *** |
sahilmgandhi | 18:6a4db94011d3 | 68 | =================================== |
sahilmgandhi | 18:6a4db94011d3 | 69 | [..] |
sahilmgandhi | 18:6a4db94011d3 | 70 | (+) Transmit in master mode an amount of data in non blocking mode using HAL_I2C_Master_Transmit_IT() |
sahilmgandhi | 18:6a4db94011d3 | 71 | (+) At transmission end of transfer HAL_I2C_MasterTxCpltCallback is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 72 | add his own code by customization of function pointer HAL_I2C_MasterTxCpltCallback |
sahilmgandhi | 18:6a4db94011d3 | 73 | (+) Receive in master mode an amount of data in non blocking mode using HAL_I2C_Master_Receive_IT() |
sahilmgandhi | 18:6a4db94011d3 | 74 | (+) At reception end of transfer HAL_I2C_MasterRxCpltCallback is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 75 | add his own code by customization of function pointer HAL_I2C_MasterRxCpltCallback |
sahilmgandhi | 18:6a4db94011d3 | 76 | (+) Transmit in slave mode an amount of data in non blocking mode using HAL_I2C_Slave_Transmit_IT() |
sahilmgandhi | 18:6a4db94011d3 | 77 | (+) At transmission end of transfer HAL_I2C_SlaveTxCpltCallback is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 78 | add his own code by customization of function pointer HAL_I2C_SlaveTxCpltCallback |
sahilmgandhi | 18:6a4db94011d3 | 79 | (+) Receive in slave mode an amount of data in non blocking mode using HAL_I2C_Slave_Receive_IT() |
sahilmgandhi | 18:6a4db94011d3 | 80 | (+) At reception end of transfer HAL_I2C_SlaveRxCpltCallback is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 81 | add his own code by customization of function pointer HAL_I2C_SlaveRxCpltCallback |
sahilmgandhi | 18:6a4db94011d3 | 82 | (+) In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 83 | add his own code by customization of function pointer HAL_I2C_ErrorCallback |
sahilmgandhi | 18:6a4db94011d3 | 84 | |
sahilmgandhi | 18:6a4db94011d3 | 85 | *** Interrupt mode IO sequential operation *** |
sahilmgandhi | 18:6a4db94011d3 | 86 | ============================================== |
sahilmgandhi | 18:6a4db94011d3 | 87 | [..] |
sahilmgandhi | 18:6a4db94011d3 | 88 | (+@) These interfaces allow to manage a sequential transfer with a repeated start condition |
sahilmgandhi | 18:6a4db94011d3 | 89 | when a direction change during transfer |
sahilmgandhi | 18:6a4db94011d3 | 90 | (+) A specific option manage the different steps of a sequential transfer |
sahilmgandhi | 18:6a4db94011d3 | 91 | (+) Differents steps option I2C_XferOptions_definition are listed below : |
sahilmgandhi | 18:6a4db94011d3 | 92 | (++) I2C_FIRST_AND_LAST_FRAME: No sequential usage, functionnal is same as associated interfaces in no sequential mode |
sahilmgandhi | 18:6a4db94011d3 | 93 | (++) I2C_FIRST_FRAME: Sequential usage, this option allow to manage a start condition with data to transfer without a final stop condition |
sahilmgandhi | 18:6a4db94011d3 | 94 | (++) I2C_NEXT_FRAME: Sequential usage, this option allow to manage a restart condition with new data to transfer if the direction change or |
sahilmgandhi | 18:6a4db94011d3 | 95 | manage only the new data to transfer if no direction change and without a final stop condition in both cases |
sahilmgandhi | 18:6a4db94011d3 | 96 | (++) I2C_LAST_FRAME: Sequential usage, this option allow to manage a restart condition with new data to transfer if the direction change or |
sahilmgandhi | 18:6a4db94011d3 | 97 | manage only the new data to transfer if no direction change and with a final stop condition in both cases |
sahilmgandhi | 18:6a4db94011d3 | 98 | |
sahilmgandhi | 18:6a4db94011d3 | 99 | (+) Sequential transmit in master I2C mode an amount of data in non-blocking mode using HAL_I2C_Master_Sequential_Transmit_IT() |
sahilmgandhi | 18:6a4db94011d3 | 100 | (++) At transmission end of current frame transfer, HAL_I2C_MasterTxCpltCallback() is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 101 | add his own code by customization of function pointer HAL_I2C_MasterTxCpltCallback() |
sahilmgandhi | 18:6a4db94011d3 | 102 | (+) Sequential receive in master I2C mode an amount of data in non-blocking mode using HAL_I2C_Master_Sequential_Receive_IT() |
sahilmgandhi | 18:6a4db94011d3 | 103 | (++) At reception end of current frame transfer, HAL_I2C_MasterRxCpltCallback() is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 104 | add his own code by customization of function pointer HAL_I2C_MasterRxCpltCallback() |
sahilmgandhi | 18:6a4db94011d3 | 105 | (+) Abort a master I2C process communication with Interrupt using HAL_I2C_Master_Abort_IT() |
sahilmgandhi | 18:6a4db94011d3 | 106 | (++) The associated previous transfer callback is called at the end of abort process |
sahilmgandhi | 18:6a4db94011d3 | 107 | (++) mean HAL_I2C_MasterTxCpltCallback() in case of previous state was master transmit |
sahilmgandhi | 18:6a4db94011d3 | 108 | (++) mean HAL_I2c_MasterRxCpltCallback() in case of previous state was master receive |
sahilmgandhi | 18:6a4db94011d3 | 109 | (+) Enable/disable the Address listen mode in slave I2C mode |
sahilmgandhi | 18:6a4db94011d3 | 110 | using HAL_I2C_EnableListen_IT() HAL_I2C_DisableListen_IT() |
sahilmgandhi | 18:6a4db94011d3 | 111 | (++) When address slave I2C match, HAL_I2C_AddrCallback() is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 112 | add his own code to check the Address Match Code and the transmission direction request by master (Write/Read). |
sahilmgandhi | 18:6a4db94011d3 | 113 | (++) At Listen mode end HAL_I2C_ListenCpltCallback() is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 114 | add his own code by customization of function pointer HAL_I2C_ListenCpltCallback() |
sahilmgandhi | 18:6a4db94011d3 | 115 | (+) Sequential transmit in slave I2C mode an amount of data in non-blocking mode using HAL_I2C_Slave_Sequential_Transmit_IT() |
sahilmgandhi | 18:6a4db94011d3 | 116 | (++) At transmission end of current frame transfer, HAL_I2C_SlaveTxCpltCallback() is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 117 | add his own code by customization of function pointer HAL_I2C_SlaveTxCpltCallback() |
sahilmgandhi | 18:6a4db94011d3 | 118 | (+) Sequential receive in slave I2C mode an amount of data in non-blocking mode using HAL_I2C_Slave_Sequential_Receive_IT() |
sahilmgandhi | 18:6a4db94011d3 | 119 | (++) At reception end of current frame transfer, HAL_I2C_SlaveRxCpltCallback() is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 120 | add his own code by customization of function pointer HAL_I2C_SlaveRxCpltCallback() |
sahilmgandhi | 18:6a4db94011d3 | 121 | |
sahilmgandhi | 18:6a4db94011d3 | 122 | |
sahilmgandhi | 18:6a4db94011d3 | 123 | *** Interrupt mode IO MEM operation *** |
sahilmgandhi | 18:6a4db94011d3 | 124 | ======================================= |
sahilmgandhi | 18:6a4db94011d3 | 125 | [..] |
sahilmgandhi | 18:6a4db94011d3 | 126 | (+) Write an amount of data in no-blocking mode with Interrupt to a specific memory address using |
sahilmgandhi | 18:6a4db94011d3 | 127 | HAL_I2C_Mem_Write_IT() |
sahilmgandhi | 18:6a4db94011d3 | 128 | (+) At MEM end of write transfer HAL_I2C_MemTxCpltCallback is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 129 | add his own code by customization of function pointer HAL_I2C_MemTxCpltCallback |
sahilmgandhi | 18:6a4db94011d3 | 130 | (+) Read an amount of data in no-blocking mode with Interrupt from a specific memory address using |
sahilmgandhi | 18:6a4db94011d3 | 131 | HAL_I2C_Mem_Read_IT() |
sahilmgandhi | 18:6a4db94011d3 | 132 | (+) At MEM end of read transfer HAL_I2C_MemRxCpltCallback is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 133 | add his own code by customization of function pointer HAL_I2C_MemRxCpltCallback |
sahilmgandhi | 18:6a4db94011d3 | 134 | (+) In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 135 | add his own code by customization of function pointer HAL_I2C_ErrorCallback |
sahilmgandhi | 18:6a4db94011d3 | 136 | |
sahilmgandhi | 18:6a4db94011d3 | 137 | *** DMA mode IO operation *** |
sahilmgandhi | 18:6a4db94011d3 | 138 | ============================== |
sahilmgandhi | 18:6a4db94011d3 | 139 | [..] |
sahilmgandhi | 18:6a4db94011d3 | 140 | (+) Transmit in master mode an amount of data in non blocking mode (DMA) using |
sahilmgandhi | 18:6a4db94011d3 | 141 | HAL_I2C_Master_Transmit_DMA() |
sahilmgandhi | 18:6a4db94011d3 | 142 | (+) At transmission end of transfer HAL_I2C_MasterTxCpltCallback is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 143 | add his own code by customization of function pointer HAL_I2C_MasterTxCpltCallback |
sahilmgandhi | 18:6a4db94011d3 | 144 | (+) Receive in master mode an amount of data in non blocking mode (DMA) using |
sahilmgandhi | 18:6a4db94011d3 | 145 | HAL_I2C_Master_Receive_DMA() |
sahilmgandhi | 18:6a4db94011d3 | 146 | (+) At reception end of transfer HAL_I2C_MasterRxCpltCallback is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 147 | add his own code by customization of function pointer HAL_I2C_MasterRxCpltCallback |
sahilmgandhi | 18:6a4db94011d3 | 148 | (+) Transmit in slave mode an amount of data in non blocking mode (DMA) using |
sahilmgandhi | 18:6a4db94011d3 | 149 | HAL_I2C_Slave_Transmit_DMA() |
sahilmgandhi | 18:6a4db94011d3 | 150 | (+) At transmission end of transfer HAL_I2C_SlaveTxCpltCallback is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 151 | add his own code by customization of function pointer HAL_I2C_SlaveTxCpltCallback |
sahilmgandhi | 18:6a4db94011d3 | 152 | (+) Receive in slave mode an amount of data in non blocking mode (DMA) using |
sahilmgandhi | 18:6a4db94011d3 | 153 | HAL_I2C_Slave_Receive_DMA() |
sahilmgandhi | 18:6a4db94011d3 | 154 | (+) At reception end of transfer HAL_I2C_SlaveRxCpltCallback is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 155 | add his own code by customization of function pointer HAL_I2C_SlaveRxCpltCallback |
sahilmgandhi | 18:6a4db94011d3 | 156 | (+) In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 157 | add his own code by customization of function pointer HAL_I2C_ErrorCallback |
sahilmgandhi | 18:6a4db94011d3 | 158 | |
sahilmgandhi | 18:6a4db94011d3 | 159 | *** DMA mode IO MEM operation *** |
sahilmgandhi | 18:6a4db94011d3 | 160 | ================================= |
sahilmgandhi | 18:6a4db94011d3 | 161 | [..] |
sahilmgandhi | 18:6a4db94011d3 | 162 | (+) Write an amount of data in no-blocking mode with DMA to a specific memory address using |
sahilmgandhi | 18:6a4db94011d3 | 163 | HAL_I2C_Mem_Write_DMA() |
sahilmgandhi | 18:6a4db94011d3 | 164 | (+) At MEM end of write transfer HAL_I2C_MemTxCpltCallback is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 165 | add his own code by customization of function pointer HAL_I2C_MemTxCpltCallback |
sahilmgandhi | 18:6a4db94011d3 | 166 | (+) Read an amount of data in no-blocking mode with DMA from a specific memory address using |
sahilmgandhi | 18:6a4db94011d3 | 167 | HAL_I2C_Mem_Read_DMA() |
sahilmgandhi | 18:6a4db94011d3 | 168 | (+) At MEM end of read transfer HAL_I2C_MemRxCpltCallback is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 169 | add his own code by customization of function pointer HAL_I2C_MemRxCpltCallback |
sahilmgandhi | 18:6a4db94011d3 | 170 | (+) In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and user can |
sahilmgandhi | 18:6a4db94011d3 | 171 | add his own code by customization of function pointer HAL_I2C_ErrorCallback |
sahilmgandhi | 18:6a4db94011d3 | 172 | |
sahilmgandhi | 18:6a4db94011d3 | 173 | |
sahilmgandhi | 18:6a4db94011d3 | 174 | *** I2C HAL driver macros list *** |
sahilmgandhi | 18:6a4db94011d3 | 175 | ================================== |
sahilmgandhi | 18:6a4db94011d3 | 176 | [..] |
sahilmgandhi | 18:6a4db94011d3 | 177 | Below the list of most used macros in I2C HAL driver. |
sahilmgandhi | 18:6a4db94011d3 | 178 | |
sahilmgandhi | 18:6a4db94011d3 | 179 | (+) __HAL_I2C_ENABLE: Enable the I2C peripheral |
sahilmgandhi | 18:6a4db94011d3 | 180 | (+) __HAL_I2C_DISABLE: Disable the I2C peripheral |
sahilmgandhi | 18:6a4db94011d3 | 181 | (+) __HAL_I2C_GET_FLAG: Checks whether the specified I2C flag is set or not |
sahilmgandhi | 18:6a4db94011d3 | 182 | (+) __HAL_I2C_CLEAR_FLAG: Clear the specified I2C pending flag |
sahilmgandhi | 18:6a4db94011d3 | 183 | (+) __HAL_I2C_ENABLE_IT: Enable the specified I2C interrupt |
sahilmgandhi | 18:6a4db94011d3 | 184 | (+) __HAL_I2C_DISABLE_IT: Disable the specified I2C interrupt |
sahilmgandhi | 18:6a4db94011d3 | 185 | |
sahilmgandhi | 18:6a4db94011d3 | 186 | [..] |
sahilmgandhi | 18:6a4db94011d3 | 187 | (@) You can refer to the I2C HAL driver header file for more useful macros |
sahilmgandhi | 18:6a4db94011d3 | 188 | |
sahilmgandhi | 18:6a4db94011d3 | 189 | |
sahilmgandhi | 18:6a4db94011d3 | 190 | @endverbatim |
sahilmgandhi | 18:6a4db94011d3 | 191 | ****************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 192 | * @attention |
sahilmgandhi | 18:6a4db94011d3 | 193 | * |
sahilmgandhi | 18:6a4db94011d3 | 194 | * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> |
sahilmgandhi | 18:6a4db94011d3 | 195 | * |
sahilmgandhi | 18:6a4db94011d3 | 196 | * Redistribution and use in source and binary forms, with or without modification, |
sahilmgandhi | 18:6a4db94011d3 | 197 | * are permitted provided that the following conditions are met: |
sahilmgandhi | 18:6a4db94011d3 | 198 | * 1. Redistributions of source code must retain the above copyright notice, |
sahilmgandhi | 18:6a4db94011d3 | 199 | * this list of conditions and the following disclaimer. |
sahilmgandhi | 18:6a4db94011d3 | 200 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
sahilmgandhi | 18:6a4db94011d3 | 201 | * this list of conditions and the following disclaimer in the documentation |
sahilmgandhi | 18:6a4db94011d3 | 202 | * and/or other materials provided with the distribution. |
sahilmgandhi | 18:6a4db94011d3 | 203 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
sahilmgandhi | 18:6a4db94011d3 | 204 | * may be used to endorse or promote products derived from this software |
sahilmgandhi | 18:6a4db94011d3 | 205 | * without specific prior written permission. |
sahilmgandhi | 18:6a4db94011d3 | 206 | * |
sahilmgandhi | 18:6a4db94011d3 | 207 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
sahilmgandhi | 18:6a4db94011d3 | 208 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
sahilmgandhi | 18:6a4db94011d3 | 209 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
sahilmgandhi | 18:6a4db94011d3 | 210 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
sahilmgandhi | 18:6a4db94011d3 | 211 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
sahilmgandhi | 18:6a4db94011d3 | 212 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
sahilmgandhi | 18:6a4db94011d3 | 213 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
sahilmgandhi | 18:6a4db94011d3 | 214 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
sahilmgandhi | 18:6a4db94011d3 | 215 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
sahilmgandhi | 18:6a4db94011d3 | 216 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
sahilmgandhi | 18:6a4db94011d3 | 217 | * |
sahilmgandhi | 18:6a4db94011d3 | 218 | ****************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 219 | */ |
sahilmgandhi | 18:6a4db94011d3 | 220 | |
sahilmgandhi | 18:6a4db94011d3 | 221 | /* Includes ------------------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 222 | #include "stm32f4xx_hal.h" |
sahilmgandhi | 18:6a4db94011d3 | 223 | |
sahilmgandhi | 18:6a4db94011d3 | 224 | /** @addtogroup STM32F4xx_HAL_Driver |
sahilmgandhi | 18:6a4db94011d3 | 225 | * @{ |
sahilmgandhi | 18:6a4db94011d3 | 226 | */ |
sahilmgandhi | 18:6a4db94011d3 | 227 | |
sahilmgandhi | 18:6a4db94011d3 | 228 | /** @defgroup I2C I2C |
sahilmgandhi | 18:6a4db94011d3 | 229 | * @brief I2C HAL module driver |
sahilmgandhi | 18:6a4db94011d3 | 230 | * @{ |
sahilmgandhi | 18:6a4db94011d3 | 231 | */ |
sahilmgandhi | 18:6a4db94011d3 | 232 | |
sahilmgandhi | 18:6a4db94011d3 | 233 | #ifdef HAL_I2C_MODULE_ENABLED |
sahilmgandhi | 18:6a4db94011d3 | 234 | |
sahilmgandhi | 18:6a4db94011d3 | 235 | /* Private typedef -----------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 236 | /* Private define ------------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 237 | /** @addtogroup I2C_Private_Constants |
sahilmgandhi | 18:6a4db94011d3 | 238 | * @{ |
sahilmgandhi | 18:6a4db94011d3 | 239 | */ |
sahilmgandhi | 18:6a4db94011d3 | 240 | #define I2C_TIMEOUT_FLAG ((uint32_t)35U) /*!< Timeout 35 ms */ |
sahilmgandhi | 18:6a4db94011d3 | 241 | #define I2C_TIMEOUT_ADDR_SLAVE ((uint32_t)10000U) /*!< Timeout 10 s */ |
sahilmgandhi | 18:6a4db94011d3 | 242 | #define I2C_TIMEOUT_BUSY_FLAG ((uint32_t)25U) /*!< Timeout 25 ms */ |
sahilmgandhi | 18:6a4db94011d3 | 243 | #define I2C_NO_OPTION_FRAME ((uint32_t)0xFFFF0000U) /*!< XferOptions default value */ |
sahilmgandhi | 18:6a4db94011d3 | 244 | |
sahilmgandhi | 18:6a4db94011d3 | 245 | /* Private define for @ref PreviousState usage */ |
sahilmgandhi | 18:6a4db94011d3 | 246 | #define I2C_STATE_MSK ((uint32_t)((HAL_I2C_STATE_BUSY_TX | HAL_I2C_STATE_BUSY_RX) & (~(uint32_t)HAL_I2C_STATE_READY))) /*!< Mask State define, keep only RX and TX bits */ |
sahilmgandhi | 18:6a4db94011d3 | 247 | #define I2C_STATE_NONE ((uint32_t)(HAL_I2C_MODE_NONE)) /*!< Default Value */ |
sahilmgandhi | 18:6a4db94011d3 | 248 | #define I2C_STATE_MASTER_BUSY_TX ((uint32_t)((HAL_I2C_STATE_BUSY_TX & I2C_STATE_MSK) | HAL_I2C_MODE_MASTER)) /*!< Master Busy TX, combinaison of State LSB and Mode enum */ |
sahilmgandhi | 18:6a4db94011d3 | 249 | #define I2C_STATE_MASTER_BUSY_RX ((uint32_t)((HAL_I2C_STATE_BUSY_RX & I2C_STATE_MSK) | HAL_I2C_MODE_MASTER)) /*!< Master Busy RX, combinaison of State LSB and Mode enum */ |
sahilmgandhi | 18:6a4db94011d3 | 250 | #define I2C_STATE_SLAVE_BUSY_TX ((uint32_t)((HAL_I2C_STATE_BUSY_TX & I2C_STATE_MSK) | HAL_I2C_MODE_SLAVE)) /*!< Slave Busy TX, combinaison of State LSB and Mode enum */ |
sahilmgandhi | 18:6a4db94011d3 | 251 | #define I2C_STATE_SLAVE_BUSY_RX ((uint32_t)((HAL_I2C_STATE_BUSY_RX & I2C_STATE_MSK) | HAL_I2C_MODE_SLAVE)) /*!< Slave Busy RX, combinaison of State LSB and Mode enum */ |
sahilmgandhi | 18:6a4db94011d3 | 252 | |
sahilmgandhi | 18:6a4db94011d3 | 253 | /** |
sahilmgandhi | 18:6a4db94011d3 | 254 | * @} |
sahilmgandhi | 18:6a4db94011d3 | 255 | */ |
sahilmgandhi | 18:6a4db94011d3 | 256 | |
sahilmgandhi | 18:6a4db94011d3 | 257 | /* Private macro -------------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 258 | /* Private variables ---------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 259 | /* Private function prototypes -----------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 260 | /** @addtogroup I2C_Private_Functions |
sahilmgandhi | 18:6a4db94011d3 | 261 | * @{ |
sahilmgandhi | 18:6a4db94011d3 | 262 | */ |
sahilmgandhi | 18:6a4db94011d3 | 263 | /* Private functions to handle DMA transfer */ |
sahilmgandhi | 18:6a4db94011d3 | 264 | static void I2C_DMAXferCplt(DMA_HandleTypeDef *hdma); |
sahilmgandhi | 18:6a4db94011d3 | 265 | static void I2C_DMAError(DMA_HandleTypeDef *hdma); |
sahilmgandhi | 18:6a4db94011d3 | 266 | static void I2C_DMAAbort(DMA_HandleTypeDef *hdma); |
sahilmgandhi | 18:6a4db94011d3 | 267 | |
sahilmgandhi | 18:6a4db94011d3 | 268 | static void I2C_ITError(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 269 | |
sahilmgandhi | 18:6a4db94011d3 | 270 | static HAL_StatusTypeDef I2C_MasterRequestWrite(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Timeout, uint32_t Tickstart); |
sahilmgandhi | 18:6a4db94011d3 | 271 | static HAL_StatusTypeDef I2C_MasterRequestRead(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Timeout, uint32_t Tickstart); |
sahilmgandhi | 18:6a4db94011d3 | 272 | static HAL_StatusTypeDef I2C_RequestMemoryWrite(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint32_t Timeout, uint32_t Tickstart); |
sahilmgandhi | 18:6a4db94011d3 | 273 | static HAL_StatusTypeDef I2C_RequestMemoryRead(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint32_t Timeout, uint32_t Tickstart); |
sahilmgandhi | 18:6a4db94011d3 | 274 | static HAL_StatusTypeDef I2C_WaitOnFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Flag, FlagStatus Status, uint32_t Timeout, uint32_t Tickstart); |
sahilmgandhi | 18:6a4db94011d3 | 275 | static HAL_StatusTypeDef I2C_WaitOnMasterAddressFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Flag, uint32_t Timeout, uint32_t Tickstart); |
sahilmgandhi | 18:6a4db94011d3 | 276 | static HAL_StatusTypeDef I2C_WaitOnTXEFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart); |
sahilmgandhi | 18:6a4db94011d3 | 277 | static HAL_StatusTypeDef I2C_WaitOnBTFFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart); |
sahilmgandhi | 18:6a4db94011d3 | 278 | static HAL_StatusTypeDef I2C_WaitOnRXNEFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart); |
sahilmgandhi | 18:6a4db94011d3 | 279 | static HAL_StatusTypeDef I2C_WaitOnSTOPFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart); |
sahilmgandhi | 18:6a4db94011d3 | 280 | static HAL_StatusTypeDef I2C_IsAcknowledgeFailed(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 281 | |
sahilmgandhi | 18:6a4db94011d3 | 282 | /* Private functions for I2C transfer IRQ handler */ |
sahilmgandhi | 18:6a4db94011d3 | 283 | static HAL_StatusTypeDef I2C_MasterTransmit_TXE(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 284 | static HAL_StatusTypeDef I2C_MasterTransmit_BTF(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 285 | static HAL_StatusTypeDef I2C_MasterReceive_RXNE(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 286 | static HAL_StatusTypeDef I2C_MasterReceive_BTF(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 287 | static HAL_StatusTypeDef I2C_Master_SB(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 288 | static HAL_StatusTypeDef I2C_Master_ADD10(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 289 | static HAL_StatusTypeDef I2C_Master_ADDR(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 290 | |
sahilmgandhi | 18:6a4db94011d3 | 291 | static HAL_StatusTypeDef I2C_SlaveTransmit_TXE(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 292 | static HAL_StatusTypeDef I2C_SlaveTransmit_BTF(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 293 | static HAL_StatusTypeDef I2C_SlaveReceive_RXNE(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 294 | static HAL_StatusTypeDef I2C_SlaveReceive_BTF(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 295 | static HAL_StatusTypeDef I2C_Slave_ADDR(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 296 | static HAL_StatusTypeDef I2C_Slave_STOPF(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 297 | static HAL_StatusTypeDef I2C_Slave_AF(I2C_HandleTypeDef *hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 298 | /** |
sahilmgandhi | 18:6a4db94011d3 | 299 | * @} |
sahilmgandhi | 18:6a4db94011d3 | 300 | */ |
sahilmgandhi | 18:6a4db94011d3 | 301 | |
sahilmgandhi | 18:6a4db94011d3 | 302 | /* Exported functions --------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 303 | /** @defgroup I2C_Exported_Functions I2C Exported Functions |
sahilmgandhi | 18:6a4db94011d3 | 304 | * @{ |
sahilmgandhi | 18:6a4db94011d3 | 305 | */ |
sahilmgandhi | 18:6a4db94011d3 | 306 | |
sahilmgandhi | 18:6a4db94011d3 | 307 | /** @defgroup I2C_Exported_Functions_Group1 Initialization and de-initialization functions |
sahilmgandhi | 18:6a4db94011d3 | 308 | * @brief Initialization and Configuration functions |
sahilmgandhi | 18:6a4db94011d3 | 309 | * |
sahilmgandhi | 18:6a4db94011d3 | 310 | @verbatim |
sahilmgandhi | 18:6a4db94011d3 | 311 | =============================================================================== |
sahilmgandhi | 18:6a4db94011d3 | 312 | ##### Initialization and de-initialization functions ##### |
sahilmgandhi | 18:6a4db94011d3 | 313 | =============================================================================== |
sahilmgandhi | 18:6a4db94011d3 | 314 | [..] This subsection provides a set of functions allowing to initialize and |
sahilmgandhi | 18:6a4db94011d3 | 315 | de-initialize the I2Cx peripheral: |
sahilmgandhi | 18:6a4db94011d3 | 316 | |
sahilmgandhi | 18:6a4db94011d3 | 317 | (+) User must Implement HAL_I2C_MspInit() function in which he configures |
sahilmgandhi | 18:6a4db94011d3 | 318 | all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC). |
sahilmgandhi | 18:6a4db94011d3 | 319 | |
sahilmgandhi | 18:6a4db94011d3 | 320 | (+) Call the function HAL_I2C_Init() to configure the selected device with |
sahilmgandhi | 18:6a4db94011d3 | 321 | the selected configuration: |
sahilmgandhi | 18:6a4db94011d3 | 322 | (++) Communication Speed |
sahilmgandhi | 18:6a4db94011d3 | 323 | (++) Duty cycle |
sahilmgandhi | 18:6a4db94011d3 | 324 | (++) Addressing mode |
sahilmgandhi | 18:6a4db94011d3 | 325 | (++) Own Address 1 |
sahilmgandhi | 18:6a4db94011d3 | 326 | (++) Dual Addressing mode |
sahilmgandhi | 18:6a4db94011d3 | 327 | (++) Own Address 2 |
sahilmgandhi | 18:6a4db94011d3 | 328 | (++) General call mode |
sahilmgandhi | 18:6a4db94011d3 | 329 | (++) Nostretch mode |
sahilmgandhi | 18:6a4db94011d3 | 330 | |
sahilmgandhi | 18:6a4db94011d3 | 331 | (+) Call the function HAL_I2C_DeInit() to restore the default configuration |
sahilmgandhi | 18:6a4db94011d3 | 332 | of the selected I2Cx peripheral. |
sahilmgandhi | 18:6a4db94011d3 | 333 | |
sahilmgandhi | 18:6a4db94011d3 | 334 | @endverbatim |
sahilmgandhi | 18:6a4db94011d3 | 335 | * @{ |
sahilmgandhi | 18:6a4db94011d3 | 336 | */ |
sahilmgandhi | 18:6a4db94011d3 | 337 | |
sahilmgandhi | 18:6a4db94011d3 | 338 | /** |
sahilmgandhi | 18:6a4db94011d3 | 339 | * @brief Initializes the I2C according to the specified parameters |
sahilmgandhi | 18:6a4db94011d3 | 340 | * in the I2C_InitTypeDef and create the associated handle. |
sahilmgandhi | 18:6a4db94011d3 | 341 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 342 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 343 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 344 | */ |
sahilmgandhi | 18:6a4db94011d3 | 345 | HAL_StatusTypeDef HAL_I2C_Init(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 346 | { |
sahilmgandhi | 18:6a4db94011d3 | 347 | uint32_t freqrange = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 348 | uint32_t pclk1 = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 349 | |
sahilmgandhi | 18:6a4db94011d3 | 350 | /* Check the I2C handle allocation */ |
sahilmgandhi | 18:6a4db94011d3 | 351 | if(hi2c == NULL) |
sahilmgandhi | 18:6a4db94011d3 | 352 | { |
sahilmgandhi | 18:6a4db94011d3 | 353 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 354 | } |
sahilmgandhi | 18:6a4db94011d3 | 355 | |
sahilmgandhi | 18:6a4db94011d3 | 356 | /* Check the parameters */ |
sahilmgandhi | 18:6a4db94011d3 | 357 | assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance)); |
sahilmgandhi | 18:6a4db94011d3 | 358 | assert_param(IS_I2C_CLOCK_SPEED(hi2c->Init.ClockSpeed)); |
sahilmgandhi | 18:6a4db94011d3 | 359 | assert_param(IS_I2C_DUTY_CYCLE(hi2c->Init.DutyCycle)); |
sahilmgandhi | 18:6a4db94011d3 | 360 | assert_param(IS_I2C_OWN_ADDRESS1(hi2c->Init.OwnAddress1)); |
sahilmgandhi | 18:6a4db94011d3 | 361 | assert_param(IS_I2C_ADDRESSING_MODE(hi2c->Init.AddressingMode)); |
sahilmgandhi | 18:6a4db94011d3 | 362 | assert_param(IS_I2C_DUAL_ADDRESS(hi2c->Init.DualAddressMode)); |
sahilmgandhi | 18:6a4db94011d3 | 363 | assert_param(IS_I2C_OWN_ADDRESS2(hi2c->Init.OwnAddress2)); |
sahilmgandhi | 18:6a4db94011d3 | 364 | assert_param(IS_I2C_GENERAL_CALL(hi2c->Init.GeneralCallMode)); |
sahilmgandhi | 18:6a4db94011d3 | 365 | assert_param(IS_I2C_NO_STRETCH(hi2c->Init.NoStretchMode)); |
sahilmgandhi | 18:6a4db94011d3 | 366 | |
sahilmgandhi | 18:6a4db94011d3 | 367 | if(hi2c->State == HAL_I2C_STATE_RESET) |
sahilmgandhi | 18:6a4db94011d3 | 368 | { |
sahilmgandhi | 18:6a4db94011d3 | 369 | /* Allocate lock resource and initialize it */ |
sahilmgandhi | 18:6a4db94011d3 | 370 | hi2c->Lock = HAL_UNLOCKED; |
sahilmgandhi | 18:6a4db94011d3 | 371 | /* Init the low level hardware : GPIO, CLOCK, NVIC */ |
sahilmgandhi | 18:6a4db94011d3 | 372 | HAL_I2C_MspInit(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 373 | } |
sahilmgandhi | 18:6a4db94011d3 | 374 | |
sahilmgandhi | 18:6a4db94011d3 | 375 | hi2c->State = HAL_I2C_STATE_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 376 | |
sahilmgandhi | 18:6a4db94011d3 | 377 | /* Disable the selected I2C peripheral */ |
sahilmgandhi | 18:6a4db94011d3 | 378 | __HAL_I2C_DISABLE(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 379 | |
sahilmgandhi | 18:6a4db94011d3 | 380 | /* Get PCLK1 frequency */ |
sahilmgandhi | 18:6a4db94011d3 | 381 | pclk1 = HAL_RCC_GetPCLK1Freq(); |
sahilmgandhi | 18:6a4db94011d3 | 382 | |
sahilmgandhi | 18:6a4db94011d3 | 383 | /* Calculate frequency range */ |
sahilmgandhi | 18:6a4db94011d3 | 384 | freqrange = I2C_FREQRANGE(pclk1); |
sahilmgandhi | 18:6a4db94011d3 | 385 | |
sahilmgandhi | 18:6a4db94011d3 | 386 | /*---------------------------- I2Cx CR2 Configuration ----------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 387 | /* Configure I2Cx: Frequency range */ |
sahilmgandhi | 18:6a4db94011d3 | 388 | hi2c->Instance->CR2 = freqrange; |
sahilmgandhi | 18:6a4db94011d3 | 389 | |
sahilmgandhi | 18:6a4db94011d3 | 390 | /*---------------------------- I2Cx TRISE Configuration --------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 391 | /* Configure I2Cx: Rise Time */ |
sahilmgandhi | 18:6a4db94011d3 | 392 | hi2c->Instance->TRISE = I2C_RISE_TIME(freqrange, hi2c->Init.ClockSpeed); |
sahilmgandhi | 18:6a4db94011d3 | 393 | |
sahilmgandhi | 18:6a4db94011d3 | 394 | /*---------------------------- I2Cx CCR Configuration ----------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 395 | /* Configure I2Cx: Speed */ |
sahilmgandhi | 18:6a4db94011d3 | 396 | hi2c->Instance->CCR = I2C_SPEED(pclk1, hi2c->Init.ClockSpeed, hi2c->Init.DutyCycle); |
sahilmgandhi | 18:6a4db94011d3 | 397 | |
sahilmgandhi | 18:6a4db94011d3 | 398 | /*---------------------------- I2Cx CR1 Configuration ----------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 399 | /* Configure I2Cx: Generalcall and NoStretch mode */ |
sahilmgandhi | 18:6a4db94011d3 | 400 | hi2c->Instance->CR1 = (hi2c->Init.GeneralCallMode | hi2c->Init.NoStretchMode); |
sahilmgandhi | 18:6a4db94011d3 | 401 | |
sahilmgandhi | 18:6a4db94011d3 | 402 | /*---------------------------- I2Cx OAR1 Configuration ---------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 403 | /* Configure I2Cx: Own Address1 and addressing mode */ |
sahilmgandhi | 18:6a4db94011d3 | 404 | hi2c->Instance->OAR1 = (hi2c->Init.AddressingMode | hi2c->Init.OwnAddress1); |
sahilmgandhi | 18:6a4db94011d3 | 405 | |
sahilmgandhi | 18:6a4db94011d3 | 406 | /*---------------------------- I2Cx OAR2 Configuration ---------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 407 | /* Configure I2Cx: Dual mode and Own Address2 */ |
sahilmgandhi | 18:6a4db94011d3 | 408 | hi2c->Instance->OAR2 = (hi2c->Init.DualAddressMode | hi2c->Init.OwnAddress2); |
sahilmgandhi | 18:6a4db94011d3 | 409 | |
sahilmgandhi | 18:6a4db94011d3 | 410 | /* Enable the selected I2C peripheral */ |
sahilmgandhi | 18:6a4db94011d3 | 411 | __HAL_I2C_ENABLE(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 412 | |
sahilmgandhi | 18:6a4db94011d3 | 413 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 414 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 415 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 416 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 417 | |
sahilmgandhi | 18:6a4db94011d3 | 418 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 419 | } |
sahilmgandhi | 18:6a4db94011d3 | 420 | |
sahilmgandhi | 18:6a4db94011d3 | 421 | /** |
sahilmgandhi | 18:6a4db94011d3 | 422 | * @brief DeInitializes the I2C peripheral. |
sahilmgandhi | 18:6a4db94011d3 | 423 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 424 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 425 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 426 | */ |
sahilmgandhi | 18:6a4db94011d3 | 427 | HAL_StatusTypeDef HAL_I2C_DeInit(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 428 | { |
sahilmgandhi | 18:6a4db94011d3 | 429 | /* Check the I2C handle allocation */ |
sahilmgandhi | 18:6a4db94011d3 | 430 | if(hi2c == NULL) |
sahilmgandhi | 18:6a4db94011d3 | 431 | { |
sahilmgandhi | 18:6a4db94011d3 | 432 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 433 | } |
sahilmgandhi | 18:6a4db94011d3 | 434 | |
sahilmgandhi | 18:6a4db94011d3 | 435 | /* Check the parameters */ |
sahilmgandhi | 18:6a4db94011d3 | 436 | assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance)); |
sahilmgandhi | 18:6a4db94011d3 | 437 | |
sahilmgandhi | 18:6a4db94011d3 | 438 | hi2c->State = HAL_I2C_STATE_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 439 | |
sahilmgandhi | 18:6a4db94011d3 | 440 | /* Disable the I2C Peripheral Clock */ |
sahilmgandhi | 18:6a4db94011d3 | 441 | __HAL_I2C_DISABLE(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 442 | |
sahilmgandhi | 18:6a4db94011d3 | 443 | /* DeInit the low level hardware: GPIO, CLOCK, NVIC */ |
sahilmgandhi | 18:6a4db94011d3 | 444 | HAL_I2C_MspDeInit(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 445 | |
sahilmgandhi | 18:6a4db94011d3 | 446 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 447 | hi2c->State = HAL_I2C_STATE_RESET; |
sahilmgandhi | 18:6a4db94011d3 | 448 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 449 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 450 | |
sahilmgandhi | 18:6a4db94011d3 | 451 | /* Release Lock */ |
sahilmgandhi | 18:6a4db94011d3 | 452 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 453 | |
sahilmgandhi | 18:6a4db94011d3 | 454 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 455 | } |
sahilmgandhi | 18:6a4db94011d3 | 456 | |
sahilmgandhi | 18:6a4db94011d3 | 457 | /** |
sahilmgandhi | 18:6a4db94011d3 | 458 | * @brief I2C MSP Init. |
sahilmgandhi | 18:6a4db94011d3 | 459 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 460 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 461 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 462 | */ |
sahilmgandhi | 18:6a4db94011d3 | 463 | __weak void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 464 | { |
sahilmgandhi | 18:6a4db94011d3 | 465 | /* Prevent unused argument(s) compilation warning */ |
sahilmgandhi | 18:6a4db94011d3 | 466 | UNUSED(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 467 | /* NOTE : This function Should not be modified, when the callback is needed, |
sahilmgandhi | 18:6a4db94011d3 | 468 | the HAL_I2C_MspInit could be implemented in the user file |
sahilmgandhi | 18:6a4db94011d3 | 469 | */ |
sahilmgandhi | 18:6a4db94011d3 | 470 | } |
sahilmgandhi | 18:6a4db94011d3 | 471 | |
sahilmgandhi | 18:6a4db94011d3 | 472 | /** |
sahilmgandhi | 18:6a4db94011d3 | 473 | * @brief I2C MSP DeInit |
sahilmgandhi | 18:6a4db94011d3 | 474 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 475 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 476 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 477 | */ |
sahilmgandhi | 18:6a4db94011d3 | 478 | __weak void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 479 | { |
sahilmgandhi | 18:6a4db94011d3 | 480 | /* Prevent unused argument(s) compilation warning */ |
sahilmgandhi | 18:6a4db94011d3 | 481 | UNUSED(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 482 | /* NOTE : This function Should not be modified, when the callback is needed, |
sahilmgandhi | 18:6a4db94011d3 | 483 | the HAL_I2C_MspDeInit could be implemented in the user file |
sahilmgandhi | 18:6a4db94011d3 | 484 | */ |
sahilmgandhi | 18:6a4db94011d3 | 485 | } |
sahilmgandhi | 18:6a4db94011d3 | 486 | |
sahilmgandhi | 18:6a4db94011d3 | 487 | /** |
sahilmgandhi | 18:6a4db94011d3 | 488 | * @} |
sahilmgandhi | 18:6a4db94011d3 | 489 | */ |
sahilmgandhi | 18:6a4db94011d3 | 490 | |
sahilmgandhi | 18:6a4db94011d3 | 491 | /** @defgroup I2C_Exported_Functions_Group2 IO operation functions |
sahilmgandhi | 18:6a4db94011d3 | 492 | * @brief Data transfers functions |
sahilmgandhi | 18:6a4db94011d3 | 493 | * |
sahilmgandhi | 18:6a4db94011d3 | 494 | @verbatim |
sahilmgandhi | 18:6a4db94011d3 | 495 | =============================================================================== |
sahilmgandhi | 18:6a4db94011d3 | 496 | ##### IO operation functions ##### |
sahilmgandhi | 18:6a4db94011d3 | 497 | =============================================================================== |
sahilmgandhi | 18:6a4db94011d3 | 498 | [..] |
sahilmgandhi | 18:6a4db94011d3 | 499 | This subsection provides a set of functions allowing to manage the I2C data |
sahilmgandhi | 18:6a4db94011d3 | 500 | transfers. |
sahilmgandhi | 18:6a4db94011d3 | 501 | |
sahilmgandhi | 18:6a4db94011d3 | 502 | (#) There are two modes of transfer: |
sahilmgandhi | 18:6a4db94011d3 | 503 | (++) Blocking mode : The communication is performed in the polling mode. |
sahilmgandhi | 18:6a4db94011d3 | 504 | The status of all data processing is returned by the same function |
sahilmgandhi | 18:6a4db94011d3 | 505 | after finishing transfer. |
sahilmgandhi | 18:6a4db94011d3 | 506 | (++) No-Blocking mode : The communication is performed using Interrupts |
sahilmgandhi | 18:6a4db94011d3 | 507 | or DMA. These functions return the status of the transfer startup. |
sahilmgandhi | 18:6a4db94011d3 | 508 | The end of the data processing will be indicated through the |
sahilmgandhi | 18:6a4db94011d3 | 509 | dedicated I2C IRQ when using Interrupt mode or the DMA IRQ when |
sahilmgandhi | 18:6a4db94011d3 | 510 | using DMA mode. |
sahilmgandhi | 18:6a4db94011d3 | 511 | |
sahilmgandhi | 18:6a4db94011d3 | 512 | (#) Blocking mode functions are : |
sahilmgandhi | 18:6a4db94011d3 | 513 | (++) HAL_I2C_Master_Transmit() |
sahilmgandhi | 18:6a4db94011d3 | 514 | (++) HAL_I2C_Master_Receive() |
sahilmgandhi | 18:6a4db94011d3 | 515 | (++) HAL_I2C_Slave_Transmit() |
sahilmgandhi | 18:6a4db94011d3 | 516 | (++) HAL_I2C_Slave_Receive() |
sahilmgandhi | 18:6a4db94011d3 | 517 | (++) HAL_I2C_Mem_Write() |
sahilmgandhi | 18:6a4db94011d3 | 518 | (++) HAL_I2C_Mem_Read() |
sahilmgandhi | 18:6a4db94011d3 | 519 | (++) HAL_I2C_IsDeviceReady() |
sahilmgandhi | 18:6a4db94011d3 | 520 | |
sahilmgandhi | 18:6a4db94011d3 | 521 | (#) No-Blocking mode functions with Interrupt are : |
sahilmgandhi | 18:6a4db94011d3 | 522 | (++) HAL_I2C_Master_Transmit_IT() |
sahilmgandhi | 18:6a4db94011d3 | 523 | (++) HAL_I2C_Master_Receive_IT() |
sahilmgandhi | 18:6a4db94011d3 | 524 | (++) HAL_I2C_Slave_Transmit_IT() |
sahilmgandhi | 18:6a4db94011d3 | 525 | (++) HAL_I2C_Slave_Receive_IT() |
sahilmgandhi | 18:6a4db94011d3 | 526 | (++) HAL_I2C_Master_Sequential_Transmit_IT() |
sahilmgandhi | 18:6a4db94011d3 | 527 | (++) HAL_I2C_Master_Sequential_Receive_IT() |
sahilmgandhi | 18:6a4db94011d3 | 528 | (++) HAL_I2C_Slave_Sequential_Transmit_IT() |
sahilmgandhi | 18:6a4db94011d3 | 529 | (++) HAL_I2C_Slave_Sequential_Receive_IT() |
sahilmgandhi | 18:6a4db94011d3 | 530 | (++) HAL_I2C_Mem_Write_IT() |
sahilmgandhi | 18:6a4db94011d3 | 531 | (++) HAL_I2C_Mem_Read_IT() |
sahilmgandhi | 18:6a4db94011d3 | 532 | |
sahilmgandhi | 18:6a4db94011d3 | 533 | (#) No-Blocking mode functions with DMA are : |
sahilmgandhi | 18:6a4db94011d3 | 534 | (++) HAL_I2C_Master_Transmit_DMA() |
sahilmgandhi | 18:6a4db94011d3 | 535 | (++) HAL_I2C_Master_Receive_DMA() |
sahilmgandhi | 18:6a4db94011d3 | 536 | (++) HAL_I2C_Slave_Transmit_DMA() |
sahilmgandhi | 18:6a4db94011d3 | 537 | (++) HAL_I2C_Slave_Receive_DMA() |
sahilmgandhi | 18:6a4db94011d3 | 538 | (++) HAL_I2C_Mem_Write_DMA() |
sahilmgandhi | 18:6a4db94011d3 | 539 | (++) HAL_I2C_Mem_Read_DMA() |
sahilmgandhi | 18:6a4db94011d3 | 540 | |
sahilmgandhi | 18:6a4db94011d3 | 541 | (#) A set of Transfer Complete Callbacks are provided in non Blocking mode: |
sahilmgandhi | 18:6a4db94011d3 | 542 | (++) HAL_I2C_MemTxCpltCallback() |
sahilmgandhi | 18:6a4db94011d3 | 543 | (++) HAL_I2C_MemRxCpltCallback() |
sahilmgandhi | 18:6a4db94011d3 | 544 | (++) HAL_I2C_MasterTxCpltCallback() |
sahilmgandhi | 18:6a4db94011d3 | 545 | (++) HAL_I2C_MasterRxCpltCallback() |
sahilmgandhi | 18:6a4db94011d3 | 546 | (++) HAL_I2C_SlaveTxCpltCallback() |
sahilmgandhi | 18:6a4db94011d3 | 547 | (++) HAL_I2C_SlaveRxCpltCallback() |
sahilmgandhi | 18:6a4db94011d3 | 548 | (++) HAL_I2C_ErrorCallback() |
sahilmgandhi | 18:6a4db94011d3 | 549 | (++) HAL_I2C_AbortCpltCallback() |
sahilmgandhi | 18:6a4db94011d3 | 550 | |
sahilmgandhi | 18:6a4db94011d3 | 551 | @endverbatim |
sahilmgandhi | 18:6a4db94011d3 | 552 | * @{ |
sahilmgandhi | 18:6a4db94011d3 | 553 | */ |
sahilmgandhi | 18:6a4db94011d3 | 554 | |
sahilmgandhi | 18:6a4db94011d3 | 555 | /** |
sahilmgandhi | 18:6a4db94011d3 | 556 | * @brief Transmits in master mode an amount of data in blocking mode. |
sahilmgandhi | 18:6a4db94011d3 | 557 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 558 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 559 | * @param DevAddress Target device address: The device 7 bits address value |
sahilmgandhi | 18:6a4db94011d3 | 560 | * in datasheet must be shift at right before call interface |
sahilmgandhi | 18:6a4db94011d3 | 561 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 562 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 563 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 564 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 565 | */ |
sahilmgandhi | 18:6a4db94011d3 | 566 | HAL_StatusTypeDef HAL_I2C_Master_Transmit(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout) |
sahilmgandhi | 18:6a4db94011d3 | 567 | { |
sahilmgandhi | 18:6a4db94011d3 | 568 | uint32_t tickstart = 0x00U; |
sahilmgandhi | 18:6a4db94011d3 | 569 | |
sahilmgandhi | 18:6a4db94011d3 | 570 | /* Init tickstart for timeout management*/ |
sahilmgandhi | 18:6a4db94011d3 | 571 | tickstart = HAL_GetTick(); |
sahilmgandhi | 18:6a4db94011d3 | 572 | |
sahilmgandhi | 18:6a4db94011d3 | 573 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 574 | { |
sahilmgandhi | 18:6a4db94011d3 | 575 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 576 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 577 | { |
sahilmgandhi | 18:6a4db94011d3 | 578 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 579 | } |
sahilmgandhi | 18:6a4db94011d3 | 580 | |
sahilmgandhi | 18:6a4db94011d3 | 581 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 582 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 583 | |
sahilmgandhi | 18:6a4db94011d3 | 584 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 585 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 586 | |
sahilmgandhi | 18:6a4db94011d3 | 587 | hi2c->State = HAL_I2C_STATE_BUSY_TX; |
sahilmgandhi | 18:6a4db94011d3 | 588 | hi2c->Mode = HAL_I2C_MODE_MASTER; |
sahilmgandhi | 18:6a4db94011d3 | 589 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 590 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 591 | |
sahilmgandhi | 18:6a4db94011d3 | 592 | /* Send Slave Address */ |
sahilmgandhi | 18:6a4db94011d3 | 593 | if(I2C_MasterRequestWrite(hi2c, DevAddress, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 594 | { |
sahilmgandhi | 18:6a4db94011d3 | 595 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 596 | { |
sahilmgandhi | 18:6a4db94011d3 | 597 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 598 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 599 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 600 | } |
sahilmgandhi | 18:6a4db94011d3 | 601 | else |
sahilmgandhi | 18:6a4db94011d3 | 602 | { |
sahilmgandhi | 18:6a4db94011d3 | 603 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 604 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 605 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 606 | } |
sahilmgandhi | 18:6a4db94011d3 | 607 | } |
sahilmgandhi | 18:6a4db94011d3 | 608 | |
sahilmgandhi | 18:6a4db94011d3 | 609 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 610 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 611 | |
sahilmgandhi | 18:6a4db94011d3 | 612 | while(Size > 0U) |
sahilmgandhi | 18:6a4db94011d3 | 613 | { |
sahilmgandhi | 18:6a4db94011d3 | 614 | /* Wait until TXE flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 615 | if(I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 616 | { |
sahilmgandhi | 18:6a4db94011d3 | 617 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 618 | { |
sahilmgandhi | 18:6a4db94011d3 | 619 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 620 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 621 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 622 | } |
sahilmgandhi | 18:6a4db94011d3 | 623 | else |
sahilmgandhi | 18:6a4db94011d3 | 624 | { |
sahilmgandhi | 18:6a4db94011d3 | 625 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 626 | } |
sahilmgandhi | 18:6a4db94011d3 | 627 | } |
sahilmgandhi | 18:6a4db94011d3 | 628 | |
sahilmgandhi | 18:6a4db94011d3 | 629 | /* Write data to DR */ |
sahilmgandhi | 18:6a4db94011d3 | 630 | hi2c->Instance->DR = (*pData++); |
sahilmgandhi | 18:6a4db94011d3 | 631 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 632 | |
sahilmgandhi | 18:6a4db94011d3 | 633 | if((__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BTF) == SET) && (Size != 0U)) |
sahilmgandhi | 18:6a4db94011d3 | 634 | { |
sahilmgandhi | 18:6a4db94011d3 | 635 | /* Write data to DR */ |
sahilmgandhi | 18:6a4db94011d3 | 636 | hi2c->Instance->DR = (*pData++); |
sahilmgandhi | 18:6a4db94011d3 | 637 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 638 | } |
sahilmgandhi | 18:6a4db94011d3 | 639 | |
sahilmgandhi | 18:6a4db94011d3 | 640 | /* Wait until BTF flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 641 | if(I2C_WaitOnBTFFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 642 | { |
sahilmgandhi | 18:6a4db94011d3 | 643 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 644 | { |
sahilmgandhi | 18:6a4db94011d3 | 645 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 646 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 647 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 648 | } |
sahilmgandhi | 18:6a4db94011d3 | 649 | else |
sahilmgandhi | 18:6a4db94011d3 | 650 | { |
sahilmgandhi | 18:6a4db94011d3 | 651 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 652 | } |
sahilmgandhi | 18:6a4db94011d3 | 653 | } |
sahilmgandhi | 18:6a4db94011d3 | 654 | } |
sahilmgandhi | 18:6a4db94011d3 | 655 | |
sahilmgandhi | 18:6a4db94011d3 | 656 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 657 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 658 | |
sahilmgandhi | 18:6a4db94011d3 | 659 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 660 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 661 | |
sahilmgandhi | 18:6a4db94011d3 | 662 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 663 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 664 | |
sahilmgandhi | 18:6a4db94011d3 | 665 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 666 | } |
sahilmgandhi | 18:6a4db94011d3 | 667 | else |
sahilmgandhi | 18:6a4db94011d3 | 668 | { |
sahilmgandhi | 18:6a4db94011d3 | 669 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 670 | } |
sahilmgandhi | 18:6a4db94011d3 | 671 | } |
sahilmgandhi | 18:6a4db94011d3 | 672 | |
sahilmgandhi | 18:6a4db94011d3 | 673 | /** |
sahilmgandhi | 18:6a4db94011d3 | 674 | * @brief Receives in master mode an amount of data in blocking mode. |
sahilmgandhi | 18:6a4db94011d3 | 675 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 676 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 677 | * @param DevAddress Target device address: The device 7 bits address value |
sahilmgandhi | 18:6a4db94011d3 | 678 | * in datasheet must be shift at right before call interface |
sahilmgandhi | 18:6a4db94011d3 | 679 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 680 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 681 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 682 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 683 | */ |
sahilmgandhi | 18:6a4db94011d3 | 684 | HAL_StatusTypeDef HAL_I2C_Master_Receive(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout) |
sahilmgandhi | 18:6a4db94011d3 | 685 | { |
sahilmgandhi | 18:6a4db94011d3 | 686 | uint32_t tickstart = 0x00U; |
sahilmgandhi | 18:6a4db94011d3 | 687 | |
sahilmgandhi | 18:6a4db94011d3 | 688 | /* Init tickstart for timeout management*/ |
sahilmgandhi | 18:6a4db94011d3 | 689 | tickstart = HAL_GetTick(); |
sahilmgandhi | 18:6a4db94011d3 | 690 | |
sahilmgandhi | 18:6a4db94011d3 | 691 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 692 | { |
sahilmgandhi | 18:6a4db94011d3 | 693 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 694 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 695 | { |
sahilmgandhi | 18:6a4db94011d3 | 696 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 697 | } |
sahilmgandhi | 18:6a4db94011d3 | 698 | |
sahilmgandhi | 18:6a4db94011d3 | 699 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 700 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 701 | |
sahilmgandhi | 18:6a4db94011d3 | 702 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 703 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 704 | |
sahilmgandhi | 18:6a4db94011d3 | 705 | hi2c->State = HAL_I2C_STATE_BUSY_RX; |
sahilmgandhi | 18:6a4db94011d3 | 706 | hi2c->Mode = HAL_I2C_MODE_MASTER; |
sahilmgandhi | 18:6a4db94011d3 | 707 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 708 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 709 | |
sahilmgandhi | 18:6a4db94011d3 | 710 | /* Send Slave Address */ |
sahilmgandhi | 18:6a4db94011d3 | 711 | if(I2C_MasterRequestRead(hi2c, DevAddress, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 712 | { |
sahilmgandhi | 18:6a4db94011d3 | 713 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 714 | { |
sahilmgandhi | 18:6a4db94011d3 | 715 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 716 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 717 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 718 | } |
sahilmgandhi | 18:6a4db94011d3 | 719 | else |
sahilmgandhi | 18:6a4db94011d3 | 720 | { |
sahilmgandhi | 18:6a4db94011d3 | 721 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 722 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 723 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 724 | } |
sahilmgandhi | 18:6a4db94011d3 | 725 | } |
sahilmgandhi | 18:6a4db94011d3 | 726 | |
sahilmgandhi | 18:6a4db94011d3 | 727 | if(Size == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 728 | { |
sahilmgandhi | 18:6a4db94011d3 | 729 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 730 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 731 | |
sahilmgandhi | 18:6a4db94011d3 | 732 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 733 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 734 | } |
sahilmgandhi | 18:6a4db94011d3 | 735 | else if(Size == 1U) |
sahilmgandhi | 18:6a4db94011d3 | 736 | { |
sahilmgandhi | 18:6a4db94011d3 | 737 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 738 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 739 | |
sahilmgandhi | 18:6a4db94011d3 | 740 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 741 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 742 | |
sahilmgandhi | 18:6a4db94011d3 | 743 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 744 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 745 | } |
sahilmgandhi | 18:6a4db94011d3 | 746 | else if(Size == 2U) |
sahilmgandhi | 18:6a4db94011d3 | 747 | { |
sahilmgandhi | 18:6a4db94011d3 | 748 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 749 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 750 | |
sahilmgandhi | 18:6a4db94011d3 | 751 | /* Enable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 752 | hi2c->Instance->CR1 |= I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 753 | |
sahilmgandhi | 18:6a4db94011d3 | 754 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 755 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 756 | } |
sahilmgandhi | 18:6a4db94011d3 | 757 | else |
sahilmgandhi | 18:6a4db94011d3 | 758 | { |
sahilmgandhi | 18:6a4db94011d3 | 759 | /* Enable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 760 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 761 | |
sahilmgandhi | 18:6a4db94011d3 | 762 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 763 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 764 | } |
sahilmgandhi | 18:6a4db94011d3 | 765 | |
sahilmgandhi | 18:6a4db94011d3 | 766 | while(Size > 0U) |
sahilmgandhi | 18:6a4db94011d3 | 767 | { |
sahilmgandhi | 18:6a4db94011d3 | 768 | if(Size <= 3U) |
sahilmgandhi | 18:6a4db94011d3 | 769 | { |
sahilmgandhi | 18:6a4db94011d3 | 770 | /* One byte */ |
sahilmgandhi | 18:6a4db94011d3 | 771 | if(Size == 1U) |
sahilmgandhi | 18:6a4db94011d3 | 772 | { |
sahilmgandhi | 18:6a4db94011d3 | 773 | /* Wait until RXNE flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 774 | if(I2C_WaitOnRXNEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 775 | { |
sahilmgandhi | 18:6a4db94011d3 | 776 | if(hi2c->ErrorCode == HAL_I2C_ERROR_TIMEOUT) |
sahilmgandhi | 18:6a4db94011d3 | 777 | { |
sahilmgandhi | 18:6a4db94011d3 | 778 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 779 | } |
sahilmgandhi | 18:6a4db94011d3 | 780 | else |
sahilmgandhi | 18:6a4db94011d3 | 781 | { |
sahilmgandhi | 18:6a4db94011d3 | 782 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 783 | } |
sahilmgandhi | 18:6a4db94011d3 | 784 | } |
sahilmgandhi | 18:6a4db94011d3 | 785 | |
sahilmgandhi | 18:6a4db94011d3 | 786 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 787 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 788 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 789 | } |
sahilmgandhi | 18:6a4db94011d3 | 790 | /* Two bytes */ |
sahilmgandhi | 18:6a4db94011d3 | 791 | else if(Size == 2U) |
sahilmgandhi | 18:6a4db94011d3 | 792 | { |
sahilmgandhi | 18:6a4db94011d3 | 793 | /* Wait until BTF flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 794 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BTF, RESET, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 795 | { |
sahilmgandhi | 18:6a4db94011d3 | 796 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 797 | } |
sahilmgandhi | 18:6a4db94011d3 | 798 | |
sahilmgandhi | 18:6a4db94011d3 | 799 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 800 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 801 | |
sahilmgandhi | 18:6a4db94011d3 | 802 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 803 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 804 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 805 | |
sahilmgandhi | 18:6a4db94011d3 | 806 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 807 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 808 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 809 | } |
sahilmgandhi | 18:6a4db94011d3 | 810 | /* 3 Last bytes */ |
sahilmgandhi | 18:6a4db94011d3 | 811 | else |
sahilmgandhi | 18:6a4db94011d3 | 812 | { |
sahilmgandhi | 18:6a4db94011d3 | 813 | /* Wait until BTF flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 814 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BTF, RESET, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 815 | { |
sahilmgandhi | 18:6a4db94011d3 | 816 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 817 | } |
sahilmgandhi | 18:6a4db94011d3 | 818 | |
sahilmgandhi | 18:6a4db94011d3 | 819 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 820 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 821 | |
sahilmgandhi | 18:6a4db94011d3 | 822 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 823 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 824 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 825 | |
sahilmgandhi | 18:6a4db94011d3 | 826 | /* Wait until BTF flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 827 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BTF, RESET, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 828 | { |
sahilmgandhi | 18:6a4db94011d3 | 829 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 830 | } |
sahilmgandhi | 18:6a4db94011d3 | 831 | |
sahilmgandhi | 18:6a4db94011d3 | 832 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 833 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 834 | |
sahilmgandhi | 18:6a4db94011d3 | 835 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 836 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 837 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 838 | |
sahilmgandhi | 18:6a4db94011d3 | 839 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 840 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 841 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 842 | } |
sahilmgandhi | 18:6a4db94011d3 | 843 | } |
sahilmgandhi | 18:6a4db94011d3 | 844 | else |
sahilmgandhi | 18:6a4db94011d3 | 845 | { |
sahilmgandhi | 18:6a4db94011d3 | 846 | /* Wait until RXNE flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 847 | if(I2C_WaitOnRXNEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 848 | { |
sahilmgandhi | 18:6a4db94011d3 | 849 | if(hi2c->ErrorCode == HAL_I2C_ERROR_TIMEOUT) |
sahilmgandhi | 18:6a4db94011d3 | 850 | { |
sahilmgandhi | 18:6a4db94011d3 | 851 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 852 | } |
sahilmgandhi | 18:6a4db94011d3 | 853 | else |
sahilmgandhi | 18:6a4db94011d3 | 854 | { |
sahilmgandhi | 18:6a4db94011d3 | 855 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 856 | } |
sahilmgandhi | 18:6a4db94011d3 | 857 | } |
sahilmgandhi | 18:6a4db94011d3 | 858 | |
sahilmgandhi | 18:6a4db94011d3 | 859 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 860 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 861 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 862 | |
sahilmgandhi | 18:6a4db94011d3 | 863 | if(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BTF) == SET) |
sahilmgandhi | 18:6a4db94011d3 | 864 | { |
sahilmgandhi | 18:6a4db94011d3 | 865 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 866 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 867 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 868 | } |
sahilmgandhi | 18:6a4db94011d3 | 869 | } |
sahilmgandhi | 18:6a4db94011d3 | 870 | } |
sahilmgandhi | 18:6a4db94011d3 | 871 | |
sahilmgandhi | 18:6a4db94011d3 | 872 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 873 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 874 | |
sahilmgandhi | 18:6a4db94011d3 | 875 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 876 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 877 | |
sahilmgandhi | 18:6a4db94011d3 | 878 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 879 | } |
sahilmgandhi | 18:6a4db94011d3 | 880 | else |
sahilmgandhi | 18:6a4db94011d3 | 881 | { |
sahilmgandhi | 18:6a4db94011d3 | 882 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 883 | } |
sahilmgandhi | 18:6a4db94011d3 | 884 | } |
sahilmgandhi | 18:6a4db94011d3 | 885 | |
sahilmgandhi | 18:6a4db94011d3 | 886 | /** |
sahilmgandhi | 18:6a4db94011d3 | 887 | * @brief Transmits in slave mode an amount of data in blocking mode. |
sahilmgandhi | 18:6a4db94011d3 | 888 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 889 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 890 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 891 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 892 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 893 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 894 | */ |
sahilmgandhi | 18:6a4db94011d3 | 895 | HAL_StatusTypeDef HAL_I2C_Slave_Transmit(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout) |
sahilmgandhi | 18:6a4db94011d3 | 896 | { |
sahilmgandhi | 18:6a4db94011d3 | 897 | uint32_t tickstart = 0x00U; |
sahilmgandhi | 18:6a4db94011d3 | 898 | |
sahilmgandhi | 18:6a4db94011d3 | 899 | /* Init tickstart for timeout management*/ |
sahilmgandhi | 18:6a4db94011d3 | 900 | tickstart = HAL_GetTick(); |
sahilmgandhi | 18:6a4db94011d3 | 901 | |
sahilmgandhi | 18:6a4db94011d3 | 902 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 903 | { |
sahilmgandhi | 18:6a4db94011d3 | 904 | if((pData == NULL) || (Size == 0U)) |
sahilmgandhi | 18:6a4db94011d3 | 905 | { |
sahilmgandhi | 18:6a4db94011d3 | 906 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 907 | } |
sahilmgandhi | 18:6a4db94011d3 | 908 | |
sahilmgandhi | 18:6a4db94011d3 | 909 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 910 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 911 | { |
sahilmgandhi | 18:6a4db94011d3 | 912 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 913 | } |
sahilmgandhi | 18:6a4db94011d3 | 914 | |
sahilmgandhi | 18:6a4db94011d3 | 915 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 916 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 917 | |
sahilmgandhi | 18:6a4db94011d3 | 918 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 919 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 920 | |
sahilmgandhi | 18:6a4db94011d3 | 921 | hi2c->State = HAL_I2C_STATE_BUSY_TX; |
sahilmgandhi | 18:6a4db94011d3 | 922 | hi2c->Mode = HAL_I2C_MODE_SLAVE; |
sahilmgandhi | 18:6a4db94011d3 | 923 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 924 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 925 | |
sahilmgandhi | 18:6a4db94011d3 | 926 | /* Enable Address Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 927 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 928 | |
sahilmgandhi | 18:6a4db94011d3 | 929 | /* Wait until ADDR flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 930 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, RESET, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 931 | { |
sahilmgandhi | 18:6a4db94011d3 | 932 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 933 | } |
sahilmgandhi | 18:6a4db94011d3 | 934 | |
sahilmgandhi | 18:6a4db94011d3 | 935 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 936 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 937 | |
sahilmgandhi | 18:6a4db94011d3 | 938 | /* If 10bit addressing mode is selected */ |
sahilmgandhi | 18:6a4db94011d3 | 939 | if(hi2c->Init.AddressingMode == I2C_ADDRESSINGMODE_10BIT) |
sahilmgandhi | 18:6a4db94011d3 | 940 | { |
sahilmgandhi | 18:6a4db94011d3 | 941 | /* Wait until ADDR flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 942 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, RESET, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 943 | { |
sahilmgandhi | 18:6a4db94011d3 | 944 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 945 | } |
sahilmgandhi | 18:6a4db94011d3 | 946 | |
sahilmgandhi | 18:6a4db94011d3 | 947 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 948 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 949 | } |
sahilmgandhi | 18:6a4db94011d3 | 950 | |
sahilmgandhi | 18:6a4db94011d3 | 951 | while(Size > 0U) |
sahilmgandhi | 18:6a4db94011d3 | 952 | { |
sahilmgandhi | 18:6a4db94011d3 | 953 | /* Wait until TXE flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 954 | if(I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 955 | { |
sahilmgandhi | 18:6a4db94011d3 | 956 | /* Disable Address Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 957 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 958 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 959 | { |
sahilmgandhi | 18:6a4db94011d3 | 960 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 961 | } |
sahilmgandhi | 18:6a4db94011d3 | 962 | else |
sahilmgandhi | 18:6a4db94011d3 | 963 | { |
sahilmgandhi | 18:6a4db94011d3 | 964 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 965 | } |
sahilmgandhi | 18:6a4db94011d3 | 966 | } |
sahilmgandhi | 18:6a4db94011d3 | 967 | |
sahilmgandhi | 18:6a4db94011d3 | 968 | /* Write data to DR */ |
sahilmgandhi | 18:6a4db94011d3 | 969 | hi2c->Instance->DR = (*pData++); |
sahilmgandhi | 18:6a4db94011d3 | 970 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 971 | |
sahilmgandhi | 18:6a4db94011d3 | 972 | if((__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BTF) == SET) && (Size != 0U)) |
sahilmgandhi | 18:6a4db94011d3 | 973 | { |
sahilmgandhi | 18:6a4db94011d3 | 974 | /* Write data to DR */ |
sahilmgandhi | 18:6a4db94011d3 | 975 | hi2c->Instance->DR = (*pData++); |
sahilmgandhi | 18:6a4db94011d3 | 976 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 977 | } |
sahilmgandhi | 18:6a4db94011d3 | 978 | } |
sahilmgandhi | 18:6a4db94011d3 | 979 | |
sahilmgandhi | 18:6a4db94011d3 | 980 | /* Wait until AF flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 981 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_AF, RESET, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 982 | { |
sahilmgandhi | 18:6a4db94011d3 | 983 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 984 | } |
sahilmgandhi | 18:6a4db94011d3 | 985 | |
sahilmgandhi | 18:6a4db94011d3 | 986 | /* Clear AF flag */ |
sahilmgandhi | 18:6a4db94011d3 | 987 | __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); |
sahilmgandhi | 18:6a4db94011d3 | 988 | |
sahilmgandhi | 18:6a4db94011d3 | 989 | /* Disable Address Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 990 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 991 | |
sahilmgandhi | 18:6a4db94011d3 | 992 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 993 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 994 | |
sahilmgandhi | 18:6a4db94011d3 | 995 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 996 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 997 | |
sahilmgandhi | 18:6a4db94011d3 | 998 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 999 | } |
sahilmgandhi | 18:6a4db94011d3 | 1000 | else |
sahilmgandhi | 18:6a4db94011d3 | 1001 | { |
sahilmgandhi | 18:6a4db94011d3 | 1002 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 1003 | } |
sahilmgandhi | 18:6a4db94011d3 | 1004 | } |
sahilmgandhi | 18:6a4db94011d3 | 1005 | |
sahilmgandhi | 18:6a4db94011d3 | 1006 | /** |
sahilmgandhi | 18:6a4db94011d3 | 1007 | * @brief Receive in slave mode an amount of data in blocking mode |
sahilmgandhi | 18:6a4db94011d3 | 1008 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 1009 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 1010 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 1011 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 1012 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 1013 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 1014 | */ |
sahilmgandhi | 18:6a4db94011d3 | 1015 | HAL_StatusTypeDef HAL_I2C_Slave_Receive(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout) |
sahilmgandhi | 18:6a4db94011d3 | 1016 | { |
sahilmgandhi | 18:6a4db94011d3 | 1017 | uint32_t tickstart = 0x00U; |
sahilmgandhi | 18:6a4db94011d3 | 1018 | |
sahilmgandhi | 18:6a4db94011d3 | 1019 | /* Init tickstart for timeout management*/ |
sahilmgandhi | 18:6a4db94011d3 | 1020 | tickstart = HAL_GetTick(); |
sahilmgandhi | 18:6a4db94011d3 | 1021 | |
sahilmgandhi | 18:6a4db94011d3 | 1022 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 1023 | { |
sahilmgandhi | 18:6a4db94011d3 | 1024 | if((pData == NULL) || (Size == 0U)) |
sahilmgandhi | 18:6a4db94011d3 | 1025 | { |
sahilmgandhi | 18:6a4db94011d3 | 1026 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 1027 | } |
sahilmgandhi | 18:6a4db94011d3 | 1028 | |
sahilmgandhi | 18:6a4db94011d3 | 1029 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 1030 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 1031 | { |
sahilmgandhi | 18:6a4db94011d3 | 1032 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 1033 | } |
sahilmgandhi | 18:6a4db94011d3 | 1034 | |
sahilmgandhi | 18:6a4db94011d3 | 1035 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 1036 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1037 | |
sahilmgandhi | 18:6a4db94011d3 | 1038 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 1039 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 1040 | |
sahilmgandhi | 18:6a4db94011d3 | 1041 | hi2c->State = HAL_I2C_STATE_BUSY_RX; |
sahilmgandhi | 18:6a4db94011d3 | 1042 | hi2c->Mode = HAL_I2C_MODE_SLAVE; |
sahilmgandhi | 18:6a4db94011d3 | 1043 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1044 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 1045 | |
sahilmgandhi | 18:6a4db94011d3 | 1046 | /* Enable Address Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 1047 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 1048 | |
sahilmgandhi | 18:6a4db94011d3 | 1049 | /* Wait until ADDR flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 1050 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, RESET, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 1051 | { |
sahilmgandhi | 18:6a4db94011d3 | 1052 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 1053 | } |
sahilmgandhi | 18:6a4db94011d3 | 1054 | |
sahilmgandhi | 18:6a4db94011d3 | 1055 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 1056 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1057 | |
sahilmgandhi | 18:6a4db94011d3 | 1058 | while(Size > 0U) |
sahilmgandhi | 18:6a4db94011d3 | 1059 | { |
sahilmgandhi | 18:6a4db94011d3 | 1060 | /* Wait until RXNE flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 1061 | if(I2C_WaitOnRXNEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 1062 | { |
sahilmgandhi | 18:6a4db94011d3 | 1063 | /* Disable Address Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 1064 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 1065 | if(hi2c->ErrorCode == HAL_I2C_ERROR_TIMEOUT) |
sahilmgandhi | 18:6a4db94011d3 | 1066 | { |
sahilmgandhi | 18:6a4db94011d3 | 1067 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 1068 | } |
sahilmgandhi | 18:6a4db94011d3 | 1069 | else |
sahilmgandhi | 18:6a4db94011d3 | 1070 | { |
sahilmgandhi | 18:6a4db94011d3 | 1071 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 1072 | } |
sahilmgandhi | 18:6a4db94011d3 | 1073 | } |
sahilmgandhi | 18:6a4db94011d3 | 1074 | |
sahilmgandhi | 18:6a4db94011d3 | 1075 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 1076 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 1077 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 1078 | |
sahilmgandhi | 18:6a4db94011d3 | 1079 | if((__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BTF) == SET) && (Size != 0U)) |
sahilmgandhi | 18:6a4db94011d3 | 1080 | { |
sahilmgandhi | 18:6a4db94011d3 | 1081 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 1082 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 1083 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 1084 | } |
sahilmgandhi | 18:6a4db94011d3 | 1085 | } |
sahilmgandhi | 18:6a4db94011d3 | 1086 | |
sahilmgandhi | 18:6a4db94011d3 | 1087 | /* Wait until STOP flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 1088 | if(I2C_WaitOnSTOPFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 1089 | { |
sahilmgandhi | 18:6a4db94011d3 | 1090 | /* Disable Address Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 1091 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 1092 | |
sahilmgandhi | 18:6a4db94011d3 | 1093 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 1094 | { |
sahilmgandhi | 18:6a4db94011d3 | 1095 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 1096 | } |
sahilmgandhi | 18:6a4db94011d3 | 1097 | else |
sahilmgandhi | 18:6a4db94011d3 | 1098 | { |
sahilmgandhi | 18:6a4db94011d3 | 1099 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 1100 | } |
sahilmgandhi | 18:6a4db94011d3 | 1101 | } |
sahilmgandhi | 18:6a4db94011d3 | 1102 | |
sahilmgandhi | 18:6a4db94011d3 | 1103 | /* Clear STOP flag */ |
sahilmgandhi | 18:6a4db94011d3 | 1104 | __HAL_I2C_CLEAR_STOPFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1105 | |
sahilmgandhi | 18:6a4db94011d3 | 1106 | /* Disable Address Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 1107 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 1108 | |
sahilmgandhi | 18:6a4db94011d3 | 1109 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 1110 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1111 | |
sahilmgandhi | 18:6a4db94011d3 | 1112 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1113 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1114 | |
sahilmgandhi | 18:6a4db94011d3 | 1115 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 1116 | } |
sahilmgandhi | 18:6a4db94011d3 | 1117 | else |
sahilmgandhi | 18:6a4db94011d3 | 1118 | { |
sahilmgandhi | 18:6a4db94011d3 | 1119 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 1120 | } |
sahilmgandhi | 18:6a4db94011d3 | 1121 | } |
sahilmgandhi | 18:6a4db94011d3 | 1122 | |
sahilmgandhi | 18:6a4db94011d3 | 1123 | /** |
sahilmgandhi | 18:6a4db94011d3 | 1124 | * @brief Transmit in master mode an amount of data in no-blocking mode with Interrupt |
sahilmgandhi | 18:6a4db94011d3 | 1125 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 1126 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 1127 | * @param DevAddress Target device address: The device 7 bits address value |
sahilmgandhi | 18:6a4db94011d3 | 1128 | * in datasheet must be shift at right before call interface |
sahilmgandhi | 18:6a4db94011d3 | 1129 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 1130 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 1131 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 1132 | */ |
sahilmgandhi | 18:6a4db94011d3 | 1133 | HAL_StatusTypeDef HAL_I2C_Master_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) |
sahilmgandhi | 18:6a4db94011d3 | 1134 | { |
sahilmgandhi | 18:6a4db94011d3 | 1135 | __IO uint32_t count = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 1136 | |
sahilmgandhi | 18:6a4db94011d3 | 1137 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 1138 | { |
sahilmgandhi | 18:6a4db94011d3 | 1139 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 1140 | count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 1141 | do |
sahilmgandhi | 18:6a4db94011d3 | 1142 | { |
sahilmgandhi | 18:6a4db94011d3 | 1143 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 1144 | { |
sahilmgandhi | 18:6a4db94011d3 | 1145 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1146 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 1147 | |
sahilmgandhi | 18:6a4db94011d3 | 1148 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1149 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1150 | |
sahilmgandhi | 18:6a4db94011d3 | 1151 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 1152 | } |
sahilmgandhi | 18:6a4db94011d3 | 1153 | } |
sahilmgandhi | 18:6a4db94011d3 | 1154 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); |
sahilmgandhi | 18:6a4db94011d3 | 1155 | |
sahilmgandhi | 18:6a4db94011d3 | 1156 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 1157 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1158 | |
sahilmgandhi | 18:6a4db94011d3 | 1159 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 1160 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 1161 | |
sahilmgandhi | 18:6a4db94011d3 | 1162 | hi2c->State = HAL_I2C_STATE_BUSY_TX; |
sahilmgandhi | 18:6a4db94011d3 | 1163 | hi2c->Mode = HAL_I2C_MODE_MASTER; |
sahilmgandhi | 18:6a4db94011d3 | 1164 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1165 | |
sahilmgandhi | 18:6a4db94011d3 | 1166 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 1167 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1168 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1169 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 1170 | hi2c->Devaddress = DevAddress; |
sahilmgandhi | 18:6a4db94011d3 | 1171 | |
sahilmgandhi | 18:6a4db94011d3 | 1172 | /* Generate Start */ |
sahilmgandhi | 18:6a4db94011d3 | 1173 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 1174 | |
sahilmgandhi | 18:6a4db94011d3 | 1175 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1176 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1177 | |
sahilmgandhi | 18:6a4db94011d3 | 1178 | /* Note : The I2C interrupts must be enabled after unlocking current process |
sahilmgandhi | 18:6a4db94011d3 | 1179 | to avoid the risk of I2C interrupt handle execution before current |
sahilmgandhi | 18:6a4db94011d3 | 1180 | process unlock */ |
sahilmgandhi | 18:6a4db94011d3 | 1181 | /* Enable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 1182 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 1183 | |
sahilmgandhi | 18:6a4db94011d3 | 1184 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 1185 | } |
sahilmgandhi | 18:6a4db94011d3 | 1186 | else |
sahilmgandhi | 18:6a4db94011d3 | 1187 | { |
sahilmgandhi | 18:6a4db94011d3 | 1188 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 1189 | } |
sahilmgandhi | 18:6a4db94011d3 | 1190 | } |
sahilmgandhi | 18:6a4db94011d3 | 1191 | |
sahilmgandhi | 18:6a4db94011d3 | 1192 | /** |
sahilmgandhi | 18:6a4db94011d3 | 1193 | * @brief Receive in master mode an amount of data in no-blocking mode with Interrupt |
sahilmgandhi | 18:6a4db94011d3 | 1194 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 1195 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 1196 | * @param DevAddress Target device address: The device 7 bits address value |
sahilmgandhi | 18:6a4db94011d3 | 1197 | * in datasheet must be shift at right before call interface |
sahilmgandhi | 18:6a4db94011d3 | 1198 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 1199 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 1200 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 1201 | */ |
sahilmgandhi | 18:6a4db94011d3 | 1202 | HAL_StatusTypeDef HAL_I2C_Master_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) |
sahilmgandhi | 18:6a4db94011d3 | 1203 | { |
sahilmgandhi | 18:6a4db94011d3 | 1204 | __IO uint32_t count = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 1205 | |
sahilmgandhi | 18:6a4db94011d3 | 1206 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 1207 | { |
sahilmgandhi | 18:6a4db94011d3 | 1208 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 1209 | count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 1210 | do |
sahilmgandhi | 18:6a4db94011d3 | 1211 | { |
sahilmgandhi | 18:6a4db94011d3 | 1212 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 1213 | { |
sahilmgandhi | 18:6a4db94011d3 | 1214 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1215 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 1216 | |
sahilmgandhi | 18:6a4db94011d3 | 1217 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1218 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1219 | |
sahilmgandhi | 18:6a4db94011d3 | 1220 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 1221 | } |
sahilmgandhi | 18:6a4db94011d3 | 1222 | } |
sahilmgandhi | 18:6a4db94011d3 | 1223 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); |
sahilmgandhi | 18:6a4db94011d3 | 1224 | |
sahilmgandhi | 18:6a4db94011d3 | 1225 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 1226 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1227 | |
sahilmgandhi | 18:6a4db94011d3 | 1228 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 1229 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 1230 | |
sahilmgandhi | 18:6a4db94011d3 | 1231 | hi2c->State = HAL_I2C_STATE_BUSY_RX; |
sahilmgandhi | 18:6a4db94011d3 | 1232 | hi2c->Mode = HAL_I2C_MODE_MASTER; |
sahilmgandhi | 18:6a4db94011d3 | 1233 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1234 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 1235 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1236 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1237 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 1238 | hi2c->Devaddress = DevAddress; |
sahilmgandhi | 18:6a4db94011d3 | 1239 | |
sahilmgandhi | 18:6a4db94011d3 | 1240 | /* Enable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 1241 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 1242 | |
sahilmgandhi | 18:6a4db94011d3 | 1243 | /* Generate Start */ |
sahilmgandhi | 18:6a4db94011d3 | 1244 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 1245 | |
sahilmgandhi | 18:6a4db94011d3 | 1246 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1247 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1248 | |
sahilmgandhi | 18:6a4db94011d3 | 1249 | /* Note : The I2C interrupts must be enabled after unlocking current process |
sahilmgandhi | 18:6a4db94011d3 | 1250 | to avoid the risk of I2C interrupt handle execution before current |
sahilmgandhi | 18:6a4db94011d3 | 1251 | process unlock */ |
sahilmgandhi | 18:6a4db94011d3 | 1252 | |
sahilmgandhi | 18:6a4db94011d3 | 1253 | /* Enable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 1254 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 1255 | |
sahilmgandhi | 18:6a4db94011d3 | 1256 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 1257 | } |
sahilmgandhi | 18:6a4db94011d3 | 1258 | else |
sahilmgandhi | 18:6a4db94011d3 | 1259 | { |
sahilmgandhi | 18:6a4db94011d3 | 1260 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 1261 | } |
sahilmgandhi | 18:6a4db94011d3 | 1262 | } |
sahilmgandhi | 18:6a4db94011d3 | 1263 | |
sahilmgandhi | 18:6a4db94011d3 | 1264 | /** |
sahilmgandhi | 18:6a4db94011d3 | 1265 | * @brief Sequential transmit in master mode an amount of data in no-blocking mode with Interrupt |
sahilmgandhi | 18:6a4db94011d3 | 1266 | * @note This interface allow to manage repeated start condition when a direction change during transfer |
sahilmgandhi | 18:6a4db94011d3 | 1267 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 1268 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 1269 | * @param DevAddress Target device address: The device 7 bits address value |
sahilmgandhi | 18:6a4db94011d3 | 1270 | * in datasheet must be shift at right before call interface |
sahilmgandhi | 18:6a4db94011d3 | 1271 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 1272 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 1273 | * @param XferOptions Options of Transfer, value of @ref I2C_XferOptions_definition |
sahilmgandhi | 18:6a4db94011d3 | 1274 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 1275 | */ |
sahilmgandhi | 18:6a4db94011d3 | 1276 | HAL_StatusTypeDef HAL_I2C_Master_Sequential_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions) |
sahilmgandhi | 18:6a4db94011d3 | 1277 | { |
sahilmgandhi | 18:6a4db94011d3 | 1278 | uint32_t Prev_State = 0x00U; |
sahilmgandhi | 18:6a4db94011d3 | 1279 | __IO uint32_t count = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 1280 | |
sahilmgandhi | 18:6a4db94011d3 | 1281 | /* Check the parameters */ |
sahilmgandhi | 18:6a4db94011d3 | 1282 | assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); |
sahilmgandhi | 18:6a4db94011d3 | 1283 | |
sahilmgandhi | 18:6a4db94011d3 | 1284 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 1285 | { |
sahilmgandhi | 18:6a4db94011d3 | 1286 | /* Check Busy Flag only if FIRST call of Master interface */ |
sahilmgandhi | 18:6a4db94011d3 | 1287 | if((XferOptions == I2C_FIRST_AND_LAST_FRAME) || (XferOptions == I2C_FIRST_FRAME)) |
sahilmgandhi | 18:6a4db94011d3 | 1288 | { |
sahilmgandhi | 18:6a4db94011d3 | 1289 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 1290 | count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 1291 | do |
sahilmgandhi | 18:6a4db94011d3 | 1292 | { |
sahilmgandhi | 18:6a4db94011d3 | 1293 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 1294 | { |
sahilmgandhi | 18:6a4db94011d3 | 1295 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1296 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 1297 | |
sahilmgandhi | 18:6a4db94011d3 | 1298 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1299 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1300 | |
sahilmgandhi | 18:6a4db94011d3 | 1301 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 1302 | } |
sahilmgandhi | 18:6a4db94011d3 | 1303 | } |
sahilmgandhi | 18:6a4db94011d3 | 1304 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); |
sahilmgandhi | 18:6a4db94011d3 | 1305 | } |
sahilmgandhi | 18:6a4db94011d3 | 1306 | |
sahilmgandhi | 18:6a4db94011d3 | 1307 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 1308 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1309 | |
sahilmgandhi | 18:6a4db94011d3 | 1310 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 1311 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 1312 | |
sahilmgandhi | 18:6a4db94011d3 | 1313 | hi2c->State = HAL_I2C_STATE_BUSY_TX; |
sahilmgandhi | 18:6a4db94011d3 | 1314 | hi2c->Mode = HAL_I2C_MODE_MASTER; |
sahilmgandhi | 18:6a4db94011d3 | 1315 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1316 | |
sahilmgandhi | 18:6a4db94011d3 | 1317 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 1318 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1319 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1320 | hi2c->XferOptions = XferOptions; |
sahilmgandhi | 18:6a4db94011d3 | 1321 | hi2c->Devaddress = DevAddress; |
sahilmgandhi | 18:6a4db94011d3 | 1322 | |
sahilmgandhi | 18:6a4db94011d3 | 1323 | Prev_State = hi2c->PreviousState; |
sahilmgandhi | 18:6a4db94011d3 | 1324 | |
sahilmgandhi | 18:6a4db94011d3 | 1325 | /* Generate Start */ |
sahilmgandhi | 18:6a4db94011d3 | 1326 | if((Prev_State == I2C_STATE_MASTER_BUSY_RX) || (Prev_State == I2C_STATE_NONE)) |
sahilmgandhi | 18:6a4db94011d3 | 1327 | { |
sahilmgandhi | 18:6a4db94011d3 | 1328 | /* Generate Start condition if first transfer */ |
sahilmgandhi | 18:6a4db94011d3 | 1329 | if((XferOptions == I2C_FIRST_AND_LAST_FRAME) || (XferOptions == I2C_FIRST_FRAME)) |
sahilmgandhi | 18:6a4db94011d3 | 1330 | { |
sahilmgandhi | 18:6a4db94011d3 | 1331 | /* Generate Start */ |
sahilmgandhi | 18:6a4db94011d3 | 1332 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 1333 | } |
sahilmgandhi | 18:6a4db94011d3 | 1334 | else if(Prev_State == I2C_STATE_MASTER_BUSY_RX) |
sahilmgandhi | 18:6a4db94011d3 | 1335 | { |
sahilmgandhi | 18:6a4db94011d3 | 1336 | /* Generate ReStart */ |
sahilmgandhi | 18:6a4db94011d3 | 1337 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 1338 | } |
sahilmgandhi | 18:6a4db94011d3 | 1339 | } |
sahilmgandhi | 18:6a4db94011d3 | 1340 | |
sahilmgandhi | 18:6a4db94011d3 | 1341 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1342 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1343 | |
sahilmgandhi | 18:6a4db94011d3 | 1344 | /* Note : The I2C interrupts must be enabled after unlocking current process |
sahilmgandhi | 18:6a4db94011d3 | 1345 | to avoid the risk of I2C interrupt handle execution before current |
sahilmgandhi | 18:6a4db94011d3 | 1346 | process unlock */ |
sahilmgandhi | 18:6a4db94011d3 | 1347 | |
sahilmgandhi | 18:6a4db94011d3 | 1348 | /* Enable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 1349 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 1350 | |
sahilmgandhi | 18:6a4db94011d3 | 1351 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 1352 | } |
sahilmgandhi | 18:6a4db94011d3 | 1353 | else |
sahilmgandhi | 18:6a4db94011d3 | 1354 | { |
sahilmgandhi | 18:6a4db94011d3 | 1355 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 1356 | } |
sahilmgandhi | 18:6a4db94011d3 | 1357 | } |
sahilmgandhi | 18:6a4db94011d3 | 1358 | |
sahilmgandhi | 18:6a4db94011d3 | 1359 | /** |
sahilmgandhi | 18:6a4db94011d3 | 1360 | * @brief Sequential receive in master mode an amount of data in no-blocking mode with Interrupt |
sahilmgandhi | 18:6a4db94011d3 | 1361 | * @note This interface allow to manage repeated start condition when a direction change during transfer |
sahilmgandhi | 18:6a4db94011d3 | 1362 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 1363 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 1364 | * @param DevAddress Target device address: The device 7 bits address value |
sahilmgandhi | 18:6a4db94011d3 | 1365 | * in datasheet must be shift at right before call interface |
sahilmgandhi | 18:6a4db94011d3 | 1366 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 1367 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 1368 | * @param XferOptions Options of Transfer, value of @ref I2C_XferOptions_definition |
sahilmgandhi | 18:6a4db94011d3 | 1369 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 1370 | */ |
sahilmgandhi | 18:6a4db94011d3 | 1371 | HAL_StatusTypeDef HAL_I2C_Master_Sequential_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions) |
sahilmgandhi | 18:6a4db94011d3 | 1372 | { |
sahilmgandhi | 18:6a4db94011d3 | 1373 | uint32_t Prev_State = 0x00U; |
sahilmgandhi | 18:6a4db94011d3 | 1374 | __IO uint32_t count = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 1375 | |
sahilmgandhi | 18:6a4db94011d3 | 1376 | /* Check the parameters */ |
sahilmgandhi | 18:6a4db94011d3 | 1377 | assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); |
sahilmgandhi | 18:6a4db94011d3 | 1378 | |
sahilmgandhi | 18:6a4db94011d3 | 1379 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 1380 | { |
sahilmgandhi | 18:6a4db94011d3 | 1381 | /* Check Busy Flag only if FIRST call of Master interface */ |
sahilmgandhi | 18:6a4db94011d3 | 1382 | if((XferOptions == I2C_FIRST_AND_LAST_FRAME) || (XferOptions == I2C_FIRST_FRAME)) |
sahilmgandhi | 18:6a4db94011d3 | 1383 | { |
sahilmgandhi | 18:6a4db94011d3 | 1384 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 1385 | count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 1386 | do |
sahilmgandhi | 18:6a4db94011d3 | 1387 | { |
sahilmgandhi | 18:6a4db94011d3 | 1388 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 1389 | { |
sahilmgandhi | 18:6a4db94011d3 | 1390 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1391 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 1392 | |
sahilmgandhi | 18:6a4db94011d3 | 1393 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1394 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1395 | |
sahilmgandhi | 18:6a4db94011d3 | 1396 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 1397 | } |
sahilmgandhi | 18:6a4db94011d3 | 1398 | } |
sahilmgandhi | 18:6a4db94011d3 | 1399 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); |
sahilmgandhi | 18:6a4db94011d3 | 1400 | } |
sahilmgandhi | 18:6a4db94011d3 | 1401 | |
sahilmgandhi | 18:6a4db94011d3 | 1402 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 1403 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1404 | |
sahilmgandhi | 18:6a4db94011d3 | 1405 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 1406 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 1407 | |
sahilmgandhi | 18:6a4db94011d3 | 1408 | hi2c->State = HAL_I2C_STATE_BUSY_RX; |
sahilmgandhi | 18:6a4db94011d3 | 1409 | hi2c->Mode = HAL_I2C_MODE_MASTER; |
sahilmgandhi | 18:6a4db94011d3 | 1410 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1411 | |
sahilmgandhi | 18:6a4db94011d3 | 1412 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 1413 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1414 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1415 | hi2c->XferOptions = XferOptions; |
sahilmgandhi | 18:6a4db94011d3 | 1416 | hi2c->Devaddress = DevAddress; |
sahilmgandhi | 18:6a4db94011d3 | 1417 | |
sahilmgandhi | 18:6a4db94011d3 | 1418 | Prev_State = hi2c->PreviousState; |
sahilmgandhi | 18:6a4db94011d3 | 1419 | |
sahilmgandhi | 18:6a4db94011d3 | 1420 | if((Prev_State == I2C_STATE_MASTER_BUSY_TX) || (Prev_State == I2C_STATE_NONE)) |
sahilmgandhi | 18:6a4db94011d3 | 1421 | { |
sahilmgandhi | 18:6a4db94011d3 | 1422 | /* Generate Start condition if first transfer */ |
sahilmgandhi | 18:6a4db94011d3 | 1423 | if((XferOptions == I2C_FIRST_AND_LAST_FRAME) || (XferOptions == I2C_FIRST_FRAME) || (XferOptions == I2C_NO_OPTION_FRAME)) |
sahilmgandhi | 18:6a4db94011d3 | 1424 | { |
sahilmgandhi | 18:6a4db94011d3 | 1425 | /* Enable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 1426 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 1427 | |
sahilmgandhi | 18:6a4db94011d3 | 1428 | /* Generate Start */ |
sahilmgandhi | 18:6a4db94011d3 | 1429 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 1430 | } |
sahilmgandhi | 18:6a4db94011d3 | 1431 | else if(Prev_State == I2C_STATE_MASTER_BUSY_TX) |
sahilmgandhi | 18:6a4db94011d3 | 1432 | { |
sahilmgandhi | 18:6a4db94011d3 | 1433 | /* Enable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 1434 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 1435 | |
sahilmgandhi | 18:6a4db94011d3 | 1436 | /* Generate ReStart */ |
sahilmgandhi | 18:6a4db94011d3 | 1437 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 1438 | } |
sahilmgandhi | 18:6a4db94011d3 | 1439 | } |
sahilmgandhi | 18:6a4db94011d3 | 1440 | |
sahilmgandhi | 18:6a4db94011d3 | 1441 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1442 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1443 | |
sahilmgandhi | 18:6a4db94011d3 | 1444 | /* Note : The I2C interrupts must be enabled after unlocking current process |
sahilmgandhi | 18:6a4db94011d3 | 1445 | to avoid the risk of I2C interrupt handle execution before current |
sahilmgandhi | 18:6a4db94011d3 | 1446 | process unlock */ |
sahilmgandhi | 18:6a4db94011d3 | 1447 | |
sahilmgandhi | 18:6a4db94011d3 | 1448 | /* Enable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 1449 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 1450 | |
sahilmgandhi | 18:6a4db94011d3 | 1451 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 1452 | } |
sahilmgandhi | 18:6a4db94011d3 | 1453 | else |
sahilmgandhi | 18:6a4db94011d3 | 1454 | { |
sahilmgandhi | 18:6a4db94011d3 | 1455 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 1456 | } |
sahilmgandhi | 18:6a4db94011d3 | 1457 | } |
sahilmgandhi | 18:6a4db94011d3 | 1458 | |
sahilmgandhi | 18:6a4db94011d3 | 1459 | /** |
sahilmgandhi | 18:6a4db94011d3 | 1460 | * @brief Transmit in slave mode an amount of data in no-blocking mode with Interrupt |
sahilmgandhi | 18:6a4db94011d3 | 1461 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 1462 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 1463 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 1464 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 1465 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 1466 | */ |
sahilmgandhi | 18:6a4db94011d3 | 1467 | HAL_StatusTypeDef HAL_I2C_Slave_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) |
sahilmgandhi | 18:6a4db94011d3 | 1468 | { |
sahilmgandhi | 18:6a4db94011d3 | 1469 | __IO uint32_t count = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 1470 | |
sahilmgandhi | 18:6a4db94011d3 | 1471 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 1472 | { |
sahilmgandhi | 18:6a4db94011d3 | 1473 | if((pData == NULL) || (Size == 0U)) |
sahilmgandhi | 18:6a4db94011d3 | 1474 | { |
sahilmgandhi | 18:6a4db94011d3 | 1475 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 1476 | } |
sahilmgandhi | 18:6a4db94011d3 | 1477 | |
sahilmgandhi | 18:6a4db94011d3 | 1478 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 1479 | count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 1480 | do |
sahilmgandhi | 18:6a4db94011d3 | 1481 | { |
sahilmgandhi | 18:6a4db94011d3 | 1482 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 1483 | { |
sahilmgandhi | 18:6a4db94011d3 | 1484 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1485 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 1486 | |
sahilmgandhi | 18:6a4db94011d3 | 1487 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1488 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1489 | |
sahilmgandhi | 18:6a4db94011d3 | 1490 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 1491 | } |
sahilmgandhi | 18:6a4db94011d3 | 1492 | } |
sahilmgandhi | 18:6a4db94011d3 | 1493 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); |
sahilmgandhi | 18:6a4db94011d3 | 1494 | |
sahilmgandhi | 18:6a4db94011d3 | 1495 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 1496 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1497 | |
sahilmgandhi | 18:6a4db94011d3 | 1498 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 1499 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 1500 | |
sahilmgandhi | 18:6a4db94011d3 | 1501 | hi2c->State = HAL_I2C_STATE_BUSY_TX; |
sahilmgandhi | 18:6a4db94011d3 | 1502 | hi2c->Mode = HAL_I2C_MODE_SLAVE; |
sahilmgandhi | 18:6a4db94011d3 | 1503 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1504 | |
sahilmgandhi | 18:6a4db94011d3 | 1505 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 1506 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1507 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1508 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 1509 | |
sahilmgandhi | 18:6a4db94011d3 | 1510 | /* Enable Address Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 1511 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 1512 | |
sahilmgandhi | 18:6a4db94011d3 | 1513 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1514 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1515 | |
sahilmgandhi | 18:6a4db94011d3 | 1516 | /* Note : The I2C interrupts must be enabled after unlocking current process |
sahilmgandhi | 18:6a4db94011d3 | 1517 | to avoid the risk of I2C interrupt handle execution before current |
sahilmgandhi | 18:6a4db94011d3 | 1518 | process unlock */ |
sahilmgandhi | 18:6a4db94011d3 | 1519 | |
sahilmgandhi | 18:6a4db94011d3 | 1520 | /* Enable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 1521 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 1522 | |
sahilmgandhi | 18:6a4db94011d3 | 1523 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 1524 | } |
sahilmgandhi | 18:6a4db94011d3 | 1525 | else |
sahilmgandhi | 18:6a4db94011d3 | 1526 | { |
sahilmgandhi | 18:6a4db94011d3 | 1527 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 1528 | } |
sahilmgandhi | 18:6a4db94011d3 | 1529 | } |
sahilmgandhi | 18:6a4db94011d3 | 1530 | |
sahilmgandhi | 18:6a4db94011d3 | 1531 | /** |
sahilmgandhi | 18:6a4db94011d3 | 1532 | * @brief Receive in slave mode an amount of data in no-blocking mode with Interrupt |
sahilmgandhi | 18:6a4db94011d3 | 1533 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 1534 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 1535 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 1536 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 1537 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 1538 | */ |
sahilmgandhi | 18:6a4db94011d3 | 1539 | HAL_StatusTypeDef HAL_I2C_Slave_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) |
sahilmgandhi | 18:6a4db94011d3 | 1540 | { |
sahilmgandhi | 18:6a4db94011d3 | 1541 | __IO uint32_t count = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 1542 | |
sahilmgandhi | 18:6a4db94011d3 | 1543 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 1544 | { |
sahilmgandhi | 18:6a4db94011d3 | 1545 | if((pData == NULL) || (Size == 0U)) |
sahilmgandhi | 18:6a4db94011d3 | 1546 | { |
sahilmgandhi | 18:6a4db94011d3 | 1547 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 1548 | } |
sahilmgandhi | 18:6a4db94011d3 | 1549 | |
sahilmgandhi | 18:6a4db94011d3 | 1550 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 1551 | count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 1552 | do |
sahilmgandhi | 18:6a4db94011d3 | 1553 | { |
sahilmgandhi | 18:6a4db94011d3 | 1554 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 1555 | { |
sahilmgandhi | 18:6a4db94011d3 | 1556 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1557 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 1558 | |
sahilmgandhi | 18:6a4db94011d3 | 1559 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1560 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1561 | |
sahilmgandhi | 18:6a4db94011d3 | 1562 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 1563 | } |
sahilmgandhi | 18:6a4db94011d3 | 1564 | } |
sahilmgandhi | 18:6a4db94011d3 | 1565 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); |
sahilmgandhi | 18:6a4db94011d3 | 1566 | |
sahilmgandhi | 18:6a4db94011d3 | 1567 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 1568 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1569 | |
sahilmgandhi | 18:6a4db94011d3 | 1570 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 1571 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 1572 | |
sahilmgandhi | 18:6a4db94011d3 | 1573 | hi2c->State = HAL_I2C_STATE_BUSY_RX; |
sahilmgandhi | 18:6a4db94011d3 | 1574 | hi2c->Mode = HAL_I2C_MODE_SLAVE; |
sahilmgandhi | 18:6a4db94011d3 | 1575 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1576 | |
sahilmgandhi | 18:6a4db94011d3 | 1577 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 1578 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1579 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1580 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 1581 | |
sahilmgandhi | 18:6a4db94011d3 | 1582 | /* Enable Address Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 1583 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 1584 | |
sahilmgandhi | 18:6a4db94011d3 | 1585 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1586 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1587 | |
sahilmgandhi | 18:6a4db94011d3 | 1588 | /* Note : The I2C interrupts must be enabled after unlocking current process |
sahilmgandhi | 18:6a4db94011d3 | 1589 | to avoid the risk of I2C interrupt handle execution before current |
sahilmgandhi | 18:6a4db94011d3 | 1590 | process unlock */ |
sahilmgandhi | 18:6a4db94011d3 | 1591 | |
sahilmgandhi | 18:6a4db94011d3 | 1592 | /* Enable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 1593 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 1594 | |
sahilmgandhi | 18:6a4db94011d3 | 1595 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 1596 | } |
sahilmgandhi | 18:6a4db94011d3 | 1597 | else |
sahilmgandhi | 18:6a4db94011d3 | 1598 | { |
sahilmgandhi | 18:6a4db94011d3 | 1599 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 1600 | } |
sahilmgandhi | 18:6a4db94011d3 | 1601 | } |
sahilmgandhi | 18:6a4db94011d3 | 1602 | |
sahilmgandhi | 18:6a4db94011d3 | 1603 | /** |
sahilmgandhi | 18:6a4db94011d3 | 1604 | * @brief Sequential transmit in slave mode an amount of data in no-blocking mode with Interrupt |
sahilmgandhi | 18:6a4db94011d3 | 1605 | * @note This interface allow to manage repeated start condition when a direction change during transfer |
sahilmgandhi | 18:6a4db94011d3 | 1606 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 1607 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 1608 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 1609 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 1610 | * @param XferOptions Options of Transfer, value of @ref I2C_XferOptions_definition |
sahilmgandhi | 18:6a4db94011d3 | 1611 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 1612 | */ |
sahilmgandhi | 18:6a4db94011d3 | 1613 | HAL_StatusTypeDef HAL_I2C_Slave_Sequential_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions) |
sahilmgandhi | 18:6a4db94011d3 | 1614 | { |
sahilmgandhi | 18:6a4db94011d3 | 1615 | /* Check the parameters */ |
sahilmgandhi | 18:6a4db94011d3 | 1616 | assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); |
sahilmgandhi | 18:6a4db94011d3 | 1617 | |
sahilmgandhi | 18:6a4db94011d3 | 1618 | if(hi2c->State == HAL_I2C_STATE_LISTEN) |
sahilmgandhi | 18:6a4db94011d3 | 1619 | { |
sahilmgandhi | 18:6a4db94011d3 | 1620 | if((pData == NULL) || (Size == 0U)) |
sahilmgandhi | 18:6a4db94011d3 | 1621 | { |
sahilmgandhi | 18:6a4db94011d3 | 1622 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 1623 | } |
sahilmgandhi | 18:6a4db94011d3 | 1624 | |
sahilmgandhi | 18:6a4db94011d3 | 1625 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 1626 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1627 | |
sahilmgandhi | 18:6a4db94011d3 | 1628 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 1629 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 1630 | |
sahilmgandhi | 18:6a4db94011d3 | 1631 | hi2c->State = HAL_I2C_STATE_BUSY_TX_LISTEN; |
sahilmgandhi | 18:6a4db94011d3 | 1632 | hi2c->Mode = HAL_I2C_MODE_SLAVE; |
sahilmgandhi | 18:6a4db94011d3 | 1633 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1634 | |
sahilmgandhi | 18:6a4db94011d3 | 1635 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 1636 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1637 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1638 | hi2c->XferOptions = XferOptions; |
sahilmgandhi | 18:6a4db94011d3 | 1639 | |
sahilmgandhi | 18:6a4db94011d3 | 1640 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 1641 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1642 | |
sahilmgandhi | 18:6a4db94011d3 | 1643 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1644 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1645 | |
sahilmgandhi | 18:6a4db94011d3 | 1646 | /* Note : The I2C interrupts must be enabled after unlocking current process |
sahilmgandhi | 18:6a4db94011d3 | 1647 | to avoid the risk of I2C interrupt handle execution before current |
sahilmgandhi | 18:6a4db94011d3 | 1648 | process unlock */ |
sahilmgandhi | 18:6a4db94011d3 | 1649 | |
sahilmgandhi | 18:6a4db94011d3 | 1650 | /* Enable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 1651 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 1652 | |
sahilmgandhi | 18:6a4db94011d3 | 1653 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 1654 | } |
sahilmgandhi | 18:6a4db94011d3 | 1655 | else |
sahilmgandhi | 18:6a4db94011d3 | 1656 | { |
sahilmgandhi | 18:6a4db94011d3 | 1657 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 1658 | } |
sahilmgandhi | 18:6a4db94011d3 | 1659 | } |
sahilmgandhi | 18:6a4db94011d3 | 1660 | |
sahilmgandhi | 18:6a4db94011d3 | 1661 | /** |
sahilmgandhi | 18:6a4db94011d3 | 1662 | * @brief Sequential receive in slave mode an amount of data in no-blocking mode with Interrupt |
sahilmgandhi | 18:6a4db94011d3 | 1663 | * @note This interface allow to manage repeated start condition when a direction change during transfer |
sahilmgandhi | 18:6a4db94011d3 | 1664 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 1665 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 1666 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 1667 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 1668 | * @param XferOptions Options of Transfer, value of @ref I2C_XferOptions_definition |
sahilmgandhi | 18:6a4db94011d3 | 1669 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 1670 | */ |
sahilmgandhi | 18:6a4db94011d3 | 1671 | HAL_StatusTypeDef HAL_I2C_Slave_Sequential_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions) |
sahilmgandhi | 18:6a4db94011d3 | 1672 | { |
sahilmgandhi | 18:6a4db94011d3 | 1673 | /* Check the parameters */ |
sahilmgandhi | 18:6a4db94011d3 | 1674 | assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); |
sahilmgandhi | 18:6a4db94011d3 | 1675 | |
sahilmgandhi | 18:6a4db94011d3 | 1676 | if(hi2c->State == HAL_I2C_STATE_LISTEN) |
sahilmgandhi | 18:6a4db94011d3 | 1677 | { |
sahilmgandhi | 18:6a4db94011d3 | 1678 | if((pData == NULL) || (Size == 0U)) |
sahilmgandhi | 18:6a4db94011d3 | 1679 | { |
sahilmgandhi | 18:6a4db94011d3 | 1680 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 1681 | } |
sahilmgandhi | 18:6a4db94011d3 | 1682 | |
sahilmgandhi | 18:6a4db94011d3 | 1683 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 1684 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1685 | |
sahilmgandhi | 18:6a4db94011d3 | 1686 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 1687 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 1688 | |
sahilmgandhi | 18:6a4db94011d3 | 1689 | hi2c->State = HAL_I2C_STATE_BUSY_RX_LISTEN; |
sahilmgandhi | 18:6a4db94011d3 | 1690 | hi2c->Mode = HAL_I2C_MODE_SLAVE; |
sahilmgandhi | 18:6a4db94011d3 | 1691 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1692 | |
sahilmgandhi | 18:6a4db94011d3 | 1693 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 1694 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1695 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1696 | hi2c->XferOptions = XferOptions; |
sahilmgandhi | 18:6a4db94011d3 | 1697 | |
sahilmgandhi | 18:6a4db94011d3 | 1698 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 1699 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1700 | |
sahilmgandhi | 18:6a4db94011d3 | 1701 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1702 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1703 | |
sahilmgandhi | 18:6a4db94011d3 | 1704 | /* Note : The I2C interrupts must be enabled after unlocking current process |
sahilmgandhi | 18:6a4db94011d3 | 1705 | to avoid the risk of I2C interrupt handle execution before current |
sahilmgandhi | 18:6a4db94011d3 | 1706 | process unlock */ |
sahilmgandhi | 18:6a4db94011d3 | 1707 | |
sahilmgandhi | 18:6a4db94011d3 | 1708 | /* Enable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 1709 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 1710 | |
sahilmgandhi | 18:6a4db94011d3 | 1711 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 1712 | } |
sahilmgandhi | 18:6a4db94011d3 | 1713 | else |
sahilmgandhi | 18:6a4db94011d3 | 1714 | { |
sahilmgandhi | 18:6a4db94011d3 | 1715 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 1716 | } |
sahilmgandhi | 18:6a4db94011d3 | 1717 | } |
sahilmgandhi | 18:6a4db94011d3 | 1718 | |
sahilmgandhi | 18:6a4db94011d3 | 1719 | /** |
sahilmgandhi | 18:6a4db94011d3 | 1720 | * @brief Enable the Address listen mode with Interrupt. |
sahilmgandhi | 18:6a4db94011d3 | 1721 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 1722 | * the configuration information for the specified I2C. |
sahilmgandhi | 18:6a4db94011d3 | 1723 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 1724 | */ |
sahilmgandhi | 18:6a4db94011d3 | 1725 | HAL_StatusTypeDef HAL_I2C_EnableListen_IT(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 1726 | { |
sahilmgandhi | 18:6a4db94011d3 | 1727 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 1728 | { |
sahilmgandhi | 18:6a4db94011d3 | 1729 | hi2c->State = HAL_I2C_STATE_LISTEN; |
sahilmgandhi | 18:6a4db94011d3 | 1730 | |
sahilmgandhi | 18:6a4db94011d3 | 1731 | /* Enable Address Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 1732 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 1733 | |
sahilmgandhi | 18:6a4db94011d3 | 1734 | /* Enable EVT and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 1735 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 1736 | |
sahilmgandhi | 18:6a4db94011d3 | 1737 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 1738 | } |
sahilmgandhi | 18:6a4db94011d3 | 1739 | else |
sahilmgandhi | 18:6a4db94011d3 | 1740 | { |
sahilmgandhi | 18:6a4db94011d3 | 1741 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 1742 | } |
sahilmgandhi | 18:6a4db94011d3 | 1743 | } |
sahilmgandhi | 18:6a4db94011d3 | 1744 | |
sahilmgandhi | 18:6a4db94011d3 | 1745 | /** |
sahilmgandhi | 18:6a4db94011d3 | 1746 | * @brief Disable the Address listen mode with Interrupt. |
sahilmgandhi | 18:6a4db94011d3 | 1747 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 1748 | * the configuration information for the specified I2C. |
sahilmgandhi | 18:6a4db94011d3 | 1749 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 1750 | */ |
sahilmgandhi | 18:6a4db94011d3 | 1751 | HAL_StatusTypeDef HAL_I2C_DisableListen_IT(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 1752 | { |
sahilmgandhi | 18:6a4db94011d3 | 1753 | /* Declaration of tmp to prevent undefined behavior of volatile usage */ |
sahilmgandhi | 18:6a4db94011d3 | 1754 | uint32_t tmp; |
sahilmgandhi | 18:6a4db94011d3 | 1755 | |
sahilmgandhi | 18:6a4db94011d3 | 1756 | /* Disable Address listen mode only if a transfer is not ongoing */ |
sahilmgandhi | 18:6a4db94011d3 | 1757 | if(hi2c->State == HAL_I2C_STATE_LISTEN) |
sahilmgandhi | 18:6a4db94011d3 | 1758 | { |
sahilmgandhi | 18:6a4db94011d3 | 1759 | tmp = (uint32_t)(hi2c->State) & I2C_STATE_MSK; |
sahilmgandhi | 18:6a4db94011d3 | 1760 | hi2c->PreviousState = tmp | (uint32_t)(hi2c->Mode); |
sahilmgandhi | 18:6a4db94011d3 | 1761 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 1762 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1763 | |
sahilmgandhi | 18:6a4db94011d3 | 1764 | /* Disable Address Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 1765 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 1766 | |
sahilmgandhi | 18:6a4db94011d3 | 1767 | /* Disable EVT and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 1768 | __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 1769 | |
sahilmgandhi | 18:6a4db94011d3 | 1770 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 1771 | } |
sahilmgandhi | 18:6a4db94011d3 | 1772 | else |
sahilmgandhi | 18:6a4db94011d3 | 1773 | { |
sahilmgandhi | 18:6a4db94011d3 | 1774 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 1775 | } |
sahilmgandhi | 18:6a4db94011d3 | 1776 | } |
sahilmgandhi | 18:6a4db94011d3 | 1777 | |
sahilmgandhi | 18:6a4db94011d3 | 1778 | /** |
sahilmgandhi | 18:6a4db94011d3 | 1779 | * @brief Transmit in master mode an amount of data in no-blocking mode with DMA |
sahilmgandhi | 18:6a4db94011d3 | 1780 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 1781 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 1782 | * @param DevAddress Target device address: The device 7 bits address value |
sahilmgandhi | 18:6a4db94011d3 | 1783 | * in datasheet must be shift at right before call interface |
sahilmgandhi | 18:6a4db94011d3 | 1784 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 1785 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 1786 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 1787 | */ |
sahilmgandhi | 18:6a4db94011d3 | 1788 | HAL_StatusTypeDef HAL_I2C_Master_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) |
sahilmgandhi | 18:6a4db94011d3 | 1789 | { |
sahilmgandhi | 18:6a4db94011d3 | 1790 | uint32_t tickstart = 0x00U; |
sahilmgandhi | 18:6a4db94011d3 | 1791 | |
sahilmgandhi | 18:6a4db94011d3 | 1792 | __IO uint32_t count = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 1793 | |
sahilmgandhi | 18:6a4db94011d3 | 1794 | /* Init tickstart for timeout management*/ |
sahilmgandhi | 18:6a4db94011d3 | 1795 | tickstart = HAL_GetTick(); |
sahilmgandhi | 18:6a4db94011d3 | 1796 | |
sahilmgandhi | 18:6a4db94011d3 | 1797 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 1798 | { |
sahilmgandhi | 18:6a4db94011d3 | 1799 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 1800 | count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 1801 | do |
sahilmgandhi | 18:6a4db94011d3 | 1802 | { |
sahilmgandhi | 18:6a4db94011d3 | 1803 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 1804 | { |
sahilmgandhi | 18:6a4db94011d3 | 1805 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1806 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 1807 | |
sahilmgandhi | 18:6a4db94011d3 | 1808 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1809 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1810 | |
sahilmgandhi | 18:6a4db94011d3 | 1811 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 1812 | } |
sahilmgandhi | 18:6a4db94011d3 | 1813 | } |
sahilmgandhi | 18:6a4db94011d3 | 1814 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); |
sahilmgandhi | 18:6a4db94011d3 | 1815 | |
sahilmgandhi | 18:6a4db94011d3 | 1816 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 1817 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1818 | |
sahilmgandhi | 18:6a4db94011d3 | 1819 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 1820 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 1821 | |
sahilmgandhi | 18:6a4db94011d3 | 1822 | hi2c->State = HAL_I2C_STATE_BUSY_TX; |
sahilmgandhi | 18:6a4db94011d3 | 1823 | hi2c->Mode = HAL_I2C_MODE_MASTER; |
sahilmgandhi | 18:6a4db94011d3 | 1824 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1825 | |
sahilmgandhi | 18:6a4db94011d3 | 1826 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 1827 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1828 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1829 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 1830 | |
sahilmgandhi | 18:6a4db94011d3 | 1831 | if(hi2c->XferSize > 0U) |
sahilmgandhi | 18:6a4db94011d3 | 1832 | { |
sahilmgandhi | 18:6a4db94011d3 | 1833 | /* Set the I2C DMA transfer complete callback */ |
sahilmgandhi | 18:6a4db94011d3 | 1834 | hi2c->hdmatx->XferCpltCallback = I2C_DMAXferCplt; |
sahilmgandhi | 18:6a4db94011d3 | 1835 | |
sahilmgandhi | 18:6a4db94011d3 | 1836 | /* Set the DMA error callback */ |
sahilmgandhi | 18:6a4db94011d3 | 1837 | hi2c->hdmatx->XferErrorCallback = I2C_DMAError; |
sahilmgandhi | 18:6a4db94011d3 | 1838 | |
sahilmgandhi | 18:6a4db94011d3 | 1839 | /* Set the unused DMA callbacks to NULL */ |
sahilmgandhi | 18:6a4db94011d3 | 1840 | hi2c->hdmatx->XferHalfCpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 1841 | hi2c->hdmatx->XferM1CpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 1842 | hi2c->hdmatx->XferM1HalfCpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 1843 | hi2c->hdmatx->XferAbortCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 1844 | |
sahilmgandhi | 18:6a4db94011d3 | 1845 | /* Enable the DMA Stream */ |
sahilmgandhi | 18:6a4db94011d3 | 1846 | HAL_DMA_Start_IT(hi2c->hdmatx, (uint32_t)pData, (uint32_t)&hi2c->Instance->DR, Size); |
sahilmgandhi | 18:6a4db94011d3 | 1847 | |
sahilmgandhi | 18:6a4db94011d3 | 1848 | /* Send Slave Address */ |
sahilmgandhi | 18:6a4db94011d3 | 1849 | if(I2C_MasterRequestWrite(hi2c, DevAddress, I2C_TIMEOUT_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 1850 | { |
sahilmgandhi | 18:6a4db94011d3 | 1851 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 1852 | { |
sahilmgandhi | 18:6a4db94011d3 | 1853 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1854 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1855 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 1856 | } |
sahilmgandhi | 18:6a4db94011d3 | 1857 | else |
sahilmgandhi | 18:6a4db94011d3 | 1858 | { |
sahilmgandhi | 18:6a4db94011d3 | 1859 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1860 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1861 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 1862 | } |
sahilmgandhi | 18:6a4db94011d3 | 1863 | } |
sahilmgandhi | 18:6a4db94011d3 | 1864 | |
sahilmgandhi | 18:6a4db94011d3 | 1865 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 1866 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1867 | |
sahilmgandhi | 18:6a4db94011d3 | 1868 | /* Enable ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 1869 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 1870 | |
sahilmgandhi | 18:6a4db94011d3 | 1871 | /* Enable DMA Request */ |
sahilmgandhi | 18:6a4db94011d3 | 1872 | hi2c->Instance->CR2 |= I2C_CR2_DMAEN; |
sahilmgandhi | 18:6a4db94011d3 | 1873 | } |
sahilmgandhi | 18:6a4db94011d3 | 1874 | else |
sahilmgandhi | 18:6a4db94011d3 | 1875 | { |
sahilmgandhi | 18:6a4db94011d3 | 1876 | /* Send Slave Address */ |
sahilmgandhi | 18:6a4db94011d3 | 1877 | if(I2C_MasterRequestWrite(hi2c, DevAddress, I2C_TIMEOUT_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 1878 | { |
sahilmgandhi | 18:6a4db94011d3 | 1879 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 1880 | { |
sahilmgandhi | 18:6a4db94011d3 | 1881 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1882 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1883 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 1884 | } |
sahilmgandhi | 18:6a4db94011d3 | 1885 | else |
sahilmgandhi | 18:6a4db94011d3 | 1886 | { |
sahilmgandhi | 18:6a4db94011d3 | 1887 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1888 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1889 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 1890 | } |
sahilmgandhi | 18:6a4db94011d3 | 1891 | } |
sahilmgandhi | 18:6a4db94011d3 | 1892 | |
sahilmgandhi | 18:6a4db94011d3 | 1893 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 1894 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1895 | |
sahilmgandhi | 18:6a4db94011d3 | 1896 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 1897 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 1898 | |
sahilmgandhi | 18:6a4db94011d3 | 1899 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 1900 | } |
sahilmgandhi | 18:6a4db94011d3 | 1901 | |
sahilmgandhi | 18:6a4db94011d3 | 1902 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1903 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1904 | |
sahilmgandhi | 18:6a4db94011d3 | 1905 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 1906 | } |
sahilmgandhi | 18:6a4db94011d3 | 1907 | else |
sahilmgandhi | 18:6a4db94011d3 | 1908 | { |
sahilmgandhi | 18:6a4db94011d3 | 1909 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 1910 | } |
sahilmgandhi | 18:6a4db94011d3 | 1911 | } |
sahilmgandhi | 18:6a4db94011d3 | 1912 | |
sahilmgandhi | 18:6a4db94011d3 | 1913 | /** |
sahilmgandhi | 18:6a4db94011d3 | 1914 | * @brief Receive in master mode an amount of data in no-blocking mode with DMA |
sahilmgandhi | 18:6a4db94011d3 | 1915 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 1916 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 1917 | * @param DevAddress Target device address: The device 7 bits address value |
sahilmgandhi | 18:6a4db94011d3 | 1918 | * in datasheet must be shift at right before call interface |
sahilmgandhi | 18:6a4db94011d3 | 1919 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 1920 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 1921 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 1922 | */ |
sahilmgandhi | 18:6a4db94011d3 | 1923 | HAL_StatusTypeDef HAL_I2C_Master_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) |
sahilmgandhi | 18:6a4db94011d3 | 1924 | { |
sahilmgandhi | 18:6a4db94011d3 | 1925 | uint32_t tickstart = 0x00U; |
sahilmgandhi | 18:6a4db94011d3 | 1926 | |
sahilmgandhi | 18:6a4db94011d3 | 1927 | __IO uint32_t count = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 1928 | |
sahilmgandhi | 18:6a4db94011d3 | 1929 | /* Init tickstart for timeout management*/ |
sahilmgandhi | 18:6a4db94011d3 | 1930 | tickstart = HAL_GetTick(); |
sahilmgandhi | 18:6a4db94011d3 | 1931 | |
sahilmgandhi | 18:6a4db94011d3 | 1932 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 1933 | { |
sahilmgandhi | 18:6a4db94011d3 | 1934 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 1935 | count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 1936 | do |
sahilmgandhi | 18:6a4db94011d3 | 1937 | { |
sahilmgandhi | 18:6a4db94011d3 | 1938 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 1939 | { |
sahilmgandhi | 18:6a4db94011d3 | 1940 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1941 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 1942 | |
sahilmgandhi | 18:6a4db94011d3 | 1943 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1944 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1945 | |
sahilmgandhi | 18:6a4db94011d3 | 1946 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 1947 | } |
sahilmgandhi | 18:6a4db94011d3 | 1948 | } |
sahilmgandhi | 18:6a4db94011d3 | 1949 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); |
sahilmgandhi | 18:6a4db94011d3 | 1950 | |
sahilmgandhi | 18:6a4db94011d3 | 1951 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 1952 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1953 | |
sahilmgandhi | 18:6a4db94011d3 | 1954 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 1955 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 1956 | |
sahilmgandhi | 18:6a4db94011d3 | 1957 | hi2c->State = HAL_I2C_STATE_BUSY_RX; |
sahilmgandhi | 18:6a4db94011d3 | 1958 | hi2c->Mode = HAL_I2C_MODE_MASTER; |
sahilmgandhi | 18:6a4db94011d3 | 1959 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 1960 | |
sahilmgandhi | 18:6a4db94011d3 | 1961 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 1962 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1963 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 1964 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 1965 | |
sahilmgandhi | 18:6a4db94011d3 | 1966 | if(hi2c->XferSize > 0U) |
sahilmgandhi | 18:6a4db94011d3 | 1967 | { |
sahilmgandhi | 18:6a4db94011d3 | 1968 | /* Set the I2C DMA transfer complete callback */ |
sahilmgandhi | 18:6a4db94011d3 | 1969 | hi2c->hdmarx->XferCpltCallback = I2C_DMAXferCplt; |
sahilmgandhi | 18:6a4db94011d3 | 1970 | |
sahilmgandhi | 18:6a4db94011d3 | 1971 | /* Set the DMA error callback */ |
sahilmgandhi | 18:6a4db94011d3 | 1972 | hi2c->hdmarx->XferErrorCallback = I2C_DMAError; |
sahilmgandhi | 18:6a4db94011d3 | 1973 | |
sahilmgandhi | 18:6a4db94011d3 | 1974 | /* Set the unused DMA callbacks to NULL */ |
sahilmgandhi | 18:6a4db94011d3 | 1975 | hi2c->hdmarx->XferHalfCpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 1976 | hi2c->hdmarx->XferM1CpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 1977 | hi2c->hdmarx->XferM1HalfCpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 1978 | hi2c->hdmarx->XferAbortCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 1979 | |
sahilmgandhi | 18:6a4db94011d3 | 1980 | /* Enable the DMA Stream */ |
sahilmgandhi | 18:6a4db94011d3 | 1981 | HAL_DMA_Start_IT(hi2c->hdmarx, (uint32_t)&hi2c->Instance->DR, (uint32_t)pData, Size); |
sahilmgandhi | 18:6a4db94011d3 | 1982 | |
sahilmgandhi | 18:6a4db94011d3 | 1983 | /* Send Slave Address */ |
sahilmgandhi | 18:6a4db94011d3 | 1984 | if(I2C_MasterRequestRead(hi2c, DevAddress, I2C_TIMEOUT_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 1985 | { |
sahilmgandhi | 18:6a4db94011d3 | 1986 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 1987 | { |
sahilmgandhi | 18:6a4db94011d3 | 1988 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1989 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1990 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 1991 | } |
sahilmgandhi | 18:6a4db94011d3 | 1992 | else |
sahilmgandhi | 18:6a4db94011d3 | 1993 | { |
sahilmgandhi | 18:6a4db94011d3 | 1994 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 1995 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 1996 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 1997 | } |
sahilmgandhi | 18:6a4db94011d3 | 1998 | } |
sahilmgandhi | 18:6a4db94011d3 | 1999 | |
sahilmgandhi | 18:6a4db94011d3 | 2000 | if(Size == 1U) |
sahilmgandhi | 18:6a4db94011d3 | 2001 | { |
sahilmgandhi | 18:6a4db94011d3 | 2002 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 2003 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 2004 | } |
sahilmgandhi | 18:6a4db94011d3 | 2005 | else |
sahilmgandhi | 18:6a4db94011d3 | 2006 | { |
sahilmgandhi | 18:6a4db94011d3 | 2007 | /* Enable Last DMA bit */ |
sahilmgandhi | 18:6a4db94011d3 | 2008 | hi2c->Instance->CR2 |= I2C_CR2_LAST; |
sahilmgandhi | 18:6a4db94011d3 | 2009 | } |
sahilmgandhi | 18:6a4db94011d3 | 2010 | |
sahilmgandhi | 18:6a4db94011d3 | 2011 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 2012 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2013 | |
sahilmgandhi | 18:6a4db94011d3 | 2014 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2015 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2016 | |
sahilmgandhi | 18:6a4db94011d3 | 2017 | /* Note : The I2C interrupts must be enabled after unlocking current process |
sahilmgandhi | 18:6a4db94011d3 | 2018 | to avoid the risk of I2C interrupt handle execution before current |
sahilmgandhi | 18:6a4db94011d3 | 2019 | process unlock */ |
sahilmgandhi | 18:6a4db94011d3 | 2020 | /* Enable ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 2021 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 2022 | |
sahilmgandhi | 18:6a4db94011d3 | 2023 | /* Enable DMA Request */ |
sahilmgandhi | 18:6a4db94011d3 | 2024 | hi2c->Instance->CR2 |= I2C_CR2_DMAEN; |
sahilmgandhi | 18:6a4db94011d3 | 2025 | } |
sahilmgandhi | 18:6a4db94011d3 | 2026 | else |
sahilmgandhi | 18:6a4db94011d3 | 2027 | { |
sahilmgandhi | 18:6a4db94011d3 | 2028 | /* Send Slave Address */ |
sahilmgandhi | 18:6a4db94011d3 | 2029 | if(I2C_MasterRequestRead(hi2c, DevAddress, I2C_TIMEOUT_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 2030 | { |
sahilmgandhi | 18:6a4db94011d3 | 2031 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 2032 | { |
sahilmgandhi | 18:6a4db94011d3 | 2033 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2034 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2035 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 2036 | } |
sahilmgandhi | 18:6a4db94011d3 | 2037 | else |
sahilmgandhi | 18:6a4db94011d3 | 2038 | { |
sahilmgandhi | 18:6a4db94011d3 | 2039 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2040 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2041 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2042 | } |
sahilmgandhi | 18:6a4db94011d3 | 2043 | } |
sahilmgandhi | 18:6a4db94011d3 | 2044 | |
sahilmgandhi | 18:6a4db94011d3 | 2045 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 2046 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2047 | |
sahilmgandhi | 18:6a4db94011d3 | 2048 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 2049 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 2050 | |
sahilmgandhi | 18:6a4db94011d3 | 2051 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 2052 | |
sahilmgandhi | 18:6a4db94011d3 | 2053 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2054 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2055 | } |
sahilmgandhi | 18:6a4db94011d3 | 2056 | |
sahilmgandhi | 18:6a4db94011d3 | 2057 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 2058 | } |
sahilmgandhi | 18:6a4db94011d3 | 2059 | else |
sahilmgandhi | 18:6a4db94011d3 | 2060 | { |
sahilmgandhi | 18:6a4db94011d3 | 2061 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 2062 | } |
sahilmgandhi | 18:6a4db94011d3 | 2063 | } |
sahilmgandhi | 18:6a4db94011d3 | 2064 | |
sahilmgandhi | 18:6a4db94011d3 | 2065 | /** |
sahilmgandhi | 18:6a4db94011d3 | 2066 | * @brief Abort a master I2C process communication with Interrupt. |
sahilmgandhi | 18:6a4db94011d3 | 2067 | * @note This abort can be called only if state is ready |
sahilmgandhi | 18:6a4db94011d3 | 2068 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 2069 | * the configuration information for the specified I2C. |
sahilmgandhi | 18:6a4db94011d3 | 2070 | * @param DevAddress Target device address: The device 7 bits address value |
sahilmgandhi | 18:6a4db94011d3 | 2071 | * in datasheet must be shift at right before call interface |
sahilmgandhi | 18:6a4db94011d3 | 2072 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 2073 | */ |
sahilmgandhi | 18:6a4db94011d3 | 2074 | HAL_StatusTypeDef HAL_I2C_Master_Abort_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress) |
sahilmgandhi | 18:6a4db94011d3 | 2075 | { |
sahilmgandhi | 18:6a4db94011d3 | 2076 | /* Abort Master transfer during Receive or Transmit process */ |
sahilmgandhi | 18:6a4db94011d3 | 2077 | if(hi2c->Mode == HAL_I2C_MODE_MASTER) |
sahilmgandhi | 18:6a4db94011d3 | 2078 | { |
sahilmgandhi | 18:6a4db94011d3 | 2079 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 2080 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2081 | |
sahilmgandhi | 18:6a4db94011d3 | 2082 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2083 | hi2c->State = HAL_I2C_STATE_ABORT; |
sahilmgandhi | 18:6a4db94011d3 | 2084 | |
sahilmgandhi | 18:6a4db94011d3 | 2085 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 2086 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 2087 | |
sahilmgandhi | 18:6a4db94011d3 | 2088 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 2089 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 2090 | |
sahilmgandhi | 18:6a4db94011d3 | 2091 | hi2c->XferCount = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 2092 | |
sahilmgandhi | 18:6a4db94011d3 | 2093 | /* Disable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 2094 | __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 2095 | |
sahilmgandhi | 18:6a4db94011d3 | 2096 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2097 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2098 | |
sahilmgandhi | 18:6a4db94011d3 | 2099 | if(hi2c->State == HAL_I2C_STATE_ABORT) |
sahilmgandhi | 18:6a4db94011d3 | 2100 | { |
sahilmgandhi | 18:6a4db94011d3 | 2101 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 2102 | |
sahilmgandhi | 18:6a4db94011d3 | 2103 | /* Call the Abort Complete callback */ |
sahilmgandhi | 18:6a4db94011d3 | 2104 | HAL_I2C_AbortCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2105 | } |
sahilmgandhi | 18:6a4db94011d3 | 2106 | |
sahilmgandhi | 18:6a4db94011d3 | 2107 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 2108 | } |
sahilmgandhi | 18:6a4db94011d3 | 2109 | else |
sahilmgandhi | 18:6a4db94011d3 | 2110 | { |
sahilmgandhi | 18:6a4db94011d3 | 2111 | /* Wrong usage of abort function */ |
sahilmgandhi | 18:6a4db94011d3 | 2112 | /* This function should be used only in case of abort monitored by master device */ |
sahilmgandhi | 18:6a4db94011d3 | 2113 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 2114 | } |
sahilmgandhi | 18:6a4db94011d3 | 2115 | } |
sahilmgandhi | 18:6a4db94011d3 | 2116 | |
sahilmgandhi | 18:6a4db94011d3 | 2117 | /** |
sahilmgandhi | 18:6a4db94011d3 | 2118 | * @brief Transmit in slave mode an amount of data in no-blocking mode with DMA |
sahilmgandhi | 18:6a4db94011d3 | 2119 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 2120 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 2121 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 2122 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 2123 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 2124 | */ |
sahilmgandhi | 18:6a4db94011d3 | 2125 | HAL_StatusTypeDef HAL_I2C_Slave_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) |
sahilmgandhi | 18:6a4db94011d3 | 2126 | { |
sahilmgandhi | 18:6a4db94011d3 | 2127 | __IO uint32_t count = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 2128 | |
sahilmgandhi | 18:6a4db94011d3 | 2129 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 2130 | { |
sahilmgandhi | 18:6a4db94011d3 | 2131 | if((pData == NULL) || (Size == 0U)) |
sahilmgandhi | 18:6a4db94011d3 | 2132 | { |
sahilmgandhi | 18:6a4db94011d3 | 2133 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 2134 | } |
sahilmgandhi | 18:6a4db94011d3 | 2135 | |
sahilmgandhi | 18:6a4db94011d3 | 2136 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 2137 | count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 2138 | do |
sahilmgandhi | 18:6a4db94011d3 | 2139 | { |
sahilmgandhi | 18:6a4db94011d3 | 2140 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 2141 | { |
sahilmgandhi | 18:6a4db94011d3 | 2142 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2143 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 2144 | |
sahilmgandhi | 18:6a4db94011d3 | 2145 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2146 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2147 | |
sahilmgandhi | 18:6a4db94011d3 | 2148 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2149 | } |
sahilmgandhi | 18:6a4db94011d3 | 2150 | } |
sahilmgandhi | 18:6a4db94011d3 | 2151 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); |
sahilmgandhi | 18:6a4db94011d3 | 2152 | |
sahilmgandhi | 18:6a4db94011d3 | 2153 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 2154 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2155 | |
sahilmgandhi | 18:6a4db94011d3 | 2156 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 2157 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 2158 | |
sahilmgandhi | 18:6a4db94011d3 | 2159 | hi2c->State = HAL_I2C_STATE_BUSY_TX; |
sahilmgandhi | 18:6a4db94011d3 | 2160 | hi2c->Mode = HAL_I2C_MODE_SLAVE; |
sahilmgandhi | 18:6a4db94011d3 | 2161 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2162 | |
sahilmgandhi | 18:6a4db94011d3 | 2163 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 2164 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 2165 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 2166 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 2167 | |
sahilmgandhi | 18:6a4db94011d3 | 2168 | /* Set the I2C DMA transfer complete callback */ |
sahilmgandhi | 18:6a4db94011d3 | 2169 | hi2c->hdmatx->XferCpltCallback = I2C_DMAXferCplt; |
sahilmgandhi | 18:6a4db94011d3 | 2170 | |
sahilmgandhi | 18:6a4db94011d3 | 2171 | /* Set the DMA error callback */ |
sahilmgandhi | 18:6a4db94011d3 | 2172 | hi2c->hdmatx->XferErrorCallback = I2C_DMAError; |
sahilmgandhi | 18:6a4db94011d3 | 2173 | |
sahilmgandhi | 18:6a4db94011d3 | 2174 | /* Set the unused DMA callbacks to NULL */ |
sahilmgandhi | 18:6a4db94011d3 | 2175 | hi2c->hdmatx->XferHalfCpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 2176 | hi2c->hdmatx->XferM1CpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 2177 | hi2c->hdmatx->XferM1HalfCpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 2178 | hi2c->hdmatx->XferAbortCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 2179 | |
sahilmgandhi | 18:6a4db94011d3 | 2180 | /* Enable the DMA Stream */ |
sahilmgandhi | 18:6a4db94011d3 | 2181 | HAL_DMA_Start_IT(hi2c->hdmatx, (uint32_t)pData, (uint32_t)&hi2c->Instance->DR, Size); |
sahilmgandhi | 18:6a4db94011d3 | 2182 | |
sahilmgandhi | 18:6a4db94011d3 | 2183 | /* Enable ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 2184 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 2185 | |
sahilmgandhi | 18:6a4db94011d3 | 2186 | /* Enable DMA Request */ |
sahilmgandhi | 18:6a4db94011d3 | 2187 | hi2c->Instance->CR2 |= I2C_CR2_DMAEN; |
sahilmgandhi | 18:6a4db94011d3 | 2188 | |
sahilmgandhi | 18:6a4db94011d3 | 2189 | /* Enable Address Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 2190 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 2191 | |
sahilmgandhi | 18:6a4db94011d3 | 2192 | /* Wait until ADDR flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 2193 | count = I2C_TIMEOUT_ADDR_SLAVE * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 2194 | do |
sahilmgandhi | 18:6a4db94011d3 | 2195 | { |
sahilmgandhi | 18:6a4db94011d3 | 2196 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 2197 | { |
sahilmgandhi | 18:6a4db94011d3 | 2198 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2199 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 2200 | |
sahilmgandhi | 18:6a4db94011d3 | 2201 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2202 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2203 | |
sahilmgandhi | 18:6a4db94011d3 | 2204 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2205 | } |
sahilmgandhi | 18:6a4db94011d3 | 2206 | } |
sahilmgandhi | 18:6a4db94011d3 | 2207 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_ADDR) == RESET); |
sahilmgandhi | 18:6a4db94011d3 | 2208 | |
sahilmgandhi | 18:6a4db94011d3 | 2209 | /* If 7bit addressing mode is selected */ |
sahilmgandhi | 18:6a4db94011d3 | 2210 | if(hi2c->Init.AddressingMode == I2C_ADDRESSINGMODE_7BIT) |
sahilmgandhi | 18:6a4db94011d3 | 2211 | { |
sahilmgandhi | 18:6a4db94011d3 | 2212 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 2213 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2214 | } |
sahilmgandhi | 18:6a4db94011d3 | 2215 | else |
sahilmgandhi | 18:6a4db94011d3 | 2216 | { |
sahilmgandhi | 18:6a4db94011d3 | 2217 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 2218 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2219 | |
sahilmgandhi | 18:6a4db94011d3 | 2220 | /* Wait until ADDR flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 2221 | count = I2C_TIMEOUT_ADDR_SLAVE * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 2222 | do |
sahilmgandhi | 18:6a4db94011d3 | 2223 | { |
sahilmgandhi | 18:6a4db94011d3 | 2224 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 2225 | { |
sahilmgandhi | 18:6a4db94011d3 | 2226 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2227 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 2228 | |
sahilmgandhi | 18:6a4db94011d3 | 2229 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2230 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2231 | |
sahilmgandhi | 18:6a4db94011d3 | 2232 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2233 | } |
sahilmgandhi | 18:6a4db94011d3 | 2234 | } |
sahilmgandhi | 18:6a4db94011d3 | 2235 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_ADDR) == RESET); |
sahilmgandhi | 18:6a4db94011d3 | 2236 | |
sahilmgandhi | 18:6a4db94011d3 | 2237 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 2238 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2239 | } |
sahilmgandhi | 18:6a4db94011d3 | 2240 | |
sahilmgandhi | 18:6a4db94011d3 | 2241 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2242 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2243 | |
sahilmgandhi | 18:6a4db94011d3 | 2244 | /* Note : The I2C interrupts must be enabled after unlocking current process |
sahilmgandhi | 18:6a4db94011d3 | 2245 | to avoid the risk of I2C interrupt handle execution before current |
sahilmgandhi | 18:6a4db94011d3 | 2246 | process unlock */ |
sahilmgandhi | 18:6a4db94011d3 | 2247 | /* Enable ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 2248 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 2249 | |
sahilmgandhi | 18:6a4db94011d3 | 2250 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 2251 | } |
sahilmgandhi | 18:6a4db94011d3 | 2252 | else |
sahilmgandhi | 18:6a4db94011d3 | 2253 | { |
sahilmgandhi | 18:6a4db94011d3 | 2254 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 2255 | } |
sahilmgandhi | 18:6a4db94011d3 | 2256 | } |
sahilmgandhi | 18:6a4db94011d3 | 2257 | |
sahilmgandhi | 18:6a4db94011d3 | 2258 | /** |
sahilmgandhi | 18:6a4db94011d3 | 2259 | * @brief Receive in slave mode an amount of data in no-blocking mode with DMA |
sahilmgandhi | 18:6a4db94011d3 | 2260 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 2261 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 2262 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 2263 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 2264 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 2265 | */ |
sahilmgandhi | 18:6a4db94011d3 | 2266 | HAL_StatusTypeDef HAL_I2C_Slave_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) |
sahilmgandhi | 18:6a4db94011d3 | 2267 | { |
sahilmgandhi | 18:6a4db94011d3 | 2268 | __IO uint32_t count = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 2269 | |
sahilmgandhi | 18:6a4db94011d3 | 2270 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 2271 | { |
sahilmgandhi | 18:6a4db94011d3 | 2272 | if((pData == NULL) || (Size == 0U)) |
sahilmgandhi | 18:6a4db94011d3 | 2273 | { |
sahilmgandhi | 18:6a4db94011d3 | 2274 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 2275 | } |
sahilmgandhi | 18:6a4db94011d3 | 2276 | |
sahilmgandhi | 18:6a4db94011d3 | 2277 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 2278 | count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 2279 | do |
sahilmgandhi | 18:6a4db94011d3 | 2280 | { |
sahilmgandhi | 18:6a4db94011d3 | 2281 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 2282 | { |
sahilmgandhi | 18:6a4db94011d3 | 2283 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2284 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 2285 | |
sahilmgandhi | 18:6a4db94011d3 | 2286 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2287 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2288 | |
sahilmgandhi | 18:6a4db94011d3 | 2289 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2290 | } |
sahilmgandhi | 18:6a4db94011d3 | 2291 | } |
sahilmgandhi | 18:6a4db94011d3 | 2292 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); |
sahilmgandhi | 18:6a4db94011d3 | 2293 | |
sahilmgandhi | 18:6a4db94011d3 | 2294 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 2295 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2296 | |
sahilmgandhi | 18:6a4db94011d3 | 2297 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 2298 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 2299 | |
sahilmgandhi | 18:6a4db94011d3 | 2300 | hi2c->State = HAL_I2C_STATE_BUSY_RX; |
sahilmgandhi | 18:6a4db94011d3 | 2301 | hi2c->Mode = HAL_I2C_MODE_SLAVE; |
sahilmgandhi | 18:6a4db94011d3 | 2302 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2303 | |
sahilmgandhi | 18:6a4db94011d3 | 2304 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 2305 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 2306 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 2307 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 2308 | |
sahilmgandhi | 18:6a4db94011d3 | 2309 | /* Set the I2C DMA transfer complete callback */ |
sahilmgandhi | 18:6a4db94011d3 | 2310 | hi2c->hdmarx->XferCpltCallback = I2C_DMAXferCplt; |
sahilmgandhi | 18:6a4db94011d3 | 2311 | |
sahilmgandhi | 18:6a4db94011d3 | 2312 | /* Set the DMA error callback */ |
sahilmgandhi | 18:6a4db94011d3 | 2313 | hi2c->hdmarx->XferErrorCallback = I2C_DMAError; |
sahilmgandhi | 18:6a4db94011d3 | 2314 | |
sahilmgandhi | 18:6a4db94011d3 | 2315 | /* Set the unused DMA callbacks to NULL */ |
sahilmgandhi | 18:6a4db94011d3 | 2316 | hi2c->hdmarx->XferHalfCpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 2317 | hi2c->hdmarx->XferM1CpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 2318 | hi2c->hdmarx->XferM1HalfCpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 2319 | hi2c->hdmarx->XferAbortCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 2320 | |
sahilmgandhi | 18:6a4db94011d3 | 2321 | /* Enable the DMA Stream */ |
sahilmgandhi | 18:6a4db94011d3 | 2322 | HAL_DMA_Start_IT(hi2c->hdmarx, (uint32_t)&hi2c->Instance->DR, (uint32_t)pData, Size); |
sahilmgandhi | 18:6a4db94011d3 | 2323 | |
sahilmgandhi | 18:6a4db94011d3 | 2324 | /* Enable ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 2325 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 2326 | |
sahilmgandhi | 18:6a4db94011d3 | 2327 | /* Enable DMA Request */ |
sahilmgandhi | 18:6a4db94011d3 | 2328 | hi2c->Instance->CR2 |= I2C_CR2_DMAEN; |
sahilmgandhi | 18:6a4db94011d3 | 2329 | |
sahilmgandhi | 18:6a4db94011d3 | 2330 | /* Enable Address Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 2331 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 2332 | |
sahilmgandhi | 18:6a4db94011d3 | 2333 | /* Wait until ADDR flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 2334 | count = I2C_TIMEOUT_ADDR_SLAVE * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 2335 | do |
sahilmgandhi | 18:6a4db94011d3 | 2336 | { |
sahilmgandhi | 18:6a4db94011d3 | 2337 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 2338 | { |
sahilmgandhi | 18:6a4db94011d3 | 2339 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2340 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 2341 | |
sahilmgandhi | 18:6a4db94011d3 | 2342 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2343 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2344 | |
sahilmgandhi | 18:6a4db94011d3 | 2345 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2346 | } |
sahilmgandhi | 18:6a4db94011d3 | 2347 | } |
sahilmgandhi | 18:6a4db94011d3 | 2348 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_ADDR) == RESET); |
sahilmgandhi | 18:6a4db94011d3 | 2349 | |
sahilmgandhi | 18:6a4db94011d3 | 2350 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 2351 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2352 | |
sahilmgandhi | 18:6a4db94011d3 | 2353 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2354 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2355 | |
sahilmgandhi | 18:6a4db94011d3 | 2356 | /* Note : The I2C interrupts must be enabled after unlocking current process |
sahilmgandhi | 18:6a4db94011d3 | 2357 | to avoid the risk of I2C interrupt handle execution before current |
sahilmgandhi | 18:6a4db94011d3 | 2358 | process unlock */ |
sahilmgandhi | 18:6a4db94011d3 | 2359 | /* Enable ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 2360 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 2361 | |
sahilmgandhi | 18:6a4db94011d3 | 2362 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 2363 | } |
sahilmgandhi | 18:6a4db94011d3 | 2364 | else |
sahilmgandhi | 18:6a4db94011d3 | 2365 | { |
sahilmgandhi | 18:6a4db94011d3 | 2366 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 2367 | } |
sahilmgandhi | 18:6a4db94011d3 | 2368 | } |
sahilmgandhi | 18:6a4db94011d3 | 2369 | /** |
sahilmgandhi | 18:6a4db94011d3 | 2370 | * @brief Write an amount of data in blocking mode to a specific memory address |
sahilmgandhi | 18:6a4db94011d3 | 2371 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 2372 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 2373 | * @param DevAddress Target device address |
sahilmgandhi | 18:6a4db94011d3 | 2374 | * @param MemAddress Internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 2375 | * @param MemAddSize Size of internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 2376 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 2377 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 2378 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 2379 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 2380 | */ |
sahilmgandhi | 18:6a4db94011d3 | 2381 | HAL_StatusTypeDef HAL_I2C_Mem_Write(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout) |
sahilmgandhi | 18:6a4db94011d3 | 2382 | { |
sahilmgandhi | 18:6a4db94011d3 | 2383 | uint32_t tickstart = 0x00U; |
sahilmgandhi | 18:6a4db94011d3 | 2384 | |
sahilmgandhi | 18:6a4db94011d3 | 2385 | /* Init tickstart for timeout management*/ |
sahilmgandhi | 18:6a4db94011d3 | 2386 | tickstart = HAL_GetTick(); |
sahilmgandhi | 18:6a4db94011d3 | 2387 | |
sahilmgandhi | 18:6a4db94011d3 | 2388 | /* Check the parameters */ |
sahilmgandhi | 18:6a4db94011d3 | 2389 | assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); |
sahilmgandhi | 18:6a4db94011d3 | 2390 | |
sahilmgandhi | 18:6a4db94011d3 | 2391 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 2392 | { |
sahilmgandhi | 18:6a4db94011d3 | 2393 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 2394 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 2395 | { |
sahilmgandhi | 18:6a4db94011d3 | 2396 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 2397 | } |
sahilmgandhi | 18:6a4db94011d3 | 2398 | |
sahilmgandhi | 18:6a4db94011d3 | 2399 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 2400 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2401 | |
sahilmgandhi | 18:6a4db94011d3 | 2402 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 2403 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 2404 | |
sahilmgandhi | 18:6a4db94011d3 | 2405 | hi2c->State = HAL_I2C_STATE_BUSY_TX; |
sahilmgandhi | 18:6a4db94011d3 | 2406 | hi2c->Mode = HAL_I2C_MODE_MEM; |
sahilmgandhi | 18:6a4db94011d3 | 2407 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2408 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 2409 | |
sahilmgandhi | 18:6a4db94011d3 | 2410 | /* Send Slave Address and Memory Address */ |
sahilmgandhi | 18:6a4db94011d3 | 2411 | if(I2C_RequestMemoryWrite(hi2c, DevAddress, MemAddress, MemAddSize, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 2412 | { |
sahilmgandhi | 18:6a4db94011d3 | 2413 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 2414 | { |
sahilmgandhi | 18:6a4db94011d3 | 2415 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2416 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2417 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 2418 | } |
sahilmgandhi | 18:6a4db94011d3 | 2419 | else |
sahilmgandhi | 18:6a4db94011d3 | 2420 | { |
sahilmgandhi | 18:6a4db94011d3 | 2421 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2422 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2423 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2424 | } |
sahilmgandhi | 18:6a4db94011d3 | 2425 | } |
sahilmgandhi | 18:6a4db94011d3 | 2426 | |
sahilmgandhi | 18:6a4db94011d3 | 2427 | while(Size > 0U) |
sahilmgandhi | 18:6a4db94011d3 | 2428 | { |
sahilmgandhi | 18:6a4db94011d3 | 2429 | /* Wait until TXE flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 2430 | if(I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 2431 | { |
sahilmgandhi | 18:6a4db94011d3 | 2432 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 2433 | { |
sahilmgandhi | 18:6a4db94011d3 | 2434 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 2435 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 2436 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 2437 | } |
sahilmgandhi | 18:6a4db94011d3 | 2438 | else |
sahilmgandhi | 18:6a4db94011d3 | 2439 | { |
sahilmgandhi | 18:6a4db94011d3 | 2440 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2441 | } |
sahilmgandhi | 18:6a4db94011d3 | 2442 | } |
sahilmgandhi | 18:6a4db94011d3 | 2443 | |
sahilmgandhi | 18:6a4db94011d3 | 2444 | /* Write data to DR */ |
sahilmgandhi | 18:6a4db94011d3 | 2445 | hi2c->Instance->DR = (*pData++); |
sahilmgandhi | 18:6a4db94011d3 | 2446 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 2447 | |
sahilmgandhi | 18:6a4db94011d3 | 2448 | if((__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BTF) == SET) && (Size != 0)) |
sahilmgandhi | 18:6a4db94011d3 | 2449 | { |
sahilmgandhi | 18:6a4db94011d3 | 2450 | /* Write data to DR */ |
sahilmgandhi | 18:6a4db94011d3 | 2451 | hi2c->Instance->DR = (*pData++); |
sahilmgandhi | 18:6a4db94011d3 | 2452 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 2453 | } |
sahilmgandhi | 18:6a4db94011d3 | 2454 | } |
sahilmgandhi | 18:6a4db94011d3 | 2455 | |
sahilmgandhi | 18:6a4db94011d3 | 2456 | /* Wait until BTF flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 2457 | if(I2C_WaitOnBTFFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 2458 | { |
sahilmgandhi | 18:6a4db94011d3 | 2459 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 2460 | { |
sahilmgandhi | 18:6a4db94011d3 | 2461 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 2462 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 2463 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 2464 | } |
sahilmgandhi | 18:6a4db94011d3 | 2465 | else |
sahilmgandhi | 18:6a4db94011d3 | 2466 | { |
sahilmgandhi | 18:6a4db94011d3 | 2467 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2468 | } |
sahilmgandhi | 18:6a4db94011d3 | 2469 | } |
sahilmgandhi | 18:6a4db94011d3 | 2470 | |
sahilmgandhi | 18:6a4db94011d3 | 2471 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 2472 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 2473 | |
sahilmgandhi | 18:6a4db94011d3 | 2474 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 2475 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2476 | |
sahilmgandhi | 18:6a4db94011d3 | 2477 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2478 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2479 | |
sahilmgandhi | 18:6a4db94011d3 | 2480 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 2481 | } |
sahilmgandhi | 18:6a4db94011d3 | 2482 | else |
sahilmgandhi | 18:6a4db94011d3 | 2483 | { |
sahilmgandhi | 18:6a4db94011d3 | 2484 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 2485 | } |
sahilmgandhi | 18:6a4db94011d3 | 2486 | } |
sahilmgandhi | 18:6a4db94011d3 | 2487 | |
sahilmgandhi | 18:6a4db94011d3 | 2488 | /** |
sahilmgandhi | 18:6a4db94011d3 | 2489 | * @brief Read an amount of data in blocking mode from a specific memory address |
sahilmgandhi | 18:6a4db94011d3 | 2490 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 2491 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 2492 | * @param DevAddress Target device address |
sahilmgandhi | 18:6a4db94011d3 | 2493 | * @param MemAddress Internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 2494 | * @param MemAddSize Size of internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 2495 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 2496 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 2497 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 2498 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 2499 | */ |
sahilmgandhi | 18:6a4db94011d3 | 2500 | HAL_StatusTypeDef HAL_I2C_Mem_Read(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout) |
sahilmgandhi | 18:6a4db94011d3 | 2501 | { |
sahilmgandhi | 18:6a4db94011d3 | 2502 | uint32_t tickstart = 0x00U; |
sahilmgandhi | 18:6a4db94011d3 | 2503 | |
sahilmgandhi | 18:6a4db94011d3 | 2504 | /* Init tickstart for timeout management*/ |
sahilmgandhi | 18:6a4db94011d3 | 2505 | tickstart = HAL_GetTick(); |
sahilmgandhi | 18:6a4db94011d3 | 2506 | |
sahilmgandhi | 18:6a4db94011d3 | 2507 | /* Check the parameters */ |
sahilmgandhi | 18:6a4db94011d3 | 2508 | assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); |
sahilmgandhi | 18:6a4db94011d3 | 2509 | |
sahilmgandhi | 18:6a4db94011d3 | 2510 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 2511 | { |
sahilmgandhi | 18:6a4db94011d3 | 2512 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 2513 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 2514 | { |
sahilmgandhi | 18:6a4db94011d3 | 2515 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 2516 | } |
sahilmgandhi | 18:6a4db94011d3 | 2517 | |
sahilmgandhi | 18:6a4db94011d3 | 2518 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 2519 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2520 | |
sahilmgandhi | 18:6a4db94011d3 | 2521 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 2522 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 2523 | |
sahilmgandhi | 18:6a4db94011d3 | 2524 | hi2c->State = HAL_I2C_STATE_BUSY_RX; |
sahilmgandhi | 18:6a4db94011d3 | 2525 | hi2c->Mode = HAL_I2C_MODE_MEM; |
sahilmgandhi | 18:6a4db94011d3 | 2526 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2527 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 2528 | |
sahilmgandhi | 18:6a4db94011d3 | 2529 | /* Send Slave Address and Memory Address */ |
sahilmgandhi | 18:6a4db94011d3 | 2530 | if(I2C_RequestMemoryRead(hi2c, DevAddress, MemAddress, MemAddSize, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 2531 | { |
sahilmgandhi | 18:6a4db94011d3 | 2532 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 2533 | { |
sahilmgandhi | 18:6a4db94011d3 | 2534 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2535 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2536 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 2537 | } |
sahilmgandhi | 18:6a4db94011d3 | 2538 | else |
sahilmgandhi | 18:6a4db94011d3 | 2539 | { |
sahilmgandhi | 18:6a4db94011d3 | 2540 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2541 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2542 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2543 | } |
sahilmgandhi | 18:6a4db94011d3 | 2544 | } |
sahilmgandhi | 18:6a4db94011d3 | 2545 | |
sahilmgandhi | 18:6a4db94011d3 | 2546 | if(Size == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 2547 | { |
sahilmgandhi | 18:6a4db94011d3 | 2548 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 2549 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2550 | |
sahilmgandhi | 18:6a4db94011d3 | 2551 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 2552 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 2553 | } |
sahilmgandhi | 18:6a4db94011d3 | 2554 | else if(Size == 1U) |
sahilmgandhi | 18:6a4db94011d3 | 2555 | { |
sahilmgandhi | 18:6a4db94011d3 | 2556 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 2557 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 2558 | |
sahilmgandhi | 18:6a4db94011d3 | 2559 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 2560 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2561 | |
sahilmgandhi | 18:6a4db94011d3 | 2562 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 2563 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 2564 | } |
sahilmgandhi | 18:6a4db94011d3 | 2565 | else if(Size == 2U) |
sahilmgandhi | 18:6a4db94011d3 | 2566 | { |
sahilmgandhi | 18:6a4db94011d3 | 2567 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 2568 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 2569 | |
sahilmgandhi | 18:6a4db94011d3 | 2570 | /* Enable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 2571 | hi2c->Instance->CR1 |= I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 2572 | |
sahilmgandhi | 18:6a4db94011d3 | 2573 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 2574 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2575 | } |
sahilmgandhi | 18:6a4db94011d3 | 2576 | else |
sahilmgandhi | 18:6a4db94011d3 | 2577 | { |
sahilmgandhi | 18:6a4db94011d3 | 2578 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 2579 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2580 | } |
sahilmgandhi | 18:6a4db94011d3 | 2581 | |
sahilmgandhi | 18:6a4db94011d3 | 2582 | while(Size > 0U) |
sahilmgandhi | 18:6a4db94011d3 | 2583 | { |
sahilmgandhi | 18:6a4db94011d3 | 2584 | if(Size <= 3U) |
sahilmgandhi | 18:6a4db94011d3 | 2585 | { |
sahilmgandhi | 18:6a4db94011d3 | 2586 | /* One byte */ |
sahilmgandhi | 18:6a4db94011d3 | 2587 | if(Size== 1U) |
sahilmgandhi | 18:6a4db94011d3 | 2588 | { |
sahilmgandhi | 18:6a4db94011d3 | 2589 | /* Wait until RXNE flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 2590 | if(I2C_WaitOnRXNEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 2591 | { |
sahilmgandhi | 18:6a4db94011d3 | 2592 | if(hi2c->ErrorCode == HAL_I2C_ERROR_TIMEOUT) |
sahilmgandhi | 18:6a4db94011d3 | 2593 | { |
sahilmgandhi | 18:6a4db94011d3 | 2594 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2595 | } |
sahilmgandhi | 18:6a4db94011d3 | 2596 | else |
sahilmgandhi | 18:6a4db94011d3 | 2597 | { |
sahilmgandhi | 18:6a4db94011d3 | 2598 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 2599 | } |
sahilmgandhi | 18:6a4db94011d3 | 2600 | } |
sahilmgandhi | 18:6a4db94011d3 | 2601 | |
sahilmgandhi | 18:6a4db94011d3 | 2602 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 2603 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 2604 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 2605 | } |
sahilmgandhi | 18:6a4db94011d3 | 2606 | /* Two bytes */ |
sahilmgandhi | 18:6a4db94011d3 | 2607 | else if(Size == 2U) |
sahilmgandhi | 18:6a4db94011d3 | 2608 | { |
sahilmgandhi | 18:6a4db94011d3 | 2609 | /* Wait until BTF flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 2610 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BTF, RESET, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 2611 | { |
sahilmgandhi | 18:6a4db94011d3 | 2612 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2613 | } |
sahilmgandhi | 18:6a4db94011d3 | 2614 | |
sahilmgandhi | 18:6a4db94011d3 | 2615 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 2616 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 2617 | |
sahilmgandhi | 18:6a4db94011d3 | 2618 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 2619 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 2620 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 2621 | |
sahilmgandhi | 18:6a4db94011d3 | 2622 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 2623 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 2624 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 2625 | } |
sahilmgandhi | 18:6a4db94011d3 | 2626 | /* 3 Last bytes */ |
sahilmgandhi | 18:6a4db94011d3 | 2627 | else |
sahilmgandhi | 18:6a4db94011d3 | 2628 | { |
sahilmgandhi | 18:6a4db94011d3 | 2629 | /* Wait until BTF flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 2630 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BTF, RESET, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 2631 | { |
sahilmgandhi | 18:6a4db94011d3 | 2632 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2633 | } |
sahilmgandhi | 18:6a4db94011d3 | 2634 | |
sahilmgandhi | 18:6a4db94011d3 | 2635 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 2636 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 2637 | |
sahilmgandhi | 18:6a4db94011d3 | 2638 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 2639 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 2640 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 2641 | |
sahilmgandhi | 18:6a4db94011d3 | 2642 | /* Wait until BTF flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 2643 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BTF, RESET, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 2644 | { |
sahilmgandhi | 18:6a4db94011d3 | 2645 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2646 | } |
sahilmgandhi | 18:6a4db94011d3 | 2647 | |
sahilmgandhi | 18:6a4db94011d3 | 2648 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 2649 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 2650 | |
sahilmgandhi | 18:6a4db94011d3 | 2651 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 2652 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 2653 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 2654 | |
sahilmgandhi | 18:6a4db94011d3 | 2655 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 2656 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 2657 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 2658 | } |
sahilmgandhi | 18:6a4db94011d3 | 2659 | } |
sahilmgandhi | 18:6a4db94011d3 | 2660 | else |
sahilmgandhi | 18:6a4db94011d3 | 2661 | { |
sahilmgandhi | 18:6a4db94011d3 | 2662 | /* Wait until RXNE flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 2663 | if(I2C_WaitOnRXNEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 2664 | { |
sahilmgandhi | 18:6a4db94011d3 | 2665 | if(hi2c->ErrorCode == HAL_I2C_ERROR_TIMEOUT) |
sahilmgandhi | 18:6a4db94011d3 | 2666 | { |
sahilmgandhi | 18:6a4db94011d3 | 2667 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2668 | } |
sahilmgandhi | 18:6a4db94011d3 | 2669 | else |
sahilmgandhi | 18:6a4db94011d3 | 2670 | { |
sahilmgandhi | 18:6a4db94011d3 | 2671 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 2672 | } |
sahilmgandhi | 18:6a4db94011d3 | 2673 | } |
sahilmgandhi | 18:6a4db94011d3 | 2674 | |
sahilmgandhi | 18:6a4db94011d3 | 2675 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 2676 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 2677 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 2678 | |
sahilmgandhi | 18:6a4db94011d3 | 2679 | if(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BTF) == SET) |
sahilmgandhi | 18:6a4db94011d3 | 2680 | { |
sahilmgandhi | 18:6a4db94011d3 | 2681 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 2682 | (*pData++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 2683 | Size--; |
sahilmgandhi | 18:6a4db94011d3 | 2684 | } |
sahilmgandhi | 18:6a4db94011d3 | 2685 | } |
sahilmgandhi | 18:6a4db94011d3 | 2686 | } |
sahilmgandhi | 18:6a4db94011d3 | 2687 | |
sahilmgandhi | 18:6a4db94011d3 | 2688 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 2689 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2690 | |
sahilmgandhi | 18:6a4db94011d3 | 2691 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2692 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2693 | |
sahilmgandhi | 18:6a4db94011d3 | 2694 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 2695 | } |
sahilmgandhi | 18:6a4db94011d3 | 2696 | else |
sahilmgandhi | 18:6a4db94011d3 | 2697 | { |
sahilmgandhi | 18:6a4db94011d3 | 2698 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 2699 | } |
sahilmgandhi | 18:6a4db94011d3 | 2700 | } |
sahilmgandhi | 18:6a4db94011d3 | 2701 | |
sahilmgandhi | 18:6a4db94011d3 | 2702 | /** |
sahilmgandhi | 18:6a4db94011d3 | 2703 | * @brief Write an amount of data in no-blocking mode with Interrupt to a specific memory address |
sahilmgandhi | 18:6a4db94011d3 | 2704 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 2705 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 2706 | * @param DevAddress Target device address |
sahilmgandhi | 18:6a4db94011d3 | 2707 | * @param MemAddress Internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 2708 | * @param MemAddSize Size of internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 2709 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 2710 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 2711 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 2712 | */ |
sahilmgandhi | 18:6a4db94011d3 | 2713 | HAL_StatusTypeDef HAL_I2C_Mem_Write_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size) |
sahilmgandhi | 18:6a4db94011d3 | 2714 | { |
sahilmgandhi | 18:6a4db94011d3 | 2715 | __IO uint32_t count = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 2716 | |
sahilmgandhi | 18:6a4db94011d3 | 2717 | /* Check the parameters */ |
sahilmgandhi | 18:6a4db94011d3 | 2718 | assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); |
sahilmgandhi | 18:6a4db94011d3 | 2719 | |
sahilmgandhi | 18:6a4db94011d3 | 2720 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 2721 | { |
sahilmgandhi | 18:6a4db94011d3 | 2722 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 2723 | count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 2724 | do |
sahilmgandhi | 18:6a4db94011d3 | 2725 | { |
sahilmgandhi | 18:6a4db94011d3 | 2726 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 2727 | { |
sahilmgandhi | 18:6a4db94011d3 | 2728 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2729 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 2730 | |
sahilmgandhi | 18:6a4db94011d3 | 2731 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2732 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2733 | |
sahilmgandhi | 18:6a4db94011d3 | 2734 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2735 | } |
sahilmgandhi | 18:6a4db94011d3 | 2736 | } |
sahilmgandhi | 18:6a4db94011d3 | 2737 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); |
sahilmgandhi | 18:6a4db94011d3 | 2738 | |
sahilmgandhi | 18:6a4db94011d3 | 2739 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 2740 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2741 | |
sahilmgandhi | 18:6a4db94011d3 | 2742 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 2743 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 2744 | |
sahilmgandhi | 18:6a4db94011d3 | 2745 | hi2c->State = HAL_I2C_STATE_BUSY_TX; |
sahilmgandhi | 18:6a4db94011d3 | 2746 | hi2c->Mode = HAL_I2C_MODE_MEM; |
sahilmgandhi | 18:6a4db94011d3 | 2747 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2748 | |
sahilmgandhi | 18:6a4db94011d3 | 2749 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 2750 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 2751 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 2752 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 2753 | hi2c->Devaddress = DevAddress; |
sahilmgandhi | 18:6a4db94011d3 | 2754 | hi2c->Memaddress = MemAddress; |
sahilmgandhi | 18:6a4db94011d3 | 2755 | hi2c->MemaddSize = MemAddSize; |
sahilmgandhi | 18:6a4db94011d3 | 2756 | hi2c->EventCount = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 2757 | |
sahilmgandhi | 18:6a4db94011d3 | 2758 | /* Generate Start */ |
sahilmgandhi | 18:6a4db94011d3 | 2759 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 2760 | |
sahilmgandhi | 18:6a4db94011d3 | 2761 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2762 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2763 | |
sahilmgandhi | 18:6a4db94011d3 | 2764 | /* Note : The I2C interrupts must be enabled after unlocking current process |
sahilmgandhi | 18:6a4db94011d3 | 2765 | to avoid the risk of I2C interrupt handle execution before current |
sahilmgandhi | 18:6a4db94011d3 | 2766 | process unlock */ |
sahilmgandhi | 18:6a4db94011d3 | 2767 | |
sahilmgandhi | 18:6a4db94011d3 | 2768 | /* Enable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 2769 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 2770 | |
sahilmgandhi | 18:6a4db94011d3 | 2771 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 2772 | } |
sahilmgandhi | 18:6a4db94011d3 | 2773 | else |
sahilmgandhi | 18:6a4db94011d3 | 2774 | { |
sahilmgandhi | 18:6a4db94011d3 | 2775 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 2776 | } |
sahilmgandhi | 18:6a4db94011d3 | 2777 | } |
sahilmgandhi | 18:6a4db94011d3 | 2778 | |
sahilmgandhi | 18:6a4db94011d3 | 2779 | /** |
sahilmgandhi | 18:6a4db94011d3 | 2780 | * @brief Read an amount of data in no-blocking mode with Interrupt from a specific memory address |
sahilmgandhi | 18:6a4db94011d3 | 2781 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 2782 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 2783 | * @param DevAddress Target device address |
sahilmgandhi | 18:6a4db94011d3 | 2784 | * @param MemAddress Internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 2785 | * @param MemAddSize Size of internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 2786 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 2787 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 2788 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 2789 | */ |
sahilmgandhi | 18:6a4db94011d3 | 2790 | HAL_StatusTypeDef HAL_I2C_Mem_Read_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size) |
sahilmgandhi | 18:6a4db94011d3 | 2791 | { |
sahilmgandhi | 18:6a4db94011d3 | 2792 | __IO uint32_t count = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 2793 | |
sahilmgandhi | 18:6a4db94011d3 | 2794 | /* Check the parameters */ |
sahilmgandhi | 18:6a4db94011d3 | 2795 | assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); |
sahilmgandhi | 18:6a4db94011d3 | 2796 | |
sahilmgandhi | 18:6a4db94011d3 | 2797 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 2798 | { |
sahilmgandhi | 18:6a4db94011d3 | 2799 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 2800 | count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 2801 | do |
sahilmgandhi | 18:6a4db94011d3 | 2802 | { |
sahilmgandhi | 18:6a4db94011d3 | 2803 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 2804 | { |
sahilmgandhi | 18:6a4db94011d3 | 2805 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2806 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 2807 | |
sahilmgandhi | 18:6a4db94011d3 | 2808 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2809 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2810 | |
sahilmgandhi | 18:6a4db94011d3 | 2811 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2812 | } |
sahilmgandhi | 18:6a4db94011d3 | 2813 | } |
sahilmgandhi | 18:6a4db94011d3 | 2814 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); |
sahilmgandhi | 18:6a4db94011d3 | 2815 | |
sahilmgandhi | 18:6a4db94011d3 | 2816 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 2817 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2818 | |
sahilmgandhi | 18:6a4db94011d3 | 2819 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 2820 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 2821 | |
sahilmgandhi | 18:6a4db94011d3 | 2822 | hi2c->State = HAL_I2C_STATE_BUSY_RX; |
sahilmgandhi | 18:6a4db94011d3 | 2823 | hi2c->Mode = HAL_I2C_MODE_MEM; |
sahilmgandhi | 18:6a4db94011d3 | 2824 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2825 | |
sahilmgandhi | 18:6a4db94011d3 | 2826 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 2827 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 2828 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 2829 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 2830 | hi2c->Devaddress = DevAddress; |
sahilmgandhi | 18:6a4db94011d3 | 2831 | hi2c->Memaddress = MemAddress; |
sahilmgandhi | 18:6a4db94011d3 | 2832 | hi2c->MemaddSize = MemAddSize; |
sahilmgandhi | 18:6a4db94011d3 | 2833 | hi2c->EventCount = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 2834 | |
sahilmgandhi | 18:6a4db94011d3 | 2835 | /* Enable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 2836 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 2837 | |
sahilmgandhi | 18:6a4db94011d3 | 2838 | /* Generate Start */ |
sahilmgandhi | 18:6a4db94011d3 | 2839 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 2840 | |
sahilmgandhi | 18:6a4db94011d3 | 2841 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2842 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2843 | |
sahilmgandhi | 18:6a4db94011d3 | 2844 | if(hi2c->XferSize > 0U) |
sahilmgandhi | 18:6a4db94011d3 | 2845 | { |
sahilmgandhi | 18:6a4db94011d3 | 2846 | /* Note : The I2C interrupts must be enabled after unlocking current process |
sahilmgandhi | 18:6a4db94011d3 | 2847 | to avoid the risk of I2C interrupt handle execution before current |
sahilmgandhi | 18:6a4db94011d3 | 2848 | process unlock */ |
sahilmgandhi | 18:6a4db94011d3 | 2849 | |
sahilmgandhi | 18:6a4db94011d3 | 2850 | /* Enable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 2851 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 2852 | } |
sahilmgandhi | 18:6a4db94011d3 | 2853 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 2854 | } |
sahilmgandhi | 18:6a4db94011d3 | 2855 | else |
sahilmgandhi | 18:6a4db94011d3 | 2856 | { |
sahilmgandhi | 18:6a4db94011d3 | 2857 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 2858 | } |
sahilmgandhi | 18:6a4db94011d3 | 2859 | } |
sahilmgandhi | 18:6a4db94011d3 | 2860 | |
sahilmgandhi | 18:6a4db94011d3 | 2861 | /** |
sahilmgandhi | 18:6a4db94011d3 | 2862 | * @brief Write an amount of data in no-blocking mode with DMA to a specific memory address |
sahilmgandhi | 18:6a4db94011d3 | 2863 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 2864 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 2865 | * @param DevAddress Target device address |
sahilmgandhi | 18:6a4db94011d3 | 2866 | * @param MemAddress Internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 2867 | * @param MemAddSize Size of internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 2868 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 2869 | * @param Size Amount of data to be sent |
sahilmgandhi | 18:6a4db94011d3 | 2870 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 2871 | */ |
sahilmgandhi | 18:6a4db94011d3 | 2872 | HAL_StatusTypeDef HAL_I2C_Mem_Write_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size) |
sahilmgandhi | 18:6a4db94011d3 | 2873 | { |
sahilmgandhi | 18:6a4db94011d3 | 2874 | uint32_t tickstart = 0x00U; |
sahilmgandhi | 18:6a4db94011d3 | 2875 | |
sahilmgandhi | 18:6a4db94011d3 | 2876 | /* Init tickstart for timeout management*/ |
sahilmgandhi | 18:6a4db94011d3 | 2877 | tickstart = HAL_GetTick(); |
sahilmgandhi | 18:6a4db94011d3 | 2878 | |
sahilmgandhi | 18:6a4db94011d3 | 2879 | __IO uint32_t count = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 2880 | |
sahilmgandhi | 18:6a4db94011d3 | 2881 | /* Check the parameters */ |
sahilmgandhi | 18:6a4db94011d3 | 2882 | assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); |
sahilmgandhi | 18:6a4db94011d3 | 2883 | |
sahilmgandhi | 18:6a4db94011d3 | 2884 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 2885 | { |
sahilmgandhi | 18:6a4db94011d3 | 2886 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 2887 | count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 2888 | do |
sahilmgandhi | 18:6a4db94011d3 | 2889 | { |
sahilmgandhi | 18:6a4db94011d3 | 2890 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 2891 | { |
sahilmgandhi | 18:6a4db94011d3 | 2892 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2893 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 2894 | |
sahilmgandhi | 18:6a4db94011d3 | 2895 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2896 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2897 | |
sahilmgandhi | 18:6a4db94011d3 | 2898 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2899 | } |
sahilmgandhi | 18:6a4db94011d3 | 2900 | } |
sahilmgandhi | 18:6a4db94011d3 | 2901 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); |
sahilmgandhi | 18:6a4db94011d3 | 2902 | |
sahilmgandhi | 18:6a4db94011d3 | 2903 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 2904 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2905 | |
sahilmgandhi | 18:6a4db94011d3 | 2906 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 2907 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 2908 | |
sahilmgandhi | 18:6a4db94011d3 | 2909 | hi2c->State = HAL_I2C_STATE_BUSY_TX; |
sahilmgandhi | 18:6a4db94011d3 | 2910 | hi2c->Mode = HAL_I2C_MODE_MEM; |
sahilmgandhi | 18:6a4db94011d3 | 2911 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 2912 | |
sahilmgandhi | 18:6a4db94011d3 | 2913 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 2914 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 2915 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 2916 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 2917 | |
sahilmgandhi | 18:6a4db94011d3 | 2918 | if(hi2c->XferSize > 0U) |
sahilmgandhi | 18:6a4db94011d3 | 2919 | { |
sahilmgandhi | 18:6a4db94011d3 | 2920 | /* Set the I2C DMA transfer complete callback */ |
sahilmgandhi | 18:6a4db94011d3 | 2921 | hi2c->hdmatx->XferCpltCallback = I2C_DMAXferCplt; |
sahilmgandhi | 18:6a4db94011d3 | 2922 | |
sahilmgandhi | 18:6a4db94011d3 | 2923 | /* Set the DMA error callback */ |
sahilmgandhi | 18:6a4db94011d3 | 2924 | hi2c->hdmatx->XferErrorCallback = I2C_DMAError; |
sahilmgandhi | 18:6a4db94011d3 | 2925 | |
sahilmgandhi | 18:6a4db94011d3 | 2926 | /* Set the unused DMA callbacks to NULL */ |
sahilmgandhi | 18:6a4db94011d3 | 2927 | hi2c->hdmatx->XferHalfCpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 2928 | hi2c->hdmatx->XferM1CpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 2929 | hi2c->hdmatx->XferM1HalfCpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 2930 | hi2c->hdmatx->XferAbortCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 2931 | |
sahilmgandhi | 18:6a4db94011d3 | 2932 | /* Enable the DMA Stream */ |
sahilmgandhi | 18:6a4db94011d3 | 2933 | HAL_DMA_Start_IT(hi2c->hdmatx, (uint32_t)pData, (uint32_t)&hi2c->Instance->DR, Size); |
sahilmgandhi | 18:6a4db94011d3 | 2934 | |
sahilmgandhi | 18:6a4db94011d3 | 2935 | /* Send Slave Address and Memory Address */ |
sahilmgandhi | 18:6a4db94011d3 | 2936 | if(I2C_RequestMemoryWrite(hi2c, DevAddress, MemAddress, MemAddSize, I2C_TIMEOUT_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 2937 | { |
sahilmgandhi | 18:6a4db94011d3 | 2938 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 2939 | { |
sahilmgandhi | 18:6a4db94011d3 | 2940 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2941 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2942 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 2943 | } |
sahilmgandhi | 18:6a4db94011d3 | 2944 | else |
sahilmgandhi | 18:6a4db94011d3 | 2945 | { |
sahilmgandhi | 18:6a4db94011d3 | 2946 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2947 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2948 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2949 | } |
sahilmgandhi | 18:6a4db94011d3 | 2950 | } |
sahilmgandhi | 18:6a4db94011d3 | 2951 | |
sahilmgandhi | 18:6a4db94011d3 | 2952 | /* Enable ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 2953 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 2954 | |
sahilmgandhi | 18:6a4db94011d3 | 2955 | /* Enable DMA Request */ |
sahilmgandhi | 18:6a4db94011d3 | 2956 | hi2c->Instance->CR2 |= I2C_CR2_DMAEN; |
sahilmgandhi | 18:6a4db94011d3 | 2957 | } |
sahilmgandhi | 18:6a4db94011d3 | 2958 | else |
sahilmgandhi | 18:6a4db94011d3 | 2959 | { |
sahilmgandhi | 18:6a4db94011d3 | 2960 | /* Send Slave Address and Memory Address */ |
sahilmgandhi | 18:6a4db94011d3 | 2961 | if(I2C_RequestMemoryRead(hi2c, DevAddress, MemAddress, MemAddSize, I2C_TIMEOUT_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 2962 | { |
sahilmgandhi | 18:6a4db94011d3 | 2963 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 2964 | { |
sahilmgandhi | 18:6a4db94011d3 | 2965 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2966 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2967 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 2968 | } |
sahilmgandhi | 18:6a4db94011d3 | 2969 | else |
sahilmgandhi | 18:6a4db94011d3 | 2970 | { |
sahilmgandhi | 18:6a4db94011d3 | 2971 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2972 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2973 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 2974 | } |
sahilmgandhi | 18:6a4db94011d3 | 2975 | } |
sahilmgandhi | 18:6a4db94011d3 | 2976 | |
sahilmgandhi | 18:6a4db94011d3 | 2977 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 2978 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 2979 | |
sahilmgandhi | 18:6a4db94011d3 | 2980 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 2981 | } |
sahilmgandhi | 18:6a4db94011d3 | 2982 | |
sahilmgandhi | 18:6a4db94011d3 | 2983 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 2984 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 2985 | |
sahilmgandhi | 18:6a4db94011d3 | 2986 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 2987 | } |
sahilmgandhi | 18:6a4db94011d3 | 2988 | else |
sahilmgandhi | 18:6a4db94011d3 | 2989 | { |
sahilmgandhi | 18:6a4db94011d3 | 2990 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 2991 | } |
sahilmgandhi | 18:6a4db94011d3 | 2992 | } |
sahilmgandhi | 18:6a4db94011d3 | 2993 | |
sahilmgandhi | 18:6a4db94011d3 | 2994 | /** |
sahilmgandhi | 18:6a4db94011d3 | 2995 | * @brief Reads an amount of data in no-blocking mode with DMA from a specific memory address. |
sahilmgandhi | 18:6a4db94011d3 | 2996 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 2997 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 2998 | * @param DevAddress Target device address |
sahilmgandhi | 18:6a4db94011d3 | 2999 | * @param MemAddress Internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 3000 | * @param MemAddSize Size of internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 3001 | * @param pData Pointer to data buffer |
sahilmgandhi | 18:6a4db94011d3 | 3002 | * @param Size Amount of data to be read |
sahilmgandhi | 18:6a4db94011d3 | 3003 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 3004 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3005 | HAL_StatusTypeDef HAL_I2C_Mem_Read_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size) |
sahilmgandhi | 18:6a4db94011d3 | 3006 | { |
sahilmgandhi | 18:6a4db94011d3 | 3007 | uint32_t tickstart = 0x00U; |
sahilmgandhi | 18:6a4db94011d3 | 3008 | |
sahilmgandhi | 18:6a4db94011d3 | 3009 | /* Init tickstart for timeout management*/ |
sahilmgandhi | 18:6a4db94011d3 | 3010 | tickstart = HAL_GetTick(); |
sahilmgandhi | 18:6a4db94011d3 | 3011 | |
sahilmgandhi | 18:6a4db94011d3 | 3012 | __IO uint32_t count = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 3013 | |
sahilmgandhi | 18:6a4db94011d3 | 3014 | /* Check the parameters */ |
sahilmgandhi | 18:6a4db94011d3 | 3015 | assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); |
sahilmgandhi | 18:6a4db94011d3 | 3016 | |
sahilmgandhi | 18:6a4db94011d3 | 3017 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 3018 | { |
sahilmgandhi | 18:6a4db94011d3 | 3019 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 3020 | count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock /25U /1000U); |
sahilmgandhi | 18:6a4db94011d3 | 3021 | do |
sahilmgandhi | 18:6a4db94011d3 | 3022 | { |
sahilmgandhi | 18:6a4db94011d3 | 3023 | if(count-- == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 3024 | { |
sahilmgandhi | 18:6a4db94011d3 | 3025 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3026 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 3027 | |
sahilmgandhi | 18:6a4db94011d3 | 3028 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 3029 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3030 | |
sahilmgandhi | 18:6a4db94011d3 | 3031 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 3032 | } |
sahilmgandhi | 18:6a4db94011d3 | 3033 | } |
sahilmgandhi | 18:6a4db94011d3 | 3034 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); |
sahilmgandhi | 18:6a4db94011d3 | 3035 | |
sahilmgandhi | 18:6a4db94011d3 | 3036 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 3037 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3038 | |
sahilmgandhi | 18:6a4db94011d3 | 3039 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 3040 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 3041 | |
sahilmgandhi | 18:6a4db94011d3 | 3042 | hi2c->State = HAL_I2C_STATE_BUSY_RX; |
sahilmgandhi | 18:6a4db94011d3 | 3043 | hi2c->Mode = HAL_I2C_MODE_MEM; |
sahilmgandhi | 18:6a4db94011d3 | 3044 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3045 | |
sahilmgandhi | 18:6a4db94011d3 | 3046 | hi2c->pBuffPtr = pData; |
sahilmgandhi | 18:6a4db94011d3 | 3047 | hi2c->XferSize = Size; |
sahilmgandhi | 18:6a4db94011d3 | 3048 | hi2c->XferCount = Size; |
sahilmgandhi | 18:6a4db94011d3 | 3049 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 3050 | |
sahilmgandhi | 18:6a4db94011d3 | 3051 | if(hi2c->XferSize > 0U) |
sahilmgandhi | 18:6a4db94011d3 | 3052 | { |
sahilmgandhi | 18:6a4db94011d3 | 3053 | /* Set the I2C DMA transfer complete callback */ |
sahilmgandhi | 18:6a4db94011d3 | 3054 | hi2c->hdmarx->XferCpltCallback = I2C_DMAXferCplt; |
sahilmgandhi | 18:6a4db94011d3 | 3055 | |
sahilmgandhi | 18:6a4db94011d3 | 3056 | /* Set the DMA error callback */ |
sahilmgandhi | 18:6a4db94011d3 | 3057 | hi2c->hdmarx->XferErrorCallback = I2C_DMAError; |
sahilmgandhi | 18:6a4db94011d3 | 3058 | |
sahilmgandhi | 18:6a4db94011d3 | 3059 | /* Set the unused DMA callbacks to NULL */ |
sahilmgandhi | 18:6a4db94011d3 | 3060 | hi2c->hdmarx->XferHalfCpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 3061 | hi2c->hdmarx->XferM1CpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 3062 | hi2c->hdmarx->XferM1HalfCpltCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 3063 | hi2c->hdmarx->XferAbortCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 3064 | |
sahilmgandhi | 18:6a4db94011d3 | 3065 | /* Enable the DMA Stream */ |
sahilmgandhi | 18:6a4db94011d3 | 3066 | HAL_DMA_Start_IT(hi2c->hdmarx, (uint32_t)&hi2c->Instance->DR, (uint32_t)pData, Size); |
sahilmgandhi | 18:6a4db94011d3 | 3067 | |
sahilmgandhi | 18:6a4db94011d3 | 3068 | /* Send Slave Address and Memory Address */ |
sahilmgandhi | 18:6a4db94011d3 | 3069 | if(I2C_RequestMemoryRead(hi2c, DevAddress, MemAddress, MemAddSize, I2C_TIMEOUT_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 3070 | { |
sahilmgandhi | 18:6a4db94011d3 | 3071 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 3072 | { |
sahilmgandhi | 18:6a4db94011d3 | 3073 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 3074 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3075 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 3076 | } |
sahilmgandhi | 18:6a4db94011d3 | 3077 | else |
sahilmgandhi | 18:6a4db94011d3 | 3078 | { |
sahilmgandhi | 18:6a4db94011d3 | 3079 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 3080 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3081 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 3082 | } |
sahilmgandhi | 18:6a4db94011d3 | 3083 | } |
sahilmgandhi | 18:6a4db94011d3 | 3084 | |
sahilmgandhi | 18:6a4db94011d3 | 3085 | if(Size == 1U) |
sahilmgandhi | 18:6a4db94011d3 | 3086 | { |
sahilmgandhi | 18:6a4db94011d3 | 3087 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 3088 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 3089 | } |
sahilmgandhi | 18:6a4db94011d3 | 3090 | else |
sahilmgandhi | 18:6a4db94011d3 | 3091 | { |
sahilmgandhi | 18:6a4db94011d3 | 3092 | /* Enable Last DMA bit */ |
sahilmgandhi | 18:6a4db94011d3 | 3093 | hi2c->Instance->CR2 |= I2C_CR2_LAST; |
sahilmgandhi | 18:6a4db94011d3 | 3094 | } |
sahilmgandhi | 18:6a4db94011d3 | 3095 | |
sahilmgandhi | 18:6a4db94011d3 | 3096 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 3097 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3098 | |
sahilmgandhi | 18:6a4db94011d3 | 3099 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 3100 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3101 | |
sahilmgandhi | 18:6a4db94011d3 | 3102 | /* Note : The I2C interrupts must be enabled after unlocking current process |
sahilmgandhi | 18:6a4db94011d3 | 3103 | to avoid the risk of I2C interrupt handle execution before current |
sahilmgandhi | 18:6a4db94011d3 | 3104 | process unlock */ |
sahilmgandhi | 18:6a4db94011d3 | 3105 | /* Enable ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 3106 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 3107 | |
sahilmgandhi | 18:6a4db94011d3 | 3108 | /* Enable DMA Request */ |
sahilmgandhi | 18:6a4db94011d3 | 3109 | hi2c->Instance->CR2 |= I2C_CR2_DMAEN; |
sahilmgandhi | 18:6a4db94011d3 | 3110 | } |
sahilmgandhi | 18:6a4db94011d3 | 3111 | else |
sahilmgandhi | 18:6a4db94011d3 | 3112 | { |
sahilmgandhi | 18:6a4db94011d3 | 3113 | /* Send Slave Address and Memory Address */ |
sahilmgandhi | 18:6a4db94011d3 | 3114 | if(I2C_RequestMemoryRead(hi2c, DevAddress, MemAddress, MemAddSize, I2C_TIMEOUT_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 3115 | { |
sahilmgandhi | 18:6a4db94011d3 | 3116 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 3117 | { |
sahilmgandhi | 18:6a4db94011d3 | 3118 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 3119 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3120 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 3121 | } |
sahilmgandhi | 18:6a4db94011d3 | 3122 | else |
sahilmgandhi | 18:6a4db94011d3 | 3123 | { |
sahilmgandhi | 18:6a4db94011d3 | 3124 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 3125 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3126 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 3127 | } |
sahilmgandhi | 18:6a4db94011d3 | 3128 | } |
sahilmgandhi | 18:6a4db94011d3 | 3129 | |
sahilmgandhi | 18:6a4db94011d3 | 3130 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 3131 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3132 | |
sahilmgandhi | 18:6a4db94011d3 | 3133 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 3134 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 3135 | |
sahilmgandhi | 18:6a4db94011d3 | 3136 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 3137 | |
sahilmgandhi | 18:6a4db94011d3 | 3138 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 3139 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3140 | } |
sahilmgandhi | 18:6a4db94011d3 | 3141 | |
sahilmgandhi | 18:6a4db94011d3 | 3142 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 3143 | } |
sahilmgandhi | 18:6a4db94011d3 | 3144 | else |
sahilmgandhi | 18:6a4db94011d3 | 3145 | { |
sahilmgandhi | 18:6a4db94011d3 | 3146 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 3147 | } |
sahilmgandhi | 18:6a4db94011d3 | 3148 | } |
sahilmgandhi | 18:6a4db94011d3 | 3149 | |
sahilmgandhi | 18:6a4db94011d3 | 3150 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3151 | * @brief Checks if target device is ready for communication. |
sahilmgandhi | 18:6a4db94011d3 | 3152 | * @note This function is used with Memory devices |
sahilmgandhi | 18:6a4db94011d3 | 3153 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3154 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3155 | * @param DevAddress Target device address |
sahilmgandhi | 18:6a4db94011d3 | 3156 | * @param Trials Number of trials |
sahilmgandhi | 18:6a4db94011d3 | 3157 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 3158 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 3159 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3160 | HAL_StatusTypeDef HAL_I2C_IsDeviceReady(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Trials, uint32_t Timeout) |
sahilmgandhi | 18:6a4db94011d3 | 3161 | { |
sahilmgandhi | 18:6a4db94011d3 | 3162 | uint32_t tickstart = 0U, tmp1 = 0U, tmp2 = 0U, tmp3 = 0U, I2C_Trials = 1U; |
sahilmgandhi | 18:6a4db94011d3 | 3163 | |
sahilmgandhi | 18:6a4db94011d3 | 3164 | /* Get tick */ |
sahilmgandhi | 18:6a4db94011d3 | 3165 | tickstart = HAL_GetTick(); |
sahilmgandhi | 18:6a4db94011d3 | 3166 | |
sahilmgandhi | 18:6a4db94011d3 | 3167 | if(hi2c->State == HAL_I2C_STATE_READY) |
sahilmgandhi | 18:6a4db94011d3 | 3168 | { |
sahilmgandhi | 18:6a4db94011d3 | 3169 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 3170 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 3171 | { |
sahilmgandhi | 18:6a4db94011d3 | 3172 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 3173 | } |
sahilmgandhi | 18:6a4db94011d3 | 3174 | |
sahilmgandhi | 18:6a4db94011d3 | 3175 | /* Process Locked */ |
sahilmgandhi | 18:6a4db94011d3 | 3176 | __HAL_LOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3177 | |
sahilmgandhi | 18:6a4db94011d3 | 3178 | /* Disable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 3179 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 3180 | |
sahilmgandhi | 18:6a4db94011d3 | 3181 | hi2c->State = HAL_I2C_STATE_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 3182 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3183 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 3184 | |
sahilmgandhi | 18:6a4db94011d3 | 3185 | do |
sahilmgandhi | 18:6a4db94011d3 | 3186 | { |
sahilmgandhi | 18:6a4db94011d3 | 3187 | /* Generate Start */ |
sahilmgandhi | 18:6a4db94011d3 | 3188 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 3189 | |
sahilmgandhi | 18:6a4db94011d3 | 3190 | /* Wait until SB flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 3191 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_SB, RESET, Timeout, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 3192 | { |
sahilmgandhi | 18:6a4db94011d3 | 3193 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 3194 | } |
sahilmgandhi | 18:6a4db94011d3 | 3195 | |
sahilmgandhi | 18:6a4db94011d3 | 3196 | /* Send slave address */ |
sahilmgandhi | 18:6a4db94011d3 | 3197 | hi2c->Instance->DR = I2C_7BIT_ADD_WRITE(DevAddress); |
sahilmgandhi | 18:6a4db94011d3 | 3198 | |
sahilmgandhi | 18:6a4db94011d3 | 3199 | /* Wait until ADDR or AF flag are set */ |
sahilmgandhi | 18:6a4db94011d3 | 3200 | /* Get tick */ |
sahilmgandhi | 18:6a4db94011d3 | 3201 | tickstart = HAL_GetTick(); |
sahilmgandhi | 18:6a4db94011d3 | 3202 | |
sahilmgandhi | 18:6a4db94011d3 | 3203 | tmp1 = __HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_ADDR); |
sahilmgandhi | 18:6a4db94011d3 | 3204 | tmp2 = __HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_AF); |
sahilmgandhi | 18:6a4db94011d3 | 3205 | tmp3 = hi2c->State; |
sahilmgandhi | 18:6a4db94011d3 | 3206 | while((tmp1 == RESET) && (tmp2 == RESET) && (tmp3 != HAL_I2C_STATE_TIMEOUT)) |
sahilmgandhi | 18:6a4db94011d3 | 3207 | { |
sahilmgandhi | 18:6a4db94011d3 | 3208 | if((Timeout == 0U)||((HAL_GetTick() - tickstart ) > Timeout)) |
sahilmgandhi | 18:6a4db94011d3 | 3209 | { |
sahilmgandhi | 18:6a4db94011d3 | 3210 | hi2c->State = HAL_I2C_STATE_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 3211 | } |
sahilmgandhi | 18:6a4db94011d3 | 3212 | tmp1 = __HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_ADDR); |
sahilmgandhi | 18:6a4db94011d3 | 3213 | tmp2 = __HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_AF); |
sahilmgandhi | 18:6a4db94011d3 | 3214 | tmp3 = hi2c->State; |
sahilmgandhi | 18:6a4db94011d3 | 3215 | } |
sahilmgandhi | 18:6a4db94011d3 | 3216 | |
sahilmgandhi | 18:6a4db94011d3 | 3217 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 3218 | |
sahilmgandhi | 18:6a4db94011d3 | 3219 | /* Check if the ADDR flag has been set */ |
sahilmgandhi | 18:6a4db94011d3 | 3220 | if(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_ADDR) == SET) |
sahilmgandhi | 18:6a4db94011d3 | 3221 | { |
sahilmgandhi | 18:6a4db94011d3 | 3222 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 3223 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 3224 | |
sahilmgandhi | 18:6a4db94011d3 | 3225 | /* Clear ADDR Flag */ |
sahilmgandhi | 18:6a4db94011d3 | 3226 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3227 | |
sahilmgandhi | 18:6a4db94011d3 | 3228 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 3229 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 3230 | { |
sahilmgandhi | 18:6a4db94011d3 | 3231 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 3232 | } |
sahilmgandhi | 18:6a4db94011d3 | 3233 | |
sahilmgandhi | 18:6a4db94011d3 | 3234 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 3235 | |
sahilmgandhi | 18:6a4db94011d3 | 3236 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 3237 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3238 | |
sahilmgandhi | 18:6a4db94011d3 | 3239 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 3240 | } |
sahilmgandhi | 18:6a4db94011d3 | 3241 | else |
sahilmgandhi | 18:6a4db94011d3 | 3242 | { |
sahilmgandhi | 18:6a4db94011d3 | 3243 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 3244 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 3245 | |
sahilmgandhi | 18:6a4db94011d3 | 3246 | /* Clear AF Flag */ |
sahilmgandhi | 18:6a4db94011d3 | 3247 | __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); |
sahilmgandhi | 18:6a4db94011d3 | 3248 | |
sahilmgandhi | 18:6a4db94011d3 | 3249 | /* Wait until BUSY flag is reset */ |
sahilmgandhi | 18:6a4db94011d3 | 3250 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 3251 | { |
sahilmgandhi | 18:6a4db94011d3 | 3252 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 3253 | } |
sahilmgandhi | 18:6a4db94011d3 | 3254 | } |
sahilmgandhi | 18:6a4db94011d3 | 3255 | }while(I2C_Trials++ < Trials); |
sahilmgandhi | 18:6a4db94011d3 | 3256 | |
sahilmgandhi | 18:6a4db94011d3 | 3257 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 3258 | |
sahilmgandhi | 18:6a4db94011d3 | 3259 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 3260 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3261 | |
sahilmgandhi | 18:6a4db94011d3 | 3262 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 3263 | } |
sahilmgandhi | 18:6a4db94011d3 | 3264 | else |
sahilmgandhi | 18:6a4db94011d3 | 3265 | { |
sahilmgandhi | 18:6a4db94011d3 | 3266 | return HAL_BUSY; |
sahilmgandhi | 18:6a4db94011d3 | 3267 | } |
sahilmgandhi | 18:6a4db94011d3 | 3268 | } |
sahilmgandhi | 18:6a4db94011d3 | 3269 | |
sahilmgandhi | 18:6a4db94011d3 | 3270 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3271 | * @brief This function handles I2C event interrupt request. |
sahilmgandhi | 18:6a4db94011d3 | 3272 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3273 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3274 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 3275 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3276 | void HAL_I2C_EV_IRQHandler(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3277 | { |
sahilmgandhi | 18:6a4db94011d3 | 3278 | uint32_t sr2itflags = READ_REG(hi2c->Instance->SR2); |
sahilmgandhi | 18:6a4db94011d3 | 3279 | uint32_t sr1itflags = READ_REG(hi2c->Instance->SR1); |
sahilmgandhi | 18:6a4db94011d3 | 3280 | uint32_t itsources = READ_REG(hi2c->Instance->CR2); |
sahilmgandhi | 18:6a4db94011d3 | 3281 | |
sahilmgandhi | 18:6a4db94011d3 | 3282 | uint32_t CurrentMode = hi2c->Mode; |
sahilmgandhi | 18:6a4db94011d3 | 3283 | |
sahilmgandhi | 18:6a4db94011d3 | 3284 | /* Master or Memory mode selected */ |
sahilmgandhi | 18:6a4db94011d3 | 3285 | if((CurrentMode == HAL_I2C_MODE_MASTER) || (CurrentMode == HAL_I2C_MODE_MEM)) |
sahilmgandhi | 18:6a4db94011d3 | 3286 | { |
sahilmgandhi | 18:6a4db94011d3 | 3287 | /* SB Set ----------------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3288 | if(((sr1itflags & I2C_FLAG_SB) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3289 | { |
sahilmgandhi | 18:6a4db94011d3 | 3290 | I2C_Master_SB(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3291 | } |
sahilmgandhi | 18:6a4db94011d3 | 3292 | /* ADD10 Set -------------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3293 | else if(((sr1itflags & I2C_FLAG_ADD10) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3294 | { |
sahilmgandhi | 18:6a4db94011d3 | 3295 | I2C_Master_ADD10(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3296 | } |
sahilmgandhi | 18:6a4db94011d3 | 3297 | /* ADDR Set --------------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3298 | else if(((sr1itflags & I2C_FLAG_ADDR) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3299 | { |
sahilmgandhi | 18:6a4db94011d3 | 3300 | I2C_Master_ADDR(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3301 | } |
sahilmgandhi | 18:6a4db94011d3 | 3302 | |
sahilmgandhi | 18:6a4db94011d3 | 3303 | /* I2C in mode Transmitter -----------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3304 | if((sr2itflags & I2C_FLAG_TRA) != RESET) |
sahilmgandhi | 18:6a4db94011d3 | 3305 | { |
sahilmgandhi | 18:6a4db94011d3 | 3306 | /* TXE set and BTF reset -----------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3307 | if(((sr1itflags & I2C_FLAG_TXE) != RESET) && ((itsources & I2C_IT_BUF) != RESET) && ((sr1itflags & I2C_FLAG_BTF) == RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3308 | { |
sahilmgandhi | 18:6a4db94011d3 | 3309 | I2C_MasterTransmit_TXE(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3310 | } |
sahilmgandhi | 18:6a4db94011d3 | 3311 | /* BTF set -------------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3312 | else if(((sr1itflags & I2C_FLAG_BTF) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3313 | { |
sahilmgandhi | 18:6a4db94011d3 | 3314 | I2C_MasterTransmit_BTF(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3315 | } |
sahilmgandhi | 18:6a4db94011d3 | 3316 | } |
sahilmgandhi | 18:6a4db94011d3 | 3317 | /* I2C in mode Receiver --------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3318 | else |
sahilmgandhi | 18:6a4db94011d3 | 3319 | { |
sahilmgandhi | 18:6a4db94011d3 | 3320 | /* RXNE set and BTF reset -----------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3321 | if(((sr1itflags & I2C_FLAG_RXNE) != RESET) && ((itsources & I2C_IT_BUF) != RESET) && ((sr1itflags & I2C_FLAG_BTF) == RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3322 | { |
sahilmgandhi | 18:6a4db94011d3 | 3323 | I2C_MasterReceive_RXNE(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3324 | } |
sahilmgandhi | 18:6a4db94011d3 | 3325 | /* BTF set -------------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3326 | else if(((sr1itflags & I2C_FLAG_BTF) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3327 | { |
sahilmgandhi | 18:6a4db94011d3 | 3328 | I2C_MasterReceive_BTF(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3329 | } |
sahilmgandhi | 18:6a4db94011d3 | 3330 | } |
sahilmgandhi | 18:6a4db94011d3 | 3331 | } |
sahilmgandhi | 18:6a4db94011d3 | 3332 | /* Slave mode selected */ |
sahilmgandhi | 18:6a4db94011d3 | 3333 | else |
sahilmgandhi | 18:6a4db94011d3 | 3334 | { |
sahilmgandhi | 18:6a4db94011d3 | 3335 | /* ADDR set --------------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3336 | if(((sr1itflags & I2C_FLAG_ADDR) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3337 | { |
sahilmgandhi | 18:6a4db94011d3 | 3338 | I2C_Slave_ADDR(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3339 | } |
sahilmgandhi | 18:6a4db94011d3 | 3340 | /* STOPF set --------------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3341 | else if(((sr1itflags & I2C_FLAG_STOPF) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3342 | { |
sahilmgandhi | 18:6a4db94011d3 | 3343 | I2C_Slave_STOPF(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3344 | } |
sahilmgandhi | 18:6a4db94011d3 | 3345 | /* I2C in mode Transmitter -----------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3346 | else if((sr2itflags & I2C_FLAG_TRA) != RESET) |
sahilmgandhi | 18:6a4db94011d3 | 3347 | { |
sahilmgandhi | 18:6a4db94011d3 | 3348 | /* TXE set and BTF reset -----------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3349 | if(((sr1itflags & I2C_FLAG_TXE) != RESET) && ((itsources & I2C_IT_BUF) != RESET) && ((sr1itflags & I2C_FLAG_BTF) == RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3350 | { |
sahilmgandhi | 18:6a4db94011d3 | 3351 | I2C_SlaveTransmit_TXE(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3352 | } |
sahilmgandhi | 18:6a4db94011d3 | 3353 | /* BTF set -------------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3354 | else if(((sr1itflags & I2C_FLAG_BTF) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3355 | { |
sahilmgandhi | 18:6a4db94011d3 | 3356 | I2C_SlaveTransmit_BTF(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3357 | } |
sahilmgandhi | 18:6a4db94011d3 | 3358 | } |
sahilmgandhi | 18:6a4db94011d3 | 3359 | /* I2C in mode Receiver --------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3360 | else |
sahilmgandhi | 18:6a4db94011d3 | 3361 | { |
sahilmgandhi | 18:6a4db94011d3 | 3362 | /* RXNE set and BTF reset ----------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3363 | if(((sr1itflags & I2C_FLAG_RXNE) != RESET) && ((itsources & I2C_IT_BUF) != RESET) && ((sr1itflags & I2C_FLAG_BTF) == RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3364 | { |
sahilmgandhi | 18:6a4db94011d3 | 3365 | I2C_SlaveReceive_RXNE(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3366 | } |
sahilmgandhi | 18:6a4db94011d3 | 3367 | /* BTF set -------------------------------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3368 | else if(((sr1itflags & I2C_FLAG_BTF) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3369 | { |
sahilmgandhi | 18:6a4db94011d3 | 3370 | I2C_SlaveReceive_BTF(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3371 | } |
sahilmgandhi | 18:6a4db94011d3 | 3372 | } |
sahilmgandhi | 18:6a4db94011d3 | 3373 | } |
sahilmgandhi | 18:6a4db94011d3 | 3374 | } |
sahilmgandhi | 18:6a4db94011d3 | 3375 | |
sahilmgandhi | 18:6a4db94011d3 | 3376 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3377 | * @brief This function handles I2C error interrupt request. |
sahilmgandhi | 18:6a4db94011d3 | 3378 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3379 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3380 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 3381 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3382 | void HAL_I2C_ER_IRQHandler(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3383 | { |
sahilmgandhi | 18:6a4db94011d3 | 3384 | uint32_t tmp1 = 0U, tmp2 = 0U, tmp3 = 0U, tmp4 = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 3385 | uint32_t sr1itflags = READ_REG(hi2c->Instance->SR1); |
sahilmgandhi | 18:6a4db94011d3 | 3386 | uint32_t itsources = READ_REG(hi2c->Instance->CR2); |
sahilmgandhi | 18:6a4db94011d3 | 3387 | |
sahilmgandhi | 18:6a4db94011d3 | 3388 | /* I2C Bus error interrupt occurred ----------------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3389 | if(((sr1itflags & I2C_FLAG_BERR) != RESET) && ((itsources & I2C_IT_ERR) != RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3390 | { |
sahilmgandhi | 18:6a4db94011d3 | 3391 | hi2c->ErrorCode |= HAL_I2C_ERROR_BERR; |
sahilmgandhi | 18:6a4db94011d3 | 3392 | |
sahilmgandhi | 18:6a4db94011d3 | 3393 | /* Clear BERR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 3394 | __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_BERR); |
sahilmgandhi | 18:6a4db94011d3 | 3395 | } |
sahilmgandhi | 18:6a4db94011d3 | 3396 | |
sahilmgandhi | 18:6a4db94011d3 | 3397 | /* I2C Arbitration Loss error interrupt occurred ---------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3398 | if(((sr1itflags & I2C_FLAG_ARLO) != RESET) && ((itsources & I2C_IT_ERR) != RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3399 | { |
sahilmgandhi | 18:6a4db94011d3 | 3400 | hi2c->ErrorCode |= HAL_I2C_ERROR_ARLO; |
sahilmgandhi | 18:6a4db94011d3 | 3401 | |
sahilmgandhi | 18:6a4db94011d3 | 3402 | /* Clear ARLO flag */ |
sahilmgandhi | 18:6a4db94011d3 | 3403 | __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_ARLO); |
sahilmgandhi | 18:6a4db94011d3 | 3404 | } |
sahilmgandhi | 18:6a4db94011d3 | 3405 | |
sahilmgandhi | 18:6a4db94011d3 | 3406 | /* I2C Acknowledge failure error interrupt occurred ------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3407 | if(((sr1itflags & I2C_FLAG_AF) != RESET) && ((itsources & I2C_IT_ERR) != RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3408 | { |
sahilmgandhi | 18:6a4db94011d3 | 3409 | tmp1 = hi2c->Mode; |
sahilmgandhi | 18:6a4db94011d3 | 3410 | tmp2 = hi2c->XferCount; |
sahilmgandhi | 18:6a4db94011d3 | 3411 | tmp3 = hi2c->State; |
sahilmgandhi | 18:6a4db94011d3 | 3412 | tmp4 = hi2c->PreviousState; |
sahilmgandhi | 18:6a4db94011d3 | 3413 | if((tmp1 == HAL_I2C_MODE_SLAVE) && (tmp2 == 0U) && \ |
sahilmgandhi | 18:6a4db94011d3 | 3414 | ((tmp3 == HAL_I2C_STATE_BUSY_TX) || (tmp3 == HAL_I2C_STATE_BUSY_TX_LISTEN) || \ |
sahilmgandhi | 18:6a4db94011d3 | 3415 | ((tmp3 == HAL_I2C_STATE_LISTEN) && (tmp4 == I2C_STATE_SLAVE_BUSY_TX)))) |
sahilmgandhi | 18:6a4db94011d3 | 3416 | { |
sahilmgandhi | 18:6a4db94011d3 | 3417 | I2C_Slave_AF(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3418 | } |
sahilmgandhi | 18:6a4db94011d3 | 3419 | else |
sahilmgandhi | 18:6a4db94011d3 | 3420 | { |
sahilmgandhi | 18:6a4db94011d3 | 3421 | hi2c->ErrorCode |= HAL_I2C_ERROR_AF; |
sahilmgandhi | 18:6a4db94011d3 | 3422 | |
sahilmgandhi | 18:6a4db94011d3 | 3423 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 3424 | SET_BIT(hi2c->Instance->CR1,I2C_CR1_STOP); |
sahilmgandhi | 18:6a4db94011d3 | 3425 | |
sahilmgandhi | 18:6a4db94011d3 | 3426 | /* Clear AF flag */ |
sahilmgandhi | 18:6a4db94011d3 | 3427 | __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); |
sahilmgandhi | 18:6a4db94011d3 | 3428 | |
sahilmgandhi | 18:6a4db94011d3 | 3429 | } |
sahilmgandhi | 18:6a4db94011d3 | 3430 | } |
sahilmgandhi | 18:6a4db94011d3 | 3431 | |
sahilmgandhi | 18:6a4db94011d3 | 3432 | /* I2C Over-Run/Under-Run interrupt occurred -------------------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3433 | if(((sr1itflags & I2C_FLAG_OVR) != RESET) && ((itsources & I2C_IT_ERR) != RESET)) |
sahilmgandhi | 18:6a4db94011d3 | 3434 | { |
sahilmgandhi | 18:6a4db94011d3 | 3435 | hi2c->ErrorCode |= HAL_I2C_ERROR_OVR; |
sahilmgandhi | 18:6a4db94011d3 | 3436 | /* Clear OVR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 3437 | __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_OVR); |
sahilmgandhi | 18:6a4db94011d3 | 3438 | } |
sahilmgandhi | 18:6a4db94011d3 | 3439 | |
sahilmgandhi | 18:6a4db94011d3 | 3440 | /* Call the Error Callback in case of Error detected -----------------------*/ |
sahilmgandhi | 18:6a4db94011d3 | 3441 | if(hi2c->ErrorCode != HAL_I2C_ERROR_NONE) |
sahilmgandhi | 18:6a4db94011d3 | 3442 | { |
sahilmgandhi | 18:6a4db94011d3 | 3443 | I2C_ITError(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3444 | } |
sahilmgandhi | 18:6a4db94011d3 | 3445 | } |
sahilmgandhi | 18:6a4db94011d3 | 3446 | |
sahilmgandhi | 18:6a4db94011d3 | 3447 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3448 | * @brief Master Tx Transfer completed callbacks. |
sahilmgandhi | 18:6a4db94011d3 | 3449 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3450 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3451 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 3452 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3453 | __weak void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3454 | { |
sahilmgandhi | 18:6a4db94011d3 | 3455 | /* Prevent unused argument(s) compilation warning */ |
sahilmgandhi | 18:6a4db94011d3 | 3456 | UNUSED(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3457 | /* NOTE : This function should not be modified, when the callback is needed, |
sahilmgandhi | 18:6a4db94011d3 | 3458 | the HAL_I2C_MasterTxCpltCallback can be implemented in the user file |
sahilmgandhi | 18:6a4db94011d3 | 3459 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3460 | } |
sahilmgandhi | 18:6a4db94011d3 | 3461 | |
sahilmgandhi | 18:6a4db94011d3 | 3462 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3463 | * @brief Master Rx Transfer completed callbacks. |
sahilmgandhi | 18:6a4db94011d3 | 3464 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3465 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3466 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 3467 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3468 | __weak void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3469 | { |
sahilmgandhi | 18:6a4db94011d3 | 3470 | /* Prevent unused argument(s) compilation warning */ |
sahilmgandhi | 18:6a4db94011d3 | 3471 | UNUSED(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3472 | /* NOTE : This function should not be modified, when the callback is needed, |
sahilmgandhi | 18:6a4db94011d3 | 3473 | the HAL_I2C_MasterRxCpltCallback can be implemented in the user file |
sahilmgandhi | 18:6a4db94011d3 | 3474 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3475 | } |
sahilmgandhi | 18:6a4db94011d3 | 3476 | |
sahilmgandhi | 18:6a4db94011d3 | 3477 | /** @brief Slave Tx Transfer completed callbacks. |
sahilmgandhi | 18:6a4db94011d3 | 3478 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3479 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3480 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 3481 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3482 | __weak void HAL_I2C_SlaveTxCpltCallback(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3483 | { |
sahilmgandhi | 18:6a4db94011d3 | 3484 | /* Prevent unused argument(s) compilation warning */ |
sahilmgandhi | 18:6a4db94011d3 | 3485 | UNUSED(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3486 | /* NOTE : This function should not be modified, when the callback is needed, |
sahilmgandhi | 18:6a4db94011d3 | 3487 | the HAL_I2C_SlaveTxCpltCallback can be implemented in the user file |
sahilmgandhi | 18:6a4db94011d3 | 3488 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3489 | } |
sahilmgandhi | 18:6a4db94011d3 | 3490 | |
sahilmgandhi | 18:6a4db94011d3 | 3491 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3492 | * @brief Slave Rx Transfer completed callbacks. |
sahilmgandhi | 18:6a4db94011d3 | 3493 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3494 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3495 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 3496 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3497 | __weak void HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3498 | { |
sahilmgandhi | 18:6a4db94011d3 | 3499 | /* Prevent unused argument(s) compilation warning */ |
sahilmgandhi | 18:6a4db94011d3 | 3500 | UNUSED(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3501 | /* NOTE : This function should not be modified, when the callback is needed, |
sahilmgandhi | 18:6a4db94011d3 | 3502 | the HAL_I2C_SlaveRxCpltCallback can be implemented in the user file |
sahilmgandhi | 18:6a4db94011d3 | 3503 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3504 | } |
sahilmgandhi | 18:6a4db94011d3 | 3505 | |
sahilmgandhi | 18:6a4db94011d3 | 3506 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3507 | * @brief Slave Address Match callback. |
sahilmgandhi | 18:6a4db94011d3 | 3508 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3509 | * the configuration information for the specified I2C. |
sahilmgandhi | 18:6a4db94011d3 | 3510 | * @param TransferDirection Master request Transfer Direction (Write/Read), value of @ref I2C_XferOptions_definition |
sahilmgandhi | 18:6a4db94011d3 | 3511 | * @param AddrMatchCode Address Match Code |
sahilmgandhi | 18:6a4db94011d3 | 3512 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 3513 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3514 | __weak void HAL_I2C_AddrCallback(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode) |
sahilmgandhi | 18:6a4db94011d3 | 3515 | { |
sahilmgandhi | 18:6a4db94011d3 | 3516 | /* Prevent unused argument(s) compilation warning */ |
sahilmgandhi | 18:6a4db94011d3 | 3517 | UNUSED(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3518 | UNUSED(TransferDirection); |
sahilmgandhi | 18:6a4db94011d3 | 3519 | UNUSED(AddrMatchCode); |
sahilmgandhi | 18:6a4db94011d3 | 3520 | /* NOTE : This function should not be modified, when the callback is needed, |
sahilmgandhi | 18:6a4db94011d3 | 3521 | the HAL_I2C_AddrCallback can be implemented in the user file |
sahilmgandhi | 18:6a4db94011d3 | 3522 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3523 | } |
sahilmgandhi | 18:6a4db94011d3 | 3524 | |
sahilmgandhi | 18:6a4db94011d3 | 3525 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3526 | * @brief Listen Complete callback. |
sahilmgandhi | 18:6a4db94011d3 | 3527 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3528 | * the configuration information for the specified I2C. |
sahilmgandhi | 18:6a4db94011d3 | 3529 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 3530 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3531 | __weak void HAL_I2C_ListenCpltCallback(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3532 | { |
sahilmgandhi | 18:6a4db94011d3 | 3533 | /* Prevent unused argument(s) compilation warning */ |
sahilmgandhi | 18:6a4db94011d3 | 3534 | UNUSED(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3535 | /* NOTE : This function should not be modified, when the callback is needed, |
sahilmgandhi | 18:6a4db94011d3 | 3536 | the HAL_I2C_ListenCpltCallback can be implemented in the user file |
sahilmgandhi | 18:6a4db94011d3 | 3537 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3538 | } |
sahilmgandhi | 18:6a4db94011d3 | 3539 | |
sahilmgandhi | 18:6a4db94011d3 | 3540 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3541 | * @brief Memory Tx Transfer completed callbacks. |
sahilmgandhi | 18:6a4db94011d3 | 3542 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3543 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3544 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 3545 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3546 | __weak void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3547 | { |
sahilmgandhi | 18:6a4db94011d3 | 3548 | /* Prevent unused argument(s) compilation warning */ |
sahilmgandhi | 18:6a4db94011d3 | 3549 | UNUSED(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3550 | /* NOTE : This function should not be modified, when the callback is needed, |
sahilmgandhi | 18:6a4db94011d3 | 3551 | the HAL_I2C_MemTxCpltCallback can be implemented in the user file |
sahilmgandhi | 18:6a4db94011d3 | 3552 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3553 | } |
sahilmgandhi | 18:6a4db94011d3 | 3554 | |
sahilmgandhi | 18:6a4db94011d3 | 3555 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3556 | * @brief Memory Rx Transfer completed callbacks. |
sahilmgandhi | 18:6a4db94011d3 | 3557 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3558 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3559 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 3560 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3561 | __weak void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3562 | { |
sahilmgandhi | 18:6a4db94011d3 | 3563 | /* Prevent unused argument(s) compilation warning */ |
sahilmgandhi | 18:6a4db94011d3 | 3564 | UNUSED(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3565 | /* NOTE : This function should not be modified, when the callback is needed, |
sahilmgandhi | 18:6a4db94011d3 | 3566 | the HAL_I2C_MemRxCpltCallback can be implemented in the user file |
sahilmgandhi | 18:6a4db94011d3 | 3567 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3568 | } |
sahilmgandhi | 18:6a4db94011d3 | 3569 | |
sahilmgandhi | 18:6a4db94011d3 | 3570 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3571 | * @brief I2C error callbacks. |
sahilmgandhi | 18:6a4db94011d3 | 3572 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3573 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3574 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 3575 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3576 | __weak void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3577 | { |
sahilmgandhi | 18:6a4db94011d3 | 3578 | /* Prevent unused argument(s) compilation warning */ |
sahilmgandhi | 18:6a4db94011d3 | 3579 | UNUSED(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3580 | /* NOTE : This function should not be modified, when the callback is needed, |
sahilmgandhi | 18:6a4db94011d3 | 3581 | the HAL_I2C_ErrorCallback can be implemented in the user file |
sahilmgandhi | 18:6a4db94011d3 | 3582 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3583 | } |
sahilmgandhi | 18:6a4db94011d3 | 3584 | |
sahilmgandhi | 18:6a4db94011d3 | 3585 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3586 | * @brief I2C abort callback. |
sahilmgandhi | 18:6a4db94011d3 | 3587 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3588 | * the configuration information for the specified I2C. |
sahilmgandhi | 18:6a4db94011d3 | 3589 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 3590 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3591 | __weak void HAL_I2C_AbortCpltCallback(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3592 | { |
sahilmgandhi | 18:6a4db94011d3 | 3593 | /* Prevent unused argument(s) compilation warning */ |
sahilmgandhi | 18:6a4db94011d3 | 3594 | UNUSED(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3595 | |
sahilmgandhi | 18:6a4db94011d3 | 3596 | /* NOTE : This function should not be modified, when the callback is needed, |
sahilmgandhi | 18:6a4db94011d3 | 3597 | the HAL_I2C_AbortCpltCallback could be implemented in the user file |
sahilmgandhi | 18:6a4db94011d3 | 3598 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3599 | } |
sahilmgandhi | 18:6a4db94011d3 | 3600 | |
sahilmgandhi | 18:6a4db94011d3 | 3601 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3602 | * @} |
sahilmgandhi | 18:6a4db94011d3 | 3603 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3604 | |
sahilmgandhi | 18:6a4db94011d3 | 3605 | /** @defgroup I2C_Exported_Functions_Group3 Peripheral State and Errors functions |
sahilmgandhi | 18:6a4db94011d3 | 3606 | * @brief Peripheral State and Errors functions |
sahilmgandhi | 18:6a4db94011d3 | 3607 | * |
sahilmgandhi | 18:6a4db94011d3 | 3608 | @verbatim |
sahilmgandhi | 18:6a4db94011d3 | 3609 | =============================================================================== |
sahilmgandhi | 18:6a4db94011d3 | 3610 | ##### Peripheral State, Mode and Errors functions ##### |
sahilmgandhi | 18:6a4db94011d3 | 3611 | =============================================================================== |
sahilmgandhi | 18:6a4db94011d3 | 3612 | [..] |
sahilmgandhi | 18:6a4db94011d3 | 3613 | This subsection permits to get in run-time the status of the peripheral |
sahilmgandhi | 18:6a4db94011d3 | 3614 | and the data flow. |
sahilmgandhi | 18:6a4db94011d3 | 3615 | |
sahilmgandhi | 18:6a4db94011d3 | 3616 | @endverbatim |
sahilmgandhi | 18:6a4db94011d3 | 3617 | * @{ |
sahilmgandhi | 18:6a4db94011d3 | 3618 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3619 | |
sahilmgandhi | 18:6a4db94011d3 | 3620 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3621 | * @brief Returns the I2C state. |
sahilmgandhi | 18:6a4db94011d3 | 3622 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3623 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3624 | * @retval HAL state |
sahilmgandhi | 18:6a4db94011d3 | 3625 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3626 | HAL_I2C_StateTypeDef HAL_I2C_GetState(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3627 | { |
sahilmgandhi | 18:6a4db94011d3 | 3628 | return hi2c->State; |
sahilmgandhi | 18:6a4db94011d3 | 3629 | } |
sahilmgandhi | 18:6a4db94011d3 | 3630 | |
sahilmgandhi | 18:6a4db94011d3 | 3631 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3632 | * @brief Returns the I2C Master, Slave, Memory or no mode. |
sahilmgandhi | 18:6a4db94011d3 | 3633 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3634 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3635 | * @retval HAL mode |
sahilmgandhi | 18:6a4db94011d3 | 3636 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3637 | HAL_I2C_ModeTypeDef HAL_I2C_GetMode(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3638 | { |
sahilmgandhi | 18:6a4db94011d3 | 3639 | return hi2c->Mode; |
sahilmgandhi | 18:6a4db94011d3 | 3640 | } |
sahilmgandhi | 18:6a4db94011d3 | 3641 | |
sahilmgandhi | 18:6a4db94011d3 | 3642 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3643 | * @brief Return the I2C error code |
sahilmgandhi | 18:6a4db94011d3 | 3644 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3645 | * the configuration information for the specified I2C. |
sahilmgandhi | 18:6a4db94011d3 | 3646 | * @retval I2C Error Code |
sahilmgandhi | 18:6a4db94011d3 | 3647 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3648 | uint32_t HAL_I2C_GetError(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3649 | { |
sahilmgandhi | 18:6a4db94011d3 | 3650 | return hi2c->ErrorCode; |
sahilmgandhi | 18:6a4db94011d3 | 3651 | } |
sahilmgandhi | 18:6a4db94011d3 | 3652 | |
sahilmgandhi | 18:6a4db94011d3 | 3653 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3654 | * @} |
sahilmgandhi | 18:6a4db94011d3 | 3655 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3656 | |
sahilmgandhi | 18:6a4db94011d3 | 3657 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3658 | * @brief Handle TXE flag for Master |
sahilmgandhi | 18:6a4db94011d3 | 3659 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3660 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3661 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 3662 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3663 | static HAL_StatusTypeDef I2C_MasterTransmit_TXE(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3664 | { |
sahilmgandhi | 18:6a4db94011d3 | 3665 | /* Declaration of temporary variables to prevent undefined behavior of volatile usage */ |
sahilmgandhi | 18:6a4db94011d3 | 3666 | uint32_t CurrentState = hi2c->State; |
sahilmgandhi | 18:6a4db94011d3 | 3667 | uint32_t CurrentMode = hi2c->Mode; |
sahilmgandhi | 18:6a4db94011d3 | 3668 | uint32_t CurrentXferOptions = hi2c->XferOptions; |
sahilmgandhi | 18:6a4db94011d3 | 3669 | uint32_t tmp; |
sahilmgandhi | 18:6a4db94011d3 | 3670 | |
sahilmgandhi | 18:6a4db94011d3 | 3671 | if((hi2c->XferSize == 0U) && (CurrentState == HAL_I2C_STATE_BUSY_TX)) |
sahilmgandhi | 18:6a4db94011d3 | 3672 | { |
sahilmgandhi | 18:6a4db94011d3 | 3673 | /* Call TxCpltCallback() directly if no stop mode is set */ |
sahilmgandhi | 18:6a4db94011d3 | 3674 | if((CurrentXferOptions != I2C_FIRST_AND_LAST_FRAME) && (CurrentXferOptions != I2C_LAST_FRAME) && (CurrentXferOptions != I2C_NO_OPTION_FRAME)) |
sahilmgandhi | 18:6a4db94011d3 | 3675 | { |
sahilmgandhi | 18:6a4db94011d3 | 3676 | __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 3677 | |
sahilmgandhi | 18:6a4db94011d3 | 3678 | tmp = (uint32_t)(hi2c->State) & I2C_STATE_MSK; |
sahilmgandhi | 18:6a4db94011d3 | 3679 | hi2c->PreviousState = tmp | (uint32_t)(hi2c->Mode); |
sahilmgandhi | 18:6a4db94011d3 | 3680 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3681 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 3682 | |
sahilmgandhi | 18:6a4db94011d3 | 3683 | HAL_I2C_MasterTxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3684 | } |
sahilmgandhi | 18:6a4db94011d3 | 3685 | else /* Generate Stop condition then Call TxCpltCallback() */ |
sahilmgandhi | 18:6a4db94011d3 | 3686 | { |
sahilmgandhi | 18:6a4db94011d3 | 3687 | /* Disable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 3688 | __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 3689 | |
sahilmgandhi | 18:6a4db94011d3 | 3690 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 3691 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 3692 | |
sahilmgandhi | 18:6a4db94011d3 | 3693 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3694 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 3695 | |
sahilmgandhi | 18:6a4db94011d3 | 3696 | if(hi2c->Mode == HAL_I2C_MODE_MEM) |
sahilmgandhi | 18:6a4db94011d3 | 3697 | { |
sahilmgandhi | 18:6a4db94011d3 | 3698 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3699 | HAL_I2C_MemTxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3700 | } |
sahilmgandhi | 18:6a4db94011d3 | 3701 | else |
sahilmgandhi | 18:6a4db94011d3 | 3702 | { |
sahilmgandhi | 18:6a4db94011d3 | 3703 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3704 | HAL_I2C_MasterTxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3705 | } |
sahilmgandhi | 18:6a4db94011d3 | 3706 | } |
sahilmgandhi | 18:6a4db94011d3 | 3707 | } |
sahilmgandhi | 18:6a4db94011d3 | 3708 | else if((CurrentState == HAL_I2C_STATE_BUSY_TX) || \ |
sahilmgandhi | 18:6a4db94011d3 | 3709 | ((CurrentMode == HAL_I2C_MODE_MEM) && (CurrentState == HAL_I2C_STATE_BUSY_RX))) |
sahilmgandhi | 18:6a4db94011d3 | 3710 | { |
sahilmgandhi | 18:6a4db94011d3 | 3711 | if(hi2c->XferCount == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 3712 | { |
sahilmgandhi | 18:6a4db94011d3 | 3713 | /* Disable BUF interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 3714 | __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_BUF); |
sahilmgandhi | 18:6a4db94011d3 | 3715 | } |
sahilmgandhi | 18:6a4db94011d3 | 3716 | else |
sahilmgandhi | 18:6a4db94011d3 | 3717 | { |
sahilmgandhi | 18:6a4db94011d3 | 3718 | if(hi2c->Mode == HAL_I2C_MODE_MEM) |
sahilmgandhi | 18:6a4db94011d3 | 3719 | { |
sahilmgandhi | 18:6a4db94011d3 | 3720 | if(hi2c->EventCount == 0) |
sahilmgandhi | 18:6a4db94011d3 | 3721 | { |
sahilmgandhi | 18:6a4db94011d3 | 3722 | /* If Memory address size is 8Bit */ |
sahilmgandhi | 18:6a4db94011d3 | 3723 | if(hi2c->MemaddSize == I2C_MEMADD_SIZE_8BIT) |
sahilmgandhi | 18:6a4db94011d3 | 3724 | { |
sahilmgandhi | 18:6a4db94011d3 | 3725 | /* Send Memory Address */ |
sahilmgandhi | 18:6a4db94011d3 | 3726 | hi2c->Instance->DR = I2C_MEM_ADD_LSB(hi2c->Memaddress); |
sahilmgandhi | 18:6a4db94011d3 | 3727 | |
sahilmgandhi | 18:6a4db94011d3 | 3728 | hi2c->EventCount += 2; |
sahilmgandhi | 18:6a4db94011d3 | 3729 | } |
sahilmgandhi | 18:6a4db94011d3 | 3730 | /* If Memory address size is 16Bit */ |
sahilmgandhi | 18:6a4db94011d3 | 3731 | else |
sahilmgandhi | 18:6a4db94011d3 | 3732 | { |
sahilmgandhi | 18:6a4db94011d3 | 3733 | /* Send MSB of Memory Address */ |
sahilmgandhi | 18:6a4db94011d3 | 3734 | hi2c->Instance->DR = I2C_MEM_ADD_MSB(hi2c->Memaddress); |
sahilmgandhi | 18:6a4db94011d3 | 3735 | |
sahilmgandhi | 18:6a4db94011d3 | 3736 | hi2c->EventCount++; |
sahilmgandhi | 18:6a4db94011d3 | 3737 | } |
sahilmgandhi | 18:6a4db94011d3 | 3738 | } |
sahilmgandhi | 18:6a4db94011d3 | 3739 | else if(hi2c->EventCount == 1) |
sahilmgandhi | 18:6a4db94011d3 | 3740 | { |
sahilmgandhi | 18:6a4db94011d3 | 3741 | /* Send LSB of Memory Address */ |
sahilmgandhi | 18:6a4db94011d3 | 3742 | hi2c->Instance->DR = I2C_MEM_ADD_LSB(hi2c->Memaddress); |
sahilmgandhi | 18:6a4db94011d3 | 3743 | |
sahilmgandhi | 18:6a4db94011d3 | 3744 | hi2c->EventCount++; |
sahilmgandhi | 18:6a4db94011d3 | 3745 | } |
sahilmgandhi | 18:6a4db94011d3 | 3746 | else if(hi2c->EventCount == 2) |
sahilmgandhi | 18:6a4db94011d3 | 3747 | { |
sahilmgandhi | 18:6a4db94011d3 | 3748 | if(hi2c->State == HAL_I2C_STATE_BUSY_RX) |
sahilmgandhi | 18:6a4db94011d3 | 3749 | { |
sahilmgandhi | 18:6a4db94011d3 | 3750 | /* Generate Restart */ |
sahilmgandhi | 18:6a4db94011d3 | 3751 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 3752 | } |
sahilmgandhi | 18:6a4db94011d3 | 3753 | else if(hi2c->State == HAL_I2C_STATE_BUSY_TX) |
sahilmgandhi | 18:6a4db94011d3 | 3754 | { |
sahilmgandhi | 18:6a4db94011d3 | 3755 | /* Write data to DR */ |
sahilmgandhi | 18:6a4db94011d3 | 3756 | hi2c->Instance->DR = (*hi2c->pBuffPtr++); |
sahilmgandhi | 18:6a4db94011d3 | 3757 | hi2c->XferCount--; |
sahilmgandhi | 18:6a4db94011d3 | 3758 | } |
sahilmgandhi | 18:6a4db94011d3 | 3759 | } |
sahilmgandhi | 18:6a4db94011d3 | 3760 | } |
sahilmgandhi | 18:6a4db94011d3 | 3761 | else |
sahilmgandhi | 18:6a4db94011d3 | 3762 | { |
sahilmgandhi | 18:6a4db94011d3 | 3763 | /* Write data to DR */ |
sahilmgandhi | 18:6a4db94011d3 | 3764 | hi2c->Instance->DR = (*hi2c->pBuffPtr++); |
sahilmgandhi | 18:6a4db94011d3 | 3765 | hi2c->XferCount--; |
sahilmgandhi | 18:6a4db94011d3 | 3766 | } |
sahilmgandhi | 18:6a4db94011d3 | 3767 | } |
sahilmgandhi | 18:6a4db94011d3 | 3768 | } |
sahilmgandhi | 18:6a4db94011d3 | 3769 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 3770 | } |
sahilmgandhi | 18:6a4db94011d3 | 3771 | |
sahilmgandhi | 18:6a4db94011d3 | 3772 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3773 | * @brief Handle BTF flag for Master transmitter |
sahilmgandhi | 18:6a4db94011d3 | 3774 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3775 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3776 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 3777 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3778 | static HAL_StatusTypeDef I2C_MasterTransmit_BTF(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3779 | { |
sahilmgandhi | 18:6a4db94011d3 | 3780 | /* Declaration of temporary variables to prevent undefined behavior of volatile usage */ |
sahilmgandhi | 18:6a4db94011d3 | 3781 | uint32_t tmp; |
sahilmgandhi | 18:6a4db94011d3 | 3782 | uint32_t CurrentXferOptions = hi2c->XferOptions; |
sahilmgandhi | 18:6a4db94011d3 | 3783 | |
sahilmgandhi | 18:6a4db94011d3 | 3784 | if(hi2c->State == HAL_I2C_STATE_BUSY_TX) |
sahilmgandhi | 18:6a4db94011d3 | 3785 | { |
sahilmgandhi | 18:6a4db94011d3 | 3786 | if(hi2c->XferCount != 0U) |
sahilmgandhi | 18:6a4db94011d3 | 3787 | { |
sahilmgandhi | 18:6a4db94011d3 | 3788 | /* Write data to DR */ |
sahilmgandhi | 18:6a4db94011d3 | 3789 | hi2c->Instance->DR = (*hi2c->pBuffPtr++); |
sahilmgandhi | 18:6a4db94011d3 | 3790 | hi2c->XferCount--; |
sahilmgandhi | 18:6a4db94011d3 | 3791 | } |
sahilmgandhi | 18:6a4db94011d3 | 3792 | else |
sahilmgandhi | 18:6a4db94011d3 | 3793 | { |
sahilmgandhi | 18:6a4db94011d3 | 3794 | /* Call TxCpltCallback() directly if no stop mode is set */ |
sahilmgandhi | 18:6a4db94011d3 | 3795 | if((CurrentXferOptions != I2C_FIRST_AND_LAST_FRAME) && (CurrentXferOptions != I2C_LAST_FRAME) && (CurrentXferOptions != I2C_NO_OPTION_FRAME)) |
sahilmgandhi | 18:6a4db94011d3 | 3796 | { |
sahilmgandhi | 18:6a4db94011d3 | 3797 | __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 3798 | |
sahilmgandhi | 18:6a4db94011d3 | 3799 | tmp = (uint32_t)(hi2c->State) & I2C_STATE_MSK; |
sahilmgandhi | 18:6a4db94011d3 | 3800 | hi2c->PreviousState = tmp | (uint32_t)(hi2c->Mode); |
sahilmgandhi | 18:6a4db94011d3 | 3801 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3802 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 3803 | |
sahilmgandhi | 18:6a4db94011d3 | 3804 | HAL_I2C_MasterTxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3805 | } |
sahilmgandhi | 18:6a4db94011d3 | 3806 | else /* Generate Stop condition then Call TxCpltCallback() */ |
sahilmgandhi | 18:6a4db94011d3 | 3807 | { |
sahilmgandhi | 18:6a4db94011d3 | 3808 | /* Disable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 3809 | __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 3810 | |
sahilmgandhi | 18:6a4db94011d3 | 3811 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 3812 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 3813 | |
sahilmgandhi | 18:6a4db94011d3 | 3814 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3815 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 3816 | |
sahilmgandhi | 18:6a4db94011d3 | 3817 | if(hi2c->Mode == HAL_I2C_MODE_MEM) |
sahilmgandhi | 18:6a4db94011d3 | 3818 | { |
sahilmgandhi | 18:6a4db94011d3 | 3819 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3820 | |
sahilmgandhi | 18:6a4db94011d3 | 3821 | HAL_I2C_MemTxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3822 | } |
sahilmgandhi | 18:6a4db94011d3 | 3823 | else |
sahilmgandhi | 18:6a4db94011d3 | 3824 | { |
sahilmgandhi | 18:6a4db94011d3 | 3825 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3826 | |
sahilmgandhi | 18:6a4db94011d3 | 3827 | HAL_I2C_MasterTxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3828 | } |
sahilmgandhi | 18:6a4db94011d3 | 3829 | } |
sahilmgandhi | 18:6a4db94011d3 | 3830 | } |
sahilmgandhi | 18:6a4db94011d3 | 3831 | } |
sahilmgandhi | 18:6a4db94011d3 | 3832 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 3833 | } |
sahilmgandhi | 18:6a4db94011d3 | 3834 | |
sahilmgandhi | 18:6a4db94011d3 | 3835 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3836 | * @brief Handle RXNE flag for Master |
sahilmgandhi | 18:6a4db94011d3 | 3837 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3838 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3839 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 3840 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3841 | static HAL_StatusTypeDef I2C_MasterReceive_RXNE(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3842 | { |
sahilmgandhi | 18:6a4db94011d3 | 3843 | |
sahilmgandhi | 18:6a4db94011d3 | 3844 | if(hi2c->State == HAL_I2C_STATE_BUSY_RX) |
sahilmgandhi | 18:6a4db94011d3 | 3845 | { |
sahilmgandhi | 18:6a4db94011d3 | 3846 | uint32_t tmp = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 3847 | |
sahilmgandhi | 18:6a4db94011d3 | 3848 | tmp = hi2c->XferCount; |
sahilmgandhi | 18:6a4db94011d3 | 3849 | if(tmp > 3U) |
sahilmgandhi | 18:6a4db94011d3 | 3850 | { |
sahilmgandhi | 18:6a4db94011d3 | 3851 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 3852 | (*hi2c->pBuffPtr++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 3853 | hi2c->XferCount--; |
sahilmgandhi | 18:6a4db94011d3 | 3854 | } |
sahilmgandhi | 18:6a4db94011d3 | 3855 | else if((tmp == 2U) || (tmp == 3U)) |
sahilmgandhi | 18:6a4db94011d3 | 3856 | { |
sahilmgandhi | 18:6a4db94011d3 | 3857 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 3858 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 3859 | |
sahilmgandhi | 18:6a4db94011d3 | 3860 | /* Enable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 3861 | hi2c->Instance->CR1 |= I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 3862 | |
sahilmgandhi | 18:6a4db94011d3 | 3863 | /* Disable BUF interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 3864 | __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_BUF); |
sahilmgandhi | 18:6a4db94011d3 | 3865 | } |
sahilmgandhi | 18:6a4db94011d3 | 3866 | else |
sahilmgandhi | 18:6a4db94011d3 | 3867 | { |
sahilmgandhi | 18:6a4db94011d3 | 3868 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 3869 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 3870 | |
sahilmgandhi | 18:6a4db94011d3 | 3871 | if(hi2c->XferOptions == I2C_NEXT_FRAME) |
sahilmgandhi | 18:6a4db94011d3 | 3872 | { |
sahilmgandhi | 18:6a4db94011d3 | 3873 | /* Enable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 3874 | hi2c->Instance->CR1 |= I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 3875 | } |
sahilmgandhi | 18:6a4db94011d3 | 3876 | |
sahilmgandhi | 18:6a4db94011d3 | 3877 | /* Disable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 3878 | __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 3879 | |
sahilmgandhi | 18:6a4db94011d3 | 3880 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 3881 | (*hi2c->pBuffPtr++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 3882 | hi2c->XferCount--; |
sahilmgandhi | 18:6a4db94011d3 | 3883 | |
sahilmgandhi | 18:6a4db94011d3 | 3884 | tmp = (uint32_t)(hi2c->State) & I2C_STATE_MSK; |
sahilmgandhi | 18:6a4db94011d3 | 3885 | hi2c->PreviousState = tmp | (uint32_t)(hi2c->Mode); |
sahilmgandhi | 18:6a4db94011d3 | 3886 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 3887 | |
sahilmgandhi | 18:6a4db94011d3 | 3888 | if(hi2c->Mode == HAL_I2C_MODE_MEM) |
sahilmgandhi | 18:6a4db94011d3 | 3889 | { |
sahilmgandhi | 18:6a4db94011d3 | 3890 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3891 | HAL_I2C_MemRxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3892 | } |
sahilmgandhi | 18:6a4db94011d3 | 3893 | else |
sahilmgandhi | 18:6a4db94011d3 | 3894 | { |
sahilmgandhi | 18:6a4db94011d3 | 3895 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3896 | HAL_I2C_MasterRxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3897 | } |
sahilmgandhi | 18:6a4db94011d3 | 3898 | } |
sahilmgandhi | 18:6a4db94011d3 | 3899 | } |
sahilmgandhi | 18:6a4db94011d3 | 3900 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 3901 | } |
sahilmgandhi | 18:6a4db94011d3 | 3902 | |
sahilmgandhi | 18:6a4db94011d3 | 3903 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3904 | * @brief Handle BTF flag for Master receiver |
sahilmgandhi | 18:6a4db94011d3 | 3905 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3906 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3907 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 3908 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3909 | static HAL_StatusTypeDef I2C_MasterReceive_BTF(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3910 | { |
sahilmgandhi | 18:6a4db94011d3 | 3911 | /* Declaration of temporary variables to prevent undefined behavior of volatile usage */ |
sahilmgandhi | 18:6a4db94011d3 | 3912 | uint32_t tmp; |
sahilmgandhi | 18:6a4db94011d3 | 3913 | uint32_t CurrentXferOptions = hi2c->XferOptions; |
sahilmgandhi | 18:6a4db94011d3 | 3914 | |
sahilmgandhi | 18:6a4db94011d3 | 3915 | if(hi2c->XferCount == 3U) |
sahilmgandhi | 18:6a4db94011d3 | 3916 | { |
sahilmgandhi | 18:6a4db94011d3 | 3917 | if((CurrentXferOptions == I2C_FIRST_AND_LAST_FRAME) || (CurrentXferOptions == I2C_LAST_FRAME) || (CurrentXferOptions == I2C_NO_OPTION_FRAME)) |
sahilmgandhi | 18:6a4db94011d3 | 3918 | { |
sahilmgandhi | 18:6a4db94011d3 | 3919 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 3920 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 3921 | } |
sahilmgandhi | 18:6a4db94011d3 | 3922 | |
sahilmgandhi | 18:6a4db94011d3 | 3923 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 3924 | (*hi2c->pBuffPtr++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 3925 | hi2c->XferCount--; |
sahilmgandhi | 18:6a4db94011d3 | 3926 | } |
sahilmgandhi | 18:6a4db94011d3 | 3927 | else if(hi2c->XferCount == 2U) |
sahilmgandhi | 18:6a4db94011d3 | 3928 | { |
sahilmgandhi | 18:6a4db94011d3 | 3929 | /* Prepare next transfer or stop current transfer */ |
sahilmgandhi | 18:6a4db94011d3 | 3930 | if((CurrentXferOptions != I2C_FIRST_AND_LAST_FRAME) && (CurrentXferOptions != I2C_LAST_FRAME) && (CurrentXferOptions != I2C_NO_OPTION_FRAME)) |
sahilmgandhi | 18:6a4db94011d3 | 3931 | { |
sahilmgandhi | 18:6a4db94011d3 | 3932 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 3933 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 3934 | |
sahilmgandhi | 18:6a4db94011d3 | 3935 | if((CurrentXferOptions == I2C_NEXT_FRAME) || (CurrentXferOptions == I2C_FIRST_FRAME)) |
sahilmgandhi | 18:6a4db94011d3 | 3936 | { |
sahilmgandhi | 18:6a4db94011d3 | 3937 | /* Generate Start */ |
sahilmgandhi | 18:6a4db94011d3 | 3938 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 3939 | } |
sahilmgandhi | 18:6a4db94011d3 | 3940 | tmp = (uint32_t)(hi2c->State) & I2C_STATE_MSK; |
sahilmgandhi | 18:6a4db94011d3 | 3941 | hi2c->PreviousState = tmp | (uint32_t)(hi2c->Mode); |
sahilmgandhi | 18:6a4db94011d3 | 3942 | } |
sahilmgandhi | 18:6a4db94011d3 | 3943 | else |
sahilmgandhi | 18:6a4db94011d3 | 3944 | { |
sahilmgandhi | 18:6a4db94011d3 | 3945 | hi2c->PreviousState = I2C_STATE_MASTER_BUSY_RX; |
sahilmgandhi | 18:6a4db94011d3 | 3946 | |
sahilmgandhi | 18:6a4db94011d3 | 3947 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 3948 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 3949 | } |
sahilmgandhi | 18:6a4db94011d3 | 3950 | |
sahilmgandhi | 18:6a4db94011d3 | 3951 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 3952 | (*hi2c->pBuffPtr++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 3953 | hi2c->XferCount--; |
sahilmgandhi | 18:6a4db94011d3 | 3954 | |
sahilmgandhi | 18:6a4db94011d3 | 3955 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 3956 | (*hi2c->pBuffPtr++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 3957 | hi2c->XferCount--; |
sahilmgandhi | 18:6a4db94011d3 | 3958 | |
sahilmgandhi | 18:6a4db94011d3 | 3959 | /* Disable EVT and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 3960 | __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 3961 | |
sahilmgandhi | 18:6a4db94011d3 | 3962 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 3963 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3964 | |
sahilmgandhi | 18:6a4db94011d3 | 3965 | if(hi2c->Mode == HAL_I2C_MODE_MEM) |
sahilmgandhi | 18:6a4db94011d3 | 3966 | { |
sahilmgandhi | 18:6a4db94011d3 | 3967 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3968 | |
sahilmgandhi | 18:6a4db94011d3 | 3969 | HAL_I2C_MemRxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3970 | } |
sahilmgandhi | 18:6a4db94011d3 | 3971 | else |
sahilmgandhi | 18:6a4db94011d3 | 3972 | { |
sahilmgandhi | 18:6a4db94011d3 | 3973 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 3974 | |
sahilmgandhi | 18:6a4db94011d3 | 3975 | HAL_I2C_MasterRxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 3976 | } |
sahilmgandhi | 18:6a4db94011d3 | 3977 | } |
sahilmgandhi | 18:6a4db94011d3 | 3978 | else |
sahilmgandhi | 18:6a4db94011d3 | 3979 | { |
sahilmgandhi | 18:6a4db94011d3 | 3980 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 3981 | (*hi2c->pBuffPtr++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 3982 | hi2c->XferCount--; |
sahilmgandhi | 18:6a4db94011d3 | 3983 | } |
sahilmgandhi | 18:6a4db94011d3 | 3984 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 3985 | } |
sahilmgandhi | 18:6a4db94011d3 | 3986 | |
sahilmgandhi | 18:6a4db94011d3 | 3987 | /** |
sahilmgandhi | 18:6a4db94011d3 | 3988 | * @brief Handle SB flag for Master |
sahilmgandhi | 18:6a4db94011d3 | 3989 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 3990 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 3991 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 3992 | */ |
sahilmgandhi | 18:6a4db94011d3 | 3993 | |
sahilmgandhi | 18:6a4db94011d3 | 3994 | static HAL_StatusTypeDef I2C_Master_SB(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 3995 | { |
sahilmgandhi | 18:6a4db94011d3 | 3996 | if(hi2c->Mode == HAL_I2C_MODE_MEM) |
sahilmgandhi | 18:6a4db94011d3 | 3997 | { |
sahilmgandhi | 18:6a4db94011d3 | 3998 | if(hi2c->EventCount == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 3999 | { |
sahilmgandhi | 18:6a4db94011d3 | 4000 | /* Send slave address */ |
sahilmgandhi | 18:6a4db94011d3 | 4001 | hi2c->Instance->DR = I2C_7BIT_ADD_WRITE(hi2c->Devaddress); |
sahilmgandhi | 18:6a4db94011d3 | 4002 | } |
sahilmgandhi | 18:6a4db94011d3 | 4003 | else |
sahilmgandhi | 18:6a4db94011d3 | 4004 | { |
sahilmgandhi | 18:6a4db94011d3 | 4005 | hi2c->Instance->DR = I2C_7BIT_ADD_READ(hi2c->Devaddress); |
sahilmgandhi | 18:6a4db94011d3 | 4006 | } |
sahilmgandhi | 18:6a4db94011d3 | 4007 | } |
sahilmgandhi | 18:6a4db94011d3 | 4008 | else |
sahilmgandhi | 18:6a4db94011d3 | 4009 | { |
sahilmgandhi | 18:6a4db94011d3 | 4010 | if(hi2c->Init.AddressingMode == I2C_ADDRESSINGMODE_7BIT) |
sahilmgandhi | 18:6a4db94011d3 | 4011 | { |
sahilmgandhi | 18:6a4db94011d3 | 4012 | /* Send slave 7 Bits address */ |
sahilmgandhi | 18:6a4db94011d3 | 4013 | if(hi2c->State == HAL_I2C_STATE_BUSY_TX) |
sahilmgandhi | 18:6a4db94011d3 | 4014 | { |
sahilmgandhi | 18:6a4db94011d3 | 4015 | hi2c->Instance->DR = I2C_7BIT_ADD_WRITE(hi2c->Devaddress); |
sahilmgandhi | 18:6a4db94011d3 | 4016 | } |
sahilmgandhi | 18:6a4db94011d3 | 4017 | else |
sahilmgandhi | 18:6a4db94011d3 | 4018 | { |
sahilmgandhi | 18:6a4db94011d3 | 4019 | hi2c->Instance->DR = I2C_7BIT_ADD_READ(hi2c->Devaddress); |
sahilmgandhi | 18:6a4db94011d3 | 4020 | } |
sahilmgandhi | 18:6a4db94011d3 | 4021 | } |
sahilmgandhi | 18:6a4db94011d3 | 4022 | else |
sahilmgandhi | 18:6a4db94011d3 | 4023 | { |
sahilmgandhi | 18:6a4db94011d3 | 4024 | if(hi2c->EventCount == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 4025 | { |
sahilmgandhi | 18:6a4db94011d3 | 4026 | /* Send header of slave address */ |
sahilmgandhi | 18:6a4db94011d3 | 4027 | hi2c->Instance->DR = I2C_10BIT_HEADER_WRITE(hi2c->Devaddress); |
sahilmgandhi | 18:6a4db94011d3 | 4028 | } |
sahilmgandhi | 18:6a4db94011d3 | 4029 | else if(hi2c->EventCount == 1U) |
sahilmgandhi | 18:6a4db94011d3 | 4030 | { |
sahilmgandhi | 18:6a4db94011d3 | 4031 | /* Send header of slave address */ |
sahilmgandhi | 18:6a4db94011d3 | 4032 | hi2c->Instance->DR = I2C_10BIT_HEADER_READ(hi2c->Devaddress); |
sahilmgandhi | 18:6a4db94011d3 | 4033 | } |
sahilmgandhi | 18:6a4db94011d3 | 4034 | } |
sahilmgandhi | 18:6a4db94011d3 | 4035 | } |
sahilmgandhi | 18:6a4db94011d3 | 4036 | |
sahilmgandhi | 18:6a4db94011d3 | 4037 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 4038 | } |
sahilmgandhi | 18:6a4db94011d3 | 4039 | |
sahilmgandhi | 18:6a4db94011d3 | 4040 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4041 | * @brief Handle ADD10 flag for Master |
sahilmgandhi | 18:6a4db94011d3 | 4042 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 4043 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 4044 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 4045 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4046 | static HAL_StatusTypeDef I2C_Master_ADD10(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 4047 | { |
sahilmgandhi | 18:6a4db94011d3 | 4048 | /* Send slave address */ |
sahilmgandhi | 18:6a4db94011d3 | 4049 | hi2c->Instance->DR = I2C_10BIT_ADDRESS(hi2c->Devaddress); |
sahilmgandhi | 18:6a4db94011d3 | 4050 | |
sahilmgandhi | 18:6a4db94011d3 | 4051 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 4052 | } |
sahilmgandhi | 18:6a4db94011d3 | 4053 | |
sahilmgandhi | 18:6a4db94011d3 | 4054 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4055 | * @brief Handle ADDR flag for Master |
sahilmgandhi | 18:6a4db94011d3 | 4056 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 4057 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 4058 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 4059 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4060 | static HAL_StatusTypeDef I2C_Master_ADDR(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 4061 | { |
sahilmgandhi | 18:6a4db94011d3 | 4062 | /* Declaration of temporary variable to prevent undefined behavior of volatile usage */ |
sahilmgandhi | 18:6a4db94011d3 | 4063 | uint32_t CurrentMode = hi2c->Mode; |
sahilmgandhi | 18:6a4db94011d3 | 4064 | uint32_t CurrentXferOptions = hi2c->XferOptions; |
sahilmgandhi | 18:6a4db94011d3 | 4065 | uint32_t Prev_State = hi2c->PreviousState; |
sahilmgandhi | 18:6a4db94011d3 | 4066 | |
sahilmgandhi | 18:6a4db94011d3 | 4067 | if(hi2c->State == HAL_I2C_STATE_BUSY_RX) |
sahilmgandhi | 18:6a4db94011d3 | 4068 | { |
sahilmgandhi | 18:6a4db94011d3 | 4069 | if((hi2c->EventCount == 0U) && (CurrentMode == HAL_I2C_MODE_MEM)) |
sahilmgandhi | 18:6a4db94011d3 | 4070 | { |
sahilmgandhi | 18:6a4db94011d3 | 4071 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 4072 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4073 | } |
sahilmgandhi | 18:6a4db94011d3 | 4074 | else if((hi2c->EventCount == 0U) && (hi2c->Init.AddressingMode == I2C_ADDRESSINGMODE_10BIT)) |
sahilmgandhi | 18:6a4db94011d3 | 4075 | { |
sahilmgandhi | 18:6a4db94011d3 | 4076 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 4077 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4078 | |
sahilmgandhi | 18:6a4db94011d3 | 4079 | /* Generate Restart */ |
sahilmgandhi | 18:6a4db94011d3 | 4080 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 4081 | |
sahilmgandhi | 18:6a4db94011d3 | 4082 | hi2c->EventCount++; |
sahilmgandhi | 18:6a4db94011d3 | 4083 | } |
sahilmgandhi | 18:6a4db94011d3 | 4084 | else |
sahilmgandhi | 18:6a4db94011d3 | 4085 | { |
sahilmgandhi | 18:6a4db94011d3 | 4086 | if(hi2c->XferCount == 0U) |
sahilmgandhi | 18:6a4db94011d3 | 4087 | { |
sahilmgandhi | 18:6a4db94011d3 | 4088 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 4089 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4090 | |
sahilmgandhi | 18:6a4db94011d3 | 4091 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 4092 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 4093 | } |
sahilmgandhi | 18:6a4db94011d3 | 4094 | else if(hi2c->XferCount == 1U) |
sahilmgandhi | 18:6a4db94011d3 | 4095 | { |
sahilmgandhi | 18:6a4db94011d3 | 4096 | /* Prepare next transfer or stop current transfer */ |
sahilmgandhi | 18:6a4db94011d3 | 4097 | if((CurrentXferOptions != I2C_FIRST_AND_LAST_FRAME) && (CurrentXferOptions != I2C_LAST_FRAME) \ |
sahilmgandhi | 18:6a4db94011d3 | 4098 | && (Prev_State != I2C_STATE_MASTER_BUSY_RX)) |
sahilmgandhi | 18:6a4db94011d3 | 4099 | { |
sahilmgandhi | 18:6a4db94011d3 | 4100 | if(hi2c->XferOptions != I2C_NEXT_FRAME) |
sahilmgandhi | 18:6a4db94011d3 | 4101 | { |
sahilmgandhi | 18:6a4db94011d3 | 4102 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 4103 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 4104 | } |
sahilmgandhi | 18:6a4db94011d3 | 4105 | else |
sahilmgandhi | 18:6a4db94011d3 | 4106 | { |
sahilmgandhi | 18:6a4db94011d3 | 4107 | /* Enable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 4108 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 4109 | } |
sahilmgandhi | 18:6a4db94011d3 | 4110 | |
sahilmgandhi | 18:6a4db94011d3 | 4111 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 4112 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4113 | } |
sahilmgandhi | 18:6a4db94011d3 | 4114 | else |
sahilmgandhi | 18:6a4db94011d3 | 4115 | { |
sahilmgandhi | 18:6a4db94011d3 | 4116 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 4117 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 4118 | |
sahilmgandhi | 18:6a4db94011d3 | 4119 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 4120 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4121 | |
sahilmgandhi | 18:6a4db94011d3 | 4122 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 4123 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 4124 | } |
sahilmgandhi | 18:6a4db94011d3 | 4125 | } |
sahilmgandhi | 18:6a4db94011d3 | 4126 | else if(hi2c->XferCount == 2U) |
sahilmgandhi | 18:6a4db94011d3 | 4127 | { |
sahilmgandhi | 18:6a4db94011d3 | 4128 | if(hi2c->XferOptions != I2C_NEXT_FRAME) |
sahilmgandhi | 18:6a4db94011d3 | 4129 | { |
sahilmgandhi | 18:6a4db94011d3 | 4130 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 4131 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 4132 | |
sahilmgandhi | 18:6a4db94011d3 | 4133 | /* Enable Pos */ |
sahilmgandhi | 18:6a4db94011d3 | 4134 | hi2c->Instance->CR1 |= I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 4135 | } |
sahilmgandhi | 18:6a4db94011d3 | 4136 | else |
sahilmgandhi | 18:6a4db94011d3 | 4137 | { |
sahilmgandhi | 18:6a4db94011d3 | 4138 | /* Enable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 4139 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 4140 | } |
sahilmgandhi | 18:6a4db94011d3 | 4141 | |
sahilmgandhi | 18:6a4db94011d3 | 4142 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 4143 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4144 | } |
sahilmgandhi | 18:6a4db94011d3 | 4145 | else |
sahilmgandhi | 18:6a4db94011d3 | 4146 | { |
sahilmgandhi | 18:6a4db94011d3 | 4147 | /* Enable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 4148 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 4149 | |
sahilmgandhi | 18:6a4db94011d3 | 4150 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 4151 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4152 | } |
sahilmgandhi | 18:6a4db94011d3 | 4153 | |
sahilmgandhi | 18:6a4db94011d3 | 4154 | /* Reset Event counter */ |
sahilmgandhi | 18:6a4db94011d3 | 4155 | hi2c->EventCount = 0; |
sahilmgandhi | 18:6a4db94011d3 | 4156 | } |
sahilmgandhi | 18:6a4db94011d3 | 4157 | } |
sahilmgandhi | 18:6a4db94011d3 | 4158 | else |
sahilmgandhi | 18:6a4db94011d3 | 4159 | { |
sahilmgandhi | 18:6a4db94011d3 | 4160 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 4161 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4162 | } |
sahilmgandhi | 18:6a4db94011d3 | 4163 | |
sahilmgandhi | 18:6a4db94011d3 | 4164 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 4165 | } |
sahilmgandhi | 18:6a4db94011d3 | 4166 | |
sahilmgandhi | 18:6a4db94011d3 | 4167 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4168 | * @brief Handle TXE flag for Slave |
sahilmgandhi | 18:6a4db94011d3 | 4169 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 4170 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 4171 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 4172 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4173 | static HAL_StatusTypeDef I2C_SlaveTransmit_TXE(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 4174 | { |
sahilmgandhi | 18:6a4db94011d3 | 4175 | /* Declaration of temporary variables to prevent undefined behavior of volatile usage */ |
sahilmgandhi | 18:6a4db94011d3 | 4176 | uint32_t tmp; |
sahilmgandhi | 18:6a4db94011d3 | 4177 | uint32_t CurrentState = hi2c->State; |
sahilmgandhi | 18:6a4db94011d3 | 4178 | |
sahilmgandhi | 18:6a4db94011d3 | 4179 | if(hi2c->XferCount != 0U) |
sahilmgandhi | 18:6a4db94011d3 | 4180 | { |
sahilmgandhi | 18:6a4db94011d3 | 4181 | /* Write data to DR */ |
sahilmgandhi | 18:6a4db94011d3 | 4182 | hi2c->Instance->DR = (*hi2c->pBuffPtr++); |
sahilmgandhi | 18:6a4db94011d3 | 4183 | hi2c->XferCount--; |
sahilmgandhi | 18:6a4db94011d3 | 4184 | |
sahilmgandhi | 18:6a4db94011d3 | 4185 | if((hi2c->XferCount == 0U) && (CurrentState == HAL_I2C_STATE_BUSY_TX_LISTEN)) |
sahilmgandhi | 18:6a4db94011d3 | 4186 | { |
sahilmgandhi | 18:6a4db94011d3 | 4187 | /* Last Byte is received, disable Interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 4188 | __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_BUF); |
sahilmgandhi | 18:6a4db94011d3 | 4189 | |
sahilmgandhi | 18:6a4db94011d3 | 4190 | /* Set state at HAL_I2C_STATE_LISTEN */ |
sahilmgandhi | 18:6a4db94011d3 | 4191 | tmp = (uint32_t)(hi2c->State) & I2C_STATE_MSK; |
sahilmgandhi | 18:6a4db94011d3 | 4192 | hi2c->PreviousState = tmp | (uint32_t)(hi2c->Mode); |
sahilmgandhi | 18:6a4db94011d3 | 4193 | hi2c->State = HAL_I2C_STATE_LISTEN; |
sahilmgandhi | 18:6a4db94011d3 | 4194 | |
sahilmgandhi | 18:6a4db94011d3 | 4195 | /* Call the Tx complete callback to inform upper layer of the end of receive process */ |
sahilmgandhi | 18:6a4db94011d3 | 4196 | HAL_I2C_SlaveTxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4197 | } |
sahilmgandhi | 18:6a4db94011d3 | 4198 | } |
sahilmgandhi | 18:6a4db94011d3 | 4199 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 4200 | } |
sahilmgandhi | 18:6a4db94011d3 | 4201 | |
sahilmgandhi | 18:6a4db94011d3 | 4202 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4203 | * @brief Handle BTF flag for Slave transmitter |
sahilmgandhi | 18:6a4db94011d3 | 4204 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 4205 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 4206 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 4207 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4208 | static HAL_StatusTypeDef I2C_SlaveTransmit_BTF(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 4209 | { |
sahilmgandhi | 18:6a4db94011d3 | 4210 | if(hi2c->XferCount != 0U) |
sahilmgandhi | 18:6a4db94011d3 | 4211 | { |
sahilmgandhi | 18:6a4db94011d3 | 4212 | /* Write data to DR */ |
sahilmgandhi | 18:6a4db94011d3 | 4213 | hi2c->Instance->DR = (*hi2c->pBuffPtr++); |
sahilmgandhi | 18:6a4db94011d3 | 4214 | hi2c->XferCount--; |
sahilmgandhi | 18:6a4db94011d3 | 4215 | } |
sahilmgandhi | 18:6a4db94011d3 | 4216 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 4217 | } |
sahilmgandhi | 18:6a4db94011d3 | 4218 | |
sahilmgandhi | 18:6a4db94011d3 | 4219 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4220 | * @brief Handle RXNE flag for Slave |
sahilmgandhi | 18:6a4db94011d3 | 4221 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 4222 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 4223 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 4224 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4225 | static HAL_StatusTypeDef I2C_SlaveReceive_RXNE(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 4226 | { |
sahilmgandhi | 18:6a4db94011d3 | 4227 | /* Declaration of temporary variables to prevent undefined behavior of volatile usage */ |
sahilmgandhi | 18:6a4db94011d3 | 4228 | uint32_t tmp; |
sahilmgandhi | 18:6a4db94011d3 | 4229 | uint32_t CurrentState = hi2c->State; |
sahilmgandhi | 18:6a4db94011d3 | 4230 | |
sahilmgandhi | 18:6a4db94011d3 | 4231 | if(hi2c->XferCount != 0U) |
sahilmgandhi | 18:6a4db94011d3 | 4232 | { |
sahilmgandhi | 18:6a4db94011d3 | 4233 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 4234 | (*hi2c->pBuffPtr++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 4235 | hi2c->XferCount--; |
sahilmgandhi | 18:6a4db94011d3 | 4236 | |
sahilmgandhi | 18:6a4db94011d3 | 4237 | if((hi2c->XferCount == 0U) && (CurrentState == HAL_I2C_STATE_BUSY_RX_LISTEN)) |
sahilmgandhi | 18:6a4db94011d3 | 4238 | { |
sahilmgandhi | 18:6a4db94011d3 | 4239 | /* Last Byte is received, disable Interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 4240 | __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_BUF); |
sahilmgandhi | 18:6a4db94011d3 | 4241 | |
sahilmgandhi | 18:6a4db94011d3 | 4242 | /* Set state at HAL_I2C_STATE_LISTEN */ |
sahilmgandhi | 18:6a4db94011d3 | 4243 | tmp = (uint32_t)(hi2c->State) & I2C_STATE_MSK; |
sahilmgandhi | 18:6a4db94011d3 | 4244 | hi2c->PreviousState = tmp | (uint32_t)(hi2c->Mode); |
sahilmgandhi | 18:6a4db94011d3 | 4245 | hi2c->State = HAL_I2C_STATE_LISTEN; |
sahilmgandhi | 18:6a4db94011d3 | 4246 | |
sahilmgandhi | 18:6a4db94011d3 | 4247 | /* Call the Rx complete callback to inform upper layer of the end of receive process */ |
sahilmgandhi | 18:6a4db94011d3 | 4248 | HAL_I2C_SlaveRxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4249 | } |
sahilmgandhi | 18:6a4db94011d3 | 4250 | } |
sahilmgandhi | 18:6a4db94011d3 | 4251 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 4252 | } |
sahilmgandhi | 18:6a4db94011d3 | 4253 | |
sahilmgandhi | 18:6a4db94011d3 | 4254 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4255 | * @brief Handle BTF flag for Slave receiver |
sahilmgandhi | 18:6a4db94011d3 | 4256 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 4257 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 4258 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 4259 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4260 | static HAL_StatusTypeDef I2C_SlaveReceive_BTF(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 4261 | { |
sahilmgandhi | 18:6a4db94011d3 | 4262 | if(hi2c->XferCount != 0U) |
sahilmgandhi | 18:6a4db94011d3 | 4263 | { |
sahilmgandhi | 18:6a4db94011d3 | 4264 | /* Read data from DR */ |
sahilmgandhi | 18:6a4db94011d3 | 4265 | (*hi2c->pBuffPtr++) = hi2c->Instance->DR; |
sahilmgandhi | 18:6a4db94011d3 | 4266 | hi2c->XferCount--; |
sahilmgandhi | 18:6a4db94011d3 | 4267 | } |
sahilmgandhi | 18:6a4db94011d3 | 4268 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 4269 | } |
sahilmgandhi | 18:6a4db94011d3 | 4270 | |
sahilmgandhi | 18:6a4db94011d3 | 4271 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4272 | * @brief Handle ADD flag for Slave |
sahilmgandhi | 18:6a4db94011d3 | 4273 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 4274 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 4275 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 4276 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4277 | static HAL_StatusTypeDef I2C_Slave_ADDR(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 4278 | { |
sahilmgandhi | 18:6a4db94011d3 | 4279 | uint8_t TransferDirection = I2C_DIRECTION_RECEIVE; |
sahilmgandhi | 18:6a4db94011d3 | 4280 | uint16_t SlaveAddrCode = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 4281 | |
sahilmgandhi | 18:6a4db94011d3 | 4282 | /* Transfer Direction requested by Master */ |
sahilmgandhi | 18:6a4db94011d3 | 4283 | if(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_TRA) == RESET) |
sahilmgandhi | 18:6a4db94011d3 | 4284 | { |
sahilmgandhi | 18:6a4db94011d3 | 4285 | TransferDirection = I2C_DIRECTION_TRANSMIT; |
sahilmgandhi | 18:6a4db94011d3 | 4286 | } |
sahilmgandhi | 18:6a4db94011d3 | 4287 | |
sahilmgandhi | 18:6a4db94011d3 | 4288 | if(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_DUALF) == RESET) |
sahilmgandhi | 18:6a4db94011d3 | 4289 | { |
sahilmgandhi | 18:6a4db94011d3 | 4290 | SlaveAddrCode = hi2c->Init.OwnAddress1; |
sahilmgandhi | 18:6a4db94011d3 | 4291 | } |
sahilmgandhi | 18:6a4db94011d3 | 4292 | else |
sahilmgandhi | 18:6a4db94011d3 | 4293 | { |
sahilmgandhi | 18:6a4db94011d3 | 4294 | SlaveAddrCode = hi2c->Init.OwnAddress2; |
sahilmgandhi | 18:6a4db94011d3 | 4295 | } |
sahilmgandhi | 18:6a4db94011d3 | 4296 | |
sahilmgandhi | 18:6a4db94011d3 | 4297 | /* Call Slave Addr callback */ |
sahilmgandhi | 18:6a4db94011d3 | 4298 | HAL_I2C_AddrCallback(hi2c, TransferDirection, SlaveAddrCode); |
sahilmgandhi | 18:6a4db94011d3 | 4299 | |
sahilmgandhi | 18:6a4db94011d3 | 4300 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 4301 | } |
sahilmgandhi | 18:6a4db94011d3 | 4302 | |
sahilmgandhi | 18:6a4db94011d3 | 4303 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4304 | * @brief Handle STOPF flag for Slave |
sahilmgandhi | 18:6a4db94011d3 | 4305 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 4306 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 4307 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 4308 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4309 | static HAL_StatusTypeDef I2C_Slave_STOPF(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 4310 | { |
sahilmgandhi | 18:6a4db94011d3 | 4311 | /* Declaration of temporary variable to prevent undefined behavior of volatile usage */ |
sahilmgandhi | 18:6a4db94011d3 | 4312 | uint32_t CurrentState = hi2c->State; |
sahilmgandhi | 18:6a4db94011d3 | 4313 | |
sahilmgandhi | 18:6a4db94011d3 | 4314 | /* Disable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 4315 | __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 4316 | |
sahilmgandhi | 18:6a4db94011d3 | 4317 | /* Clear STOPF flag */ |
sahilmgandhi | 18:6a4db94011d3 | 4318 | __HAL_I2C_CLEAR_STOPFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4319 | |
sahilmgandhi | 18:6a4db94011d3 | 4320 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 4321 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 4322 | |
sahilmgandhi | 18:6a4db94011d3 | 4323 | if((CurrentState == HAL_I2C_STATE_LISTEN ) || (CurrentState == HAL_I2C_STATE_BUSY_RX_LISTEN) || \ |
sahilmgandhi | 18:6a4db94011d3 | 4324 | (CurrentState == HAL_I2C_STATE_BUSY_TX_LISTEN)) |
sahilmgandhi | 18:6a4db94011d3 | 4325 | { |
sahilmgandhi | 18:6a4db94011d3 | 4326 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 4327 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 4328 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 4329 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 4330 | |
sahilmgandhi | 18:6a4db94011d3 | 4331 | /* Call the Listen Complete callback, to inform upper layer of the end of Listen usecase */ |
sahilmgandhi | 18:6a4db94011d3 | 4332 | HAL_I2C_ListenCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4333 | } |
sahilmgandhi | 18:6a4db94011d3 | 4334 | else |
sahilmgandhi | 18:6a4db94011d3 | 4335 | { |
sahilmgandhi | 18:6a4db94011d3 | 4336 | if((hi2c->PreviousState == I2C_STATE_SLAVE_BUSY_RX) || (CurrentState == HAL_I2C_STATE_BUSY_RX)) |
sahilmgandhi | 18:6a4db94011d3 | 4337 | { |
sahilmgandhi | 18:6a4db94011d3 | 4338 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 4339 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 4340 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 4341 | |
sahilmgandhi | 18:6a4db94011d3 | 4342 | HAL_I2C_SlaveRxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4343 | } |
sahilmgandhi | 18:6a4db94011d3 | 4344 | } |
sahilmgandhi | 18:6a4db94011d3 | 4345 | |
sahilmgandhi | 18:6a4db94011d3 | 4346 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 4347 | } |
sahilmgandhi | 18:6a4db94011d3 | 4348 | |
sahilmgandhi | 18:6a4db94011d3 | 4349 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4350 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 4351 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 4352 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 4353 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4354 | static HAL_StatusTypeDef I2C_Slave_AF(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 4355 | { |
sahilmgandhi | 18:6a4db94011d3 | 4356 | /* Declaration of temporary variables to prevent undefined behavior of volatile usage */ |
sahilmgandhi | 18:6a4db94011d3 | 4357 | uint32_t CurrentState = hi2c->State; |
sahilmgandhi | 18:6a4db94011d3 | 4358 | uint32_t CurrentXferOptions = hi2c->XferOptions; |
sahilmgandhi | 18:6a4db94011d3 | 4359 | uint32_t tmp; |
sahilmgandhi | 18:6a4db94011d3 | 4360 | |
sahilmgandhi | 18:6a4db94011d3 | 4361 | if(((CurrentXferOptions == I2C_FIRST_AND_LAST_FRAME) || (CurrentXferOptions == I2C_LAST_FRAME)) && \ |
sahilmgandhi | 18:6a4db94011d3 | 4362 | (CurrentState == HAL_I2C_STATE_LISTEN)) |
sahilmgandhi | 18:6a4db94011d3 | 4363 | { |
sahilmgandhi | 18:6a4db94011d3 | 4364 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 4365 | |
sahilmgandhi | 18:6a4db94011d3 | 4366 | /* Disable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 4367 | __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 4368 | |
sahilmgandhi | 18:6a4db94011d3 | 4369 | /* Clear AF flag */ |
sahilmgandhi | 18:6a4db94011d3 | 4370 | __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); |
sahilmgandhi | 18:6a4db94011d3 | 4371 | |
sahilmgandhi | 18:6a4db94011d3 | 4372 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 4373 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 4374 | |
sahilmgandhi | 18:6a4db94011d3 | 4375 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 4376 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 4377 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 4378 | |
sahilmgandhi | 18:6a4db94011d3 | 4379 | /* Call the Listen Complete callback, to inform upper layer of the end of Listen usecase */ |
sahilmgandhi | 18:6a4db94011d3 | 4380 | HAL_I2C_ListenCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4381 | } |
sahilmgandhi | 18:6a4db94011d3 | 4382 | else if(CurrentState == HAL_I2C_STATE_BUSY_TX) |
sahilmgandhi | 18:6a4db94011d3 | 4383 | { |
sahilmgandhi | 18:6a4db94011d3 | 4384 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 4385 | tmp = (uint32_t)(hi2c->State) & I2C_STATE_MSK; |
sahilmgandhi | 18:6a4db94011d3 | 4386 | hi2c->PreviousState = tmp | (uint32_t)(hi2c->Mode); |
sahilmgandhi | 18:6a4db94011d3 | 4387 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 4388 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 4389 | |
sahilmgandhi | 18:6a4db94011d3 | 4390 | /* Disable EVT, BUF and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 4391 | __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 4392 | |
sahilmgandhi | 18:6a4db94011d3 | 4393 | /* Clear AF flag */ |
sahilmgandhi | 18:6a4db94011d3 | 4394 | __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); |
sahilmgandhi | 18:6a4db94011d3 | 4395 | |
sahilmgandhi | 18:6a4db94011d3 | 4396 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 4397 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 4398 | |
sahilmgandhi | 18:6a4db94011d3 | 4399 | HAL_I2C_SlaveTxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4400 | } |
sahilmgandhi | 18:6a4db94011d3 | 4401 | else |
sahilmgandhi | 18:6a4db94011d3 | 4402 | { |
sahilmgandhi | 18:6a4db94011d3 | 4403 | /* Clear AF flag only */ |
sahilmgandhi | 18:6a4db94011d3 | 4404 | /* State Listen, but XferOptions == FIRST or NEXT */ |
sahilmgandhi | 18:6a4db94011d3 | 4405 | __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); |
sahilmgandhi | 18:6a4db94011d3 | 4406 | } |
sahilmgandhi | 18:6a4db94011d3 | 4407 | |
sahilmgandhi | 18:6a4db94011d3 | 4408 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 4409 | } |
sahilmgandhi | 18:6a4db94011d3 | 4410 | |
sahilmgandhi | 18:6a4db94011d3 | 4411 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4412 | * @brief I2C interrupts error process |
sahilmgandhi | 18:6a4db94011d3 | 4413 | * @param hi2c I2C handle. |
sahilmgandhi | 18:6a4db94011d3 | 4414 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 4415 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4416 | static void I2C_ITError(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 4417 | { |
sahilmgandhi | 18:6a4db94011d3 | 4418 | /* Declaration of temporary variable to prevent undefined behavior of volatile usage */ |
sahilmgandhi | 18:6a4db94011d3 | 4419 | uint32_t CurrentState = hi2c->State; |
sahilmgandhi | 18:6a4db94011d3 | 4420 | |
sahilmgandhi | 18:6a4db94011d3 | 4421 | if((CurrentState == HAL_I2C_STATE_BUSY_TX_LISTEN) || (CurrentState == HAL_I2C_STATE_BUSY_RX_LISTEN)) |
sahilmgandhi | 18:6a4db94011d3 | 4422 | { |
sahilmgandhi | 18:6a4db94011d3 | 4423 | /* keep HAL_I2C_STATE_LISTEN */ |
sahilmgandhi | 18:6a4db94011d3 | 4424 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 4425 | hi2c->State = HAL_I2C_STATE_LISTEN; |
sahilmgandhi | 18:6a4db94011d3 | 4426 | } |
sahilmgandhi | 18:6a4db94011d3 | 4427 | else |
sahilmgandhi | 18:6a4db94011d3 | 4428 | { |
sahilmgandhi | 18:6a4db94011d3 | 4429 | /* If state is an abort treatment on going, don't change state */ |
sahilmgandhi | 18:6a4db94011d3 | 4430 | /* This change will be do later */ |
sahilmgandhi | 18:6a4db94011d3 | 4431 | if(hi2c->State != HAL_I2C_STATE_ABORT) |
sahilmgandhi | 18:6a4db94011d3 | 4432 | { |
sahilmgandhi | 18:6a4db94011d3 | 4433 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 4434 | } |
sahilmgandhi | 18:6a4db94011d3 | 4435 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 4436 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 4437 | } |
sahilmgandhi | 18:6a4db94011d3 | 4438 | |
sahilmgandhi | 18:6a4db94011d3 | 4439 | /* Disable Pos bit in I2C CR1 when error occurred in Master/Mem Receive IT Process */ |
sahilmgandhi | 18:6a4db94011d3 | 4440 | hi2c->Instance->CR1 &= ~I2C_CR1_POS; |
sahilmgandhi | 18:6a4db94011d3 | 4441 | |
sahilmgandhi | 18:6a4db94011d3 | 4442 | /* Abort DMA transfer */ |
sahilmgandhi | 18:6a4db94011d3 | 4443 | if((hi2c->Instance->CR1 & I2C_CR2_DMAEN) == I2C_CR2_DMAEN) |
sahilmgandhi | 18:6a4db94011d3 | 4444 | { |
sahilmgandhi | 18:6a4db94011d3 | 4445 | hi2c->Instance->CR2 &= ~I2C_CR2_DMAEN; |
sahilmgandhi | 18:6a4db94011d3 | 4446 | |
sahilmgandhi | 18:6a4db94011d3 | 4447 | if(hi2c->hdmatx != NULL) |
sahilmgandhi | 18:6a4db94011d3 | 4448 | { |
sahilmgandhi | 18:6a4db94011d3 | 4449 | /* Set the DMA Abort callback : |
sahilmgandhi | 18:6a4db94011d3 | 4450 | will lead to call HAL_I2C_ErrorCallback() at end of DMA abort procedure */ |
sahilmgandhi | 18:6a4db94011d3 | 4451 | hi2c->hdmatx->XferAbortCallback = I2C_DMAAbort; |
sahilmgandhi | 18:6a4db94011d3 | 4452 | |
sahilmgandhi | 18:6a4db94011d3 | 4453 | if(HAL_DMA_Abort_IT(hi2c->hdmatx) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4454 | { |
sahilmgandhi | 18:6a4db94011d3 | 4455 | /* Call Directly XferAbortCallback function in case of error */ |
sahilmgandhi | 18:6a4db94011d3 | 4456 | hi2c->hdmatx->XferAbortCallback(hi2c->hdmatx); |
sahilmgandhi | 18:6a4db94011d3 | 4457 | } |
sahilmgandhi | 18:6a4db94011d3 | 4458 | } |
sahilmgandhi | 18:6a4db94011d3 | 4459 | else if(hi2c->hdmarx != NULL) |
sahilmgandhi | 18:6a4db94011d3 | 4460 | { |
sahilmgandhi | 18:6a4db94011d3 | 4461 | /* Set the DMA Abort callback : |
sahilmgandhi | 18:6a4db94011d3 | 4462 | will lead to call HAL_I2C_ErrorCallback() at end of DMA abort procedure */ |
sahilmgandhi | 18:6a4db94011d3 | 4463 | hi2c->hdmarx->XferAbortCallback = I2C_DMAAbort; |
sahilmgandhi | 18:6a4db94011d3 | 4464 | |
sahilmgandhi | 18:6a4db94011d3 | 4465 | if(HAL_DMA_Abort_IT(hi2c->hdmarx) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4466 | { |
sahilmgandhi | 18:6a4db94011d3 | 4467 | /* Call Directly hi2c->hdmarx->XferAbortCallback function in case of error */ |
sahilmgandhi | 18:6a4db94011d3 | 4468 | hi2c->hdmarx->XferAbortCallback(hi2c->hdmarx); |
sahilmgandhi | 18:6a4db94011d3 | 4469 | } |
sahilmgandhi | 18:6a4db94011d3 | 4470 | } |
sahilmgandhi | 18:6a4db94011d3 | 4471 | } |
sahilmgandhi | 18:6a4db94011d3 | 4472 | else if(hi2c->State == HAL_I2C_STATE_ABORT) |
sahilmgandhi | 18:6a4db94011d3 | 4473 | { |
sahilmgandhi | 18:6a4db94011d3 | 4474 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 4475 | |
sahilmgandhi | 18:6a4db94011d3 | 4476 | /* Call the corresponding callback to inform upper layer of End of Transfer */ |
sahilmgandhi | 18:6a4db94011d3 | 4477 | HAL_I2C_AbortCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4478 | } |
sahilmgandhi | 18:6a4db94011d3 | 4479 | else |
sahilmgandhi | 18:6a4db94011d3 | 4480 | { |
sahilmgandhi | 18:6a4db94011d3 | 4481 | /* Call user error callback */ |
sahilmgandhi | 18:6a4db94011d3 | 4482 | HAL_I2C_ErrorCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4483 | } |
sahilmgandhi | 18:6a4db94011d3 | 4484 | /* STOP Flag is not set after a NACK reception */ |
sahilmgandhi | 18:6a4db94011d3 | 4485 | /* So may inform upper layer that listen phase is stopped */ |
sahilmgandhi | 18:6a4db94011d3 | 4486 | /* during NACK error treatment */ |
sahilmgandhi | 18:6a4db94011d3 | 4487 | if((hi2c->State == HAL_I2C_STATE_LISTEN) && ((hi2c->ErrorCode & HAL_I2C_ERROR_AF) == HAL_I2C_ERROR_AF)) |
sahilmgandhi | 18:6a4db94011d3 | 4488 | { |
sahilmgandhi | 18:6a4db94011d3 | 4489 | hi2c->XferOptions = I2C_NO_OPTION_FRAME; |
sahilmgandhi | 18:6a4db94011d3 | 4490 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 4491 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 4492 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 4493 | |
sahilmgandhi | 18:6a4db94011d3 | 4494 | /* Call the Listen Complete callback, to inform upper layer of the end of Listen usecase */ |
sahilmgandhi | 18:6a4db94011d3 | 4495 | HAL_I2C_ListenCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4496 | } |
sahilmgandhi | 18:6a4db94011d3 | 4497 | } |
sahilmgandhi | 18:6a4db94011d3 | 4498 | |
sahilmgandhi | 18:6a4db94011d3 | 4499 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4500 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 4501 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 4502 | * @param DevAddress Target device address: The device 7 bits address value |
sahilmgandhi | 18:6a4db94011d3 | 4503 | * in datasheet must be shift at right before call interface |
sahilmgandhi | 18:6a4db94011d3 | 4504 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 4505 | * @param Tickstart Tick start value |
sahilmgandhi | 18:6a4db94011d3 | 4506 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 4507 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4508 | static HAL_StatusTypeDef I2C_MasterRequestWrite(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Timeout, uint32_t Tickstart) |
sahilmgandhi | 18:6a4db94011d3 | 4509 | { |
sahilmgandhi | 18:6a4db94011d3 | 4510 | /* Declaration of temporary variable to prevent undefined behavior of volatile usage */ |
sahilmgandhi | 18:6a4db94011d3 | 4511 | uint32_t CurrentXferOptions = hi2c->XferOptions; |
sahilmgandhi | 18:6a4db94011d3 | 4512 | |
sahilmgandhi | 18:6a4db94011d3 | 4513 | /* Generate Start condition if first transfer */ |
sahilmgandhi | 18:6a4db94011d3 | 4514 | if((CurrentXferOptions == I2C_FIRST_AND_LAST_FRAME) || (CurrentXferOptions == I2C_FIRST_FRAME) || (CurrentXferOptions == I2C_NO_OPTION_FRAME)) |
sahilmgandhi | 18:6a4db94011d3 | 4515 | { |
sahilmgandhi | 18:6a4db94011d3 | 4516 | /* Generate Start */ |
sahilmgandhi | 18:6a4db94011d3 | 4517 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 4518 | } |
sahilmgandhi | 18:6a4db94011d3 | 4519 | else if(hi2c->PreviousState == I2C_STATE_MASTER_BUSY_RX) |
sahilmgandhi | 18:6a4db94011d3 | 4520 | { |
sahilmgandhi | 18:6a4db94011d3 | 4521 | /* Generate ReStart */ |
sahilmgandhi | 18:6a4db94011d3 | 4522 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 4523 | } |
sahilmgandhi | 18:6a4db94011d3 | 4524 | |
sahilmgandhi | 18:6a4db94011d3 | 4525 | /* Wait until SB flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4526 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_SB, RESET, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4527 | { |
sahilmgandhi | 18:6a4db94011d3 | 4528 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4529 | } |
sahilmgandhi | 18:6a4db94011d3 | 4530 | |
sahilmgandhi | 18:6a4db94011d3 | 4531 | if(hi2c->Init.AddressingMode == I2C_ADDRESSINGMODE_7BIT) |
sahilmgandhi | 18:6a4db94011d3 | 4532 | { |
sahilmgandhi | 18:6a4db94011d3 | 4533 | /* Send slave address */ |
sahilmgandhi | 18:6a4db94011d3 | 4534 | hi2c->Instance->DR = I2C_7BIT_ADD_WRITE(DevAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4535 | } |
sahilmgandhi | 18:6a4db94011d3 | 4536 | else |
sahilmgandhi | 18:6a4db94011d3 | 4537 | { |
sahilmgandhi | 18:6a4db94011d3 | 4538 | /* Send header of slave address */ |
sahilmgandhi | 18:6a4db94011d3 | 4539 | hi2c->Instance->DR = I2C_10BIT_HEADER_WRITE(DevAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4540 | |
sahilmgandhi | 18:6a4db94011d3 | 4541 | /* Wait until ADD10 flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4542 | if(I2C_WaitOnMasterAddressFlagUntilTimeout(hi2c, I2C_FLAG_ADD10, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4543 | { |
sahilmgandhi | 18:6a4db94011d3 | 4544 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 4545 | { |
sahilmgandhi | 18:6a4db94011d3 | 4546 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 4547 | } |
sahilmgandhi | 18:6a4db94011d3 | 4548 | else |
sahilmgandhi | 18:6a4db94011d3 | 4549 | { |
sahilmgandhi | 18:6a4db94011d3 | 4550 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4551 | } |
sahilmgandhi | 18:6a4db94011d3 | 4552 | } |
sahilmgandhi | 18:6a4db94011d3 | 4553 | |
sahilmgandhi | 18:6a4db94011d3 | 4554 | /* Send slave address */ |
sahilmgandhi | 18:6a4db94011d3 | 4555 | hi2c->Instance->DR = I2C_10BIT_ADDRESS(DevAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4556 | } |
sahilmgandhi | 18:6a4db94011d3 | 4557 | |
sahilmgandhi | 18:6a4db94011d3 | 4558 | /* Wait until ADDR flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4559 | if(I2C_WaitOnMasterAddressFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4560 | { |
sahilmgandhi | 18:6a4db94011d3 | 4561 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 4562 | { |
sahilmgandhi | 18:6a4db94011d3 | 4563 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 4564 | } |
sahilmgandhi | 18:6a4db94011d3 | 4565 | else |
sahilmgandhi | 18:6a4db94011d3 | 4566 | { |
sahilmgandhi | 18:6a4db94011d3 | 4567 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4568 | } |
sahilmgandhi | 18:6a4db94011d3 | 4569 | } |
sahilmgandhi | 18:6a4db94011d3 | 4570 | |
sahilmgandhi | 18:6a4db94011d3 | 4571 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 4572 | } |
sahilmgandhi | 18:6a4db94011d3 | 4573 | |
sahilmgandhi | 18:6a4db94011d3 | 4574 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4575 | * @brief Master sends target device address for read request. |
sahilmgandhi | 18:6a4db94011d3 | 4576 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 4577 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 4578 | * @param DevAddress Target device address: The device 7 bits address value |
sahilmgandhi | 18:6a4db94011d3 | 4579 | * in datasheet must be shift at right before call interface |
sahilmgandhi | 18:6a4db94011d3 | 4580 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 4581 | * @param Tickstart Tick start value |
sahilmgandhi | 18:6a4db94011d3 | 4582 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 4583 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4584 | static HAL_StatusTypeDef I2C_MasterRequestRead(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Timeout, uint32_t Tickstart) |
sahilmgandhi | 18:6a4db94011d3 | 4585 | { |
sahilmgandhi | 18:6a4db94011d3 | 4586 | /* Declaration of temporary variable to prevent undefined behavior of volatile usage */ |
sahilmgandhi | 18:6a4db94011d3 | 4587 | uint32_t CurrentXferOptions = hi2c->XferOptions; |
sahilmgandhi | 18:6a4db94011d3 | 4588 | |
sahilmgandhi | 18:6a4db94011d3 | 4589 | /* Generate Start condition if first transfer */ |
sahilmgandhi | 18:6a4db94011d3 | 4590 | if((CurrentXferOptions == I2C_FIRST_AND_LAST_FRAME) || (CurrentXferOptions == I2C_FIRST_FRAME) || (CurrentXferOptions == I2C_NO_OPTION_FRAME)) |
sahilmgandhi | 18:6a4db94011d3 | 4591 | { |
sahilmgandhi | 18:6a4db94011d3 | 4592 | /* Enable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 4593 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 4594 | |
sahilmgandhi | 18:6a4db94011d3 | 4595 | /* Generate Start */ |
sahilmgandhi | 18:6a4db94011d3 | 4596 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 4597 | } |
sahilmgandhi | 18:6a4db94011d3 | 4598 | else if(hi2c->PreviousState == I2C_STATE_MASTER_BUSY_TX) |
sahilmgandhi | 18:6a4db94011d3 | 4599 | { |
sahilmgandhi | 18:6a4db94011d3 | 4600 | /* Enable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 4601 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 4602 | |
sahilmgandhi | 18:6a4db94011d3 | 4603 | /* Generate ReStart */ |
sahilmgandhi | 18:6a4db94011d3 | 4604 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 4605 | } |
sahilmgandhi | 18:6a4db94011d3 | 4606 | |
sahilmgandhi | 18:6a4db94011d3 | 4607 | /* Wait until SB flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4608 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_SB, RESET, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4609 | { |
sahilmgandhi | 18:6a4db94011d3 | 4610 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4611 | } |
sahilmgandhi | 18:6a4db94011d3 | 4612 | |
sahilmgandhi | 18:6a4db94011d3 | 4613 | if(hi2c->Init.AddressingMode == I2C_ADDRESSINGMODE_7BIT) |
sahilmgandhi | 18:6a4db94011d3 | 4614 | { |
sahilmgandhi | 18:6a4db94011d3 | 4615 | /* Send slave address */ |
sahilmgandhi | 18:6a4db94011d3 | 4616 | hi2c->Instance->DR = I2C_7BIT_ADD_READ(DevAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4617 | } |
sahilmgandhi | 18:6a4db94011d3 | 4618 | else |
sahilmgandhi | 18:6a4db94011d3 | 4619 | { |
sahilmgandhi | 18:6a4db94011d3 | 4620 | /* Send header of slave address */ |
sahilmgandhi | 18:6a4db94011d3 | 4621 | hi2c->Instance->DR = I2C_10BIT_HEADER_WRITE(DevAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4622 | |
sahilmgandhi | 18:6a4db94011d3 | 4623 | /* Wait until ADD10 flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4624 | if(I2C_WaitOnMasterAddressFlagUntilTimeout(hi2c, I2C_FLAG_ADD10, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4625 | { |
sahilmgandhi | 18:6a4db94011d3 | 4626 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 4627 | { |
sahilmgandhi | 18:6a4db94011d3 | 4628 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 4629 | } |
sahilmgandhi | 18:6a4db94011d3 | 4630 | else |
sahilmgandhi | 18:6a4db94011d3 | 4631 | { |
sahilmgandhi | 18:6a4db94011d3 | 4632 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4633 | } |
sahilmgandhi | 18:6a4db94011d3 | 4634 | } |
sahilmgandhi | 18:6a4db94011d3 | 4635 | |
sahilmgandhi | 18:6a4db94011d3 | 4636 | /* Send slave address */ |
sahilmgandhi | 18:6a4db94011d3 | 4637 | hi2c->Instance->DR = I2C_10BIT_ADDRESS(DevAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4638 | |
sahilmgandhi | 18:6a4db94011d3 | 4639 | /* Wait until ADDR flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4640 | if(I2C_WaitOnMasterAddressFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4641 | { |
sahilmgandhi | 18:6a4db94011d3 | 4642 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 4643 | { |
sahilmgandhi | 18:6a4db94011d3 | 4644 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 4645 | } |
sahilmgandhi | 18:6a4db94011d3 | 4646 | else |
sahilmgandhi | 18:6a4db94011d3 | 4647 | { |
sahilmgandhi | 18:6a4db94011d3 | 4648 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4649 | } |
sahilmgandhi | 18:6a4db94011d3 | 4650 | } |
sahilmgandhi | 18:6a4db94011d3 | 4651 | |
sahilmgandhi | 18:6a4db94011d3 | 4652 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 4653 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4654 | |
sahilmgandhi | 18:6a4db94011d3 | 4655 | /* Generate Restart */ |
sahilmgandhi | 18:6a4db94011d3 | 4656 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 4657 | |
sahilmgandhi | 18:6a4db94011d3 | 4658 | /* Wait until SB flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4659 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_SB, RESET, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4660 | { |
sahilmgandhi | 18:6a4db94011d3 | 4661 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4662 | } |
sahilmgandhi | 18:6a4db94011d3 | 4663 | |
sahilmgandhi | 18:6a4db94011d3 | 4664 | /* Send header of slave address */ |
sahilmgandhi | 18:6a4db94011d3 | 4665 | hi2c->Instance->DR = I2C_10BIT_HEADER_READ(DevAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4666 | } |
sahilmgandhi | 18:6a4db94011d3 | 4667 | |
sahilmgandhi | 18:6a4db94011d3 | 4668 | /* Wait until ADDR flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4669 | if(I2C_WaitOnMasterAddressFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4670 | { |
sahilmgandhi | 18:6a4db94011d3 | 4671 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 4672 | { |
sahilmgandhi | 18:6a4db94011d3 | 4673 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 4674 | } |
sahilmgandhi | 18:6a4db94011d3 | 4675 | else |
sahilmgandhi | 18:6a4db94011d3 | 4676 | { |
sahilmgandhi | 18:6a4db94011d3 | 4677 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4678 | } |
sahilmgandhi | 18:6a4db94011d3 | 4679 | } |
sahilmgandhi | 18:6a4db94011d3 | 4680 | |
sahilmgandhi | 18:6a4db94011d3 | 4681 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 4682 | } |
sahilmgandhi | 18:6a4db94011d3 | 4683 | |
sahilmgandhi | 18:6a4db94011d3 | 4684 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4685 | * @brief Master sends target device address followed by internal memory address for write request. |
sahilmgandhi | 18:6a4db94011d3 | 4686 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 4687 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 4688 | * @param DevAddress Target device address |
sahilmgandhi | 18:6a4db94011d3 | 4689 | * @param MemAddress Internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 4690 | * @param MemAddSize Size of internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 4691 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 4692 | * @param Tickstart Tick start value |
sahilmgandhi | 18:6a4db94011d3 | 4693 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 4694 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4695 | static HAL_StatusTypeDef I2C_RequestMemoryWrite(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint32_t Timeout, uint32_t Tickstart) |
sahilmgandhi | 18:6a4db94011d3 | 4696 | { |
sahilmgandhi | 18:6a4db94011d3 | 4697 | /* Generate Start */ |
sahilmgandhi | 18:6a4db94011d3 | 4698 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 4699 | |
sahilmgandhi | 18:6a4db94011d3 | 4700 | /* Wait until SB flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4701 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_SB, RESET, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4702 | { |
sahilmgandhi | 18:6a4db94011d3 | 4703 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4704 | } |
sahilmgandhi | 18:6a4db94011d3 | 4705 | |
sahilmgandhi | 18:6a4db94011d3 | 4706 | /* Send slave address */ |
sahilmgandhi | 18:6a4db94011d3 | 4707 | hi2c->Instance->DR = I2C_7BIT_ADD_WRITE(DevAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4708 | |
sahilmgandhi | 18:6a4db94011d3 | 4709 | /* Wait until ADDR flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4710 | if(I2C_WaitOnMasterAddressFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4711 | { |
sahilmgandhi | 18:6a4db94011d3 | 4712 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 4713 | { |
sahilmgandhi | 18:6a4db94011d3 | 4714 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 4715 | } |
sahilmgandhi | 18:6a4db94011d3 | 4716 | else |
sahilmgandhi | 18:6a4db94011d3 | 4717 | { |
sahilmgandhi | 18:6a4db94011d3 | 4718 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4719 | } |
sahilmgandhi | 18:6a4db94011d3 | 4720 | } |
sahilmgandhi | 18:6a4db94011d3 | 4721 | |
sahilmgandhi | 18:6a4db94011d3 | 4722 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 4723 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4724 | |
sahilmgandhi | 18:6a4db94011d3 | 4725 | /* Wait until TXE flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4726 | if(I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4727 | { |
sahilmgandhi | 18:6a4db94011d3 | 4728 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 4729 | { |
sahilmgandhi | 18:6a4db94011d3 | 4730 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 4731 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 4732 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 4733 | } |
sahilmgandhi | 18:6a4db94011d3 | 4734 | else |
sahilmgandhi | 18:6a4db94011d3 | 4735 | { |
sahilmgandhi | 18:6a4db94011d3 | 4736 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4737 | } |
sahilmgandhi | 18:6a4db94011d3 | 4738 | } |
sahilmgandhi | 18:6a4db94011d3 | 4739 | |
sahilmgandhi | 18:6a4db94011d3 | 4740 | /* If Memory address size is 8Bit */ |
sahilmgandhi | 18:6a4db94011d3 | 4741 | if(MemAddSize == I2C_MEMADD_SIZE_8BIT) |
sahilmgandhi | 18:6a4db94011d3 | 4742 | { |
sahilmgandhi | 18:6a4db94011d3 | 4743 | /* Send Memory Address */ |
sahilmgandhi | 18:6a4db94011d3 | 4744 | hi2c->Instance->DR = I2C_MEM_ADD_LSB(MemAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4745 | } |
sahilmgandhi | 18:6a4db94011d3 | 4746 | /* If Memory address size is 16Bit */ |
sahilmgandhi | 18:6a4db94011d3 | 4747 | else |
sahilmgandhi | 18:6a4db94011d3 | 4748 | { |
sahilmgandhi | 18:6a4db94011d3 | 4749 | /* Send MSB of Memory Address */ |
sahilmgandhi | 18:6a4db94011d3 | 4750 | hi2c->Instance->DR = I2C_MEM_ADD_MSB(MemAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4751 | |
sahilmgandhi | 18:6a4db94011d3 | 4752 | /* Wait until TXE flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4753 | if(I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4754 | { |
sahilmgandhi | 18:6a4db94011d3 | 4755 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 4756 | { |
sahilmgandhi | 18:6a4db94011d3 | 4757 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 4758 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 4759 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 4760 | } |
sahilmgandhi | 18:6a4db94011d3 | 4761 | else |
sahilmgandhi | 18:6a4db94011d3 | 4762 | { |
sahilmgandhi | 18:6a4db94011d3 | 4763 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4764 | } |
sahilmgandhi | 18:6a4db94011d3 | 4765 | } |
sahilmgandhi | 18:6a4db94011d3 | 4766 | |
sahilmgandhi | 18:6a4db94011d3 | 4767 | /* Send LSB of Memory Address */ |
sahilmgandhi | 18:6a4db94011d3 | 4768 | hi2c->Instance->DR = I2C_MEM_ADD_LSB(MemAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4769 | } |
sahilmgandhi | 18:6a4db94011d3 | 4770 | |
sahilmgandhi | 18:6a4db94011d3 | 4771 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 4772 | } |
sahilmgandhi | 18:6a4db94011d3 | 4773 | |
sahilmgandhi | 18:6a4db94011d3 | 4774 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4775 | * @brief Master sends target device address followed by internal memory address for read request. |
sahilmgandhi | 18:6a4db94011d3 | 4776 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 4777 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 4778 | * @param DevAddress Target device address |
sahilmgandhi | 18:6a4db94011d3 | 4779 | * @param MemAddress Internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 4780 | * @param MemAddSize Size of internal memory address |
sahilmgandhi | 18:6a4db94011d3 | 4781 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 4782 | * @param Tickstart Tick start value |
sahilmgandhi | 18:6a4db94011d3 | 4783 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 4784 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4785 | static HAL_StatusTypeDef I2C_RequestMemoryRead(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint32_t Timeout, uint32_t Tickstart) |
sahilmgandhi | 18:6a4db94011d3 | 4786 | { |
sahilmgandhi | 18:6a4db94011d3 | 4787 | /* Enable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 4788 | hi2c->Instance->CR1 |= I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 4789 | |
sahilmgandhi | 18:6a4db94011d3 | 4790 | /* Generate Start */ |
sahilmgandhi | 18:6a4db94011d3 | 4791 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 4792 | |
sahilmgandhi | 18:6a4db94011d3 | 4793 | /* Wait until SB flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4794 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_SB, RESET, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4795 | { |
sahilmgandhi | 18:6a4db94011d3 | 4796 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4797 | } |
sahilmgandhi | 18:6a4db94011d3 | 4798 | |
sahilmgandhi | 18:6a4db94011d3 | 4799 | /* Send slave address */ |
sahilmgandhi | 18:6a4db94011d3 | 4800 | hi2c->Instance->DR = I2C_7BIT_ADD_WRITE(DevAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4801 | |
sahilmgandhi | 18:6a4db94011d3 | 4802 | /* Wait until ADDR flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4803 | if(I2C_WaitOnMasterAddressFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4804 | { |
sahilmgandhi | 18:6a4db94011d3 | 4805 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 4806 | { |
sahilmgandhi | 18:6a4db94011d3 | 4807 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 4808 | } |
sahilmgandhi | 18:6a4db94011d3 | 4809 | else |
sahilmgandhi | 18:6a4db94011d3 | 4810 | { |
sahilmgandhi | 18:6a4db94011d3 | 4811 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4812 | } |
sahilmgandhi | 18:6a4db94011d3 | 4813 | } |
sahilmgandhi | 18:6a4db94011d3 | 4814 | |
sahilmgandhi | 18:6a4db94011d3 | 4815 | /* Clear ADDR flag */ |
sahilmgandhi | 18:6a4db94011d3 | 4816 | __HAL_I2C_CLEAR_ADDRFLAG(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4817 | |
sahilmgandhi | 18:6a4db94011d3 | 4818 | /* Wait until TXE flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4819 | if(I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4820 | { |
sahilmgandhi | 18:6a4db94011d3 | 4821 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 4822 | { |
sahilmgandhi | 18:6a4db94011d3 | 4823 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 4824 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 4825 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 4826 | } |
sahilmgandhi | 18:6a4db94011d3 | 4827 | else |
sahilmgandhi | 18:6a4db94011d3 | 4828 | { |
sahilmgandhi | 18:6a4db94011d3 | 4829 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4830 | } |
sahilmgandhi | 18:6a4db94011d3 | 4831 | } |
sahilmgandhi | 18:6a4db94011d3 | 4832 | |
sahilmgandhi | 18:6a4db94011d3 | 4833 | /* If Memory address size is 8Bit */ |
sahilmgandhi | 18:6a4db94011d3 | 4834 | if(MemAddSize == I2C_MEMADD_SIZE_8BIT) |
sahilmgandhi | 18:6a4db94011d3 | 4835 | { |
sahilmgandhi | 18:6a4db94011d3 | 4836 | /* Send Memory Address */ |
sahilmgandhi | 18:6a4db94011d3 | 4837 | hi2c->Instance->DR = I2C_MEM_ADD_LSB(MemAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4838 | } |
sahilmgandhi | 18:6a4db94011d3 | 4839 | /* If Memory address size is 16Bit */ |
sahilmgandhi | 18:6a4db94011d3 | 4840 | else |
sahilmgandhi | 18:6a4db94011d3 | 4841 | { |
sahilmgandhi | 18:6a4db94011d3 | 4842 | /* Send MSB of Memory Address */ |
sahilmgandhi | 18:6a4db94011d3 | 4843 | hi2c->Instance->DR = I2C_MEM_ADD_MSB(MemAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4844 | |
sahilmgandhi | 18:6a4db94011d3 | 4845 | /* Wait until TXE flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4846 | if(I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4847 | { |
sahilmgandhi | 18:6a4db94011d3 | 4848 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 4849 | { |
sahilmgandhi | 18:6a4db94011d3 | 4850 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 4851 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 4852 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 4853 | } |
sahilmgandhi | 18:6a4db94011d3 | 4854 | else |
sahilmgandhi | 18:6a4db94011d3 | 4855 | { |
sahilmgandhi | 18:6a4db94011d3 | 4856 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4857 | } |
sahilmgandhi | 18:6a4db94011d3 | 4858 | } |
sahilmgandhi | 18:6a4db94011d3 | 4859 | |
sahilmgandhi | 18:6a4db94011d3 | 4860 | /* Send LSB of Memory Address */ |
sahilmgandhi | 18:6a4db94011d3 | 4861 | hi2c->Instance->DR = I2C_MEM_ADD_LSB(MemAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4862 | } |
sahilmgandhi | 18:6a4db94011d3 | 4863 | |
sahilmgandhi | 18:6a4db94011d3 | 4864 | /* Wait until TXE flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4865 | if(I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4866 | { |
sahilmgandhi | 18:6a4db94011d3 | 4867 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 4868 | { |
sahilmgandhi | 18:6a4db94011d3 | 4869 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 4870 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 4871 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 4872 | } |
sahilmgandhi | 18:6a4db94011d3 | 4873 | else |
sahilmgandhi | 18:6a4db94011d3 | 4874 | { |
sahilmgandhi | 18:6a4db94011d3 | 4875 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4876 | } |
sahilmgandhi | 18:6a4db94011d3 | 4877 | } |
sahilmgandhi | 18:6a4db94011d3 | 4878 | |
sahilmgandhi | 18:6a4db94011d3 | 4879 | /* Generate Restart */ |
sahilmgandhi | 18:6a4db94011d3 | 4880 | hi2c->Instance->CR1 |= I2C_CR1_START; |
sahilmgandhi | 18:6a4db94011d3 | 4881 | |
sahilmgandhi | 18:6a4db94011d3 | 4882 | /* Wait until SB flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4883 | if(I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_SB, RESET, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4884 | { |
sahilmgandhi | 18:6a4db94011d3 | 4885 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4886 | } |
sahilmgandhi | 18:6a4db94011d3 | 4887 | |
sahilmgandhi | 18:6a4db94011d3 | 4888 | /* Send slave address */ |
sahilmgandhi | 18:6a4db94011d3 | 4889 | hi2c->Instance->DR = I2C_7BIT_ADD_READ(DevAddress); |
sahilmgandhi | 18:6a4db94011d3 | 4890 | |
sahilmgandhi | 18:6a4db94011d3 | 4891 | /* Wait until ADDR flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 4892 | if(I2C_WaitOnMasterAddressFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, Timeout, Tickstart) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 4893 | { |
sahilmgandhi | 18:6a4db94011d3 | 4894 | if(hi2c->ErrorCode == HAL_I2C_ERROR_AF) |
sahilmgandhi | 18:6a4db94011d3 | 4895 | { |
sahilmgandhi | 18:6a4db94011d3 | 4896 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 4897 | } |
sahilmgandhi | 18:6a4db94011d3 | 4898 | else |
sahilmgandhi | 18:6a4db94011d3 | 4899 | { |
sahilmgandhi | 18:6a4db94011d3 | 4900 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 4901 | } |
sahilmgandhi | 18:6a4db94011d3 | 4902 | } |
sahilmgandhi | 18:6a4db94011d3 | 4903 | |
sahilmgandhi | 18:6a4db94011d3 | 4904 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 4905 | } |
sahilmgandhi | 18:6a4db94011d3 | 4906 | |
sahilmgandhi | 18:6a4db94011d3 | 4907 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4908 | * @brief DMA I2C process complete callback. |
sahilmgandhi | 18:6a4db94011d3 | 4909 | * @param hdma DMA handle |
sahilmgandhi | 18:6a4db94011d3 | 4910 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 4911 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4912 | static void I2C_DMAXferCplt(DMA_HandleTypeDef *hdma) |
sahilmgandhi | 18:6a4db94011d3 | 4913 | { |
sahilmgandhi | 18:6a4db94011d3 | 4914 | I2C_HandleTypeDef* hi2c = (I2C_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent; |
sahilmgandhi | 18:6a4db94011d3 | 4915 | |
sahilmgandhi | 18:6a4db94011d3 | 4916 | /* Declaration of temporary variable to prevent undefined behavior of volatile usage */ |
sahilmgandhi | 18:6a4db94011d3 | 4917 | uint32_t CurrentState = hi2c->State; |
sahilmgandhi | 18:6a4db94011d3 | 4918 | uint32_t CurrentMode = hi2c->Mode; |
sahilmgandhi | 18:6a4db94011d3 | 4919 | |
sahilmgandhi | 18:6a4db94011d3 | 4920 | if((CurrentState == HAL_I2C_STATE_BUSY_TX) || ((CurrentState == HAL_I2C_STATE_BUSY_RX) && (CurrentMode == HAL_I2C_MODE_SLAVE))) |
sahilmgandhi | 18:6a4db94011d3 | 4921 | { |
sahilmgandhi | 18:6a4db94011d3 | 4922 | /* Disable DMA Request */ |
sahilmgandhi | 18:6a4db94011d3 | 4923 | hi2c->Instance->CR2 &= ~I2C_CR2_DMAEN; |
sahilmgandhi | 18:6a4db94011d3 | 4924 | |
sahilmgandhi | 18:6a4db94011d3 | 4925 | hi2c->XferCount = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 4926 | |
sahilmgandhi | 18:6a4db94011d3 | 4927 | /* Enable EVT and ERR interrupt */ |
sahilmgandhi | 18:6a4db94011d3 | 4928 | __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_ERR); |
sahilmgandhi | 18:6a4db94011d3 | 4929 | } |
sahilmgandhi | 18:6a4db94011d3 | 4930 | else |
sahilmgandhi | 18:6a4db94011d3 | 4931 | { |
sahilmgandhi | 18:6a4db94011d3 | 4932 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 4933 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 4934 | |
sahilmgandhi | 18:6a4db94011d3 | 4935 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 4936 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 4937 | |
sahilmgandhi | 18:6a4db94011d3 | 4938 | /* Disable Last DMA */ |
sahilmgandhi | 18:6a4db94011d3 | 4939 | hi2c->Instance->CR2 &= ~I2C_CR2_LAST; |
sahilmgandhi | 18:6a4db94011d3 | 4940 | |
sahilmgandhi | 18:6a4db94011d3 | 4941 | /* Disable DMA Request */ |
sahilmgandhi | 18:6a4db94011d3 | 4942 | hi2c->Instance->CR2 &= ~I2C_CR2_DMAEN; |
sahilmgandhi | 18:6a4db94011d3 | 4943 | |
sahilmgandhi | 18:6a4db94011d3 | 4944 | hi2c->XferCount = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 4945 | |
sahilmgandhi | 18:6a4db94011d3 | 4946 | /* Check if Errors has been detected during transfer */ |
sahilmgandhi | 18:6a4db94011d3 | 4947 | if(hi2c->ErrorCode != HAL_I2C_ERROR_NONE) |
sahilmgandhi | 18:6a4db94011d3 | 4948 | { |
sahilmgandhi | 18:6a4db94011d3 | 4949 | HAL_I2C_ErrorCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4950 | } |
sahilmgandhi | 18:6a4db94011d3 | 4951 | else |
sahilmgandhi | 18:6a4db94011d3 | 4952 | { |
sahilmgandhi | 18:6a4db94011d3 | 4953 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 4954 | |
sahilmgandhi | 18:6a4db94011d3 | 4955 | if(hi2c->Mode == HAL_I2C_MODE_MEM) |
sahilmgandhi | 18:6a4db94011d3 | 4956 | { |
sahilmgandhi | 18:6a4db94011d3 | 4957 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 4958 | |
sahilmgandhi | 18:6a4db94011d3 | 4959 | HAL_I2C_MemRxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4960 | } |
sahilmgandhi | 18:6a4db94011d3 | 4961 | else |
sahilmgandhi | 18:6a4db94011d3 | 4962 | { |
sahilmgandhi | 18:6a4db94011d3 | 4963 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 4964 | |
sahilmgandhi | 18:6a4db94011d3 | 4965 | HAL_I2C_MasterRxCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4966 | } |
sahilmgandhi | 18:6a4db94011d3 | 4967 | } |
sahilmgandhi | 18:6a4db94011d3 | 4968 | } |
sahilmgandhi | 18:6a4db94011d3 | 4969 | } |
sahilmgandhi | 18:6a4db94011d3 | 4970 | |
sahilmgandhi | 18:6a4db94011d3 | 4971 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4972 | * @brief DMA I2C communication error callback. |
sahilmgandhi | 18:6a4db94011d3 | 4973 | * @param hdma DMA handle |
sahilmgandhi | 18:6a4db94011d3 | 4974 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 4975 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4976 | static void I2C_DMAError(DMA_HandleTypeDef *hdma) |
sahilmgandhi | 18:6a4db94011d3 | 4977 | { |
sahilmgandhi | 18:6a4db94011d3 | 4978 | I2C_HandleTypeDef* hi2c = (I2C_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent; |
sahilmgandhi | 18:6a4db94011d3 | 4979 | |
sahilmgandhi | 18:6a4db94011d3 | 4980 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 4981 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 4982 | |
sahilmgandhi | 18:6a4db94011d3 | 4983 | hi2c->XferCount = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 4984 | |
sahilmgandhi | 18:6a4db94011d3 | 4985 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 4986 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 4987 | |
sahilmgandhi | 18:6a4db94011d3 | 4988 | hi2c->ErrorCode |= HAL_I2C_ERROR_DMA; |
sahilmgandhi | 18:6a4db94011d3 | 4989 | |
sahilmgandhi | 18:6a4db94011d3 | 4990 | HAL_I2C_ErrorCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 4991 | } |
sahilmgandhi | 18:6a4db94011d3 | 4992 | |
sahilmgandhi | 18:6a4db94011d3 | 4993 | /** |
sahilmgandhi | 18:6a4db94011d3 | 4994 | * @brief DMA I2C communication abort callback |
sahilmgandhi | 18:6a4db94011d3 | 4995 | * (To be called at end of DMA Abort procedure). |
sahilmgandhi | 18:6a4db94011d3 | 4996 | * @param hdma: DMA handle. |
sahilmgandhi | 18:6a4db94011d3 | 4997 | * @retval None |
sahilmgandhi | 18:6a4db94011d3 | 4998 | */ |
sahilmgandhi | 18:6a4db94011d3 | 4999 | static void I2C_DMAAbort(DMA_HandleTypeDef *hdma) |
sahilmgandhi | 18:6a4db94011d3 | 5000 | { |
sahilmgandhi | 18:6a4db94011d3 | 5001 | I2C_HandleTypeDef* hi2c = ( I2C_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
sahilmgandhi | 18:6a4db94011d3 | 5002 | |
sahilmgandhi | 18:6a4db94011d3 | 5003 | /* Disable Acknowledge */ |
sahilmgandhi | 18:6a4db94011d3 | 5004 | hi2c->Instance->CR1 &= ~I2C_CR1_ACK; |
sahilmgandhi | 18:6a4db94011d3 | 5005 | |
sahilmgandhi | 18:6a4db94011d3 | 5006 | hi2c->XferCount = 0U; |
sahilmgandhi | 18:6a4db94011d3 | 5007 | |
sahilmgandhi | 18:6a4db94011d3 | 5008 | /* Reset XferAbortCallback */ |
sahilmgandhi | 18:6a4db94011d3 | 5009 | hi2c->hdmatx->XferAbortCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 5010 | hi2c->hdmarx->XferAbortCallback = NULL; |
sahilmgandhi | 18:6a4db94011d3 | 5011 | |
sahilmgandhi | 18:6a4db94011d3 | 5012 | /* Check if come from abort from user */ |
sahilmgandhi | 18:6a4db94011d3 | 5013 | if(hi2c->State == HAL_I2C_STATE_ABORT) |
sahilmgandhi | 18:6a4db94011d3 | 5014 | { |
sahilmgandhi | 18:6a4db94011d3 | 5015 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 5016 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 5017 | |
sahilmgandhi | 18:6a4db94011d3 | 5018 | /* Call the corresponding callback to inform upper layer of End of Transfer */ |
sahilmgandhi | 18:6a4db94011d3 | 5019 | HAL_I2C_AbortCpltCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 5020 | } |
sahilmgandhi | 18:6a4db94011d3 | 5021 | else |
sahilmgandhi | 18:6a4db94011d3 | 5022 | { |
sahilmgandhi | 18:6a4db94011d3 | 5023 | hi2c->State = HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 5024 | hi2c->Mode = HAL_I2C_MODE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 5025 | |
sahilmgandhi | 18:6a4db94011d3 | 5026 | /* Call the corresponding callback to inform upper layer of End of Transfer */ |
sahilmgandhi | 18:6a4db94011d3 | 5027 | HAL_I2C_ErrorCallback(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 5028 | } |
sahilmgandhi | 18:6a4db94011d3 | 5029 | } |
sahilmgandhi | 18:6a4db94011d3 | 5030 | |
sahilmgandhi | 18:6a4db94011d3 | 5031 | /** |
sahilmgandhi | 18:6a4db94011d3 | 5032 | * @brief This function handles I2C Communication Timeout. |
sahilmgandhi | 18:6a4db94011d3 | 5033 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 5034 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 5035 | * @param Flag specifies the I2C flag to check. |
sahilmgandhi | 18:6a4db94011d3 | 5036 | * @param Status The new Flag status (SET or RESET). |
sahilmgandhi | 18:6a4db94011d3 | 5037 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 5038 | * @param Tickstart Tick start value |
sahilmgandhi | 18:6a4db94011d3 | 5039 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 5040 | */ |
sahilmgandhi | 18:6a4db94011d3 | 5041 | static HAL_StatusTypeDef I2C_WaitOnFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Flag, FlagStatus Status, uint32_t Timeout, uint32_t Tickstart) |
sahilmgandhi | 18:6a4db94011d3 | 5042 | { |
sahilmgandhi | 18:6a4db94011d3 | 5043 | /* Wait until flag is set */ |
sahilmgandhi | 18:6a4db94011d3 | 5044 | while((__HAL_I2C_GET_FLAG(hi2c, Flag) ? SET : RESET) == Status) |
sahilmgandhi | 18:6a4db94011d3 | 5045 | { |
sahilmgandhi | 18:6a4db94011d3 | 5046 | /* Check for the Timeout */ |
sahilmgandhi | 18:6a4db94011d3 | 5047 | if(Timeout != HAL_MAX_DELAY) |
sahilmgandhi | 18:6a4db94011d3 | 5048 | { |
sahilmgandhi | 18:6a4db94011d3 | 5049 | if((Timeout == 0U)||((HAL_GetTick() - Tickstart ) > Timeout)) |
sahilmgandhi | 18:6a4db94011d3 | 5050 | { |
sahilmgandhi | 18:6a4db94011d3 | 5051 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 5052 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 5053 | |
sahilmgandhi | 18:6a4db94011d3 | 5054 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 5055 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 5056 | |
sahilmgandhi | 18:6a4db94011d3 | 5057 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 5058 | } |
sahilmgandhi | 18:6a4db94011d3 | 5059 | } |
sahilmgandhi | 18:6a4db94011d3 | 5060 | } |
sahilmgandhi | 18:6a4db94011d3 | 5061 | |
sahilmgandhi | 18:6a4db94011d3 | 5062 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 5063 | } |
sahilmgandhi | 18:6a4db94011d3 | 5064 | |
sahilmgandhi | 18:6a4db94011d3 | 5065 | /** |
sahilmgandhi | 18:6a4db94011d3 | 5066 | * @brief This function handles I2C Communication Timeout for Master addressing phase. |
sahilmgandhi | 18:6a4db94011d3 | 5067 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 5068 | * the configuration information for I2C module |
sahilmgandhi | 18:6a4db94011d3 | 5069 | * @param Flag specifies the I2C flag to check. |
sahilmgandhi | 18:6a4db94011d3 | 5070 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 5071 | * @param Tickstart Tick start value |
sahilmgandhi | 18:6a4db94011d3 | 5072 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 5073 | */ |
sahilmgandhi | 18:6a4db94011d3 | 5074 | static HAL_StatusTypeDef I2C_WaitOnMasterAddressFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Flag, uint32_t Timeout, uint32_t Tickstart) |
sahilmgandhi | 18:6a4db94011d3 | 5075 | { |
sahilmgandhi | 18:6a4db94011d3 | 5076 | while(__HAL_I2C_GET_FLAG(hi2c, Flag) == RESET) |
sahilmgandhi | 18:6a4db94011d3 | 5077 | { |
sahilmgandhi | 18:6a4db94011d3 | 5078 | if(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_AF) == SET) |
sahilmgandhi | 18:6a4db94011d3 | 5079 | { |
sahilmgandhi | 18:6a4db94011d3 | 5080 | /* Generate Stop */ |
sahilmgandhi | 18:6a4db94011d3 | 5081 | hi2c->Instance->CR1 |= I2C_CR1_STOP; |
sahilmgandhi | 18:6a4db94011d3 | 5082 | |
sahilmgandhi | 18:6a4db94011d3 | 5083 | /* Clear AF Flag */ |
sahilmgandhi | 18:6a4db94011d3 | 5084 | __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); |
sahilmgandhi | 18:6a4db94011d3 | 5085 | |
sahilmgandhi | 18:6a4db94011d3 | 5086 | hi2c->ErrorCode = HAL_I2C_ERROR_AF; |
sahilmgandhi | 18:6a4db94011d3 | 5087 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 5088 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 5089 | |
sahilmgandhi | 18:6a4db94011d3 | 5090 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 5091 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 5092 | |
sahilmgandhi | 18:6a4db94011d3 | 5093 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 5094 | } |
sahilmgandhi | 18:6a4db94011d3 | 5095 | |
sahilmgandhi | 18:6a4db94011d3 | 5096 | /* Check for the Timeout */ |
sahilmgandhi | 18:6a4db94011d3 | 5097 | if(Timeout != HAL_MAX_DELAY) |
sahilmgandhi | 18:6a4db94011d3 | 5098 | { |
sahilmgandhi | 18:6a4db94011d3 | 5099 | if((Timeout == 0U)||((HAL_GetTick() - Tickstart ) > Timeout)) |
sahilmgandhi | 18:6a4db94011d3 | 5100 | { |
sahilmgandhi | 18:6a4db94011d3 | 5101 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 5102 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 5103 | |
sahilmgandhi | 18:6a4db94011d3 | 5104 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 5105 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 5106 | |
sahilmgandhi | 18:6a4db94011d3 | 5107 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 5108 | } |
sahilmgandhi | 18:6a4db94011d3 | 5109 | } |
sahilmgandhi | 18:6a4db94011d3 | 5110 | } |
sahilmgandhi | 18:6a4db94011d3 | 5111 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 5112 | } |
sahilmgandhi | 18:6a4db94011d3 | 5113 | |
sahilmgandhi | 18:6a4db94011d3 | 5114 | /** |
sahilmgandhi | 18:6a4db94011d3 | 5115 | * @brief This function handles I2C Communication Timeout for specific usage of TXE flag. |
sahilmgandhi | 18:6a4db94011d3 | 5116 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 5117 | * the configuration information for the specified I2C. |
sahilmgandhi | 18:6a4db94011d3 | 5118 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 5119 | * @param Tickstart Tick start value |
sahilmgandhi | 18:6a4db94011d3 | 5120 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 5121 | */ |
sahilmgandhi | 18:6a4db94011d3 | 5122 | static HAL_StatusTypeDef I2C_WaitOnTXEFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) |
sahilmgandhi | 18:6a4db94011d3 | 5123 | { |
sahilmgandhi | 18:6a4db94011d3 | 5124 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_TXE) == RESET) |
sahilmgandhi | 18:6a4db94011d3 | 5125 | { |
sahilmgandhi | 18:6a4db94011d3 | 5126 | /* Check if a NACK is detected */ |
sahilmgandhi | 18:6a4db94011d3 | 5127 | if(I2C_IsAcknowledgeFailed(hi2c) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 5128 | { |
sahilmgandhi | 18:6a4db94011d3 | 5129 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 5130 | } |
sahilmgandhi | 18:6a4db94011d3 | 5131 | |
sahilmgandhi | 18:6a4db94011d3 | 5132 | /* Check for the Timeout */ |
sahilmgandhi | 18:6a4db94011d3 | 5133 | if(Timeout != HAL_MAX_DELAY) |
sahilmgandhi | 18:6a4db94011d3 | 5134 | { |
sahilmgandhi | 18:6a4db94011d3 | 5135 | if((Timeout == 0U) || ((HAL_GetTick()-Tickstart) > Timeout)) |
sahilmgandhi | 18:6a4db94011d3 | 5136 | { |
sahilmgandhi | 18:6a4db94011d3 | 5137 | hi2c->ErrorCode |= HAL_I2C_ERROR_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 5138 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 5139 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 5140 | |
sahilmgandhi | 18:6a4db94011d3 | 5141 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 5142 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 5143 | |
sahilmgandhi | 18:6a4db94011d3 | 5144 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 5145 | } |
sahilmgandhi | 18:6a4db94011d3 | 5146 | } |
sahilmgandhi | 18:6a4db94011d3 | 5147 | } |
sahilmgandhi | 18:6a4db94011d3 | 5148 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 5149 | } |
sahilmgandhi | 18:6a4db94011d3 | 5150 | |
sahilmgandhi | 18:6a4db94011d3 | 5151 | /** |
sahilmgandhi | 18:6a4db94011d3 | 5152 | * @brief This function handles I2C Communication Timeout for specific usage of BTF flag. |
sahilmgandhi | 18:6a4db94011d3 | 5153 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 5154 | * the configuration information for the specified I2C. |
sahilmgandhi | 18:6a4db94011d3 | 5155 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 5156 | * @param Tickstart Tick start value |
sahilmgandhi | 18:6a4db94011d3 | 5157 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 5158 | */ |
sahilmgandhi | 18:6a4db94011d3 | 5159 | static HAL_StatusTypeDef I2C_WaitOnBTFFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) |
sahilmgandhi | 18:6a4db94011d3 | 5160 | { |
sahilmgandhi | 18:6a4db94011d3 | 5161 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BTF) == RESET) |
sahilmgandhi | 18:6a4db94011d3 | 5162 | { |
sahilmgandhi | 18:6a4db94011d3 | 5163 | /* Check if a NACK is detected */ |
sahilmgandhi | 18:6a4db94011d3 | 5164 | if(I2C_IsAcknowledgeFailed(hi2c) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 5165 | { |
sahilmgandhi | 18:6a4db94011d3 | 5166 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 5167 | } |
sahilmgandhi | 18:6a4db94011d3 | 5168 | |
sahilmgandhi | 18:6a4db94011d3 | 5169 | /* Check for the Timeout */ |
sahilmgandhi | 18:6a4db94011d3 | 5170 | if(Timeout != HAL_MAX_DELAY) |
sahilmgandhi | 18:6a4db94011d3 | 5171 | { |
sahilmgandhi | 18:6a4db94011d3 | 5172 | if((Timeout == 0U) || ((HAL_GetTick()-Tickstart) > Timeout)) |
sahilmgandhi | 18:6a4db94011d3 | 5173 | { |
sahilmgandhi | 18:6a4db94011d3 | 5174 | hi2c->ErrorCode |= HAL_I2C_ERROR_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 5175 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 5176 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 5177 | |
sahilmgandhi | 18:6a4db94011d3 | 5178 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 5179 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 5180 | |
sahilmgandhi | 18:6a4db94011d3 | 5181 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 5182 | } |
sahilmgandhi | 18:6a4db94011d3 | 5183 | } |
sahilmgandhi | 18:6a4db94011d3 | 5184 | } |
sahilmgandhi | 18:6a4db94011d3 | 5185 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 5186 | } |
sahilmgandhi | 18:6a4db94011d3 | 5187 | |
sahilmgandhi | 18:6a4db94011d3 | 5188 | /** |
sahilmgandhi | 18:6a4db94011d3 | 5189 | * @brief This function handles I2C Communication Timeout for specific usage of STOP flag. |
sahilmgandhi | 18:6a4db94011d3 | 5190 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 5191 | * the configuration information for the specified I2C. |
sahilmgandhi | 18:6a4db94011d3 | 5192 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 5193 | * @param Tickstart Tick start value |
sahilmgandhi | 18:6a4db94011d3 | 5194 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 5195 | */ |
sahilmgandhi | 18:6a4db94011d3 | 5196 | static HAL_StatusTypeDef I2C_WaitOnSTOPFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) |
sahilmgandhi | 18:6a4db94011d3 | 5197 | { |
sahilmgandhi | 18:6a4db94011d3 | 5198 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_STOPF) == RESET) |
sahilmgandhi | 18:6a4db94011d3 | 5199 | { |
sahilmgandhi | 18:6a4db94011d3 | 5200 | /* Check if a NACK is detected */ |
sahilmgandhi | 18:6a4db94011d3 | 5201 | if(I2C_IsAcknowledgeFailed(hi2c) != HAL_OK) |
sahilmgandhi | 18:6a4db94011d3 | 5202 | { |
sahilmgandhi | 18:6a4db94011d3 | 5203 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 5204 | } |
sahilmgandhi | 18:6a4db94011d3 | 5205 | |
sahilmgandhi | 18:6a4db94011d3 | 5206 | /* Check for the Timeout */ |
sahilmgandhi | 18:6a4db94011d3 | 5207 | if((Timeout == 0U) || ((HAL_GetTick()-Tickstart) > Timeout)) |
sahilmgandhi | 18:6a4db94011d3 | 5208 | { |
sahilmgandhi | 18:6a4db94011d3 | 5209 | hi2c->ErrorCode |= HAL_I2C_ERROR_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 5210 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 5211 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 5212 | |
sahilmgandhi | 18:6a4db94011d3 | 5213 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 5214 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 5215 | |
sahilmgandhi | 18:6a4db94011d3 | 5216 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 5217 | } |
sahilmgandhi | 18:6a4db94011d3 | 5218 | } |
sahilmgandhi | 18:6a4db94011d3 | 5219 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 5220 | } |
sahilmgandhi | 18:6a4db94011d3 | 5221 | |
sahilmgandhi | 18:6a4db94011d3 | 5222 | /** |
sahilmgandhi | 18:6a4db94011d3 | 5223 | * @brief This function handles I2C Communication Timeout for specific usage of RXNE flag. |
sahilmgandhi | 18:6a4db94011d3 | 5224 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 5225 | * the configuration information for the specified I2C. |
sahilmgandhi | 18:6a4db94011d3 | 5226 | * @param Timeout Timeout duration |
sahilmgandhi | 18:6a4db94011d3 | 5227 | * @param Tickstart Tick start value |
sahilmgandhi | 18:6a4db94011d3 | 5228 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 5229 | */ |
sahilmgandhi | 18:6a4db94011d3 | 5230 | static HAL_StatusTypeDef I2C_WaitOnRXNEFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) |
sahilmgandhi | 18:6a4db94011d3 | 5231 | { |
sahilmgandhi | 18:6a4db94011d3 | 5232 | |
sahilmgandhi | 18:6a4db94011d3 | 5233 | while(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_RXNE) == RESET) |
sahilmgandhi | 18:6a4db94011d3 | 5234 | { |
sahilmgandhi | 18:6a4db94011d3 | 5235 | /* Check if a STOPF is detected */ |
sahilmgandhi | 18:6a4db94011d3 | 5236 | if(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_STOPF) == SET) |
sahilmgandhi | 18:6a4db94011d3 | 5237 | { |
sahilmgandhi | 18:6a4db94011d3 | 5238 | /* Clear STOP Flag */ |
sahilmgandhi | 18:6a4db94011d3 | 5239 | __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_STOPF); |
sahilmgandhi | 18:6a4db94011d3 | 5240 | |
sahilmgandhi | 18:6a4db94011d3 | 5241 | hi2c->ErrorCode = HAL_I2C_ERROR_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 5242 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 5243 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 5244 | |
sahilmgandhi | 18:6a4db94011d3 | 5245 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 5246 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 5247 | |
sahilmgandhi | 18:6a4db94011d3 | 5248 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 5249 | } |
sahilmgandhi | 18:6a4db94011d3 | 5250 | |
sahilmgandhi | 18:6a4db94011d3 | 5251 | /* Check for the Timeout */ |
sahilmgandhi | 18:6a4db94011d3 | 5252 | if((Timeout == 0U) || ((HAL_GetTick()-Tickstart) > Timeout)) |
sahilmgandhi | 18:6a4db94011d3 | 5253 | { |
sahilmgandhi | 18:6a4db94011d3 | 5254 | hi2c->ErrorCode |= HAL_I2C_ERROR_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 5255 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 5256 | |
sahilmgandhi | 18:6a4db94011d3 | 5257 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 5258 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 5259 | |
sahilmgandhi | 18:6a4db94011d3 | 5260 | return HAL_TIMEOUT; |
sahilmgandhi | 18:6a4db94011d3 | 5261 | } |
sahilmgandhi | 18:6a4db94011d3 | 5262 | } |
sahilmgandhi | 18:6a4db94011d3 | 5263 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 5264 | } |
sahilmgandhi | 18:6a4db94011d3 | 5265 | |
sahilmgandhi | 18:6a4db94011d3 | 5266 | /** |
sahilmgandhi | 18:6a4db94011d3 | 5267 | * @brief This function handles Acknowledge failed detection during an I2C Communication. |
sahilmgandhi | 18:6a4db94011d3 | 5268 | * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains |
sahilmgandhi | 18:6a4db94011d3 | 5269 | * the configuration information for the specified I2C. |
sahilmgandhi | 18:6a4db94011d3 | 5270 | * @retval HAL status |
sahilmgandhi | 18:6a4db94011d3 | 5271 | */ |
sahilmgandhi | 18:6a4db94011d3 | 5272 | static HAL_StatusTypeDef I2C_IsAcknowledgeFailed(I2C_HandleTypeDef *hi2c) |
sahilmgandhi | 18:6a4db94011d3 | 5273 | { |
sahilmgandhi | 18:6a4db94011d3 | 5274 | if(__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_AF) == SET) |
sahilmgandhi | 18:6a4db94011d3 | 5275 | { |
sahilmgandhi | 18:6a4db94011d3 | 5276 | /* Clear NACKF Flag */ |
sahilmgandhi | 18:6a4db94011d3 | 5277 | __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); |
sahilmgandhi | 18:6a4db94011d3 | 5278 | |
sahilmgandhi | 18:6a4db94011d3 | 5279 | hi2c->ErrorCode = HAL_I2C_ERROR_AF; |
sahilmgandhi | 18:6a4db94011d3 | 5280 | hi2c->PreviousState = I2C_STATE_NONE; |
sahilmgandhi | 18:6a4db94011d3 | 5281 | hi2c->State= HAL_I2C_STATE_READY; |
sahilmgandhi | 18:6a4db94011d3 | 5282 | |
sahilmgandhi | 18:6a4db94011d3 | 5283 | /* Process Unlocked */ |
sahilmgandhi | 18:6a4db94011d3 | 5284 | __HAL_UNLOCK(hi2c); |
sahilmgandhi | 18:6a4db94011d3 | 5285 | |
sahilmgandhi | 18:6a4db94011d3 | 5286 | return HAL_ERROR; |
sahilmgandhi | 18:6a4db94011d3 | 5287 | } |
sahilmgandhi | 18:6a4db94011d3 | 5288 | return HAL_OK; |
sahilmgandhi | 18:6a4db94011d3 | 5289 | } |
sahilmgandhi | 18:6a4db94011d3 | 5290 | /** |
sahilmgandhi | 18:6a4db94011d3 | 5291 | * @} |
sahilmgandhi | 18:6a4db94011d3 | 5292 | */ |
sahilmgandhi | 18:6a4db94011d3 | 5293 | |
sahilmgandhi | 18:6a4db94011d3 | 5294 | #endif /* HAL_I2C_MODULE_ENABLED */ |
sahilmgandhi | 18:6a4db94011d3 | 5295 | |
sahilmgandhi | 18:6a4db94011d3 | 5296 | /** |
sahilmgandhi | 18:6a4db94011d3 | 5297 | * @} |
sahilmgandhi | 18:6a4db94011d3 | 5298 | */ |
sahilmgandhi | 18:6a4db94011d3 | 5299 | |
sahilmgandhi | 18:6a4db94011d3 | 5300 | /** |
sahilmgandhi | 18:6a4db94011d3 | 5301 | * @} |
sahilmgandhi | 18:6a4db94011d3 | 5302 | */ |
sahilmgandhi | 18:6a4db94011d3 | 5303 | |
sahilmgandhi | 18:6a4db94011d3 | 5304 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |