fix LPC812 PWM
Fork of mbed-dev by
targets/cmsis/TARGET_STM/TARGET_STM32L4/stm32l4xx_hal_usart.c@0:9b334a45a8ff, 2015-10-01 (annotated)
- Committer:
- bogdanm
- Date:
- Thu Oct 01 15:25:22 2015 +0300
- Revision:
- 0:9b334a45a8ff
Initial commit on mbed-dev
Replaces mbed-src (now inactive)
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
bogdanm | 0:9b334a45a8ff | 1 | /** |
bogdanm | 0:9b334a45a8ff | 2 | ****************************************************************************** |
bogdanm | 0:9b334a45a8ff | 3 | * @file stm32l4xx_hal_usart.c |
bogdanm | 0:9b334a45a8ff | 4 | * @author MCD Application Team |
bogdanm | 0:9b334a45a8ff | 5 | * @version V1.0.0 |
bogdanm | 0:9b334a45a8ff | 6 | * @date 26-June-2015 |
bogdanm | 0:9b334a45a8ff | 7 | * @brief USART HAL module driver. |
bogdanm | 0:9b334a45a8ff | 8 | * This file provides firmware functions to manage the following |
bogdanm | 0:9b334a45a8ff | 9 | * functionalities of the Universal Synchronous/Asynchronous Receiver Transmitter |
bogdanm | 0:9b334a45a8ff | 10 | * Peripheral (USART). |
bogdanm | 0:9b334a45a8ff | 11 | * + Initialization and de-initialization functions |
bogdanm | 0:9b334a45a8ff | 12 | * + IO operation functions |
bogdanm | 0:9b334a45a8ff | 13 | * + Peripheral Control functions |
bogdanm | 0:9b334a45a8ff | 14 | * + Peripheral State and Error functions |
bogdanm | 0:9b334a45a8ff | 15 | * |
bogdanm | 0:9b334a45a8ff | 16 | @verbatim |
bogdanm | 0:9b334a45a8ff | 17 | =============================================================================== |
bogdanm | 0:9b334a45a8ff | 18 | ##### How to use this driver ##### |
bogdanm | 0:9b334a45a8ff | 19 | =============================================================================== |
bogdanm | 0:9b334a45a8ff | 20 | [..] |
bogdanm | 0:9b334a45a8ff | 21 | The USART HAL driver can be used as follows: |
bogdanm | 0:9b334a45a8ff | 22 | |
bogdanm | 0:9b334a45a8ff | 23 | (#) Declare a USART_HandleTypeDef handle structure (eg. USART_HandleTypeDef husart). |
bogdanm | 0:9b334a45a8ff | 24 | (#) Initialize the USART low level resources by implementing the HAL_USART_MspInit() API: |
bogdanm | 0:9b334a45a8ff | 25 | (++) Enable the USARTx interface clock. |
bogdanm | 0:9b334a45a8ff | 26 | (++) USART pins configuration: |
bogdanm | 0:9b334a45a8ff | 27 | (+++) Enable the clock for the USART GPIOs. |
bogdanm | 0:9b334a45a8ff | 28 | (+++) Configure these USART pins as alternate function pull-up. |
bogdanm | 0:9b334a45a8ff | 29 | (++) NVIC configuration if you need to use interrupt process (HAL_USART_Transmit_IT(), |
bogdanm | 0:9b334a45a8ff | 30 | HAL_USART_Receive_IT() and HAL_USART_TransmitReceive_IT() APIs): |
bogdanm | 0:9b334a45a8ff | 31 | (+++) Configure the USARTx interrupt priority. |
bogdanm | 0:9b334a45a8ff | 32 | (+++) Enable the NVIC USART IRQ handle. |
bogdanm | 0:9b334a45a8ff | 33 | (++) USART interrupts handling: |
bogdanm | 0:9b334a45a8ff | 34 | -@@- The specific USART interrupts (Transmission complete interrupt, |
bogdanm | 0:9b334a45a8ff | 35 | RXNE interrupt and Error Interrupts) will be managed using the macros |
bogdanm | 0:9b334a45a8ff | 36 | __HAL_USART_ENABLE_IT() and __HAL_USART_DISABLE_IT() inside the transmit and receive process. |
bogdanm | 0:9b334a45a8ff | 37 | (++) DMA Configuration if you need to use DMA process (HAL_USART_Transmit_DMA() |
bogdanm | 0:9b334a45a8ff | 38 | HAL_USART_Receive_DMA() and HAL_USART_TransmitReceive_DMA() APIs): |
bogdanm | 0:9b334a45a8ff | 39 | (+++) Declare a DMA handle structure for the Tx/Rx channel. |
bogdanm | 0:9b334a45a8ff | 40 | (+++) Enable the DMAx interface clock. |
bogdanm | 0:9b334a45a8ff | 41 | (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters. |
bogdanm | 0:9b334a45a8ff | 42 | (+++) Configure the DMA Tx/Rx channel. |
bogdanm | 0:9b334a45a8ff | 43 | (+++) Associate the initialized DMA handle to the USART DMA Tx/Rx handle. |
bogdanm | 0:9b334a45a8ff | 44 | (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx/Rx channel. |
bogdanm | 0:9b334a45a8ff | 45 | |
bogdanm | 0:9b334a45a8ff | 46 | (#) Program the Baud Rate, Word Length, Stop Bit, Parity, Hardware |
bogdanm | 0:9b334a45a8ff | 47 | flow control and Mode (Receiver/Transmitter) in the husart handle Init structure. |
bogdanm | 0:9b334a45a8ff | 48 | |
bogdanm | 0:9b334a45a8ff | 49 | (#) Initialize the USART registers by calling the HAL_USART_Init() API: |
bogdanm | 0:9b334a45a8ff | 50 | (++) This API configures also the low level Hardware GPIO, CLOCK, CORTEX...etc) |
bogdanm | 0:9b334a45a8ff | 51 | by calling the customized HAL_USART_MspInit(&husart) API. |
bogdanm | 0:9b334a45a8ff | 52 | |
bogdanm | 0:9b334a45a8ff | 53 | [..] |
bogdanm | 0:9b334a45a8ff | 54 | (@) To configure and enable/disable the USART to wake up the MCU from stop mode, resort to UART API's |
bogdanm | 0:9b334a45a8ff | 55 | HAL_UARTEx_StopModeWakeUpSourceConfig(), HAL_UARTEx_EnableStopMode() and |
bogdanm | 0:9b334a45a8ff | 56 | HAL_UARTEx_DisableStopMode() in casting the USART handle to UART type UART_HandleTypeDef. |
bogdanm | 0:9b334a45a8ff | 57 | |
bogdanm | 0:9b334a45a8ff | 58 | @endverbatim |
bogdanm | 0:9b334a45a8ff | 59 | ****************************************************************************** |
bogdanm | 0:9b334a45a8ff | 60 | * @attention |
bogdanm | 0:9b334a45a8ff | 61 | * |
bogdanm | 0:9b334a45a8ff | 62 | * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> |
bogdanm | 0:9b334a45a8ff | 63 | * |
bogdanm | 0:9b334a45a8ff | 64 | * Redistribution and use in source and binary forms, with or without modification, |
bogdanm | 0:9b334a45a8ff | 65 | * are permitted provided that the following conditions are met: |
bogdanm | 0:9b334a45a8ff | 66 | * 1. Redistributions of source code must retain the above copyright notice, |
bogdanm | 0:9b334a45a8ff | 67 | * this list of conditions and the following disclaimer. |
bogdanm | 0:9b334a45a8ff | 68 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
bogdanm | 0:9b334a45a8ff | 69 | * this list of conditions and the following disclaimer in the documentation |
bogdanm | 0:9b334a45a8ff | 70 | * and/or other materials provided with the distribution. |
bogdanm | 0:9b334a45a8ff | 71 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
bogdanm | 0:9b334a45a8ff | 72 | * may be used to endorse or promote products derived from this software |
bogdanm | 0:9b334a45a8ff | 73 | * without specific prior written permission. |
bogdanm | 0:9b334a45a8ff | 74 | * |
bogdanm | 0:9b334a45a8ff | 75 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
bogdanm | 0:9b334a45a8ff | 76 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
bogdanm | 0:9b334a45a8ff | 77 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
bogdanm | 0:9b334a45a8ff | 78 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
bogdanm | 0:9b334a45a8ff | 79 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
bogdanm | 0:9b334a45a8ff | 80 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
bogdanm | 0:9b334a45a8ff | 81 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
bogdanm | 0:9b334a45a8ff | 82 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
bogdanm | 0:9b334a45a8ff | 83 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
bogdanm | 0:9b334a45a8ff | 84 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
bogdanm | 0:9b334a45a8ff | 85 | * |
bogdanm | 0:9b334a45a8ff | 86 | ****************************************************************************** |
bogdanm | 0:9b334a45a8ff | 87 | */ |
bogdanm | 0:9b334a45a8ff | 88 | |
bogdanm | 0:9b334a45a8ff | 89 | /* Includes ------------------------------------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 90 | #include "stm32l4xx_hal.h" |
bogdanm | 0:9b334a45a8ff | 91 | |
bogdanm | 0:9b334a45a8ff | 92 | /** @addtogroup STM32L4xx_HAL_Driver |
bogdanm | 0:9b334a45a8ff | 93 | * @{ |
bogdanm | 0:9b334a45a8ff | 94 | */ |
bogdanm | 0:9b334a45a8ff | 95 | |
bogdanm | 0:9b334a45a8ff | 96 | /** @defgroup USART USART |
bogdanm | 0:9b334a45a8ff | 97 | * @brief HAL USART Synchronous module driver |
bogdanm | 0:9b334a45a8ff | 98 | * @{ |
bogdanm | 0:9b334a45a8ff | 99 | */ |
bogdanm | 0:9b334a45a8ff | 100 | |
bogdanm | 0:9b334a45a8ff | 101 | #ifdef HAL_USART_MODULE_ENABLED |
bogdanm | 0:9b334a45a8ff | 102 | |
bogdanm | 0:9b334a45a8ff | 103 | /* Private typedef -----------------------------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 104 | /* Private define ------------------------------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 105 | /** @defgroup USART_Private_Constants USART Private Constants |
bogdanm | 0:9b334a45a8ff | 106 | * @{ |
bogdanm | 0:9b334a45a8ff | 107 | */ |
bogdanm | 0:9b334a45a8ff | 108 | #define USART_DUMMY_DATA ((uint16_t) 0xFFFF) /*!< USART transmitted dummy data */ |
bogdanm | 0:9b334a45a8ff | 109 | #define USART_TEACK_REACK_TIMEOUT ((uint32_t) 1000) /*!< USART TX or RX enable acknowledge time-out value */ |
bogdanm | 0:9b334a45a8ff | 110 | #define USART_CR1_FIELDS ((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | \ |
bogdanm | 0:9b334a45a8ff | 111 | USART_CR1_TE | USART_CR1_RE | USART_CR1_OVER8)) /*!< USART CR1 fields of parameters set by USART_SetConfig API */ |
bogdanm | 0:9b334a45a8ff | 112 | #define USART_CR2_FIELDS ((uint32_t)(USART_CR2_CPHA | USART_CR2_CPOL | \ |
bogdanm | 0:9b334a45a8ff | 113 | USART_CR2_CLKEN | USART_CR2_LBCL | USART_CR2_STOP)) /*!< USART CR2 fields of parameters set by USART_SetConfig API */ |
bogdanm | 0:9b334a45a8ff | 114 | /** |
bogdanm | 0:9b334a45a8ff | 115 | * @} |
bogdanm | 0:9b334a45a8ff | 116 | */ |
bogdanm | 0:9b334a45a8ff | 117 | |
bogdanm | 0:9b334a45a8ff | 118 | /* Private macros ------------------------------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 119 | /* Private variables ---------------------------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 120 | /* Private function prototypes -----------------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 121 | /** @addtogroup USART_Private_Functions |
bogdanm | 0:9b334a45a8ff | 122 | * @{ |
bogdanm | 0:9b334a45a8ff | 123 | */ |
bogdanm | 0:9b334a45a8ff | 124 | static void USART_DMATransmitCplt(DMA_HandleTypeDef *hdma); |
bogdanm | 0:9b334a45a8ff | 125 | static void USART_DMAReceiveCplt(DMA_HandleTypeDef *hdma); |
bogdanm | 0:9b334a45a8ff | 126 | static void USART_DMATxHalfCplt(DMA_HandleTypeDef *hdma); |
bogdanm | 0:9b334a45a8ff | 127 | static void USART_DMARxHalfCplt(DMA_HandleTypeDef *hdma); |
bogdanm | 0:9b334a45a8ff | 128 | static void USART_DMAError(DMA_HandleTypeDef *hdma); |
bogdanm | 0:9b334a45a8ff | 129 | static HAL_StatusTypeDef USART_WaitOnFlagUntilTimeout(USART_HandleTypeDef *husart, uint32_t Flag, FlagStatus Status, uint32_t Timeout); |
bogdanm | 0:9b334a45a8ff | 130 | static HAL_StatusTypeDef USART_SetConfig(USART_HandleTypeDef *husart); |
bogdanm | 0:9b334a45a8ff | 131 | static HAL_StatusTypeDef USART_CheckIdleState(USART_HandleTypeDef *husart); |
bogdanm | 0:9b334a45a8ff | 132 | static HAL_StatusTypeDef USART_Transmit_IT(USART_HandleTypeDef *husart); |
bogdanm | 0:9b334a45a8ff | 133 | static HAL_StatusTypeDef USART_EndTransmit_IT(USART_HandleTypeDef *husart); |
bogdanm | 0:9b334a45a8ff | 134 | static HAL_StatusTypeDef USART_Receive_IT(USART_HandleTypeDef *husart); |
bogdanm | 0:9b334a45a8ff | 135 | static HAL_StatusTypeDef USART_TransmitReceive_IT(USART_HandleTypeDef *husart); |
bogdanm | 0:9b334a45a8ff | 136 | /** |
bogdanm | 0:9b334a45a8ff | 137 | * @} |
bogdanm | 0:9b334a45a8ff | 138 | */ |
bogdanm | 0:9b334a45a8ff | 139 | |
bogdanm | 0:9b334a45a8ff | 140 | /* Exported functions --------------------------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 141 | |
bogdanm | 0:9b334a45a8ff | 142 | /** @defgroup USART_Exported_Functions USART Exported Functions |
bogdanm | 0:9b334a45a8ff | 143 | * @{ |
bogdanm | 0:9b334a45a8ff | 144 | */ |
bogdanm | 0:9b334a45a8ff | 145 | |
bogdanm | 0:9b334a45a8ff | 146 | /** @defgroup USART_Exported_Functions_Group1 Initialization and de-initialization functions |
bogdanm | 0:9b334a45a8ff | 147 | * @brief Initialization and Configuration functions |
bogdanm | 0:9b334a45a8ff | 148 | * |
bogdanm | 0:9b334a45a8ff | 149 | @verbatim |
bogdanm | 0:9b334a45a8ff | 150 | =============================================================================== |
bogdanm | 0:9b334a45a8ff | 151 | ##### Initialization and Configuration functions ##### |
bogdanm | 0:9b334a45a8ff | 152 | =============================================================================== |
bogdanm | 0:9b334a45a8ff | 153 | [..] |
bogdanm | 0:9b334a45a8ff | 154 | This subsection provides a set of functions allowing to initialize the USART |
bogdanm | 0:9b334a45a8ff | 155 | in asynchronous and in synchronous modes. |
bogdanm | 0:9b334a45a8ff | 156 | (+) For the asynchronous mode only these parameters can be configured: |
bogdanm | 0:9b334a45a8ff | 157 | (++) Baud Rate |
bogdanm | 0:9b334a45a8ff | 158 | (++) Word Length |
bogdanm | 0:9b334a45a8ff | 159 | (++) Stop Bit |
bogdanm | 0:9b334a45a8ff | 160 | (++) Parity: If the parity is enabled, then the MSB bit of the data written |
bogdanm | 0:9b334a45a8ff | 161 | in the data register is transmitted but is changed by the parity bit. |
bogdanm | 0:9b334a45a8ff | 162 | Depending on the frame length defined by the M1 and M0 bits (7-bit, |
bogdanm | 0:9b334a45a8ff | 163 | 8-bit or 9-bit), the possible USART frame formats are as listed in the |
bogdanm | 0:9b334a45a8ff | 164 | following table: |
bogdanm | 0:9b334a45a8ff | 165 | |
bogdanm | 0:9b334a45a8ff | 166 | (+++) Table 1. USART frame format. |
bogdanm | 0:9b334a45a8ff | 167 | (+++) +-----------------------------------------------------------------------+ |
bogdanm | 0:9b334a45a8ff | 168 | (+++) | M1 bit | M0 bit | PCE bit | USART frame | |
bogdanm | 0:9b334a45a8ff | 169 | (+++) |---------|---------|-----------|---------------------------------------| |
bogdanm | 0:9b334a45a8ff | 170 | (+++) | 0 | 0 | 0 | | SB | 8 bit data | STB | | |
bogdanm | 0:9b334a45a8ff | 171 | (+++) |---------|---------|-----------|---------------------------------------| |
bogdanm | 0:9b334a45a8ff | 172 | (+++) | 0 | 0 | 1 | | SB | 7 bit data | PB | STB | | |
bogdanm | 0:9b334a45a8ff | 173 | (+++) |---------|---------|-----------|---------------------------------------| |
bogdanm | 0:9b334a45a8ff | 174 | (+++) | 0 | 1 | 0 | | SB | 9 bit data | STB | | |
bogdanm | 0:9b334a45a8ff | 175 | (+++) |---------|---------|-----------|---------------------------------------| |
bogdanm | 0:9b334a45a8ff | 176 | (+++) | 0 | 1 | 1 | | SB | 8 bit data | PB | STB | | |
bogdanm | 0:9b334a45a8ff | 177 | (+++) |---------|---------|-----------|---------------------------------------| |
bogdanm | 0:9b334a45a8ff | 178 | (+++) | 1 | 0 | 0 | | SB | 7 bit data | STB | | |
bogdanm | 0:9b334a45a8ff | 179 | (+++) |---------|---------|-----------|---------------------------------------| |
bogdanm | 0:9b334a45a8ff | 180 | (+++) | 1 | 0 | 1 | | SB | 6 bit data | PB | STB | | |
bogdanm | 0:9b334a45a8ff | 181 | (+++) +-----------------------------------------------------------------------+ |
bogdanm | 0:9b334a45a8ff | 182 | (++) USART polarity |
bogdanm | 0:9b334a45a8ff | 183 | (++) USART phase |
bogdanm | 0:9b334a45a8ff | 184 | (++) USART LastBit |
bogdanm | 0:9b334a45a8ff | 185 | (++) Receiver/transmitter modes |
bogdanm | 0:9b334a45a8ff | 186 | |
bogdanm | 0:9b334a45a8ff | 187 | [..] |
bogdanm | 0:9b334a45a8ff | 188 | The HAL_USART_Init() function follows the USART synchronous configuration |
bogdanm | 0:9b334a45a8ff | 189 | procedure (details for the procedure are available in reference manual). |
bogdanm | 0:9b334a45a8ff | 190 | |
bogdanm | 0:9b334a45a8ff | 191 | @endverbatim |
bogdanm | 0:9b334a45a8ff | 192 | * @{ |
bogdanm | 0:9b334a45a8ff | 193 | */ |
bogdanm | 0:9b334a45a8ff | 194 | |
bogdanm | 0:9b334a45a8ff | 195 | /** |
bogdanm | 0:9b334a45a8ff | 196 | * @brief Initializes the USART mode according to the specified |
bogdanm | 0:9b334a45a8ff | 197 | * parameters in the USART_InitTypeDef and initialize the associated handle. |
bogdanm | 0:9b334a45a8ff | 198 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 199 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 200 | */ |
bogdanm | 0:9b334a45a8ff | 201 | HAL_StatusTypeDef HAL_USART_Init(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 202 | { |
bogdanm | 0:9b334a45a8ff | 203 | /* Check the USART handle allocation */ |
bogdanm | 0:9b334a45a8ff | 204 | if(husart == NULL) |
bogdanm | 0:9b334a45a8ff | 205 | { |
bogdanm | 0:9b334a45a8ff | 206 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 207 | } |
bogdanm | 0:9b334a45a8ff | 208 | |
bogdanm | 0:9b334a45a8ff | 209 | /* Check the parameters */ |
bogdanm | 0:9b334a45a8ff | 210 | assert_param(IS_USART_INSTANCE(husart->Instance)); |
bogdanm | 0:9b334a45a8ff | 211 | |
bogdanm | 0:9b334a45a8ff | 212 | if(husart->State == HAL_USART_STATE_RESET) |
bogdanm | 0:9b334a45a8ff | 213 | { |
bogdanm | 0:9b334a45a8ff | 214 | /* Allocate lock resource and initialize it */ |
bogdanm | 0:9b334a45a8ff | 215 | husart->Lock = HAL_UNLOCKED; |
bogdanm | 0:9b334a45a8ff | 216 | |
bogdanm | 0:9b334a45a8ff | 217 | /* Init the low level hardware : GPIO, CLOCK */ |
bogdanm | 0:9b334a45a8ff | 218 | HAL_USART_MspInit(husart); |
bogdanm | 0:9b334a45a8ff | 219 | } |
bogdanm | 0:9b334a45a8ff | 220 | |
bogdanm | 0:9b334a45a8ff | 221 | husart->State = HAL_USART_STATE_BUSY; |
bogdanm | 0:9b334a45a8ff | 222 | |
bogdanm | 0:9b334a45a8ff | 223 | /* Disable the Peripheral */ |
bogdanm | 0:9b334a45a8ff | 224 | __HAL_USART_DISABLE(husart); |
bogdanm | 0:9b334a45a8ff | 225 | |
bogdanm | 0:9b334a45a8ff | 226 | /* Set the Usart Communication parameters */ |
bogdanm | 0:9b334a45a8ff | 227 | if (USART_SetConfig(husart) == HAL_ERROR) |
bogdanm | 0:9b334a45a8ff | 228 | { |
bogdanm | 0:9b334a45a8ff | 229 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 230 | } |
bogdanm | 0:9b334a45a8ff | 231 | |
bogdanm | 0:9b334a45a8ff | 232 | /* In Synchronous mode, the following bits must be kept cleared: |
bogdanm | 0:9b334a45a8ff | 233 | - LINEN bit in the USART_CR2 register |
bogdanm | 0:9b334a45a8ff | 234 | - HDSEL, SCEN and IREN bits in the USART_CR3 register.*/ |
bogdanm | 0:9b334a45a8ff | 235 | husart->Instance->CR2 &= ~USART_CR2_LINEN; |
bogdanm | 0:9b334a45a8ff | 236 | husart->Instance->CR3 &= ~(USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN); |
bogdanm | 0:9b334a45a8ff | 237 | |
bogdanm | 0:9b334a45a8ff | 238 | /* Enable the Peripheral */ |
bogdanm | 0:9b334a45a8ff | 239 | __HAL_USART_ENABLE(husart); |
bogdanm | 0:9b334a45a8ff | 240 | |
bogdanm | 0:9b334a45a8ff | 241 | /* TEACK and/or REACK to check before moving husart->State to Ready */ |
bogdanm | 0:9b334a45a8ff | 242 | return (USART_CheckIdleState(husart)); |
bogdanm | 0:9b334a45a8ff | 243 | } |
bogdanm | 0:9b334a45a8ff | 244 | |
bogdanm | 0:9b334a45a8ff | 245 | /** |
bogdanm | 0:9b334a45a8ff | 246 | * @brief DeInitialize the USART peripheral. |
bogdanm | 0:9b334a45a8ff | 247 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 248 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 249 | */ |
bogdanm | 0:9b334a45a8ff | 250 | HAL_StatusTypeDef HAL_USART_DeInit(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 251 | { |
bogdanm | 0:9b334a45a8ff | 252 | /* Check the USART handle allocation */ |
bogdanm | 0:9b334a45a8ff | 253 | if(husart == NULL) |
bogdanm | 0:9b334a45a8ff | 254 | { |
bogdanm | 0:9b334a45a8ff | 255 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 256 | } |
bogdanm | 0:9b334a45a8ff | 257 | |
bogdanm | 0:9b334a45a8ff | 258 | /* Check the parameters */ |
bogdanm | 0:9b334a45a8ff | 259 | assert_param(IS_USART_INSTANCE(husart->Instance)); |
bogdanm | 0:9b334a45a8ff | 260 | |
bogdanm | 0:9b334a45a8ff | 261 | husart->State = HAL_USART_STATE_BUSY; |
bogdanm | 0:9b334a45a8ff | 262 | |
bogdanm | 0:9b334a45a8ff | 263 | husart->Instance->CR1 = 0x0; |
bogdanm | 0:9b334a45a8ff | 264 | husart->Instance->CR2 = 0x0; |
bogdanm | 0:9b334a45a8ff | 265 | husart->Instance->CR3 = 0x0; |
bogdanm | 0:9b334a45a8ff | 266 | |
bogdanm | 0:9b334a45a8ff | 267 | /* DeInit the low level hardware */ |
bogdanm | 0:9b334a45a8ff | 268 | HAL_USART_MspDeInit(husart); |
bogdanm | 0:9b334a45a8ff | 269 | |
bogdanm | 0:9b334a45a8ff | 270 | husart->ErrorCode = HAL_USART_ERROR_NONE; |
bogdanm | 0:9b334a45a8ff | 271 | husart->State = HAL_USART_STATE_RESET; |
bogdanm | 0:9b334a45a8ff | 272 | |
bogdanm | 0:9b334a45a8ff | 273 | /* Process Unlock */ |
bogdanm | 0:9b334a45a8ff | 274 | __HAL_UNLOCK(husart); |
bogdanm | 0:9b334a45a8ff | 275 | |
bogdanm | 0:9b334a45a8ff | 276 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 277 | } |
bogdanm | 0:9b334a45a8ff | 278 | |
bogdanm | 0:9b334a45a8ff | 279 | /** |
bogdanm | 0:9b334a45a8ff | 280 | * @brief Initialize the USART MSP. |
bogdanm | 0:9b334a45a8ff | 281 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 282 | * @retval None |
bogdanm | 0:9b334a45a8ff | 283 | */ |
bogdanm | 0:9b334a45a8ff | 284 | __weak void HAL_USART_MspInit(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 285 | { |
bogdanm | 0:9b334a45a8ff | 286 | /* NOTE : This function should not be modified, when the callback is needed, |
bogdanm | 0:9b334a45a8ff | 287 | the HAL_USART_MspInit can be implemented in the user file |
bogdanm | 0:9b334a45a8ff | 288 | */ |
bogdanm | 0:9b334a45a8ff | 289 | } |
bogdanm | 0:9b334a45a8ff | 290 | |
bogdanm | 0:9b334a45a8ff | 291 | /** |
bogdanm | 0:9b334a45a8ff | 292 | * @brief DeInitialize the USART MSP. |
bogdanm | 0:9b334a45a8ff | 293 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 294 | * @retval None |
bogdanm | 0:9b334a45a8ff | 295 | */ |
bogdanm | 0:9b334a45a8ff | 296 | __weak void HAL_USART_MspDeInit(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 297 | { |
bogdanm | 0:9b334a45a8ff | 298 | /* NOTE : This function should not be modified, when the callback is needed, |
bogdanm | 0:9b334a45a8ff | 299 | the HAL_USART_MspDeInit can be implemented in the user file |
bogdanm | 0:9b334a45a8ff | 300 | */ |
bogdanm | 0:9b334a45a8ff | 301 | } |
bogdanm | 0:9b334a45a8ff | 302 | |
bogdanm | 0:9b334a45a8ff | 303 | /** |
bogdanm | 0:9b334a45a8ff | 304 | * @} |
bogdanm | 0:9b334a45a8ff | 305 | */ |
bogdanm | 0:9b334a45a8ff | 306 | |
bogdanm | 0:9b334a45a8ff | 307 | /** @defgroup USART_Exported_Functions_Group2 IO operation functions |
bogdanm | 0:9b334a45a8ff | 308 | * @brief USART Transmit and Receive functions |
bogdanm | 0:9b334a45a8ff | 309 | * |
bogdanm | 0:9b334a45a8ff | 310 | @verbatim |
bogdanm | 0:9b334a45a8ff | 311 | =============================================================================== |
bogdanm | 0:9b334a45a8ff | 312 | ##### IO operation functions ##### |
bogdanm | 0:9b334a45a8ff | 313 | =============================================================================== |
bogdanm | 0:9b334a45a8ff | 314 | [..] This subsection provides a set of functions allowing to manage the USART synchronous |
bogdanm | 0:9b334a45a8ff | 315 | data transfers. |
bogdanm | 0:9b334a45a8ff | 316 | |
bogdanm | 0:9b334a45a8ff | 317 | [..] The USART supports master mode only: it cannot receive or send data related to an input |
bogdanm | 0:9b334a45a8ff | 318 | clock (SCLK is always an output). |
bogdanm | 0:9b334a45a8ff | 319 | |
bogdanm | 0:9b334a45a8ff | 320 | (#) There are two modes of transfer: |
bogdanm | 0:9b334a45a8ff | 321 | (++) Blocking mode: The communication is performed in polling mode. |
bogdanm | 0:9b334a45a8ff | 322 | The HAL status of all data processing is returned by the same function |
bogdanm | 0:9b334a45a8ff | 323 | after finishing transfer. |
bogdanm | 0:9b334a45a8ff | 324 | (++) No-Blocking mode: The communication is performed using Interrupts |
bogdanm | 0:9b334a45a8ff | 325 | or DMA, These API's return the HAL status. |
bogdanm | 0:9b334a45a8ff | 326 | The end of the data processing will be indicated through the |
bogdanm | 0:9b334a45a8ff | 327 | dedicated USART IRQ when using Interrupt mode or the DMA IRQ when |
bogdanm | 0:9b334a45a8ff | 328 | using DMA mode. |
bogdanm | 0:9b334a45a8ff | 329 | The HAL_USART_TxCpltCallback(), HAL_USART_RxCpltCallback() and HAL_USART_TxRxCpltCallback() user callbacks |
bogdanm | 0:9b334a45a8ff | 330 | will be executed respectively at the end of the transmit or Receive process |
bogdanm | 0:9b334a45a8ff | 331 | The HAL_USART_ErrorCallback()user callback will be executed when a communication error is detected |
bogdanm | 0:9b334a45a8ff | 332 | |
bogdanm | 0:9b334a45a8ff | 333 | (#) Blocking mode API's are : |
bogdanm | 0:9b334a45a8ff | 334 | (++) HAL_USART_Transmit()in simplex mode |
bogdanm | 0:9b334a45a8ff | 335 | (++) HAL_USART_Receive() in full duplex receive only |
bogdanm | 0:9b334a45a8ff | 336 | (++) HAL_USART_TransmitReceive() in full duplex mode |
bogdanm | 0:9b334a45a8ff | 337 | |
bogdanm | 0:9b334a45a8ff | 338 | (#) Non-Blocking mode API's with Interrupt are : |
bogdanm | 0:9b334a45a8ff | 339 | (++) HAL_USART_Transmit_IT()in simplex mode |
bogdanm | 0:9b334a45a8ff | 340 | (++) HAL_USART_Receive_IT() in full duplex receive only |
bogdanm | 0:9b334a45a8ff | 341 | (++) HAL_USART_TransmitReceive_IT()in full duplex mode |
bogdanm | 0:9b334a45a8ff | 342 | (++) HAL_USART_IRQHandler() |
bogdanm | 0:9b334a45a8ff | 343 | |
bogdanm | 0:9b334a45a8ff | 344 | (#) No-Blocking mode API's with DMA are : |
bogdanm | 0:9b334a45a8ff | 345 | (++) HAL_USART_Transmit_DMA()in simplex mode |
bogdanm | 0:9b334a45a8ff | 346 | (++) HAL_USART_Receive_DMA() in full duplex receive only |
bogdanm | 0:9b334a45a8ff | 347 | (++) HAL_USART_TransmitReceive_DMA() in full duplex mode |
bogdanm | 0:9b334a45a8ff | 348 | (++) HAL_USART_DMAPause() |
bogdanm | 0:9b334a45a8ff | 349 | (++) HAL_USART_DMAResume() |
bogdanm | 0:9b334a45a8ff | 350 | (++) HAL_USART_DMAStop() |
bogdanm | 0:9b334a45a8ff | 351 | |
bogdanm | 0:9b334a45a8ff | 352 | (#) A set of Transfer Complete Callbacks are provided in No_Blocking mode: |
bogdanm | 0:9b334a45a8ff | 353 | (++) HAL_USART_TxCpltCallback() |
bogdanm | 0:9b334a45a8ff | 354 | (++) HAL_USART_RxCpltCallback() |
bogdanm | 0:9b334a45a8ff | 355 | (++) HAL_USART_TxHalfCpltCallback() |
bogdanm | 0:9b334a45a8ff | 356 | (++) HAL_USART_RxHalfCpltCallback() |
bogdanm | 0:9b334a45a8ff | 357 | (++) HAL_USART_ErrorCallback() |
bogdanm | 0:9b334a45a8ff | 358 | (++) HAL_USART_TxRxCpltCallback() |
bogdanm | 0:9b334a45a8ff | 359 | |
bogdanm | 0:9b334a45a8ff | 360 | @endverbatim |
bogdanm | 0:9b334a45a8ff | 361 | * @{ |
bogdanm | 0:9b334a45a8ff | 362 | */ |
bogdanm | 0:9b334a45a8ff | 363 | |
bogdanm | 0:9b334a45a8ff | 364 | /** |
bogdanm | 0:9b334a45a8ff | 365 | * @brief Simplex send an amount of data in blocking mode. |
bogdanm | 0:9b334a45a8ff | 366 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 367 | * @param pTxData: Pointer to data buffer. |
bogdanm | 0:9b334a45a8ff | 368 | * @param Size: Amount of data to be sent. |
bogdanm | 0:9b334a45a8ff | 369 | * @param Timeout: Timeout duration. |
bogdanm | 0:9b334a45a8ff | 370 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 371 | */ |
bogdanm | 0:9b334a45a8ff | 372 | HAL_StatusTypeDef HAL_USART_Transmit(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size, uint32_t Timeout) |
bogdanm | 0:9b334a45a8ff | 373 | { |
bogdanm | 0:9b334a45a8ff | 374 | uint16_t* tmp; |
bogdanm | 0:9b334a45a8ff | 375 | |
bogdanm | 0:9b334a45a8ff | 376 | if(husart->State == HAL_USART_STATE_READY) |
bogdanm | 0:9b334a45a8ff | 377 | { |
bogdanm | 0:9b334a45a8ff | 378 | if((pTxData == NULL) || (Size == 0)) |
bogdanm | 0:9b334a45a8ff | 379 | { |
bogdanm | 0:9b334a45a8ff | 380 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 381 | } |
bogdanm | 0:9b334a45a8ff | 382 | |
bogdanm | 0:9b334a45a8ff | 383 | /* Process Locked */ |
bogdanm | 0:9b334a45a8ff | 384 | __HAL_LOCK(husart); |
bogdanm | 0:9b334a45a8ff | 385 | |
bogdanm | 0:9b334a45a8ff | 386 | husart->ErrorCode = HAL_USART_ERROR_NONE; |
bogdanm | 0:9b334a45a8ff | 387 | husart->State = HAL_USART_STATE_BUSY_TX; |
bogdanm | 0:9b334a45a8ff | 388 | |
bogdanm | 0:9b334a45a8ff | 389 | husart->TxXferSize = Size; |
bogdanm | 0:9b334a45a8ff | 390 | husart->TxXferCount = Size; |
bogdanm | 0:9b334a45a8ff | 391 | |
bogdanm | 0:9b334a45a8ff | 392 | /* Check the remaining data to be sent */ |
bogdanm | 0:9b334a45a8ff | 393 | while(husart->TxXferCount > 0) |
bogdanm | 0:9b334a45a8ff | 394 | { |
bogdanm | 0:9b334a45a8ff | 395 | husart->TxXferCount--; |
bogdanm | 0:9b334a45a8ff | 396 | if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK) |
bogdanm | 0:9b334a45a8ff | 397 | { |
bogdanm | 0:9b334a45a8ff | 398 | return HAL_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 399 | } |
bogdanm | 0:9b334a45a8ff | 400 | if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) |
bogdanm | 0:9b334a45a8ff | 401 | { |
bogdanm | 0:9b334a45a8ff | 402 | tmp = (uint16_t*) pTxData; |
bogdanm | 0:9b334a45a8ff | 403 | husart->Instance->TDR = (*tmp & (uint16_t)0x01FF); |
bogdanm | 0:9b334a45a8ff | 404 | pTxData += 2; |
bogdanm | 0:9b334a45a8ff | 405 | } |
bogdanm | 0:9b334a45a8ff | 406 | else |
bogdanm | 0:9b334a45a8ff | 407 | { |
bogdanm | 0:9b334a45a8ff | 408 | husart->Instance->TDR = (*pTxData++ & (uint8_t)0xFF); |
bogdanm | 0:9b334a45a8ff | 409 | } |
bogdanm | 0:9b334a45a8ff | 410 | } |
bogdanm | 0:9b334a45a8ff | 411 | |
bogdanm | 0:9b334a45a8ff | 412 | if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK) |
bogdanm | 0:9b334a45a8ff | 413 | { |
bogdanm | 0:9b334a45a8ff | 414 | return HAL_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 415 | } |
bogdanm | 0:9b334a45a8ff | 416 | |
bogdanm | 0:9b334a45a8ff | 417 | husart->State = HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 418 | |
bogdanm | 0:9b334a45a8ff | 419 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 420 | __HAL_UNLOCK(husart); |
bogdanm | 0:9b334a45a8ff | 421 | |
bogdanm | 0:9b334a45a8ff | 422 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 423 | } |
bogdanm | 0:9b334a45a8ff | 424 | else |
bogdanm | 0:9b334a45a8ff | 425 | { |
bogdanm | 0:9b334a45a8ff | 426 | return HAL_BUSY; |
bogdanm | 0:9b334a45a8ff | 427 | } |
bogdanm | 0:9b334a45a8ff | 428 | } |
bogdanm | 0:9b334a45a8ff | 429 | |
bogdanm | 0:9b334a45a8ff | 430 | /** |
bogdanm | 0:9b334a45a8ff | 431 | * @brief Receive an amount of data in blocking mode. |
bogdanm | 0:9b334a45a8ff | 432 | * @note To receive synchronous data, dummy data are simultaneously transmitted. |
bogdanm | 0:9b334a45a8ff | 433 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 434 | * @param pRxData: Pointer to data buffer. |
bogdanm | 0:9b334a45a8ff | 435 | * @param Size: Amount of data to be received. |
bogdanm | 0:9b334a45a8ff | 436 | * @param Timeout: Timeout duration. |
bogdanm | 0:9b334a45a8ff | 437 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 438 | */ |
bogdanm | 0:9b334a45a8ff | 439 | HAL_StatusTypeDef HAL_USART_Receive(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size, uint32_t Timeout) |
bogdanm | 0:9b334a45a8ff | 440 | { |
bogdanm | 0:9b334a45a8ff | 441 | uint16_t* tmp; |
bogdanm | 0:9b334a45a8ff | 442 | uint16_t uhMask; |
bogdanm | 0:9b334a45a8ff | 443 | |
bogdanm | 0:9b334a45a8ff | 444 | if(husart->State == HAL_USART_STATE_READY) |
bogdanm | 0:9b334a45a8ff | 445 | { |
bogdanm | 0:9b334a45a8ff | 446 | if((pRxData == NULL) || (Size == 0)) |
bogdanm | 0:9b334a45a8ff | 447 | { |
bogdanm | 0:9b334a45a8ff | 448 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 449 | } |
bogdanm | 0:9b334a45a8ff | 450 | /* Process Locked */ |
bogdanm | 0:9b334a45a8ff | 451 | __HAL_LOCK(husart); |
bogdanm | 0:9b334a45a8ff | 452 | |
bogdanm | 0:9b334a45a8ff | 453 | husart->ErrorCode = HAL_USART_ERROR_NONE; |
bogdanm | 0:9b334a45a8ff | 454 | husart->State = HAL_USART_STATE_BUSY_RX; |
bogdanm | 0:9b334a45a8ff | 455 | |
bogdanm | 0:9b334a45a8ff | 456 | husart->RxXferSize = Size; |
bogdanm | 0:9b334a45a8ff | 457 | husart->RxXferCount = Size; |
bogdanm | 0:9b334a45a8ff | 458 | |
bogdanm | 0:9b334a45a8ff | 459 | /* Computation of USART mask to apply to RDR register */ |
bogdanm | 0:9b334a45a8ff | 460 | USART_MASK_COMPUTATION(husart); |
bogdanm | 0:9b334a45a8ff | 461 | uhMask = husart->Mask; |
bogdanm | 0:9b334a45a8ff | 462 | |
bogdanm | 0:9b334a45a8ff | 463 | /* as long as data have to be received */ |
bogdanm | 0:9b334a45a8ff | 464 | while(husart->RxXferCount > 0) |
bogdanm | 0:9b334a45a8ff | 465 | { |
bogdanm | 0:9b334a45a8ff | 466 | husart->RxXferCount--; |
bogdanm | 0:9b334a45a8ff | 467 | |
bogdanm | 0:9b334a45a8ff | 468 | /* Wait until TC flag is set to send dummy byte in order to generate the |
bogdanm | 0:9b334a45a8ff | 469 | * clock for the slave to send data. |
bogdanm | 0:9b334a45a8ff | 470 | * Whatever the frame length (7, 8 or 9-bit long), the same dummy value |
bogdanm | 0:9b334a45a8ff | 471 | * can be written for all the cases. */ |
bogdanm | 0:9b334a45a8ff | 472 | if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK) |
bogdanm | 0:9b334a45a8ff | 473 | { |
bogdanm | 0:9b334a45a8ff | 474 | return HAL_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 475 | } |
bogdanm | 0:9b334a45a8ff | 476 | husart->Instance->TDR = (USART_DUMMY_DATA & (uint16_t)0x0FF); |
bogdanm | 0:9b334a45a8ff | 477 | |
bogdanm | 0:9b334a45a8ff | 478 | /* Wait for RXNE Flag */ |
bogdanm | 0:9b334a45a8ff | 479 | if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK) |
bogdanm | 0:9b334a45a8ff | 480 | { |
bogdanm | 0:9b334a45a8ff | 481 | return HAL_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 482 | } |
bogdanm | 0:9b334a45a8ff | 483 | |
bogdanm | 0:9b334a45a8ff | 484 | if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) |
bogdanm | 0:9b334a45a8ff | 485 | { |
bogdanm | 0:9b334a45a8ff | 486 | tmp = (uint16_t*) pRxData ; |
bogdanm | 0:9b334a45a8ff | 487 | *tmp = (uint16_t)(husart->Instance->RDR & uhMask); |
bogdanm | 0:9b334a45a8ff | 488 | pRxData +=2; |
bogdanm | 0:9b334a45a8ff | 489 | } |
bogdanm | 0:9b334a45a8ff | 490 | else |
bogdanm | 0:9b334a45a8ff | 491 | { |
bogdanm | 0:9b334a45a8ff | 492 | *pRxData++ = (uint8_t)(husart->Instance->RDR & (uint8_t)uhMask); |
bogdanm | 0:9b334a45a8ff | 493 | } |
bogdanm | 0:9b334a45a8ff | 494 | } |
bogdanm | 0:9b334a45a8ff | 495 | |
bogdanm | 0:9b334a45a8ff | 496 | husart->State = HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 497 | |
bogdanm | 0:9b334a45a8ff | 498 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 499 | __HAL_UNLOCK(husart); |
bogdanm | 0:9b334a45a8ff | 500 | |
bogdanm | 0:9b334a45a8ff | 501 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 502 | } |
bogdanm | 0:9b334a45a8ff | 503 | else |
bogdanm | 0:9b334a45a8ff | 504 | { |
bogdanm | 0:9b334a45a8ff | 505 | return HAL_BUSY; |
bogdanm | 0:9b334a45a8ff | 506 | } |
bogdanm | 0:9b334a45a8ff | 507 | } |
bogdanm | 0:9b334a45a8ff | 508 | |
bogdanm | 0:9b334a45a8ff | 509 | /** |
bogdanm | 0:9b334a45a8ff | 510 | * @brief Full-Duplex Send and Receive an amount of data in blocking mode. |
bogdanm | 0:9b334a45a8ff | 511 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 512 | * @param pTxData: pointer to TX data buffer. |
bogdanm | 0:9b334a45a8ff | 513 | * @param pRxData: pointer to RX data buffer. |
bogdanm | 0:9b334a45a8ff | 514 | * @param Size: amount of data to be sent (same amount to be received). |
bogdanm | 0:9b334a45a8ff | 515 | * @param Timeout: Timeout duration. |
bogdanm | 0:9b334a45a8ff | 516 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 517 | */ |
bogdanm | 0:9b334a45a8ff | 518 | HAL_StatusTypeDef HAL_USART_TransmitReceive(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size, uint32_t Timeout) |
bogdanm | 0:9b334a45a8ff | 519 | { |
bogdanm | 0:9b334a45a8ff | 520 | uint16_t* tmp; |
bogdanm | 0:9b334a45a8ff | 521 | uint16_t uhMask; |
bogdanm | 0:9b334a45a8ff | 522 | |
bogdanm | 0:9b334a45a8ff | 523 | if(husart->State == HAL_USART_STATE_READY) |
bogdanm | 0:9b334a45a8ff | 524 | { |
bogdanm | 0:9b334a45a8ff | 525 | if((pTxData == NULL) || (pRxData == NULL) || (Size == 0)) |
bogdanm | 0:9b334a45a8ff | 526 | { |
bogdanm | 0:9b334a45a8ff | 527 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 528 | } |
bogdanm | 0:9b334a45a8ff | 529 | /* Process Locked */ |
bogdanm | 0:9b334a45a8ff | 530 | __HAL_LOCK(husart); |
bogdanm | 0:9b334a45a8ff | 531 | |
bogdanm | 0:9b334a45a8ff | 532 | husart->ErrorCode = HAL_USART_ERROR_NONE; |
bogdanm | 0:9b334a45a8ff | 533 | husart->State = HAL_USART_STATE_BUSY_RX; |
bogdanm | 0:9b334a45a8ff | 534 | |
bogdanm | 0:9b334a45a8ff | 535 | husart->RxXferSize = Size; |
bogdanm | 0:9b334a45a8ff | 536 | husart->TxXferSize = Size; |
bogdanm | 0:9b334a45a8ff | 537 | husart->TxXferCount = Size; |
bogdanm | 0:9b334a45a8ff | 538 | husart->RxXferCount = Size; |
bogdanm | 0:9b334a45a8ff | 539 | |
bogdanm | 0:9b334a45a8ff | 540 | /* Computation of USART mask to apply to RDR register */ |
bogdanm | 0:9b334a45a8ff | 541 | USART_MASK_COMPUTATION(husart); |
bogdanm | 0:9b334a45a8ff | 542 | uhMask = husart->Mask; |
bogdanm | 0:9b334a45a8ff | 543 | |
bogdanm | 0:9b334a45a8ff | 544 | /* Check the remain data to be sent */ |
bogdanm | 0:9b334a45a8ff | 545 | while(husart->TxXferCount > 0) |
bogdanm | 0:9b334a45a8ff | 546 | { |
bogdanm | 0:9b334a45a8ff | 547 | husart->TxXferCount--; |
bogdanm | 0:9b334a45a8ff | 548 | husart->RxXferCount--; |
bogdanm | 0:9b334a45a8ff | 549 | |
bogdanm | 0:9b334a45a8ff | 550 | /* Wait until TC flag is set to send data */ |
bogdanm | 0:9b334a45a8ff | 551 | if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK) |
bogdanm | 0:9b334a45a8ff | 552 | { |
bogdanm | 0:9b334a45a8ff | 553 | return HAL_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 554 | } |
bogdanm | 0:9b334a45a8ff | 555 | if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) |
bogdanm | 0:9b334a45a8ff | 556 | { |
bogdanm | 0:9b334a45a8ff | 557 | tmp = (uint16_t*) pTxData; |
bogdanm | 0:9b334a45a8ff | 558 | husart->Instance->TDR = (*tmp & uhMask); |
bogdanm | 0:9b334a45a8ff | 559 | pTxData += 2; |
bogdanm | 0:9b334a45a8ff | 560 | } |
bogdanm | 0:9b334a45a8ff | 561 | else |
bogdanm | 0:9b334a45a8ff | 562 | { |
bogdanm | 0:9b334a45a8ff | 563 | husart->Instance->TDR = (*pTxData++ & (uint8_t)uhMask); |
bogdanm | 0:9b334a45a8ff | 564 | } |
bogdanm | 0:9b334a45a8ff | 565 | |
bogdanm | 0:9b334a45a8ff | 566 | /* Wait for RXNE Flag */ |
bogdanm | 0:9b334a45a8ff | 567 | if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK) |
bogdanm | 0:9b334a45a8ff | 568 | { |
bogdanm | 0:9b334a45a8ff | 569 | return HAL_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 570 | } |
bogdanm | 0:9b334a45a8ff | 571 | |
bogdanm | 0:9b334a45a8ff | 572 | if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) |
bogdanm | 0:9b334a45a8ff | 573 | { |
bogdanm | 0:9b334a45a8ff | 574 | tmp = (uint16_t*) pRxData ; |
bogdanm | 0:9b334a45a8ff | 575 | *tmp = (uint16_t)(husart->Instance->RDR & uhMask); |
bogdanm | 0:9b334a45a8ff | 576 | pRxData +=2; |
bogdanm | 0:9b334a45a8ff | 577 | } |
bogdanm | 0:9b334a45a8ff | 578 | else |
bogdanm | 0:9b334a45a8ff | 579 | { |
bogdanm | 0:9b334a45a8ff | 580 | *pRxData++ = (uint8_t)(husart->Instance->RDR & (uint8_t)uhMask); |
bogdanm | 0:9b334a45a8ff | 581 | } |
bogdanm | 0:9b334a45a8ff | 582 | } |
bogdanm | 0:9b334a45a8ff | 583 | |
bogdanm | 0:9b334a45a8ff | 584 | husart->State = HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 585 | |
bogdanm | 0:9b334a45a8ff | 586 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 587 | __HAL_UNLOCK(husart); |
bogdanm | 0:9b334a45a8ff | 588 | |
bogdanm | 0:9b334a45a8ff | 589 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 590 | } |
bogdanm | 0:9b334a45a8ff | 591 | else |
bogdanm | 0:9b334a45a8ff | 592 | { |
bogdanm | 0:9b334a45a8ff | 593 | return HAL_BUSY; |
bogdanm | 0:9b334a45a8ff | 594 | } |
bogdanm | 0:9b334a45a8ff | 595 | } |
bogdanm | 0:9b334a45a8ff | 596 | |
bogdanm | 0:9b334a45a8ff | 597 | /** |
bogdanm | 0:9b334a45a8ff | 598 | * @brief Send an amount of data in interrupt mode. |
bogdanm | 0:9b334a45a8ff | 599 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 600 | * @param pTxData: pointer to data buffer. |
bogdanm | 0:9b334a45a8ff | 601 | * @param Size: amount of data to be sent. |
bogdanm | 0:9b334a45a8ff | 602 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 603 | */ |
bogdanm | 0:9b334a45a8ff | 604 | HAL_StatusTypeDef HAL_USART_Transmit_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size) |
bogdanm | 0:9b334a45a8ff | 605 | { |
bogdanm | 0:9b334a45a8ff | 606 | if(husart->State == HAL_USART_STATE_READY) |
bogdanm | 0:9b334a45a8ff | 607 | { |
bogdanm | 0:9b334a45a8ff | 608 | if((pTxData == NULL ) || (Size == 0)) |
bogdanm | 0:9b334a45a8ff | 609 | { |
bogdanm | 0:9b334a45a8ff | 610 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 611 | } |
bogdanm | 0:9b334a45a8ff | 612 | |
bogdanm | 0:9b334a45a8ff | 613 | /* Process Locked */ |
bogdanm | 0:9b334a45a8ff | 614 | __HAL_LOCK(husart); |
bogdanm | 0:9b334a45a8ff | 615 | |
bogdanm | 0:9b334a45a8ff | 616 | husart->pTxBuffPtr = pTxData; |
bogdanm | 0:9b334a45a8ff | 617 | husart->TxXferSize = Size; |
bogdanm | 0:9b334a45a8ff | 618 | husart->TxXferCount = Size; |
bogdanm | 0:9b334a45a8ff | 619 | |
bogdanm | 0:9b334a45a8ff | 620 | husart->ErrorCode = HAL_USART_ERROR_NONE; |
bogdanm | 0:9b334a45a8ff | 621 | husart->State = HAL_USART_STATE_BUSY_TX; |
bogdanm | 0:9b334a45a8ff | 622 | |
bogdanm | 0:9b334a45a8ff | 623 | /* The USART Error Interrupts: (Frame error, noise error, overrun error) |
bogdanm | 0:9b334a45a8ff | 624 | are not managed by the USART Transmit Process to avoid the overrun interrupt |
bogdanm | 0:9b334a45a8ff | 625 | when the usart mode is configured for transmit and receive "USART_MODE_TX_RX" |
bogdanm | 0:9b334a45a8ff | 626 | to benefit for the frame error and noise interrupts the usart mode should be |
bogdanm | 0:9b334a45a8ff | 627 | configured only for transmit "USART_MODE_TX" */ |
bogdanm | 0:9b334a45a8ff | 628 | |
bogdanm | 0:9b334a45a8ff | 629 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 630 | __HAL_UNLOCK(husart); |
bogdanm | 0:9b334a45a8ff | 631 | |
bogdanm | 0:9b334a45a8ff | 632 | /* Enable the USART Transmit Data Register Empty Interrupt */ |
bogdanm | 0:9b334a45a8ff | 633 | __HAL_USART_ENABLE_IT(husart, USART_IT_TXE); |
bogdanm | 0:9b334a45a8ff | 634 | |
bogdanm | 0:9b334a45a8ff | 635 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 636 | } |
bogdanm | 0:9b334a45a8ff | 637 | else |
bogdanm | 0:9b334a45a8ff | 638 | { |
bogdanm | 0:9b334a45a8ff | 639 | return HAL_BUSY; |
bogdanm | 0:9b334a45a8ff | 640 | } |
bogdanm | 0:9b334a45a8ff | 641 | } |
bogdanm | 0:9b334a45a8ff | 642 | |
bogdanm | 0:9b334a45a8ff | 643 | /** |
bogdanm | 0:9b334a45a8ff | 644 | * @brief Receive an amount of data in blocking mode. |
bogdanm | 0:9b334a45a8ff | 645 | * @note To receive synchronous data, dummy data are simultaneously transmitted. |
bogdanm | 0:9b334a45a8ff | 646 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 647 | * @param pRxData: pointer to data buffer. |
bogdanm | 0:9b334a45a8ff | 648 | * @param Size: amount of data to be received. |
bogdanm | 0:9b334a45a8ff | 649 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 650 | */ |
bogdanm | 0:9b334a45a8ff | 651 | HAL_StatusTypeDef HAL_USART_Receive_IT(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size) |
bogdanm | 0:9b334a45a8ff | 652 | { |
bogdanm | 0:9b334a45a8ff | 653 | if(husart->State == HAL_USART_STATE_READY) |
bogdanm | 0:9b334a45a8ff | 654 | { |
bogdanm | 0:9b334a45a8ff | 655 | if((pRxData == NULL ) || (Size == 0)) |
bogdanm | 0:9b334a45a8ff | 656 | { |
bogdanm | 0:9b334a45a8ff | 657 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 658 | } |
bogdanm | 0:9b334a45a8ff | 659 | /* Process Locked */ |
bogdanm | 0:9b334a45a8ff | 660 | __HAL_LOCK(husart); |
bogdanm | 0:9b334a45a8ff | 661 | |
bogdanm | 0:9b334a45a8ff | 662 | husart->pRxBuffPtr = pRxData; |
bogdanm | 0:9b334a45a8ff | 663 | husart->RxXferSize = Size; |
bogdanm | 0:9b334a45a8ff | 664 | husart->RxXferCount = Size; |
bogdanm | 0:9b334a45a8ff | 665 | |
bogdanm | 0:9b334a45a8ff | 666 | USART_MASK_COMPUTATION(husart); |
bogdanm | 0:9b334a45a8ff | 667 | |
bogdanm | 0:9b334a45a8ff | 668 | husart->ErrorCode = HAL_USART_ERROR_NONE; |
bogdanm | 0:9b334a45a8ff | 669 | husart->State = HAL_USART_STATE_BUSY_RX; |
bogdanm | 0:9b334a45a8ff | 670 | |
bogdanm | 0:9b334a45a8ff | 671 | /* Enable the USART Parity Error Interrupt */ |
bogdanm | 0:9b334a45a8ff | 672 | __HAL_USART_ENABLE_IT(husart, USART_IT_PE); |
bogdanm | 0:9b334a45a8ff | 673 | |
bogdanm | 0:9b334a45a8ff | 674 | /* Enable the USART Error Interrupt: (Frame error, noise error, overrun error) */ |
bogdanm | 0:9b334a45a8ff | 675 | __HAL_USART_ENABLE_IT(husart, USART_IT_ERR); |
bogdanm | 0:9b334a45a8ff | 676 | |
bogdanm | 0:9b334a45a8ff | 677 | /* Enable the USART Data Register not empty Interrupt */ |
bogdanm | 0:9b334a45a8ff | 678 | __HAL_USART_ENABLE_IT(husart, USART_IT_RXNE); |
bogdanm | 0:9b334a45a8ff | 679 | |
bogdanm | 0:9b334a45a8ff | 680 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 681 | __HAL_UNLOCK(husart); |
bogdanm | 0:9b334a45a8ff | 682 | |
bogdanm | 0:9b334a45a8ff | 683 | |
bogdanm | 0:9b334a45a8ff | 684 | /* Send dummy byte in order to generate the clock for the Slave to send the next data */ |
bogdanm | 0:9b334a45a8ff | 685 | if(husart->Init.WordLength == USART_WORDLENGTH_9B) |
bogdanm | 0:9b334a45a8ff | 686 | { |
bogdanm | 0:9b334a45a8ff | 687 | husart->Instance->TDR = (USART_DUMMY_DATA & (uint16_t)0x01FF); |
bogdanm | 0:9b334a45a8ff | 688 | } |
bogdanm | 0:9b334a45a8ff | 689 | else |
bogdanm | 0:9b334a45a8ff | 690 | { |
bogdanm | 0:9b334a45a8ff | 691 | husart->Instance->TDR = (USART_DUMMY_DATA & (uint16_t)0x00FF); |
bogdanm | 0:9b334a45a8ff | 692 | } |
bogdanm | 0:9b334a45a8ff | 693 | |
bogdanm | 0:9b334a45a8ff | 694 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 695 | } |
bogdanm | 0:9b334a45a8ff | 696 | else |
bogdanm | 0:9b334a45a8ff | 697 | { |
bogdanm | 0:9b334a45a8ff | 698 | return HAL_BUSY; |
bogdanm | 0:9b334a45a8ff | 699 | } |
bogdanm | 0:9b334a45a8ff | 700 | } |
bogdanm | 0:9b334a45a8ff | 701 | |
bogdanm | 0:9b334a45a8ff | 702 | /** |
bogdanm | 0:9b334a45a8ff | 703 | * @brief Full-Duplex Send and Receive an amount of data in interrupt mode. |
bogdanm | 0:9b334a45a8ff | 704 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 705 | * @param pTxData: pointer to TX data buffer. |
bogdanm | 0:9b334a45a8ff | 706 | * @param pRxData: pointer to RX data buffer. |
bogdanm | 0:9b334a45a8ff | 707 | * @param Size: amount of data to be sent (same amount to be received). |
bogdanm | 0:9b334a45a8ff | 708 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 709 | */ |
bogdanm | 0:9b334a45a8ff | 710 | HAL_StatusTypeDef HAL_USART_TransmitReceive_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size) |
bogdanm | 0:9b334a45a8ff | 711 | { |
bogdanm | 0:9b334a45a8ff | 712 | |
bogdanm | 0:9b334a45a8ff | 713 | if(husart->State == HAL_USART_STATE_READY) |
bogdanm | 0:9b334a45a8ff | 714 | { |
bogdanm | 0:9b334a45a8ff | 715 | if((pTxData == NULL) || (pRxData == NULL) || (Size == 0)) |
bogdanm | 0:9b334a45a8ff | 716 | { |
bogdanm | 0:9b334a45a8ff | 717 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 718 | } |
bogdanm | 0:9b334a45a8ff | 719 | /* Process Locked */ |
bogdanm | 0:9b334a45a8ff | 720 | __HAL_LOCK(husart); |
bogdanm | 0:9b334a45a8ff | 721 | |
bogdanm | 0:9b334a45a8ff | 722 | husart->pRxBuffPtr = pRxData; |
bogdanm | 0:9b334a45a8ff | 723 | husart->RxXferSize = Size; |
bogdanm | 0:9b334a45a8ff | 724 | husart->RxXferCount = Size; |
bogdanm | 0:9b334a45a8ff | 725 | husart->pTxBuffPtr = pTxData; |
bogdanm | 0:9b334a45a8ff | 726 | husart->TxXferSize = Size; |
bogdanm | 0:9b334a45a8ff | 727 | husart->TxXferCount = Size; |
bogdanm | 0:9b334a45a8ff | 728 | |
bogdanm | 0:9b334a45a8ff | 729 | /* Computation of USART mask to apply to RDR register */ |
bogdanm | 0:9b334a45a8ff | 730 | USART_MASK_COMPUTATION(husart); |
bogdanm | 0:9b334a45a8ff | 731 | |
bogdanm | 0:9b334a45a8ff | 732 | husart->ErrorCode = HAL_USART_ERROR_NONE; |
bogdanm | 0:9b334a45a8ff | 733 | husart->State = HAL_USART_STATE_BUSY_TX_RX; |
bogdanm | 0:9b334a45a8ff | 734 | |
bogdanm | 0:9b334a45a8ff | 735 | /* Enable the USART Data Register not empty Interrupt */ |
bogdanm | 0:9b334a45a8ff | 736 | __HAL_USART_ENABLE_IT(husart, USART_IT_RXNE); |
bogdanm | 0:9b334a45a8ff | 737 | |
bogdanm | 0:9b334a45a8ff | 738 | /* Enable the USART Parity Error Interrupt */ |
bogdanm | 0:9b334a45a8ff | 739 | __HAL_USART_ENABLE_IT(husart, USART_IT_PE); |
bogdanm | 0:9b334a45a8ff | 740 | |
bogdanm | 0:9b334a45a8ff | 741 | /* Enable the USART Error Interrupt: (Frame error, noise error, overrun error) */ |
bogdanm | 0:9b334a45a8ff | 742 | __HAL_USART_ENABLE_IT(husart, USART_IT_ERR); |
bogdanm | 0:9b334a45a8ff | 743 | |
bogdanm | 0:9b334a45a8ff | 744 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 745 | __HAL_UNLOCK(husart); |
bogdanm | 0:9b334a45a8ff | 746 | |
bogdanm | 0:9b334a45a8ff | 747 | /* Enable the USART Transmit Data Register Empty Interrupt */ |
bogdanm | 0:9b334a45a8ff | 748 | __HAL_USART_ENABLE_IT(husart, USART_IT_TXE); |
bogdanm | 0:9b334a45a8ff | 749 | |
bogdanm | 0:9b334a45a8ff | 750 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 751 | } |
bogdanm | 0:9b334a45a8ff | 752 | else |
bogdanm | 0:9b334a45a8ff | 753 | { |
bogdanm | 0:9b334a45a8ff | 754 | return HAL_BUSY; |
bogdanm | 0:9b334a45a8ff | 755 | } |
bogdanm | 0:9b334a45a8ff | 756 | |
bogdanm | 0:9b334a45a8ff | 757 | } |
bogdanm | 0:9b334a45a8ff | 758 | |
bogdanm | 0:9b334a45a8ff | 759 | /** |
bogdanm | 0:9b334a45a8ff | 760 | * @brief Send an amount of data in DMA mode. |
bogdanm | 0:9b334a45a8ff | 761 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 762 | * @param pTxData: pointer to data buffer. |
bogdanm | 0:9b334a45a8ff | 763 | * @param Size: amount of data to be sent. |
bogdanm | 0:9b334a45a8ff | 764 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 765 | */ |
bogdanm | 0:9b334a45a8ff | 766 | HAL_StatusTypeDef HAL_USART_Transmit_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size) |
bogdanm | 0:9b334a45a8ff | 767 | { |
bogdanm | 0:9b334a45a8ff | 768 | uint32_t *tmp; |
bogdanm | 0:9b334a45a8ff | 769 | |
bogdanm | 0:9b334a45a8ff | 770 | if(husart->State == HAL_USART_STATE_READY) |
bogdanm | 0:9b334a45a8ff | 771 | { |
bogdanm | 0:9b334a45a8ff | 772 | if((pTxData == NULL ) || (Size == 0)) |
bogdanm | 0:9b334a45a8ff | 773 | { |
bogdanm | 0:9b334a45a8ff | 774 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 775 | } |
bogdanm | 0:9b334a45a8ff | 776 | /* Process Locked */ |
bogdanm | 0:9b334a45a8ff | 777 | __HAL_LOCK(husart); |
bogdanm | 0:9b334a45a8ff | 778 | |
bogdanm | 0:9b334a45a8ff | 779 | husart->pTxBuffPtr = pTxData; |
bogdanm | 0:9b334a45a8ff | 780 | husart->TxXferSize = Size; |
bogdanm | 0:9b334a45a8ff | 781 | husart->TxXferCount = Size; |
bogdanm | 0:9b334a45a8ff | 782 | |
bogdanm | 0:9b334a45a8ff | 783 | husart->ErrorCode = HAL_USART_ERROR_NONE; |
bogdanm | 0:9b334a45a8ff | 784 | husart->State = HAL_USART_STATE_BUSY_TX; |
bogdanm | 0:9b334a45a8ff | 785 | |
bogdanm | 0:9b334a45a8ff | 786 | /* Set the USART DMA transfer complete callback */ |
bogdanm | 0:9b334a45a8ff | 787 | husart->hdmatx->XferCpltCallback = USART_DMATransmitCplt; |
bogdanm | 0:9b334a45a8ff | 788 | |
bogdanm | 0:9b334a45a8ff | 789 | /* Set the USART DMA Half transfer complete callback */ |
bogdanm | 0:9b334a45a8ff | 790 | husart->hdmatx->XferHalfCpltCallback = USART_DMATxHalfCplt; |
bogdanm | 0:9b334a45a8ff | 791 | |
bogdanm | 0:9b334a45a8ff | 792 | /* Set the DMA error callback */ |
bogdanm | 0:9b334a45a8ff | 793 | husart->hdmatx->XferErrorCallback = USART_DMAError; |
bogdanm | 0:9b334a45a8ff | 794 | |
bogdanm | 0:9b334a45a8ff | 795 | /* Enable the USART transmit DMA channel */ |
bogdanm | 0:9b334a45a8ff | 796 | tmp = (uint32_t*)&pTxData; |
bogdanm | 0:9b334a45a8ff | 797 | HAL_DMA_Start_IT(husart->hdmatx, *(uint32_t*)tmp, (uint32_t)&husart->Instance->TDR, Size); |
bogdanm | 0:9b334a45a8ff | 798 | |
bogdanm | 0:9b334a45a8ff | 799 | /* Clear the TC flag in the ICR register */ |
bogdanm | 0:9b334a45a8ff | 800 | __HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_TCF); |
bogdanm | 0:9b334a45a8ff | 801 | |
bogdanm | 0:9b334a45a8ff | 802 | /* Enable the DMA transfer for transmit request by setting the DMAT bit |
bogdanm | 0:9b334a45a8ff | 803 | in the USART CR3 register */ |
bogdanm | 0:9b334a45a8ff | 804 | husart->Instance->CR3 |= USART_CR3_DMAT; |
bogdanm | 0:9b334a45a8ff | 805 | |
bogdanm | 0:9b334a45a8ff | 806 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 807 | __HAL_UNLOCK(husart); |
bogdanm | 0:9b334a45a8ff | 808 | |
bogdanm | 0:9b334a45a8ff | 809 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 810 | } |
bogdanm | 0:9b334a45a8ff | 811 | else |
bogdanm | 0:9b334a45a8ff | 812 | { |
bogdanm | 0:9b334a45a8ff | 813 | return HAL_BUSY; |
bogdanm | 0:9b334a45a8ff | 814 | } |
bogdanm | 0:9b334a45a8ff | 815 | } |
bogdanm | 0:9b334a45a8ff | 816 | |
bogdanm | 0:9b334a45a8ff | 817 | /** |
bogdanm | 0:9b334a45a8ff | 818 | * @brief Receive an amount of data in DMA mode. |
bogdanm | 0:9b334a45a8ff | 819 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 820 | * @param pRxData: pointer to data buffer. |
bogdanm | 0:9b334a45a8ff | 821 | * @param Size: amount of data to be received. |
bogdanm | 0:9b334a45a8ff | 822 | * @note When the USART parity is enabled (PCE = 1), the received data contain |
bogdanm | 0:9b334a45a8ff | 823 | * the parity bit (MSB position). |
bogdanm | 0:9b334a45a8ff | 824 | * @note The USART DMA transmit channel must be configured in order to generate the clock for the slave. |
bogdanm | 0:9b334a45a8ff | 825 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 826 | */ |
bogdanm | 0:9b334a45a8ff | 827 | HAL_StatusTypeDef HAL_USART_Receive_DMA(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size) |
bogdanm | 0:9b334a45a8ff | 828 | { |
bogdanm | 0:9b334a45a8ff | 829 | uint32_t *tmp; |
bogdanm | 0:9b334a45a8ff | 830 | |
bogdanm | 0:9b334a45a8ff | 831 | if(husart->State == HAL_USART_STATE_READY) |
bogdanm | 0:9b334a45a8ff | 832 | { |
bogdanm | 0:9b334a45a8ff | 833 | if((pRxData == NULL ) || (Size == 0)) |
bogdanm | 0:9b334a45a8ff | 834 | { |
bogdanm | 0:9b334a45a8ff | 835 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 836 | } |
bogdanm | 0:9b334a45a8ff | 837 | |
bogdanm | 0:9b334a45a8ff | 838 | /* Process Locked */ |
bogdanm | 0:9b334a45a8ff | 839 | __HAL_LOCK(husart); |
bogdanm | 0:9b334a45a8ff | 840 | |
bogdanm | 0:9b334a45a8ff | 841 | husart->pRxBuffPtr = pRxData; |
bogdanm | 0:9b334a45a8ff | 842 | husart->RxXferSize = Size; |
bogdanm | 0:9b334a45a8ff | 843 | husart->pTxBuffPtr = pRxData; |
bogdanm | 0:9b334a45a8ff | 844 | husart->TxXferSize = Size; |
bogdanm | 0:9b334a45a8ff | 845 | |
bogdanm | 0:9b334a45a8ff | 846 | husart->ErrorCode = HAL_USART_ERROR_NONE; |
bogdanm | 0:9b334a45a8ff | 847 | husart->State = HAL_USART_STATE_BUSY_RX; |
bogdanm | 0:9b334a45a8ff | 848 | |
bogdanm | 0:9b334a45a8ff | 849 | /* Set the USART DMA Rx transfer complete callback */ |
bogdanm | 0:9b334a45a8ff | 850 | husart->hdmarx->XferCpltCallback = USART_DMAReceiveCplt; |
bogdanm | 0:9b334a45a8ff | 851 | |
bogdanm | 0:9b334a45a8ff | 852 | /* Set the USART DMA Half transfer complete callback */ |
bogdanm | 0:9b334a45a8ff | 853 | husart->hdmarx->XferHalfCpltCallback = USART_DMARxHalfCplt; |
bogdanm | 0:9b334a45a8ff | 854 | |
bogdanm | 0:9b334a45a8ff | 855 | /* Set the USART DMA Rx transfer error callback */ |
bogdanm | 0:9b334a45a8ff | 856 | husart->hdmarx->XferErrorCallback = USART_DMAError; |
bogdanm | 0:9b334a45a8ff | 857 | |
bogdanm | 0:9b334a45a8ff | 858 | /* Enable the USART receive DMA channel */ |
bogdanm | 0:9b334a45a8ff | 859 | tmp = (uint32_t*)&pRxData; |
bogdanm | 0:9b334a45a8ff | 860 | HAL_DMA_Start_IT(husart->hdmarx, (uint32_t)&husart->Instance->RDR, *(uint32_t*)tmp, Size); |
bogdanm | 0:9b334a45a8ff | 861 | |
bogdanm | 0:9b334a45a8ff | 862 | /* Enable the USART transmit DMA channel: the transmit channel is used in order |
bogdanm | 0:9b334a45a8ff | 863 | to generate in the non-blocking mode the clock to the slave device, |
bogdanm | 0:9b334a45a8ff | 864 | this mode isn't a simplex receive mode but a full-duplex receive mode */ |
bogdanm | 0:9b334a45a8ff | 865 | tmp = (uint32_t*)&pRxData; |
bogdanm | 0:9b334a45a8ff | 866 | HAL_DMA_Start_IT(husart->hdmatx, *(uint32_t*)tmp, (uint32_t)&husart->Instance->TDR, Size); |
bogdanm | 0:9b334a45a8ff | 867 | |
bogdanm | 0:9b334a45a8ff | 868 | /* Enable the DMA transfer for the receiver request by setting the DMAR bit |
bogdanm | 0:9b334a45a8ff | 869 | in the USART CR3 register */ |
bogdanm | 0:9b334a45a8ff | 870 | husart->Instance->CR3 |= USART_CR3_DMAR; |
bogdanm | 0:9b334a45a8ff | 871 | |
bogdanm | 0:9b334a45a8ff | 872 | /* Enable the DMA transfer for transmit request by setting the DMAT bit |
bogdanm | 0:9b334a45a8ff | 873 | in the USART CR3 register */ |
bogdanm | 0:9b334a45a8ff | 874 | husart->Instance->CR3 |= USART_CR3_DMAT; |
bogdanm | 0:9b334a45a8ff | 875 | |
bogdanm | 0:9b334a45a8ff | 876 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 877 | __HAL_UNLOCK(husart); |
bogdanm | 0:9b334a45a8ff | 878 | |
bogdanm | 0:9b334a45a8ff | 879 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 880 | } |
bogdanm | 0:9b334a45a8ff | 881 | else |
bogdanm | 0:9b334a45a8ff | 882 | { |
bogdanm | 0:9b334a45a8ff | 883 | return HAL_BUSY; |
bogdanm | 0:9b334a45a8ff | 884 | } |
bogdanm | 0:9b334a45a8ff | 885 | } |
bogdanm | 0:9b334a45a8ff | 886 | |
bogdanm | 0:9b334a45a8ff | 887 | /** |
bogdanm | 0:9b334a45a8ff | 888 | * @brief Full-Duplex Transmit Receive an amount of data in non-blocking mode. |
bogdanm | 0:9b334a45a8ff | 889 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 890 | * @param pTxData: pointer to TX data buffer. |
bogdanm | 0:9b334a45a8ff | 891 | * @param pRxData: pointer to RX data buffer. |
bogdanm | 0:9b334a45a8ff | 892 | * @param Size: amount of data to be received/sent. |
bogdanm | 0:9b334a45a8ff | 893 | * @note When the USART parity is enabled (PCE = 1) the data received contain the parity bit. |
bogdanm | 0:9b334a45a8ff | 894 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 895 | */ |
bogdanm | 0:9b334a45a8ff | 896 | HAL_StatusTypeDef HAL_USART_TransmitReceive_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size) |
bogdanm | 0:9b334a45a8ff | 897 | { |
bogdanm | 0:9b334a45a8ff | 898 | uint32_t *tmp; |
bogdanm | 0:9b334a45a8ff | 899 | |
bogdanm | 0:9b334a45a8ff | 900 | if(husart->State == HAL_USART_STATE_READY) |
bogdanm | 0:9b334a45a8ff | 901 | { |
bogdanm | 0:9b334a45a8ff | 902 | if((pTxData == NULL) || (pRxData == NULL) || (Size == 0)) |
bogdanm | 0:9b334a45a8ff | 903 | { |
bogdanm | 0:9b334a45a8ff | 904 | return HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 905 | } |
bogdanm | 0:9b334a45a8ff | 906 | /* Process Locked */ |
bogdanm | 0:9b334a45a8ff | 907 | __HAL_LOCK(husart); |
bogdanm | 0:9b334a45a8ff | 908 | |
bogdanm | 0:9b334a45a8ff | 909 | husart->pRxBuffPtr = pRxData; |
bogdanm | 0:9b334a45a8ff | 910 | husart->RxXferSize = Size; |
bogdanm | 0:9b334a45a8ff | 911 | husart->pTxBuffPtr = pTxData; |
bogdanm | 0:9b334a45a8ff | 912 | husart->TxXferSize = Size; |
bogdanm | 0:9b334a45a8ff | 913 | |
bogdanm | 0:9b334a45a8ff | 914 | husart->ErrorCode = HAL_USART_ERROR_NONE; |
bogdanm | 0:9b334a45a8ff | 915 | husart->State = HAL_USART_STATE_BUSY_TX_RX; |
bogdanm | 0:9b334a45a8ff | 916 | |
bogdanm | 0:9b334a45a8ff | 917 | /* Set the USART DMA Rx transfer complete callback */ |
bogdanm | 0:9b334a45a8ff | 918 | husart->hdmarx->XferCpltCallback = USART_DMAReceiveCplt; |
bogdanm | 0:9b334a45a8ff | 919 | |
bogdanm | 0:9b334a45a8ff | 920 | /* Set the USART DMA Half transfer complete callback */ |
bogdanm | 0:9b334a45a8ff | 921 | husart->hdmarx->XferHalfCpltCallback = USART_DMARxHalfCplt; |
bogdanm | 0:9b334a45a8ff | 922 | |
bogdanm | 0:9b334a45a8ff | 923 | /* Set the USART DMA Tx transfer complete callback */ |
bogdanm | 0:9b334a45a8ff | 924 | husart->hdmatx->XferCpltCallback = USART_DMATransmitCplt; |
bogdanm | 0:9b334a45a8ff | 925 | |
bogdanm | 0:9b334a45a8ff | 926 | /* Set the USART DMA Half transfer complete callback */ |
bogdanm | 0:9b334a45a8ff | 927 | husart->hdmatx->XferHalfCpltCallback = USART_DMATxHalfCplt; |
bogdanm | 0:9b334a45a8ff | 928 | |
bogdanm | 0:9b334a45a8ff | 929 | /* Set the USART DMA Tx transfer error callback */ |
bogdanm | 0:9b334a45a8ff | 930 | husart->hdmatx->XferErrorCallback = USART_DMAError; |
bogdanm | 0:9b334a45a8ff | 931 | |
bogdanm | 0:9b334a45a8ff | 932 | /* Set the USART DMA Rx transfer error callback */ |
bogdanm | 0:9b334a45a8ff | 933 | husart->hdmarx->XferErrorCallback = USART_DMAError; |
bogdanm | 0:9b334a45a8ff | 934 | |
bogdanm | 0:9b334a45a8ff | 935 | /* Enable the USART receive DMA channel */ |
bogdanm | 0:9b334a45a8ff | 936 | tmp = (uint32_t*)&pRxData; |
bogdanm | 0:9b334a45a8ff | 937 | HAL_DMA_Start_IT(husart->hdmarx, (uint32_t)&husart->Instance->RDR, *(uint32_t*)tmp, Size); |
bogdanm | 0:9b334a45a8ff | 938 | |
bogdanm | 0:9b334a45a8ff | 939 | /* Enable the USART transmit DMA channel */ |
bogdanm | 0:9b334a45a8ff | 940 | tmp = (uint32_t*)&pTxData; |
bogdanm | 0:9b334a45a8ff | 941 | HAL_DMA_Start_IT(husart->hdmatx, *(uint32_t*)tmp, (uint32_t)&husart->Instance->TDR, Size); |
bogdanm | 0:9b334a45a8ff | 942 | |
bogdanm | 0:9b334a45a8ff | 943 | /* Clear the TC flag in the ICR register */ |
bogdanm | 0:9b334a45a8ff | 944 | __HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_TCF); |
bogdanm | 0:9b334a45a8ff | 945 | |
bogdanm | 0:9b334a45a8ff | 946 | /* Enable the DMA transfer for the receiver request by setting the DMAR bit |
bogdanm | 0:9b334a45a8ff | 947 | in the USART CR3 register */ |
bogdanm | 0:9b334a45a8ff | 948 | husart->Instance->CR3 |= USART_CR3_DMAR; |
bogdanm | 0:9b334a45a8ff | 949 | |
bogdanm | 0:9b334a45a8ff | 950 | /* Enable the DMA transfer for transmit request by setting the DMAT bit |
bogdanm | 0:9b334a45a8ff | 951 | in the USART CR3 register */ |
bogdanm | 0:9b334a45a8ff | 952 | husart->Instance->CR3 |= USART_CR3_DMAT; |
bogdanm | 0:9b334a45a8ff | 953 | |
bogdanm | 0:9b334a45a8ff | 954 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 955 | __HAL_UNLOCK(husart); |
bogdanm | 0:9b334a45a8ff | 956 | |
bogdanm | 0:9b334a45a8ff | 957 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 958 | } |
bogdanm | 0:9b334a45a8ff | 959 | else |
bogdanm | 0:9b334a45a8ff | 960 | { |
bogdanm | 0:9b334a45a8ff | 961 | return HAL_BUSY; |
bogdanm | 0:9b334a45a8ff | 962 | } |
bogdanm | 0:9b334a45a8ff | 963 | } |
bogdanm | 0:9b334a45a8ff | 964 | |
bogdanm | 0:9b334a45a8ff | 965 | /** |
bogdanm | 0:9b334a45a8ff | 966 | * @brief Pause the DMA Transfer. |
bogdanm | 0:9b334a45a8ff | 967 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 968 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 969 | */ |
bogdanm | 0:9b334a45a8ff | 970 | HAL_StatusTypeDef HAL_USART_DMAPause(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 971 | { |
bogdanm | 0:9b334a45a8ff | 972 | /* Process Locked */ |
bogdanm | 0:9b334a45a8ff | 973 | __HAL_LOCK(husart); |
bogdanm | 0:9b334a45a8ff | 974 | |
bogdanm | 0:9b334a45a8ff | 975 | if(husart->State == HAL_USART_STATE_BUSY_TX) |
bogdanm | 0:9b334a45a8ff | 976 | { |
bogdanm | 0:9b334a45a8ff | 977 | /* Disable the USART DMA Tx request */ |
bogdanm | 0:9b334a45a8ff | 978 | husart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT); |
bogdanm | 0:9b334a45a8ff | 979 | } |
bogdanm | 0:9b334a45a8ff | 980 | else if(husart->State == HAL_USART_STATE_BUSY_RX) |
bogdanm | 0:9b334a45a8ff | 981 | { |
bogdanm | 0:9b334a45a8ff | 982 | /* Disable the USART DMA Rx request */ |
bogdanm | 0:9b334a45a8ff | 983 | husart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR); |
bogdanm | 0:9b334a45a8ff | 984 | } |
bogdanm | 0:9b334a45a8ff | 985 | else if(husart->State == HAL_USART_STATE_BUSY_TX_RX) |
bogdanm | 0:9b334a45a8ff | 986 | { |
bogdanm | 0:9b334a45a8ff | 987 | /* Disable the USART DMA Tx request */ |
bogdanm | 0:9b334a45a8ff | 988 | husart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT); |
bogdanm | 0:9b334a45a8ff | 989 | /* Disable the USART DMA Rx request */ |
bogdanm | 0:9b334a45a8ff | 990 | husart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR); |
bogdanm | 0:9b334a45a8ff | 991 | } |
bogdanm | 0:9b334a45a8ff | 992 | |
bogdanm | 0:9b334a45a8ff | 993 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 994 | __HAL_UNLOCK(husart); |
bogdanm | 0:9b334a45a8ff | 995 | |
bogdanm | 0:9b334a45a8ff | 996 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 997 | } |
bogdanm | 0:9b334a45a8ff | 998 | |
bogdanm | 0:9b334a45a8ff | 999 | /** |
bogdanm | 0:9b334a45a8ff | 1000 | * @brief Resume the DMA Transfer. |
bogdanm | 0:9b334a45a8ff | 1001 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 1002 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 1003 | */ |
bogdanm | 0:9b334a45a8ff | 1004 | HAL_StatusTypeDef HAL_USART_DMAResume(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1005 | { |
bogdanm | 0:9b334a45a8ff | 1006 | /* Process Locked */ |
bogdanm | 0:9b334a45a8ff | 1007 | __HAL_LOCK(husart); |
bogdanm | 0:9b334a45a8ff | 1008 | |
bogdanm | 0:9b334a45a8ff | 1009 | if(husart->State == HAL_USART_STATE_BUSY_TX) |
bogdanm | 0:9b334a45a8ff | 1010 | { |
bogdanm | 0:9b334a45a8ff | 1011 | /* Enable the USART DMA Tx request */ |
bogdanm | 0:9b334a45a8ff | 1012 | husart->Instance->CR3 |= USART_CR3_DMAT; |
bogdanm | 0:9b334a45a8ff | 1013 | } |
bogdanm | 0:9b334a45a8ff | 1014 | else if(husart->State == HAL_USART_STATE_BUSY_RX) |
bogdanm | 0:9b334a45a8ff | 1015 | { |
bogdanm | 0:9b334a45a8ff | 1016 | /* Clear the Overrun flag before resuming the Rx transfer*/ |
bogdanm | 0:9b334a45a8ff | 1017 | __HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_OREF); |
bogdanm | 0:9b334a45a8ff | 1018 | |
bogdanm | 0:9b334a45a8ff | 1019 | /* Enable the USART DMA Rx request */ |
bogdanm | 0:9b334a45a8ff | 1020 | husart->Instance->CR3 |= USART_CR3_DMAR; |
bogdanm | 0:9b334a45a8ff | 1021 | } |
bogdanm | 0:9b334a45a8ff | 1022 | else if(husart->State == HAL_USART_STATE_BUSY_TX_RX) |
bogdanm | 0:9b334a45a8ff | 1023 | { |
bogdanm | 0:9b334a45a8ff | 1024 | /* Clear the Overrun flag before resuming the Rx transfer*/ |
bogdanm | 0:9b334a45a8ff | 1025 | __HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_OREF); |
bogdanm | 0:9b334a45a8ff | 1026 | |
bogdanm | 0:9b334a45a8ff | 1027 | /* Enable the USART DMA Rx request before the DMA Tx request */ |
bogdanm | 0:9b334a45a8ff | 1028 | husart->Instance->CR3 |= USART_CR3_DMAR; |
bogdanm | 0:9b334a45a8ff | 1029 | |
bogdanm | 0:9b334a45a8ff | 1030 | /* Enable the USART DMA Tx request */ |
bogdanm | 0:9b334a45a8ff | 1031 | husart->Instance->CR3 |= USART_CR3_DMAT; |
bogdanm | 0:9b334a45a8ff | 1032 | } |
bogdanm | 0:9b334a45a8ff | 1033 | |
bogdanm | 0:9b334a45a8ff | 1034 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 1035 | __HAL_UNLOCK(husart); |
bogdanm | 0:9b334a45a8ff | 1036 | |
bogdanm | 0:9b334a45a8ff | 1037 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 1038 | } |
bogdanm | 0:9b334a45a8ff | 1039 | |
bogdanm | 0:9b334a45a8ff | 1040 | /** |
bogdanm | 0:9b334a45a8ff | 1041 | * @brief Stop the DMA Transfer. |
bogdanm | 0:9b334a45a8ff | 1042 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 1043 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 1044 | */ |
bogdanm | 0:9b334a45a8ff | 1045 | HAL_StatusTypeDef HAL_USART_DMAStop(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1046 | { |
bogdanm | 0:9b334a45a8ff | 1047 | /* The Lock is not implemented on this API to allow the user application |
bogdanm | 0:9b334a45a8ff | 1048 | to call the HAL USART API under callbacks HAL_USART_TxCpltCallback() / HAL_USART_RxCpltCallback() / |
bogdanm | 0:9b334a45a8ff | 1049 | HAL_USART_TxHalfCpltCallback / HAL_USART_RxHalfCpltCallback: |
bogdanm | 0:9b334a45a8ff | 1050 | indeed, when HAL_DMA_Abort() API is called, the DMA TX/RX Transfer or Half Transfer complete |
bogdanm | 0:9b334a45a8ff | 1051 | interrupt is generated if the DMA transfer interruption occurs at the middle or at the end of |
bogdanm | 0:9b334a45a8ff | 1052 | the stream and the corresponding call back is executed. */ |
bogdanm | 0:9b334a45a8ff | 1053 | |
bogdanm | 0:9b334a45a8ff | 1054 | /* Disable the USART Tx/Rx DMA requests */ |
bogdanm | 0:9b334a45a8ff | 1055 | husart->Instance->CR3 &= ~USART_CR3_DMAT; |
bogdanm | 0:9b334a45a8ff | 1056 | husart->Instance->CR3 &= ~USART_CR3_DMAR; |
bogdanm | 0:9b334a45a8ff | 1057 | |
bogdanm | 0:9b334a45a8ff | 1058 | /* Abort the USART DMA tx channel */ |
bogdanm | 0:9b334a45a8ff | 1059 | if(husart->hdmatx != NULL) |
bogdanm | 0:9b334a45a8ff | 1060 | { |
bogdanm | 0:9b334a45a8ff | 1061 | HAL_DMA_Abort(husart->hdmatx); |
bogdanm | 0:9b334a45a8ff | 1062 | } |
bogdanm | 0:9b334a45a8ff | 1063 | /* Abort the USART DMA rx channel */ |
bogdanm | 0:9b334a45a8ff | 1064 | if(husart->hdmarx != NULL) |
bogdanm | 0:9b334a45a8ff | 1065 | { |
bogdanm | 0:9b334a45a8ff | 1066 | HAL_DMA_Abort(husart->hdmarx); |
bogdanm | 0:9b334a45a8ff | 1067 | } |
bogdanm | 0:9b334a45a8ff | 1068 | |
bogdanm | 0:9b334a45a8ff | 1069 | husart->State = HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 1070 | |
bogdanm | 0:9b334a45a8ff | 1071 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 1072 | } |
bogdanm | 0:9b334a45a8ff | 1073 | |
bogdanm | 0:9b334a45a8ff | 1074 | /** |
bogdanm | 0:9b334a45a8ff | 1075 | * @brief Handle USART interrupt request. |
bogdanm | 0:9b334a45a8ff | 1076 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 1077 | * @retval None |
bogdanm | 0:9b334a45a8ff | 1078 | */ |
bogdanm | 0:9b334a45a8ff | 1079 | void HAL_USART_IRQHandler(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1080 | { |
bogdanm | 0:9b334a45a8ff | 1081 | |
bogdanm | 0:9b334a45a8ff | 1082 | /* USART parity error interrupt occurred ------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 1083 | if((__HAL_USART_GET_IT(husart, USART_IT_PE) != RESET) && (__HAL_USART_GET_IT_SOURCE(husart, USART_IT_PE) != RESET)) |
bogdanm | 0:9b334a45a8ff | 1084 | { |
bogdanm | 0:9b334a45a8ff | 1085 | __HAL_USART_CLEAR_IT(husart, USART_CLEAR_PEF); |
bogdanm | 0:9b334a45a8ff | 1086 | husart->ErrorCode |= HAL_USART_ERROR_PE; |
bogdanm | 0:9b334a45a8ff | 1087 | /* Set the USART state ready to be able to start again the process */ |
bogdanm | 0:9b334a45a8ff | 1088 | husart->State = HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 1089 | } |
bogdanm | 0:9b334a45a8ff | 1090 | |
bogdanm | 0:9b334a45a8ff | 1091 | /* USART frame error interrupt occurred -------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 1092 | if((__HAL_USART_GET_IT(husart, USART_IT_FE) != RESET) && (__HAL_USART_GET_IT_SOURCE(husart, USART_IT_ERR) != RESET)) |
bogdanm | 0:9b334a45a8ff | 1093 | { |
bogdanm | 0:9b334a45a8ff | 1094 | __HAL_USART_CLEAR_IT(husart, USART_CLEAR_FEF); |
bogdanm | 0:9b334a45a8ff | 1095 | husart->ErrorCode |= HAL_USART_ERROR_FE; |
bogdanm | 0:9b334a45a8ff | 1096 | /* Set the USART state ready to be able to start again the process */ |
bogdanm | 0:9b334a45a8ff | 1097 | husart->State = HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 1098 | } |
bogdanm | 0:9b334a45a8ff | 1099 | |
bogdanm | 0:9b334a45a8ff | 1100 | /* USART noise error interrupt occurred -------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 1101 | if((__HAL_USART_GET_IT(husart, USART_IT_NE) != RESET) && (__HAL_USART_GET_IT_SOURCE(husart, USART_IT_ERR) != RESET)) |
bogdanm | 0:9b334a45a8ff | 1102 | { |
bogdanm | 0:9b334a45a8ff | 1103 | __HAL_USART_CLEAR_IT(husart, USART_CLEAR_NEF); |
bogdanm | 0:9b334a45a8ff | 1104 | husart->ErrorCode |= HAL_USART_ERROR_NE; |
bogdanm | 0:9b334a45a8ff | 1105 | /* Set the USART state ready to be able to start again the process */ |
bogdanm | 0:9b334a45a8ff | 1106 | husart->State = HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 1107 | } |
bogdanm | 0:9b334a45a8ff | 1108 | |
bogdanm | 0:9b334a45a8ff | 1109 | /* USART Over-Run interrupt occurred ----------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 1110 | if((__HAL_USART_GET_IT(husart, USART_IT_ORE) != RESET) && (__HAL_USART_GET_IT_SOURCE(husart, USART_IT_ERR) != RESET)) |
bogdanm | 0:9b334a45a8ff | 1111 | { |
bogdanm | 0:9b334a45a8ff | 1112 | __HAL_USART_CLEAR_IT(husart, USART_CLEAR_OREF); |
bogdanm | 0:9b334a45a8ff | 1113 | husart->ErrorCode |= HAL_USART_ERROR_ORE; |
bogdanm | 0:9b334a45a8ff | 1114 | /* Set the USART state ready to be able to start again the process */ |
bogdanm | 0:9b334a45a8ff | 1115 | husart->State = HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 1116 | } |
bogdanm | 0:9b334a45a8ff | 1117 | |
bogdanm | 0:9b334a45a8ff | 1118 | /* Call USART Error Call back function if need be --------------------------*/ |
bogdanm | 0:9b334a45a8ff | 1119 | if(husart->ErrorCode != HAL_USART_ERROR_NONE) |
bogdanm | 0:9b334a45a8ff | 1120 | { |
bogdanm | 0:9b334a45a8ff | 1121 | HAL_USART_ErrorCallback(husart); |
bogdanm | 0:9b334a45a8ff | 1122 | } |
bogdanm | 0:9b334a45a8ff | 1123 | |
bogdanm | 0:9b334a45a8ff | 1124 | /* USART in mode Receiver --------------------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 1125 | if((__HAL_USART_GET_IT(husart, USART_IT_RXNE) != RESET) && (__HAL_USART_GET_IT_SOURCE(husart, USART_IT_RXNE) != RESET)) |
bogdanm | 0:9b334a45a8ff | 1126 | { |
bogdanm | 0:9b334a45a8ff | 1127 | if(husart->State == HAL_USART_STATE_BUSY_RX) |
bogdanm | 0:9b334a45a8ff | 1128 | { |
bogdanm | 0:9b334a45a8ff | 1129 | USART_Receive_IT(husart); |
bogdanm | 0:9b334a45a8ff | 1130 | } |
bogdanm | 0:9b334a45a8ff | 1131 | else |
bogdanm | 0:9b334a45a8ff | 1132 | { |
bogdanm | 0:9b334a45a8ff | 1133 | USART_TransmitReceive_IT(husart); |
bogdanm | 0:9b334a45a8ff | 1134 | } |
bogdanm | 0:9b334a45a8ff | 1135 | } |
bogdanm | 0:9b334a45a8ff | 1136 | |
bogdanm | 0:9b334a45a8ff | 1137 | /* USART in mode Transmitter -----------------------------------------------*/ |
bogdanm | 0:9b334a45a8ff | 1138 | if((__HAL_USART_GET_IT(husart, USART_IT_TXE) != RESET) &&(__HAL_USART_GET_IT_SOURCE(husart, USART_IT_TXE) != RESET)) |
bogdanm | 0:9b334a45a8ff | 1139 | { |
bogdanm | 0:9b334a45a8ff | 1140 | if(husart->State == HAL_USART_STATE_BUSY_TX) |
bogdanm | 0:9b334a45a8ff | 1141 | { |
bogdanm | 0:9b334a45a8ff | 1142 | USART_Transmit_IT(husart); |
bogdanm | 0:9b334a45a8ff | 1143 | } |
bogdanm | 0:9b334a45a8ff | 1144 | else |
bogdanm | 0:9b334a45a8ff | 1145 | { |
bogdanm | 0:9b334a45a8ff | 1146 | USART_TransmitReceive_IT(husart); |
bogdanm | 0:9b334a45a8ff | 1147 | } |
bogdanm | 0:9b334a45a8ff | 1148 | } |
bogdanm | 0:9b334a45a8ff | 1149 | |
bogdanm | 0:9b334a45a8ff | 1150 | /* USART in mode Transmitter (transmission end) -----------------------------*/ |
bogdanm | 0:9b334a45a8ff | 1151 | if((__HAL_USART_GET_IT(husart, USART_IT_TC) != RESET) &&(__HAL_USART_GET_IT_SOURCE(husart, USART_IT_TC) != RESET)) |
bogdanm | 0:9b334a45a8ff | 1152 | { |
bogdanm | 0:9b334a45a8ff | 1153 | USART_EndTransmit_IT(husart); |
bogdanm | 0:9b334a45a8ff | 1154 | } |
bogdanm | 0:9b334a45a8ff | 1155 | |
bogdanm | 0:9b334a45a8ff | 1156 | } |
bogdanm | 0:9b334a45a8ff | 1157 | |
bogdanm | 0:9b334a45a8ff | 1158 | /** |
bogdanm | 0:9b334a45a8ff | 1159 | * @brief Tx Transfer completed callback. |
bogdanm | 0:9b334a45a8ff | 1160 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 1161 | * @retval None |
bogdanm | 0:9b334a45a8ff | 1162 | */ |
bogdanm | 0:9b334a45a8ff | 1163 | __weak void HAL_USART_TxCpltCallback(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1164 | { |
bogdanm | 0:9b334a45a8ff | 1165 | /* NOTE : This function should not be modified, when the callback is needed, |
bogdanm | 0:9b334a45a8ff | 1166 | the HAL_USART_TxCpltCallback can be implemented in the user file. |
bogdanm | 0:9b334a45a8ff | 1167 | */ |
bogdanm | 0:9b334a45a8ff | 1168 | } |
bogdanm | 0:9b334a45a8ff | 1169 | |
bogdanm | 0:9b334a45a8ff | 1170 | /** |
bogdanm | 0:9b334a45a8ff | 1171 | * @brief Tx Half Transfer completed callback. |
bogdanm | 0:9b334a45a8ff | 1172 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 1173 | * @retval None |
bogdanm | 0:9b334a45a8ff | 1174 | */ |
bogdanm | 0:9b334a45a8ff | 1175 | __weak void HAL_USART_TxHalfCpltCallback(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1176 | { |
bogdanm | 0:9b334a45a8ff | 1177 | /* NOTE: This function should not be modified, when the callback is needed, |
bogdanm | 0:9b334a45a8ff | 1178 | the HAL_USART_TxHalfCpltCallback can be implemented in the user file. |
bogdanm | 0:9b334a45a8ff | 1179 | */ |
bogdanm | 0:9b334a45a8ff | 1180 | } |
bogdanm | 0:9b334a45a8ff | 1181 | |
bogdanm | 0:9b334a45a8ff | 1182 | /** |
bogdanm | 0:9b334a45a8ff | 1183 | * @brief Rx Transfer completed callback. |
bogdanm | 0:9b334a45a8ff | 1184 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 1185 | * @retval None |
bogdanm | 0:9b334a45a8ff | 1186 | */ |
bogdanm | 0:9b334a45a8ff | 1187 | __weak void HAL_USART_RxCpltCallback(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1188 | { |
bogdanm | 0:9b334a45a8ff | 1189 | /* NOTE: This function should not be modified, when the callback is needed, |
bogdanm | 0:9b334a45a8ff | 1190 | the HAL_USART_RxCpltCallback can be implemented in the user file. |
bogdanm | 0:9b334a45a8ff | 1191 | */ |
bogdanm | 0:9b334a45a8ff | 1192 | } |
bogdanm | 0:9b334a45a8ff | 1193 | |
bogdanm | 0:9b334a45a8ff | 1194 | /** |
bogdanm | 0:9b334a45a8ff | 1195 | * @brief Rx Half Transfer completed callback. |
bogdanm | 0:9b334a45a8ff | 1196 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 1197 | * @retval None |
bogdanm | 0:9b334a45a8ff | 1198 | */ |
bogdanm | 0:9b334a45a8ff | 1199 | __weak void HAL_USART_RxHalfCpltCallback(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1200 | { |
bogdanm | 0:9b334a45a8ff | 1201 | /* NOTE : This function should not be modified, when the callback is needed, |
bogdanm | 0:9b334a45a8ff | 1202 | the HAL_USART_RxHalfCpltCallback can be implemented in the user file |
bogdanm | 0:9b334a45a8ff | 1203 | */ |
bogdanm | 0:9b334a45a8ff | 1204 | } |
bogdanm | 0:9b334a45a8ff | 1205 | |
bogdanm | 0:9b334a45a8ff | 1206 | /** |
bogdanm | 0:9b334a45a8ff | 1207 | * @brief Tx/Rx Transfers completed callback for the non-blocking process. |
bogdanm | 0:9b334a45a8ff | 1208 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 1209 | * @retval None |
bogdanm | 0:9b334a45a8ff | 1210 | */ |
bogdanm | 0:9b334a45a8ff | 1211 | __weak void HAL_USART_TxRxCpltCallback(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1212 | { |
bogdanm | 0:9b334a45a8ff | 1213 | /* NOTE : This function should not be modified, when the callback is needed, |
bogdanm | 0:9b334a45a8ff | 1214 | the HAL_USART_TxRxCpltCallback can be implemented in the user file |
bogdanm | 0:9b334a45a8ff | 1215 | */ |
bogdanm | 0:9b334a45a8ff | 1216 | } |
bogdanm | 0:9b334a45a8ff | 1217 | |
bogdanm | 0:9b334a45a8ff | 1218 | /** |
bogdanm | 0:9b334a45a8ff | 1219 | * @brief USART error callback. |
bogdanm | 0:9b334a45a8ff | 1220 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 1221 | * @retval None |
bogdanm | 0:9b334a45a8ff | 1222 | */ |
bogdanm | 0:9b334a45a8ff | 1223 | __weak void HAL_USART_ErrorCallback(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1224 | { |
bogdanm | 0:9b334a45a8ff | 1225 | /* NOTE : This function should not be modified, when the callback is needed, |
bogdanm | 0:9b334a45a8ff | 1226 | the HAL_USART_ErrorCallback can be implemented in the user file. |
bogdanm | 0:9b334a45a8ff | 1227 | */ |
bogdanm | 0:9b334a45a8ff | 1228 | } |
bogdanm | 0:9b334a45a8ff | 1229 | |
bogdanm | 0:9b334a45a8ff | 1230 | /** |
bogdanm | 0:9b334a45a8ff | 1231 | * @} |
bogdanm | 0:9b334a45a8ff | 1232 | */ |
bogdanm | 0:9b334a45a8ff | 1233 | |
bogdanm | 0:9b334a45a8ff | 1234 | /** @defgroup USART_Exported_Functions_Group4 Peripheral State and Error functions |
bogdanm | 0:9b334a45a8ff | 1235 | * @brief USART Peripheral State and Error functions |
bogdanm | 0:9b334a45a8ff | 1236 | * |
bogdanm | 0:9b334a45a8ff | 1237 | @verbatim |
bogdanm | 0:9b334a45a8ff | 1238 | ============================================================================== |
bogdanm | 0:9b334a45a8ff | 1239 | ##### Peripheral State and Error functions ##### |
bogdanm | 0:9b334a45a8ff | 1240 | ============================================================================== |
bogdanm | 0:9b334a45a8ff | 1241 | [..] |
bogdanm | 0:9b334a45a8ff | 1242 | This subsection provides functions allowing to : |
bogdanm | 0:9b334a45a8ff | 1243 | (+) Return the USART handle state |
bogdanm | 0:9b334a45a8ff | 1244 | (+) Return the USART handle error code |
bogdanm | 0:9b334a45a8ff | 1245 | |
bogdanm | 0:9b334a45a8ff | 1246 | @endverbatim |
bogdanm | 0:9b334a45a8ff | 1247 | * @{ |
bogdanm | 0:9b334a45a8ff | 1248 | */ |
bogdanm | 0:9b334a45a8ff | 1249 | |
bogdanm | 0:9b334a45a8ff | 1250 | |
bogdanm | 0:9b334a45a8ff | 1251 | /** |
bogdanm | 0:9b334a45a8ff | 1252 | * @brief Return the USART handle state. |
bogdanm | 0:9b334a45a8ff | 1253 | * @param husart : pointer to a USART_HandleTypeDef structure that contains |
bogdanm | 0:9b334a45a8ff | 1254 | * the configuration information for the specified USART. |
bogdanm | 0:9b334a45a8ff | 1255 | * @retval USART handle state |
bogdanm | 0:9b334a45a8ff | 1256 | */ |
bogdanm | 0:9b334a45a8ff | 1257 | HAL_USART_StateTypeDef HAL_USART_GetState(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1258 | { |
bogdanm | 0:9b334a45a8ff | 1259 | return husart->State; |
bogdanm | 0:9b334a45a8ff | 1260 | } |
bogdanm | 0:9b334a45a8ff | 1261 | |
bogdanm | 0:9b334a45a8ff | 1262 | /** |
bogdanm | 0:9b334a45a8ff | 1263 | * @brief Return the USART error code. |
bogdanm | 0:9b334a45a8ff | 1264 | * @param husart : pointer to a USART_HandleTypeDef structure that contains |
bogdanm | 0:9b334a45a8ff | 1265 | * the configuration information for the specified USART. |
bogdanm | 0:9b334a45a8ff | 1266 | * @retval USART handle Error Code |
bogdanm | 0:9b334a45a8ff | 1267 | */ |
bogdanm | 0:9b334a45a8ff | 1268 | uint32_t HAL_USART_GetError(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1269 | { |
bogdanm | 0:9b334a45a8ff | 1270 | return husart->ErrorCode; |
bogdanm | 0:9b334a45a8ff | 1271 | } |
bogdanm | 0:9b334a45a8ff | 1272 | |
bogdanm | 0:9b334a45a8ff | 1273 | /** |
bogdanm | 0:9b334a45a8ff | 1274 | * @} |
bogdanm | 0:9b334a45a8ff | 1275 | */ |
bogdanm | 0:9b334a45a8ff | 1276 | |
bogdanm | 0:9b334a45a8ff | 1277 | /** |
bogdanm | 0:9b334a45a8ff | 1278 | * @} |
bogdanm | 0:9b334a45a8ff | 1279 | */ |
bogdanm | 0:9b334a45a8ff | 1280 | |
bogdanm | 0:9b334a45a8ff | 1281 | /** @defgroup USART_Private_Functions USART Private Functions |
bogdanm | 0:9b334a45a8ff | 1282 | * @{ |
bogdanm | 0:9b334a45a8ff | 1283 | */ |
bogdanm | 0:9b334a45a8ff | 1284 | |
bogdanm | 0:9b334a45a8ff | 1285 | /** |
bogdanm | 0:9b334a45a8ff | 1286 | * @brief DMA USART transmit process complete callback. |
bogdanm | 0:9b334a45a8ff | 1287 | * @param hdma: DMA handle. |
bogdanm | 0:9b334a45a8ff | 1288 | * @retval None |
bogdanm | 0:9b334a45a8ff | 1289 | */ |
bogdanm | 0:9b334a45a8ff | 1290 | static void USART_DMATransmitCplt(DMA_HandleTypeDef *hdma) |
bogdanm | 0:9b334a45a8ff | 1291 | { |
bogdanm | 0:9b334a45a8ff | 1292 | USART_HandleTypeDef* husart = ( USART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
bogdanm | 0:9b334a45a8ff | 1293 | |
bogdanm | 0:9b334a45a8ff | 1294 | /* DMA Normal mode */ |
bogdanm | 0:9b334a45a8ff | 1295 | if ( HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC) ) |
bogdanm | 0:9b334a45a8ff | 1296 | { |
bogdanm | 0:9b334a45a8ff | 1297 | husart->TxXferCount = 0; |
bogdanm | 0:9b334a45a8ff | 1298 | |
bogdanm | 0:9b334a45a8ff | 1299 | if(husart->State == HAL_USART_STATE_BUSY_TX) |
bogdanm | 0:9b334a45a8ff | 1300 | { |
bogdanm | 0:9b334a45a8ff | 1301 | /* Disable the DMA transfer for transmit request by resetting the DMAT bit |
bogdanm | 0:9b334a45a8ff | 1302 | in the USART CR3 register */ |
bogdanm | 0:9b334a45a8ff | 1303 | husart->Instance->CR3 &= ~(USART_CR3_DMAT); |
bogdanm | 0:9b334a45a8ff | 1304 | |
bogdanm | 0:9b334a45a8ff | 1305 | /* Enable the USART Transmit Complete Interrupt */ |
bogdanm | 0:9b334a45a8ff | 1306 | __HAL_USART_ENABLE_IT(husart, USART_IT_TC); |
bogdanm | 0:9b334a45a8ff | 1307 | } |
bogdanm | 0:9b334a45a8ff | 1308 | } |
bogdanm | 0:9b334a45a8ff | 1309 | /* DMA Circular mode */ |
bogdanm | 0:9b334a45a8ff | 1310 | else |
bogdanm | 0:9b334a45a8ff | 1311 | { |
bogdanm | 0:9b334a45a8ff | 1312 | if(husart->State == HAL_USART_STATE_BUSY_TX) |
bogdanm | 0:9b334a45a8ff | 1313 | { |
bogdanm | 0:9b334a45a8ff | 1314 | HAL_USART_TxCpltCallback(husart); |
bogdanm | 0:9b334a45a8ff | 1315 | } |
bogdanm | 0:9b334a45a8ff | 1316 | } |
bogdanm | 0:9b334a45a8ff | 1317 | } |
bogdanm | 0:9b334a45a8ff | 1318 | |
bogdanm | 0:9b334a45a8ff | 1319 | |
bogdanm | 0:9b334a45a8ff | 1320 | /** |
bogdanm | 0:9b334a45a8ff | 1321 | * @brief DMA USART transmit process half complete callback. |
bogdanm | 0:9b334a45a8ff | 1322 | * @param hdma : DMA handle. |
bogdanm | 0:9b334a45a8ff | 1323 | * @retval None |
bogdanm | 0:9b334a45a8ff | 1324 | */ |
bogdanm | 0:9b334a45a8ff | 1325 | static void USART_DMATxHalfCplt(DMA_HandleTypeDef *hdma) |
bogdanm | 0:9b334a45a8ff | 1326 | { |
bogdanm | 0:9b334a45a8ff | 1327 | USART_HandleTypeDef* husart = (USART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent; |
bogdanm | 0:9b334a45a8ff | 1328 | |
bogdanm | 0:9b334a45a8ff | 1329 | HAL_USART_TxHalfCpltCallback(husart); |
bogdanm | 0:9b334a45a8ff | 1330 | } |
bogdanm | 0:9b334a45a8ff | 1331 | |
bogdanm | 0:9b334a45a8ff | 1332 | /** |
bogdanm | 0:9b334a45a8ff | 1333 | * @brief DMA USART receive process complete callback. |
bogdanm | 0:9b334a45a8ff | 1334 | * @param hdma: DMA handle. |
bogdanm | 0:9b334a45a8ff | 1335 | * @retval None |
bogdanm | 0:9b334a45a8ff | 1336 | */ |
bogdanm | 0:9b334a45a8ff | 1337 | static void USART_DMAReceiveCplt(DMA_HandleTypeDef *hdma) |
bogdanm | 0:9b334a45a8ff | 1338 | { |
bogdanm | 0:9b334a45a8ff | 1339 | USART_HandleTypeDef* husart = ( USART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
bogdanm | 0:9b334a45a8ff | 1340 | |
bogdanm | 0:9b334a45a8ff | 1341 | /* DMA Normal mode */ |
bogdanm | 0:9b334a45a8ff | 1342 | if ( HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC) ) |
bogdanm | 0:9b334a45a8ff | 1343 | { |
bogdanm | 0:9b334a45a8ff | 1344 | husart->RxXferCount = 0; |
bogdanm | 0:9b334a45a8ff | 1345 | |
bogdanm | 0:9b334a45a8ff | 1346 | /* Disable the DMA RX transfer for the receiver request by resetting the DMAR bit |
bogdanm | 0:9b334a45a8ff | 1347 | in USART CR3 register */ |
bogdanm | 0:9b334a45a8ff | 1348 | husart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAR); |
bogdanm | 0:9b334a45a8ff | 1349 | /* similarly, disable the DMA TX transfer that was started to provide the |
bogdanm | 0:9b334a45a8ff | 1350 | clock to the slave device */ |
bogdanm | 0:9b334a45a8ff | 1351 | husart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAT); |
bogdanm | 0:9b334a45a8ff | 1352 | |
bogdanm | 0:9b334a45a8ff | 1353 | if(husart->State == HAL_USART_STATE_BUSY_RX) |
bogdanm | 0:9b334a45a8ff | 1354 | { |
bogdanm | 0:9b334a45a8ff | 1355 | HAL_USART_RxCpltCallback(husart); |
bogdanm | 0:9b334a45a8ff | 1356 | } |
bogdanm | 0:9b334a45a8ff | 1357 | /* The USART state is HAL_USART_STATE_BUSY_TX_RX */ |
bogdanm | 0:9b334a45a8ff | 1358 | else |
bogdanm | 0:9b334a45a8ff | 1359 | { |
bogdanm | 0:9b334a45a8ff | 1360 | HAL_USART_TxRxCpltCallback(husart); |
bogdanm | 0:9b334a45a8ff | 1361 | } |
bogdanm | 0:9b334a45a8ff | 1362 | husart->State= HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 1363 | } |
bogdanm | 0:9b334a45a8ff | 1364 | /* DMA circular mode */ |
bogdanm | 0:9b334a45a8ff | 1365 | else |
bogdanm | 0:9b334a45a8ff | 1366 | { |
bogdanm | 0:9b334a45a8ff | 1367 | if(husart->State == HAL_USART_STATE_BUSY_RX) |
bogdanm | 0:9b334a45a8ff | 1368 | { |
bogdanm | 0:9b334a45a8ff | 1369 | HAL_USART_RxCpltCallback(husart); |
bogdanm | 0:9b334a45a8ff | 1370 | } |
bogdanm | 0:9b334a45a8ff | 1371 | /* The USART state is HAL_USART_STATE_BUSY_TX_RX */ |
bogdanm | 0:9b334a45a8ff | 1372 | else |
bogdanm | 0:9b334a45a8ff | 1373 | { |
bogdanm | 0:9b334a45a8ff | 1374 | HAL_USART_TxRxCpltCallback(husart); |
bogdanm | 0:9b334a45a8ff | 1375 | } |
bogdanm | 0:9b334a45a8ff | 1376 | } |
bogdanm | 0:9b334a45a8ff | 1377 | |
bogdanm | 0:9b334a45a8ff | 1378 | } |
bogdanm | 0:9b334a45a8ff | 1379 | |
bogdanm | 0:9b334a45a8ff | 1380 | /** |
bogdanm | 0:9b334a45a8ff | 1381 | * @brief DMA USART receive process half complete callback. |
bogdanm | 0:9b334a45a8ff | 1382 | * @param hdma : DMA handle. |
bogdanm | 0:9b334a45a8ff | 1383 | * @retval None |
bogdanm | 0:9b334a45a8ff | 1384 | */ |
bogdanm | 0:9b334a45a8ff | 1385 | static void USART_DMARxHalfCplt(DMA_HandleTypeDef *hdma) |
bogdanm | 0:9b334a45a8ff | 1386 | { |
bogdanm | 0:9b334a45a8ff | 1387 | USART_HandleTypeDef* husart = (USART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent; |
bogdanm | 0:9b334a45a8ff | 1388 | |
bogdanm | 0:9b334a45a8ff | 1389 | HAL_USART_RxHalfCpltCallback(husart); |
bogdanm | 0:9b334a45a8ff | 1390 | } |
bogdanm | 0:9b334a45a8ff | 1391 | |
bogdanm | 0:9b334a45a8ff | 1392 | /** |
bogdanm | 0:9b334a45a8ff | 1393 | * @brief DMA USART communication error callback. |
bogdanm | 0:9b334a45a8ff | 1394 | * @param hdma: DMA handle. |
bogdanm | 0:9b334a45a8ff | 1395 | * @retval None |
bogdanm | 0:9b334a45a8ff | 1396 | */ |
bogdanm | 0:9b334a45a8ff | 1397 | static void USART_DMAError(DMA_HandleTypeDef *hdma) |
bogdanm | 0:9b334a45a8ff | 1398 | { |
bogdanm | 0:9b334a45a8ff | 1399 | USART_HandleTypeDef* husart = ( USART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
bogdanm | 0:9b334a45a8ff | 1400 | |
bogdanm | 0:9b334a45a8ff | 1401 | husart->RxXferCount = 0; |
bogdanm | 0:9b334a45a8ff | 1402 | husart->TxXferCount = 0; |
bogdanm | 0:9b334a45a8ff | 1403 | husart->ErrorCode |= HAL_USART_ERROR_DMA; |
bogdanm | 0:9b334a45a8ff | 1404 | husart->State= HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 1405 | |
bogdanm | 0:9b334a45a8ff | 1406 | HAL_USART_ErrorCallback(husart); |
bogdanm | 0:9b334a45a8ff | 1407 | } |
bogdanm | 0:9b334a45a8ff | 1408 | |
bogdanm | 0:9b334a45a8ff | 1409 | /** |
bogdanm | 0:9b334a45a8ff | 1410 | * @brief Handle USART Communication Timeout. |
bogdanm | 0:9b334a45a8ff | 1411 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 1412 | * @param Flag: specifies the USART flag to check. |
bogdanm | 0:9b334a45a8ff | 1413 | * @param Status: the Flag status (SET or RESET). |
bogdanm | 0:9b334a45a8ff | 1414 | * @param Timeout: timeout duration. |
bogdanm | 0:9b334a45a8ff | 1415 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 1416 | */ |
bogdanm | 0:9b334a45a8ff | 1417 | static HAL_StatusTypeDef USART_WaitOnFlagUntilTimeout(USART_HandleTypeDef *husart, uint32_t Flag, FlagStatus Status, uint32_t Timeout) |
bogdanm | 0:9b334a45a8ff | 1418 | { |
bogdanm | 0:9b334a45a8ff | 1419 | uint32_t tickstart = HAL_GetTick(); |
bogdanm | 0:9b334a45a8ff | 1420 | |
bogdanm | 0:9b334a45a8ff | 1421 | /* Wait until flag is set */ |
bogdanm | 0:9b334a45a8ff | 1422 | if(Status == RESET) |
bogdanm | 0:9b334a45a8ff | 1423 | { |
bogdanm | 0:9b334a45a8ff | 1424 | while(__HAL_USART_GET_FLAG(husart, Flag) == RESET) |
bogdanm | 0:9b334a45a8ff | 1425 | { |
bogdanm | 0:9b334a45a8ff | 1426 | /* Check for the Timeout */ |
bogdanm | 0:9b334a45a8ff | 1427 | if(Timeout != HAL_MAX_DELAY) |
bogdanm | 0:9b334a45a8ff | 1428 | { |
bogdanm | 0:9b334a45a8ff | 1429 | if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout)) |
bogdanm | 0:9b334a45a8ff | 1430 | { |
bogdanm | 0:9b334a45a8ff | 1431 | /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ |
bogdanm | 0:9b334a45a8ff | 1432 | __HAL_USART_DISABLE_IT(husart, USART_IT_TXE); |
bogdanm | 0:9b334a45a8ff | 1433 | __HAL_USART_DISABLE_IT(husart, USART_IT_RXNE); |
bogdanm | 0:9b334a45a8ff | 1434 | __HAL_USART_DISABLE_IT(husart, USART_IT_PE); |
bogdanm | 0:9b334a45a8ff | 1435 | __HAL_USART_DISABLE_IT(husart, USART_IT_ERR); |
bogdanm | 0:9b334a45a8ff | 1436 | |
bogdanm | 0:9b334a45a8ff | 1437 | husart->State= HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 1438 | |
bogdanm | 0:9b334a45a8ff | 1439 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 1440 | __HAL_UNLOCK(husart); |
bogdanm | 0:9b334a45a8ff | 1441 | |
bogdanm | 0:9b334a45a8ff | 1442 | return HAL_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 1443 | } |
bogdanm | 0:9b334a45a8ff | 1444 | } |
bogdanm | 0:9b334a45a8ff | 1445 | } |
bogdanm | 0:9b334a45a8ff | 1446 | } |
bogdanm | 0:9b334a45a8ff | 1447 | else |
bogdanm | 0:9b334a45a8ff | 1448 | { |
bogdanm | 0:9b334a45a8ff | 1449 | while(__HAL_USART_GET_FLAG(husart, Flag) != RESET) |
bogdanm | 0:9b334a45a8ff | 1450 | { |
bogdanm | 0:9b334a45a8ff | 1451 | /* Check for the Timeout */ |
bogdanm | 0:9b334a45a8ff | 1452 | if(Timeout != HAL_MAX_DELAY) |
bogdanm | 0:9b334a45a8ff | 1453 | { |
bogdanm | 0:9b334a45a8ff | 1454 | if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout)) |
bogdanm | 0:9b334a45a8ff | 1455 | { |
bogdanm | 0:9b334a45a8ff | 1456 | /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ |
bogdanm | 0:9b334a45a8ff | 1457 | __HAL_USART_DISABLE_IT(husart, USART_IT_TXE); |
bogdanm | 0:9b334a45a8ff | 1458 | __HAL_USART_DISABLE_IT(husart, USART_IT_RXNE); |
bogdanm | 0:9b334a45a8ff | 1459 | __HAL_USART_DISABLE_IT(husart, USART_IT_PE); |
bogdanm | 0:9b334a45a8ff | 1460 | __HAL_USART_DISABLE_IT(husart, USART_IT_ERR); |
bogdanm | 0:9b334a45a8ff | 1461 | |
bogdanm | 0:9b334a45a8ff | 1462 | husart->State= HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 1463 | |
bogdanm | 0:9b334a45a8ff | 1464 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 1465 | __HAL_UNLOCK(husart); |
bogdanm | 0:9b334a45a8ff | 1466 | |
bogdanm | 0:9b334a45a8ff | 1467 | return HAL_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 1468 | } |
bogdanm | 0:9b334a45a8ff | 1469 | } |
bogdanm | 0:9b334a45a8ff | 1470 | } |
bogdanm | 0:9b334a45a8ff | 1471 | } |
bogdanm | 0:9b334a45a8ff | 1472 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 1473 | } |
bogdanm | 0:9b334a45a8ff | 1474 | |
bogdanm | 0:9b334a45a8ff | 1475 | /** |
bogdanm | 0:9b334a45a8ff | 1476 | * @brief Configure the USART peripheral. |
bogdanm | 0:9b334a45a8ff | 1477 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 1478 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 1479 | */ |
bogdanm | 0:9b334a45a8ff | 1480 | static HAL_StatusTypeDef USART_SetConfig(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1481 | { |
bogdanm | 0:9b334a45a8ff | 1482 | uint32_t tmpreg = 0x0; |
bogdanm | 0:9b334a45a8ff | 1483 | USART_ClockSourceTypeDef clocksource = USART_CLOCKSOURCE_UNDEFINED; |
bogdanm | 0:9b334a45a8ff | 1484 | HAL_StatusTypeDef ret = HAL_OK; |
bogdanm | 0:9b334a45a8ff | 1485 | uint16_t brrtemp = 0x0000; |
bogdanm | 0:9b334a45a8ff | 1486 | uint16_t usartdiv = 0x0000; |
bogdanm | 0:9b334a45a8ff | 1487 | |
bogdanm | 0:9b334a45a8ff | 1488 | /* Check the parameters */ |
bogdanm | 0:9b334a45a8ff | 1489 | assert_param(IS_USART_POLARITY(husart->Init.CLKPolarity)); |
bogdanm | 0:9b334a45a8ff | 1490 | assert_param(IS_USART_PHASE(husart->Init.CLKPhase)); |
bogdanm | 0:9b334a45a8ff | 1491 | assert_param(IS_USART_LASTBIT(husart->Init.CLKLastBit)); |
bogdanm | 0:9b334a45a8ff | 1492 | assert_param(IS_USART_BAUDRATE(husart->Init.BaudRate)); |
bogdanm | 0:9b334a45a8ff | 1493 | assert_param(IS_USART_WORD_LENGTH(husart->Init.WordLength)); |
bogdanm | 0:9b334a45a8ff | 1494 | assert_param(IS_USART_STOPBITS(husart->Init.StopBits)); |
bogdanm | 0:9b334a45a8ff | 1495 | assert_param(IS_USART_PARITY(husart->Init.Parity)); |
bogdanm | 0:9b334a45a8ff | 1496 | assert_param(IS_USART_MODE(husart->Init.Mode)); |
bogdanm | 0:9b334a45a8ff | 1497 | |
bogdanm | 0:9b334a45a8ff | 1498 | |
bogdanm | 0:9b334a45a8ff | 1499 | /*-------------------------- USART CR1 Configuration -----------------------*/ |
bogdanm | 0:9b334a45a8ff | 1500 | /* Clear M, PCE, PS, TE and RE bits and configure |
bogdanm | 0:9b334a45a8ff | 1501 | * the USART Word Length, Parity and Mode: |
bogdanm | 0:9b334a45a8ff | 1502 | * set the M bits according to husart->Init.WordLength value |
bogdanm | 0:9b334a45a8ff | 1503 | * set PCE and PS bits according to husart->Init.Parity value |
bogdanm | 0:9b334a45a8ff | 1504 | * set TE and RE bits according to husart->Init.Mode value |
bogdanm | 0:9b334a45a8ff | 1505 | * force OVER8 to 1 to allow to reach the maximum speed (Fclock/8) */ |
bogdanm | 0:9b334a45a8ff | 1506 | tmpreg = (uint32_t)husart->Init.WordLength | husart->Init.Parity | husart->Init.Mode | USART_CR1_OVER8; |
bogdanm | 0:9b334a45a8ff | 1507 | MODIFY_REG(husart->Instance->CR1, USART_CR1_FIELDS, tmpreg); |
bogdanm | 0:9b334a45a8ff | 1508 | |
bogdanm | 0:9b334a45a8ff | 1509 | /*---------------------------- USART CR2 Configuration ---------------------*/ |
bogdanm | 0:9b334a45a8ff | 1510 | /* Clear and configure the USART Clock, CPOL, CPHA, LBCL and STOP bits: |
bogdanm | 0:9b334a45a8ff | 1511 | * set CPOL bit according to husart->Init.CLKPolarity value |
bogdanm | 0:9b334a45a8ff | 1512 | * set CPHA bit according to husart->Init.CLKPhase value |
bogdanm | 0:9b334a45a8ff | 1513 | * set LBCL bit according to husart->Init.CLKLastBit value |
bogdanm | 0:9b334a45a8ff | 1514 | * set STOP[13:12] bits according to husart->Init.StopBits value */ |
bogdanm | 0:9b334a45a8ff | 1515 | tmpreg = (uint32_t)(USART_CLOCK_ENABLE); |
bogdanm | 0:9b334a45a8ff | 1516 | tmpreg |= ((uint32_t)husart->Init.CLKPolarity | (uint32_t)husart->Init.CLKPhase); |
bogdanm | 0:9b334a45a8ff | 1517 | tmpreg |= ((uint32_t)husart->Init.CLKLastBit | (uint32_t)husart->Init.StopBits); |
bogdanm | 0:9b334a45a8ff | 1518 | MODIFY_REG(husart->Instance->CR2, USART_CR2_FIELDS, tmpreg); |
bogdanm | 0:9b334a45a8ff | 1519 | |
bogdanm | 0:9b334a45a8ff | 1520 | /*-------------------------- USART CR3 Configuration -----------------------*/ |
bogdanm | 0:9b334a45a8ff | 1521 | /* no CR3 register configuration */ |
bogdanm | 0:9b334a45a8ff | 1522 | |
bogdanm | 0:9b334a45a8ff | 1523 | /*-------------------------- USART BRR Configuration -----------------------*/ |
bogdanm | 0:9b334a45a8ff | 1524 | /* BRR is filled-up according to OVER8 bit setting which is forced to 1 */ |
bogdanm | 0:9b334a45a8ff | 1525 | USART_GETCLOCKSOURCE(husart, clocksource); |
bogdanm | 0:9b334a45a8ff | 1526 | switch (clocksource) |
bogdanm | 0:9b334a45a8ff | 1527 | { |
bogdanm | 0:9b334a45a8ff | 1528 | case USART_CLOCKSOURCE_PCLK1: |
bogdanm | 0:9b334a45a8ff | 1529 | usartdiv = (uint16_t)((2*HAL_RCC_GetPCLK1Freq()) / husart->Init.BaudRate); |
bogdanm | 0:9b334a45a8ff | 1530 | break; |
bogdanm | 0:9b334a45a8ff | 1531 | case USART_CLOCKSOURCE_PCLK2: |
bogdanm | 0:9b334a45a8ff | 1532 | usartdiv = (uint16_t)((2*HAL_RCC_GetPCLK2Freq()) / husart->Init.BaudRate); |
bogdanm | 0:9b334a45a8ff | 1533 | break; |
bogdanm | 0:9b334a45a8ff | 1534 | case USART_CLOCKSOURCE_HSI: |
bogdanm | 0:9b334a45a8ff | 1535 | usartdiv = (uint16_t)((2*HSI_VALUE) / husart->Init.BaudRate); |
bogdanm | 0:9b334a45a8ff | 1536 | break; |
bogdanm | 0:9b334a45a8ff | 1537 | case USART_CLOCKSOURCE_SYSCLK: |
bogdanm | 0:9b334a45a8ff | 1538 | usartdiv = (uint16_t)((2*HAL_RCC_GetSysClockFreq()) / husart->Init.BaudRate); |
bogdanm | 0:9b334a45a8ff | 1539 | break; |
bogdanm | 0:9b334a45a8ff | 1540 | case USART_CLOCKSOURCE_LSE: |
bogdanm | 0:9b334a45a8ff | 1541 | usartdiv = (uint16_t)((2*LSE_VALUE) / husart->Init.BaudRate); |
bogdanm | 0:9b334a45a8ff | 1542 | break; |
bogdanm | 0:9b334a45a8ff | 1543 | case USART_CLOCKSOURCE_UNDEFINED: |
bogdanm | 0:9b334a45a8ff | 1544 | default: |
bogdanm | 0:9b334a45a8ff | 1545 | ret = HAL_ERROR; |
bogdanm | 0:9b334a45a8ff | 1546 | break; |
bogdanm | 0:9b334a45a8ff | 1547 | } |
bogdanm | 0:9b334a45a8ff | 1548 | |
bogdanm | 0:9b334a45a8ff | 1549 | brrtemp = usartdiv & 0xFFF0; |
bogdanm | 0:9b334a45a8ff | 1550 | brrtemp |= (uint16_t)((usartdiv & (uint16_t)0x000F) >> 1U); |
bogdanm | 0:9b334a45a8ff | 1551 | husart->Instance->BRR = brrtemp; |
bogdanm | 0:9b334a45a8ff | 1552 | |
bogdanm | 0:9b334a45a8ff | 1553 | return ret; |
bogdanm | 0:9b334a45a8ff | 1554 | } |
bogdanm | 0:9b334a45a8ff | 1555 | |
bogdanm | 0:9b334a45a8ff | 1556 | /** |
bogdanm | 0:9b334a45a8ff | 1557 | * @brief Check the USART Idle State. |
bogdanm | 0:9b334a45a8ff | 1558 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 1559 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 1560 | */ |
bogdanm | 0:9b334a45a8ff | 1561 | static HAL_StatusTypeDef USART_CheckIdleState(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1562 | { |
bogdanm | 0:9b334a45a8ff | 1563 | /* Initialize the USART ErrorCode */ |
bogdanm | 0:9b334a45a8ff | 1564 | husart->ErrorCode = HAL_USART_ERROR_NONE; |
bogdanm | 0:9b334a45a8ff | 1565 | |
bogdanm | 0:9b334a45a8ff | 1566 | /* Check if the Transmitter is enabled */ |
bogdanm | 0:9b334a45a8ff | 1567 | if((husart->Instance->CR1 & USART_CR1_TE) == USART_CR1_TE) |
bogdanm | 0:9b334a45a8ff | 1568 | { |
bogdanm | 0:9b334a45a8ff | 1569 | /* Wait until TEACK flag is set */ |
bogdanm | 0:9b334a45a8ff | 1570 | if(USART_WaitOnFlagUntilTimeout(husart, USART_ISR_TEACK, RESET, USART_TEACK_REACK_TIMEOUT) != HAL_OK) |
bogdanm | 0:9b334a45a8ff | 1571 | { |
bogdanm | 0:9b334a45a8ff | 1572 | /* Timeout occurred */ |
bogdanm | 0:9b334a45a8ff | 1573 | return HAL_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 1574 | } |
bogdanm | 0:9b334a45a8ff | 1575 | } |
bogdanm | 0:9b334a45a8ff | 1576 | /* Check if the Receiver is enabled */ |
bogdanm | 0:9b334a45a8ff | 1577 | if((husart->Instance->CR1 & USART_CR1_RE) == USART_CR1_RE) |
bogdanm | 0:9b334a45a8ff | 1578 | { |
bogdanm | 0:9b334a45a8ff | 1579 | /* Wait until REACK flag is set */ |
bogdanm | 0:9b334a45a8ff | 1580 | if(USART_WaitOnFlagUntilTimeout(husart, USART_ISR_REACK, RESET, USART_TEACK_REACK_TIMEOUT) != HAL_OK) |
bogdanm | 0:9b334a45a8ff | 1581 | { |
bogdanm | 0:9b334a45a8ff | 1582 | /* Timeout occurred */ |
bogdanm | 0:9b334a45a8ff | 1583 | return HAL_TIMEOUT; |
bogdanm | 0:9b334a45a8ff | 1584 | } |
bogdanm | 0:9b334a45a8ff | 1585 | } |
bogdanm | 0:9b334a45a8ff | 1586 | |
bogdanm | 0:9b334a45a8ff | 1587 | /* Initialize the USART state*/ |
bogdanm | 0:9b334a45a8ff | 1588 | husart->State= HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 1589 | |
bogdanm | 0:9b334a45a8ff | 1590 | /* Process Unlocked */ |
bogdanm | 0:9b334a45a8ff | 1591 | __HAL_UNLOCK(husart); |
bogdanm | 0:9b334a45a8ff | 1592 | |
bogdanm | 0:9b334a45a8ff | 1593 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 1594 | } |
bogdanm | 0:9b334a45a8ff | 1595 | |
bogdanm | 0:9b334a45a8ff | 1596 | /** |
bogdanm | 0:9b334a45a8ff | 1597 | * @brief Simplex send an amount of data in non-blocking mode. |
bogdanm | 0:9b334a45a8ff | 1598 | * @note Function called under interruption only, once |
bogdanm | 0:9b334a45a8ff | 1599 | * interruptions have been enabled by HAL_USART_Transmit_IT(). |
bogdanm | 0:9b334a45a8ff | 1600 | * @note The USART errors are not managed to avoid the overrun error. |
bogdanm | 0:9b334a45a8ff | 1601 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 1602 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 1603 | */ |
bogdanm | 0:9b334a45a8ff | 1604 | static HAL_StatusTypeDef USART_Transmit_IT(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1605 | { |
bogdanm | 0:9b334a45a8ff | 1606 | uint16_t* tmp; |
bogdanm | 0:9b334a45a8ff | 1607 | |
bogdanm | 0:9b334a45a8ff | 1608 | if(husart->State == HAL_USART_STATE_BUSY_TX) |
bogdanm | 0:9b334a45a8ff | 1609 | { |
bogdanm | 0:9b334a45a8ff | 1610 | |
bogdanm | 0:9b334a45a8ff | 1611 | if(husart->TxXferCount == 0) |
bogdanm | 0:9b334a45a8ff | 1612 | { |
bogdanm | 0:9b334a45a8ff | 1613 | /* Disable the USART Transmit Complete Interrupt */ |
bogdanm | 0:9b334a45a8ff | 1614 | __HAL_USART_DISABLE_IT(husart, USART_IT_TXE); |
bogdanm | 0:9b334a45a8ff | 1615 | |
bogdanm | 0:9b334a45a8ff | 1616 | /* Enable the USART Transmit Complete Interrupt */ |
bogdanm | 0:9b334a45a8ff | 1617 | __HAL_USART_ENABLE_IT(husart, USART_IT_TC); |
bogdanm | 0:9b334a45a8ff | 1618 | |
bogdanm | 0:9b334a45a8ff | 1619 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 1620 | } |
bogdanm | 0:9b334a45a8ff | 1621 | else |
bogdanm | 0:9b334a45a8ff | 1622 | { |
bogdanm | 0:9b334a45a8ff | 1623 | if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) |
bogdanm | 0:9b334a45a8ff | 1624 | { |
bogdanm | 0:9b334a45a8ff | 1625 | tmp = (uint16_t*) husart->pTxBuffPtr; |
bogdanm | 0:9b334a45a8ff | 1626 | husart->Instance->TDR = (*tmp & (uint16_t)0x01FF); |
bogdanm | 0:9b334a45a8ff | 1627 | husart->pTxBuffPtr += 2; |
bogdanm | 0:9b334a45a8ff | 1628 | } |
bogdanm | 0:9b334a45a8ff | 1629 | else |
bogdanm | 0:9b334a45a8ff | 1630 | { |
bogdanm | 0:9b334a45a8ff | 1631 | husart->Instance->TDR = (uint8_t)(*husart->pTxBuffPtr++ & (uint8_t)0xFF); |
bogdanm | 0:9b334a45a8ff | 1632 | } |
bogdanm | 0:9b334a45a8ff | 1633 | |
bogdanm | 0:9b334a45a8ff | 1634 | husart->TxXferCount--; |
bogdanm | 0:9b334a45a8ff | 1635 | |
bogdanm | 0:9b334a45a8ff | 1636 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 1637 | } |
bogdanm | 0:9b334a45a8ff | 1638 | } |
bogdanm | 0:9b334a45a8ff | 1639 | else |
bogdanm | 0:9b334a45a8ff | 1640 | { |
bogdanm | 0:9b334a45a8ff | 1641 | return HAL_BUSY; |
bogdanm | 0:9b334a45a8ff | 1642 | } |
bogdanm | 0:9b334a45a8ff | 1643 | } |
bogdanm | 0:9b334a45a8ff | 1644 | |
bogdanm | 0:9b334a45a8ff | 1645 | |
bogdanm | 0:9b334a45a8ff | 1646 | /** |
bogdanm | 0:9b334a45a8ff | 1647 | * @brief Wraps up transmission in non-blocking mode. |
bogdanm | 0:9b334a45a8ff | 1648 | * @param husart: pointer to a USART_HandleTypeDef structure that contains |
bogdanm | 0:9b334a45a8ff | 1649 | * the configuration information for the specified USART module. |
bogdanm | 0:9b334a45a8ff | 1650 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 1651 | */ |
bogdanm | 0:9b334a45a8ff | 1652 | static HAL_StatusTypeDef USART_EndTransmit_IT(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1653 | { |
bogdanm | 0:9b334a45a8ff | 1654 | /* Disable the USART Transmit Complete Interrupt */ |
bogdanm | 0:9b334a45a8ff | 1655 | __HAL_USART_DISABLE_IT(husart, USART_IT_TC); |
bogdanm | 0:9b334a45a8ff | 1656 | |
bogdanm | 0:9b334a45a8ff | 1657 | /* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */ |
bogdanm | 0:9b334a45a8ff | 1658 | __HAL_USART_DISABLE_IT(husart, USART_IT_ERR); |
bogdanm | 0:9b334a45a8ff | 1659 | |
bogdanm | 0:9b334a45a8ff | 1660 | husart->State = HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 1661 | |
bogdanm | 0:9b334a45a8ff | 1662 | HAL_USART_TxCpltCallback(husart); |
bogdanm | 0:9b334a45a8ff | 1663 | |
bogdanm | 0:9b334a45a8ff | 1664 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 1665 | } |
bogdanm | 0:9b334a45a8ff | 1666 | |
bogdanm | 0:9b334a45a8ff | 1667 | |
bogdanm | 0:9b334a45a8ff | 1668 | /** |
bogdanm | 0:9b334a45a8ff | 1669 | * @brief Simplex receive an amount of data in non-blocking mode. |
bogdanm | 0:9b334a45a8ff | 1670 | * @note Function called under interruption only, once |
bogdanm | 0:9b334a45a8ff | 1671 | * interruptions have been enabled by HAL_USART_Receive_IT(). |
bogdanm | 0:9b334a45a8ff | 1672 | * @param husart: USART handle |
bogdanm | 0:9b334a45a8ff | 1673 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 1674 | */ |
bogdanm | 0:9b334a45a8ff | 1675 | static HAL_StatusTypeDef USART_Receive_IT(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1676 | { |
bogdanm | 0:9b334a45a8ff | 1677 | uint16_t* tmp; |
bogdanm | 0:9b334a45a8ff | 1678 | uint16_t uhMask = husart->Mask; |
bogdanm | 0:9b334a45a8ff | 1679 | |
bogdanm | 0:9b334a45a8ff | 1680 | if(husart->State == HAL_USART_STATE_BUSY_RX) |
bogdanm | 0:9b334a45a8ff | 1681 | { |
bogdanm | 0:9b334a45a8ff | 1682 | |
bogdanm | 0:9b334a45a8ff | 1683 | if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) |
bogdanm | 0:9b334a45a8ff | 1684 | { |
bogdanm | 0:9b334a45a8ff | 1685 | tmp = (uint16_t*) husart->pRxBuffPtr; |
bogdanm | 0:9b334a45a8ff | 1686 | *tmp = (uint16_t)(husart->Instance->RDR & uhMask); |
bogdanm | 0:9b334a45a8ff | 1687 | husart->pRxBuffPtr += 2; |
bogdanm | 0:9b334a45a8ff | 1688 | } |
bogdanm | 0:9b334a45a8ff | 1689 | else |
bogdanm | 0:9b334a45a8ff | 1690 | { |
bogdanm | 0:9b334a45a8ff | 1691 | *husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->RDR & (uint8_t)uhMask); |
bogdanm | 0:9b334a45a8ff | 1692 | } |
bogdanm | 0:9b334a45a8ff | 1693 | /* Send dummy byte in order to generate the clock for the Slave to Send the next data */ |
bogdanm | 0:9b334a45a8ff | 1694 | husart->Instance->TDR = (USART_DUMMY_DATA & (uint16_t)0x00FF); |
bogdanm | 0:9b334a45a8ff | 1695 | |
bogdanm | 0:9b334a45a8ff | 1696 | if(--husart->RxXferCount == 0) |
bogdanm | 0:9b334a45a8ff | 1697 | { |
bogdanm | 0:9b334a45a8ff | 1698 | __HAL_USART_DISABLE_IT(husart, USART_IT_RXNE); |
bogdanm | 0:9b334a45a8ff | 1699 | |
bogdanm | 0:9b334a45a8ff | 1700 | /* Disable the USART Parity Error Interrupt */ |
bogdanm | 0:9b334a45a8ff | 1701 | __HAL_USART_DISABLE_IT(husart, USART_IT_PE); |
bogdanm | 0:9b334a45a8ff | 1702 | |
bogdanm | 0:9b334a45a8ff | 1703 | /* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */ |
bogdanm | 0:9b334a45a8ff | 1704 | __HAL_USART_DISABLE_IT(husart, USART_IT_ERR); |
bogdanm | 0:9b334a45a8ff | 1705 | |
bogdanm | 0:9b334a45a8ff | 1706 | husart->State = HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 1707 | |
bogdanm | 0:9b334a45a8ff | 1708 | HAL_USART_RxCpltCallback(husart); |
bogdanm | 0:9b334a45a8ff | 1709 | |
bogdanm | 0:9b334a45a8ff | 1710 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 1711 | } |
bogdanm | 0:9b334a45a8ff | 1712 | |
bogdanm | 0:9b334a45a8ff | 1713 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 1714 | } |
bogdanm | 0:9b334a45a8ff | 1715 | else |
bogdanm | 0:9b334a45a8ff | 1716 | { |
bogdanm | 0:9b334a45a8ff | 1717 | return HAL_BUSY; |
bogdanm | 0:9b334a45a8ff | 1718 | } |
bogdanm | 0:9b334a45a8ff | 1719 | } |
bogdanm | 0:9b334a45a8ff | 1720 | |
bogdanm | 0:9b334a45a8ff | 1721 | /** |
bogdanm | 0:9b334a45a8ff | 1722 | * @brief Full-Duplex Send receive an amount of data in full-duplex mode (non-blocking). |
bogdanm | 0:9b334a45a8ff | 1723 | * @note Function called under interruption only, once |
bogdanm | 0:9b334a45a8ff | 1724 | * interruptions have been enabled by HAL_USART_TransmitReceive_IT(). |
bogdanm | 0:9b334a45a8ff | 1725 | * @param husart: USART handle. |
bogdanm | 0:9b334a45a8ff | 1726 | * @retval HAL status |
bogdanm | 0:9b334a45a8ff | 1727 | */ |
bogdanm | 0:9b334a45a8ff | 1728 | static HAL_StatusTypeDef USART_TransmitReceive_IT(USART_HandleTypeDef *husart) |
bogdanm | 0:9b334a45a8ff | 1729 | { |
bogdanm | 0:9b334a45a8ff | 1730 | uint16_t* tmp; |
bogdanm | 0:9b334a45a8ff | 1731 | uint16_t uhMask = husart->Mask; |
bogdanm | 0:9b334a45a8ff | 1732 | |
bogdanm | 0:9b334a45a8ff | 1733 | if(husart->State == HAL_USART_STATE_BUSY_TX_RX) |
bogdanm | 0:9b334a45a8ff | 1734 | { |
bogdanm | 0:9b334a45a8ff | 1735 | |
bogdanm | 0:9b334a45a8ff | 1736 | if(husart->TxXferCount != 0x00) |
bogdanm | 0:9b334a45a8ff | 1737 | { |
bogdanm | 0:9b334a45a8ff | 1738 | if(__HAL_USART_GET_FLAG(husart, USART_FLAG_TXE) != RESET) |
bogdanm | 0:9b334a45a8ff | 1739 | { |
bogdanm | 0:9b334a45a8ff | 1740 | if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) |
bogdanm | 0:9b334a45a8ff | 1741 | { |
bogdanm | 0:9b334a45a8ff | 1742 | tmp = (uint16_t*) husart->pTxBuffPtr; |
bogdanm | 0:9b334a45a8ff | 1743 | husart->Instance->TDR = (uint16_t)(*tmp & uhMask); |
bogdanm | 0:9b334a45a8ff | 1744 | husart->pTxBuffPtr += 2; |
bogdanm | 0:9b334a45a8ff | 1745 | } |
bogdanm | 0:9b334a45a8ff | 1746 | else |
bogdanm | 0:9b334a45a8ff | 1747 | { |
bogdanm | 0:9b334a45a8ff | 1748 | husart->Instance->TDR = (uint8_t)(*husart->pTxBuffPtr++ & (uint8_t)uhMask); |
bogdanm | 0:9b334a45a8ff | 1749 | } |
bogdanm | 0:9b334a45a8ff | 1750 | husart->TxXferCount--; |
bogdanm | 0:9b334a45a8ff | 1751 | |
bogdanm | 0:9b334a45a8ff | 1752 | /* Check the latest data transmitted */ |
bogdanm | 0:9b334a45a8ff | 1753 | if(husart->TxXferCount == 0) |
bogdanm | 0:9b334a45a8ff | 1754 | { |
bogdanm | 0:9b334a45a8ff | 1755 | __HAL_USART_DISABLE_IT(husart, USART_IT_TXE); |
bogdanm | 0:9b334a45a8ff | 1756 | } |
bogdanm | 0:9b334a45a8ff | 1757 | } |
bogdanm | 0:9b334a45a8ff | 1758 | } |
bogdanm | 0:9b334a45a8ff | 1759 | |
bogdanm | 0:9b334a45a8ff | 1760 | if(husart->RxXferCount != 0x00) |
bogdanm | 0:9b334a45a8ff | 1761 | { |
bogdanm | 0:9b334a45a8ff | 1762 | if(__HAL_USART_GET_FLAG(husart, USART_FLAG_RXNE) != RESET) |
bogdanm | 0:9b334a45a8ff | 1763 | { |
bogdanm | 0:9b334a45a8ff | 1764 | if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) |
bogdanm | 0:9b334a45a8ff | 1765 | { |
bogdanm | 0:9b334a45a8ff | 1766 | tmp = (uint16_t*) husart->pRxBuffPtr; |
bogdanm | 0:9b334a45a8ff | 1767 | *tmp = (uint16_t)(husart->Instance->RDR & uhMask); |
bogdanm | 0:9b334a45a8ff | 1768 | husart->pRxBuffPtr += 2; |
bogdanm | 0:9b334a45a8ff | 1769 | } |
bogdanm | 0:9b334a45a8ff | 1770 | else |
bogdanm | 0:9b334a45a8ff | 1771 | { |
bogdanm | 0:9b334a45a8ff | 1772 | *husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->RDR & (uint8_t)uhMask); |
bogdanm | 0:9b334a45a8ff | 1773 | } |
bogdanm | 0:9b334a45a8ff | 1774 | husart->RxXferCount--; |
bogdanm | 0:9b334a45a8ff | 1775 | } |
bogdanm | 0:9b334a45a8ff | 1776 | } |
bogdanm | 0:9b334a45a8ff | 1777 | |
bogdanm | 0:9b334a45a8ff | 1778 | /* Check the latest data received */ |
bogdanm | 0:9b334a45a8ff | 1779 | if(husart->RxXferCount == 0) |
bogdanm | 0:9b334a45a8ff | 1780 | { |
bogdanm | 0:9b334a45a8ff | 1781 | __HAL_USART_DISABLE_IT(husart, USART_IT_RXNE); |
bogdanm | 0:9b334a45a8ff | 1782 | |
bogdanm | 0:9b334a45a8ff | 1783 | /* Disable the USART Parity Error Interrupt */ |
bogdanm | 0:9b334a45a8ff | 1784 | __HAL_USART_DISABLE_IT(husart, USART_IT_PE); |
bogdanm | 0:9b334a45a8ff | 1785 | |
bogdanm | 0:9b334a45a8ff | 1786 | /* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */ |
bogdanm | 0:9b334a45a8ff | 1787 | __HAL_USART_DISABLE_IT(husart, USART_IT_ERR); |
bogdanm | 0:9b334a45a8ff | 1788 | |
bogdanm | 0:9b334a45a8ff | 1789 | husart->State = HAL_USART_STATE_READY; |
bogdanm | 0:9b334a45a8ff | 1790 | |
bogdanm | 0:9b334a45a8ff | 1791 | HAL_USART_TxRxCpltCallback(husart); |
bogdanm | 0:9b334a45a8ff | 1792 | |
bogdanm | 0:9b334a45a8ff | 1793 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 1794 | } |
bogdanm | 0:9b334a45a8ff | 1795 | |
bogdanm | 0:9b334a45a8ff | 1796 | return HAL_OK; |
bogdanm | 0:9b334a45a8ff | 1797 | } |
bogdanm | 0:9b334a45a8ff | 1798 | else |
bogdanm | 0:9b334a45a8ff | 1799 | { |
bogdanm | 0:9b334a45a8ff | 1800 | return HAL_BUSY; |
bogdanm | 0:9b334a45a8ff | 1801 | } |
bogdanm | 0:9b334a45a8ff | 1802 | } |
bogdanm | 0:9b334a45a8ff | 1803 | |
bogdanm | 0:9b334a45a8ff | 1804 | /** |
bogdanm | 0:9b334a45a8ff | 1805 | * @} |
bogdanm | 0:9b334a45a8ff | 1806 | */ |
bogdanm | 0:9b334a45a8ff | 1807 | |
bogdanm | 0:9b334a45a8ff | 1808 | #endif /* HAL_USART_MODULE_ENABLED */ |
bogdanm | 0:9b334a45a8ff | 1809 | /** |
bogdanm | 0:9b334a45a8ff | 1810 | * @} |
bogdanm | 0:9b334a45a8ff | 1811 | */ |
bogdanm | 0:9b334a45a8ff | 1812 | |
bogdanm | 0:9b334a45a8ff | 1813 | /** |
bogdanm | 0:9b334a45a8ff | 1814 | * @} |
bogdanm | 0:9b334a45a8ff | 1815 | */ |
bogdanm | 0:9b334a45a8ff | 1816 | |
bogdanm | 0:9b334a45a8ff | 1817 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |