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targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_uart_ex.c@638:56887a2974b9, 2016-09-08 (annotated)
- Committer:
- lzbpli
- Date:
- Thu Sep 08 02:46:37 2016 +0000
- Revision:
- 638:56887a2974b9
- Parent:
- 489:119543c9f674
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Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 376:cb4d9db17537 | 1 | /** |
mbed_official | 376:cb4d9db17537 | 2 | ****************************************************************************** |
mbed_official | 376:cb4d9db17537 | 3 | * @file stm32l0xx_hal_uart_ex.c |
mbed_official | 376:cb4d9db17537 | 4 | * @author MCD Application Team |
mbed_official | 489:119543c9f674 | 5 | * @version V1.2.0 |
mbed_official | 489:119543c9f674 | 6 | * @date 06-February-2015 |
mbed_official | 376:cb4d9db17537 | 7 | * @brief Extended UART HAL module driver. |
mbed_official | 376:cb4d9db17537 | 8 | * |
mbed_official | 376:cb4d9db17537 | 9 | * This file provides firmware functions to manage the following |
mbed_official | 376:cb4d9db17537 | 10 | * functionalities of the Inter Integrated Circuit (UART) peripheral: |
mbed_official | 376:cb4d9db17537 | 11 | * + Extended Control methods |
mbed_official | 376:cb4d9db17537 | 12 | * |
mbed_official | 376:cb4d9db17537 | 13 | @verbatim |
mbed_official | 376:cb4d9db17537 | 14 | ============================================================================== |
mbed_official | 376:cb4d9db17537 | 15 | ##### UART peripheral extended features ##### |
mbed_official | 376:cb4d9db17537 | 16 | ============================================================================== |
mbed_official | 376:cb4d9db17537 | 17 | |
mbed_official | 376:cb4d9db17537 | 18 | [..] Comparing to other previous devices, the UART interface for STM32L0XX |
mbed_official | 376:cb4d9db17537 | 19 | devices contains the following additional features |
mbed_official | 376:cb4d9db17537 | 20 | |
mbed_official | 376:cb4d9db17537 | 21 | (+) Possibility to disable or enable Analog Noise Filter |
mbed_official | 376:cb4d9db17537 | 22 | (+) Use of a configured Digital Noise Filter |
mbed_official | 376:cb4d9db17537 | 23 | (+) Disable or enable wakeup from Stop mode |
mbed_official | 376:cb4d9db17537 | 24 | |
mbed_official | 376:cb4d9db17537 | 25 | ##### How to use this driver ##### |
mbed_official | 376:cb4d9db17537 | 26 | ============================================================================== |
mbed_official | 376:cb4d9db17537 | 27 | [..] This driver provides functions to configure Noise Filter |
mbed_official | 376:cb4d9db17537 | 28 | |
mbed_official | 376:cb4d9db17537 | 29 | @endverbatim |
mbed_official | 376:cb4d9db17537 | 30 | ****************************************************************************** |
mbed_official | 376:cb4d9db17537 | 31 | * @attention |
mbed_official | 376:cb4d9db17537 | 32 | * |
mbed_official | 489:119543c9f674 | 33 | * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> |
mbed_official | 376:cb4d9db17537 | 34 | * |
mbed_official | 376:cb4d9db17537 | 35 | * Redistribution and use in source and binary forms, with or without modification, |
mbed_official | 376:cb4d9db17537 | 36 | * are permitted provided that the following conditions are met: |
mbed_official | 376:cb4d9db17537 | 37 | * 1. Redistributions of source code must retain the above copyright notice, |
mbed_official | 376:cb4d9db17537 | 38 | * this list of conditions and the following disclaimer. |
mbed_official | 376:cb4d9db17537 | 39 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
mbed_official | 376:cb4d9db17537 | 40 | * this list of conditions and the following disclaimer in the documentation |
mbed_official | 376:cb4d9db17537 | 41 | * and/or other materials provided with the distribution. |
mbed_official | 376:cb4d9db17537 | 42 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
mbed_official | 376:cb4d9db17537 | 43 | * may be used to endorse or promote products derived from this software |
mbed_official | 376:cb4d9db17537 | 44 | * without specific prior written permission. |
mbed_official | 376:cb4d9db17537 | 45 | * |
mbed_official | 376:cb4d9db17537 | 46 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
mbed_official | 376:cb4d9db17537 | 47 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
mbed_official | 376:cb4d9db17537 | 48 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
mbed_official | 376:cb4d9db17537 | 49 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
mbed_official | 376:cb4d9db17537 | 50 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
mbed_official | 376:cb4d9db17537 | 51 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
mbed_official | 376:cb4d9db17537 | 52 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
mbed_official | 376:cb4d9db17537 | 53 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
mbed_official | 376:cb4d9db17537 | 54 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
mbed_official | 376:cb4d9db17537 | 55 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 376:cb4d9db17537 | 56 | * |
mbed_official | 376:cb4d9db17537 | 57 | ****************************************************************************** |
mbed_official | 376:cb4d9db17537 | 58 | */ |
mbed_official | 376:cb4d9db17537 | 59 | |
mbed_official | 376:cb4d9db17537 | 60 | /* Includes ------------------------------------------------------------------*/ |
mbed_official | 376:cb4d9db17537 | 61 | #include "stm32l0xx_hal.h" |
mbed_official | 376:cb4d9db17537 | 62 | |
mbed_official | 376:cb4d9db17537 | 63 | /** @addtogroup STM32L0xx_HAL_Driver |
mbed_official | 376:cb4d9db17537 | 64 | * @{ |
mbed_official | 376:cb4d9db17537 | 65 | */ |
mbed_official | 376:cb4d9db17537 | 66 | |
mbed_official | 489:119543c9f674 | 67 | /** @addtogroup UARTEx |
mbed_official | 376:cb4d9db17537 | 68 | * @brief UARTEx module driver |
mbed_official | 376:cb4d9db17537 | 69 | * @{ |
mbed_official | 376:cb4d9db17537 | 70 | */ |
mbed_official | 376:cb4d9db17537 | 71 | |
mbed_official | 376:cb4d9db17537 | 72 | #ifdef HAL_UART_MODULE_ENABLED |
mbed_official | 376:cb4d9db17537 | 73 | |
mbed_official | 376:cb4d9db17537 | 74 | /* Private typedef -----------------------------------------------------------*/ |
mbed_official | 376:cb4d9db17537 | 75 | /* Private define ------------------------------------------------------------*/ |
mbed_official | 376:cb4d9db17537 | 76 | #define UART_REACK_TIMEOUT ((uint32_t) 1000) |
mbed_official | 376:cb4d9db17537 | 77 | /* Private macro -------------------------------------------------------------*/ |
mbed_official | 376:cb4d9db17537 | 78 | /* Private variables ---------------------------------------------------------*/ |
mbed_official | 376:cb4d9db17537 | 79 | /* Private function prototypes -----------------------------------------------*/ |
mbed_official | 376:cb4d9db17537 | 80 | static void UART_Wakeup_AddressConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection); |
mbed_official | 376:cb4d9db17537 | 81 | /* Private functions ---------------------------------------------------------*/ |
mbed_official | 376:cb4d9db17537 | 82 | |
mbed_official | 489:119543c9f674 | 83 | /** @addtogroup UARTEx_Exported_Functions |
mbed_official | 376:cb4d9db17537 | 84 | * @{ |
mbed_official | 376:cb4d9db17537 | 85 | */ |
mbed_official | 376:cb4d9db17537 | 86 | |
mbed_official | 489:119543c9f674 | 87 | /** @addtogroup UARTEx_Exported_Functions_Group1 |
mbed_official | 376:cb4d9db17537 | 88 | * @brief Extended Initialization and Configuration Functions |
mbed_official | 376:cb4d9db17537 | 89 | |
mbed_official | 376:cb4d9db17537 | 90 | * |
mbed_official | 376:cb4d9db17537 | 91 | @verbatim |
mbed_official | 376:cb4d9db17537 | 92 | =============================================================================== |
mbed_official | 376:cb4d9db17537 | 93 | ##### Initialization and Configuration functions ##### |
mbed_official | 376:cb4d9db17537 | 94 | =============================================================================== |
mbed_official | 376:cb4d9db17537 | 95 | [..] |
mbed_official | 376:cb4d9db17537 | 96 | The HAL_RS485Ex_Init() API follows respectively the UART RS485 mode |
mbed_official | 376:cb4d9db17537 | 97 | configuration procedures (details for the procedures are available in reference manual). |
mbed_official | 376:cb4d9db17537 | 98 | |
mbed_official | 376:cb4d9db17537 | 99 | @endverbatim |
mbed_official | 376:cb4d9db17537 | 100 | * @{ |
mbed_official | 376:cb4d9db17537 | 101 | */ |
mbed_official | 376:cb4d9db17537 | 102 | |
mbed_official | 376:cb4d9db17537 | 103 | /** |
mbed_official | 376:cb4d9db17537 | 104 | * @brief Initializes the RS485 Driver enable feature according to the specified |
mbed_official | 376:cb4d9db17537 | 105 | * parameters in the UART_InitTypeDef and creates the associated handle . |
mbed_official | 376:cb4d9db17537 | 106 | * @param huart: uart handle |
mbed_official | 376:cb4d9db17537 | 107 | * @param Polarity: select the driver enable polarity |
mbed_official | 376:cb4d9db17537 | 108 | * This parameter can be one of the following values: |
mbed_official | 376:cb4d9db17537 | 109 | * @arg UART_DE_POLARITY_HIGH: DE signal is active high |
mbed_official | 376:cb4d9db17537 | 110 | * @arg UART_DE_POLARITY_LOW: DE signal is active low |
mbed_official | 376:cb4d9db17537 | 111 | * @param AssertionTime: Driver Enable assertion time |
mbed_official | 376:cb4d9db17537 | 112 | * 5-bit value defining the time between the activation of the DE (Driver Enable) |
mbed_official | 376:cb4d9db17537 | 113 | * signal and the beginning of the start bit. It is expressed in sample time |
mbed_official | 376:cb4d9db17537 | 114 | * units (1/8 or 1/16 bit time, depending on the oversampling rate) |
mbed_official | 376:cb4d9db17537 | 115 | * @param DeassertionTime: Driver Enable deassertion time |
mbed_official | 376:cb4d9db17537 | 116 | * 5-bit value defining the time between the end of the last stop bit, in a |
mbed_official | 376:cb4d9db17537 | 117 | * transmitted message, and the de-activation of the DE (Driver Enable) signal. |
mbed_official | 376:cb4d9db17537 | 118 | * It is expressed in sample time units (1/8 or 1/16 bit time, depending on the |
mbed_official | 376:cb4d9db17537 | 119 | * oversampling rate). |
mbed_official | 376:cb4d9db17537 | 120 | * @retval HAL status |
mbed_official | 376:cb4d9db17537 | 121 | */ |
mbed_official | 376:cb4d9db17537 | 122 | HAL_StatusTypeDef HAL_RS485Ex_Init(UART_HandleTypeDef *huart, uint32_t Polarity, uint32_t AssertionTime, uint32_t DeassertionTime) |
mbed_official | 376:cb4d9db17537 | 123 | { |
mbed_official | 376:cb4d9db17537 | 124 | uint32_t temp = 0x0; |
mbed_official | 376:cb4d9db17537 | 125 | |
mbed_official | 376:cb4d9db17537 | 126 | /* Check the UART handle allocation */ |
mbed_official | 489:119543c9f674 | 127 | if(huart == NULL) |
mbed_official | 376:cb4d9db17537 | 128 | { |
mbed_official | 376:cb4d9db17537 | 129 | return HAL_ERROR; |
mbed_official | 376:cb4d9db17537 | 130 | } |
mbed_official | 376:cb4d9db17537 | 131 | |
mbed_official | 376:cb4d9db17537 | 132 | /* Check the Driver Enable polarity */ |
mbed_official | 376:cb4d9db17537 | 133 | assert_param(IS_UART_DE_POLARITY(Polarity)); |
mbed_official | 376:cb4d9db17537 | 134 | |
mbed_official | 376:cb4d9db17537 | 135 | /* Check the Driver Enable assertion time */ |
mbed_official | 376:cb4d9db17537 | 136 | assert_param(IS_UART_ASSERTIONTIME(AssertionTime)); |
mbed_official | 376:cb4d9db17537 | 137 | |
mbed_official | 376:cb4d9db17537 | 138 | /* Check the Driver Enable deassertion time */ |
mbed_official | 376:cb4d9db17537 | 139 | assert_param(IS_UART_DEASSERTIONTIME(DeassertionTime)); |
mbed_official | 376:cb4d9db17537 | 140 | |
mbed_official | 376:cb4d9db17537 | 141 | if(huart->State == HAL_UART_STATE_RESET) |
mbed_official | 376:cb4d9db17537 | 142 | { |
mbed_official | 376:cb4d9db17537 | 143 | /* Init the low level hardware : GPIO, CLOCK, CORTEX */ |
mbed_official | 376:cb4d9db17537 | 144 | HAL_UART_MspInit(huart); |
mbed_official | 376:cb4d9db17537 | 145 | } |
mbed_official | 376:cb4d9db17537 | 146 | |
mbed_official | 376:cb4d9db17537 | 147 | huart->State = HAL_UART_STATE_BUSY; |
mbed_official | 376:cb4d9db17537 | 148 | |
mbed_official | 376:cb4d9db17537 | 149 | /* Disable the Peripheral */ |
mbed_official | 376:cb4d9db17537 | 150 | __HAL_UART_DISABLE(huart); |
mbed_official | 376:cb4d9db17537 | 151 | |
mbed_official | 376:cb4d9db17537 | 152 | /* Set the UART Communication parameters */ |
mbed_official | 376:cb4d9db17537 | 153 | UART_SetConfig(huart); |
mbed_official | 376:cb4d9db17537 | 154 | |
mbed_official | 376:cb4d9db17537 | 155 | if(huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT) |
mbed_official | 376:cb4d9db17537 | 156 | { |
mbed_official | 376:cb4d9db17537 | 157 | UART_AdvFeatureConfig(huart); |
mbed_official | 376:cb4d9db17537 | 158 | } |
mbed_official | 376:cb4d9db17537 | 159 | |
mbed_official | 376:cb4d9db17537 | 160 | /* Enable the Driver Enable mode by setting the DEM bit in the CR3 register */ |
mbed_official | 376:cb4d9db17537 | 161 | huart->Instance->CR3 |= USART_CR3_DEM; |
mbed_official | 376:cb4d9db17537 | 162 | |
mbed_official | 376:cb4d9db17537 | 163 | /* Set the Driver Enable polarity */ |
mbed_official | 376:cb4d9db17537 | 164 | MODIFY_REG(huart->Instance->CR3, USART_CR3_DEP, Polarity); |
mbed_official | 376:cb4d9db17537 | 165 | |
mbed_official | 376:cb4d9db17537 | 166 | /* Set the Driver Enable assertion and deassertion times */ |
mbed_official | 376:cb4d9db17537 | 167 | temp = (AssertionTime << UART_CR1_DEAT_ADDRESS_LSB_POS); |
mbed_official | 376:cb4d9db17537 | 168 | temp |= (DeassertionTime << UART_CR1_DEDT_ADDRESS_LSB_POS); |
mbed_official | 376:cb4d9db17537 | 169 | MODIFY_REG(huart->Instance->CR1, (USART_CR1_DEDT|USART_CR1_DEAT), temp); |
mbed_official | 376:cb4d9db17537 | 170 | |
mbed_official | 376:cb4d9db17537 | 171 | /* Enable the Peripheral */ |
mbed_official | 376:cb4d9db17537 | 172 | __HAL_UART_ENABLE(huart); |
mbed_official | 376:cb4d9db17537 | 173 | |
mbed_official | 376:cb4d9db17537 | 174 | /* TEACK and/or REACK to check before moving huart->State to Ready */ |
mbed_official | 376:cb4d9db17537 | 175 | return (UART_CheckIdleState(huart)); |
mbed_official | 376:cb4d9db17537 | 176 | } |
mbed_official | 376:cb4d9db17537 | 177 | |
mbed_official | 376:cb4d9db17537 | 178 | |
mbed_official | 376:cb4d9db17537 | 179 | /** |
mbed_official | 376:cb4d9db17537 | 180 | * @} |
mbed_official | 376:cb4d9db17537 | 181 | */ |
mbed_official | 376:cb4d9db17537 | 182 | |
mbed_official | 489:119543c9f674 | 183 | /** @addtogroup UARTEx_Exported_Functions_Group2 |
mbed_official | 376:cb4d9db17537 | 184 | * @brief management functions |
mbed_official | 376:cb4d9db17537 | 185 | * |
mbed_official | 376:cb4d9db17537 | 186 | @verbatim |
mbed_official | 376:cb4d9db17537 | 187 | =============================================================================== |
mbed_official | 376:cb4d9db17537 | 188 | ##### Peripheral Control funtions ##### |
mbed_official | 376:cb4d9db17537 | 189 | =============================================================================== |
mbed_official | 376:cb4d9db17537 | 190 | [..] This section provides functions allowing to: |
mbed_official | 376:cb4d9db17537 | 191 | (+) UART_AdvFeatureConfig() API optionally configures the UART advanced features |
mbed_official | 376:cb4d9db17537 | 192 | (+) HAL_MultiProcessorEx_AddressLength_Set() API optionally sets the UART node address |
mbed_official | 376:cb4d9db17537 | 193 | detection length to more than 4 bits for multiprocessor address mark wake up. |
mbed_official | 376:cb4d9db17537 | 194 | (+) HAL_UARTEx_EnableStopMode() API enables the UART to wake up the MCU from stop mode |
mbed_official | 376:cb4d9db17537 | 195 | (+) HAL_UARTEx_DisableStopMode() API disables the above functionality |
mbed_official | 376:cb4d9db17537 | 196 | (+) HAL_UARTEx_EnableClockStopMode() API enables the UART HSI clock during stop mode |
mbed_official | 376:cb4d9db17537 | 197 | (+) HAL_UARTEx_DisableClockStopMode() API disables the above functionality |
mbed_official | 376:cb4d9db17537 | 198 | (+) UART_Wakeup_AddressConfig() API configures the wake-up from stop mode parameters |
mbed_official | 376:cb4d9db17537 | 199 | |
mbed_official | 376:cb4d9db17537 | 200 | @endverbatim |
mbed_official | 376:cb4d9db17537 | 201 | * @{ |
mbed_official | 376:cb4d9db17537 | 202 | */ |
mbed_official | 376:cb4d9db17537 | 203 | |
mbed_official | 376:cb4d9db17537 | 204 | /** |
mbed_official | 376:cb4d9db17537 | 205 | * @brief Enable UART Stop Mode |
mbed_official | 376:cb4d9db17537 | 206 | * The UART is able to wake up the MCU from Stop mode as long as UART clock is HSI or LSE |
mbed_official | 376:cb4d9db17537 | 207 | * @param huart: uart handle |
mbed_official | 376:cb4d9db17537 | 208 | * @retval HAL status |
mbed_official | 376:cb4d9db17537 | 209 | */ |
mbed_official | 376:cb4d9db17537 | 210 | HAL_StatusTypeDef HAL_UARTEx_EnableStopMode(UART_HandleTypeDef *huart) |
mbed_official | 376:cb4d9db17537 | 211 | { |
mbed_official | 376:cb4d9db17537 | 212 | /* Process Locked */ |
mbed_official | 376:cb4d9db17537 | 213 | __HAL_LOCK(huart); |
mbed_official | 376:cb4d9db17537 | 214 | |
mbed_official | 376:cb4d9db17537 | 215 | huart->State = HAL_UART_STATE_BUSY; |
mbed_official | 376:cb4d9db17537 | 216 | |
mbed_official | 376:cb4d9db17537 | 217 | /* Set the USART UESM bit */ |
mbed_official | 376:cb4d9db17537 | 218 | huart->Instance->CR1 |= USART_CR1_UESM; |
mbed_official | 376:cb4d9db17537 | 219 | |
mbed_official | 376:cb4d9db17537 | 220 | huart->State = HAL_UART_STATE_READY; |
mbed_official | 376:cb4d9db17537 | 221 | |
mbed_official | 376:cb4d9db17537 | 222 | /* Process Unlocked */ |
mbed_official | 376:cb4d9db17537 | 223 | __HAL_UNLOCK(huart); |
mbed_official | 376:cb4d9db17537 | 224 | |
mbed_official | 376:cb4d9db17537 | 225 | return HAL_OK; |
mbed_official | 376:cb4d9db17537 | 226 | } |
mbed_official | 376:cb4d9db17537 | 227 | |
mbed_official | 376:cb4d9db17537 | 228 | /** |
mbed_official | 376:cb4d9db17537 | 229 | * @brief Enable UART Clock in Stop Mode |
mbed_official | 376:cb4d9db17537 | 230 | * The UART keeps the Clock ON during Stop mode |
mbed_official | 376:cb4d9db17537 | 231 | * @param huart: uart handle |
mbed_official | 376:cb4d9db17537 | 232 | * @retval HAL status |
mbed_official | 376:cb4d9db17537 | 233 | */ |
mbed_official | 376:cb4d9db17537 | 234 | HAL_StatusTypeDef HAL_UARTEx_EnableClockStopMode(UART_HandleTypeDef *huart) |
mbed_official | 376:cb4d9db17537 | 235 | { |
mbed_official | 376:cb4d9db17537 | 236 | /* Process Locked */ |
mbed_official | 376:cb4d9db17537 | 237 | __HAL_LOCK(huart); |
mbed_official | 376:cb4d9db17537 | 238 | |
mbed_official | 376:cb4d9db17537 | 239 | huart->State = HAL_UART_STATE_BUSY; |
mbed_official | 376:cb4d9db17537 | 240 | |
mbed_official | 376:cb4d9db17537 | 241 | /* Set the USART UESM bit */ |
mbed_official | 376:cb4d9db17537 | 242 | huart->Instance->CR3 |= USART_CR3_UCESM; |
mbed_official | 376:cb4d9db17537 | 243 | |
mbed_official | 376:cb4d9db17537 | 244 | huart->State = HAL_UART_STATE_READY; |
mbed_official | 376:cb4d9db17537 | 245 | |
mbed_official | 376:cb4d9db17537 | 246 | /* Process Unlocked */ |
mbed_official | 376:cb4d9db17537 | 247 | __HAL_UNLOCK(huart); |
mbed_official | 376:cb4d9db17537 | 248 | |
mbed_official | 376:cb4d9db17537 | 249 | return HAL_OK; |
mbed_official | 376:cb4d9db17537 | 250 | } |
mbed_official | 376:cb4d9db17537 | 251 | |
mbed_official | 376:cb4d9db17537 | 252 | /** |
mbed_official | 376:cb4d9db17537 | 253 | * @brief Disable UART Stop Mode |
mbed_official | 376:cb4d9db17537 | 254 | * @param huart: uart handle |
mbed_official | 376:cb4d9db17537 | 255 | * @retval HAL status |
mbed_official | 376:cb4d9db17537 | 256 | */ |
mbed_official | 376:cb4d9db17537 | 257 | HAL_StatusTypeDef HAL_UARTEx_DisableStopMode(UART_HandleTypeDef *huart) |
mbed_official | 376:cb4d9db17537 | 258 | { |
mbed_official | 376:cb4d9db17537 | 259 | /* Process Locked */ |
mbed_official | 376:cb4d9db17537 | 260 | __HAL_LOCK(huart); |
mbed_official | 376:cb4d9db17537 | 261 | |
mbed_official | 376:cb4d9db17537 | 262 | huart->State = HAL_UART_STATE_BUSY; |
mbed_official | 376:cb4d9db17537 | 263 | |
mbed_official | 376:cb4d9db17537 | 264 | /* Clear USART UESM bit */ |
mbed_official | 376:cb4d9db17537 | 265 | huart->Instance->CR1 &= ~(USART_CR1_UESM); |
mbed_official | 376:cb4d9db17537 | 266 | |
mbed_official | 376:cb4d9db17537 | 267 | huart->State = HAL_UART_STATE_READY; |
mbed_official | 376:cb4d9db17537 | 268 | |
mbed_official | 376:cb4d9db17537 | 269 | /* Process Unlocked */ |
mbed_official | 376:cb4d9db17537 | 270 | __HAL_UNLOCK(huart); |
mbed_official | 376:cb4d9db17537 | 271 | |
mbed_official | 376:cb4d9db17537 | 272 | return HAL_OK; |
mbed_official | 376:cb4d9db17537 | 273 | } |
mbed_official | 376:cb4d9db17537 | 274 | |
mbed_official | 376:cb4d9db17537 | 275 | /** |
mbed_official | 376:cb4d9db17537 | 276 | * @brief Disable UART Clock in Stop Mode |
mbed_official | 376:cb4d9db17537 | 277 | * @param huart: uart handle |
mbed_official | 376:cb4d9db17537 | 278 | * @retval HAL status |
mbed_official | 376:cb4d9db17537 | 279 | */ |
mbed_official | 376:cb4d9db17537 | 280 | HAL_StatusTypeDef HAL_UARTEx_DisableClockStopMode(UART_HandleTypeDef *huart) |
mbed_official | 376:cb4d9db17537 | 281 | { |
mbed_official | 376:cb4d9db17537 | 282 | /* Process Locked */ |
mbed_official | 376:cb4d9db17537 | 283 | __HAL_LOCK(huart); |
mbed_official | 376:cb4d9db17537 | 284 | |
mbed_official | 376:cb4d9db17537 | 285 | huart->State = HAL_UART_STATE_BUSY; |
mbed_official | 376:cb4d9db17537 | 286 | |
mbed_official | 376:cb4d9db17537 | 287 | /* Clear USART UESM bit */ |
mbed_official | 376:cb4d9db17537 | 288 | huart->Instance->CR3 &= ~(USART_CR3_UCESM); |
mbed_official | 376:cb4d9db17537 | 289 | |
mbed_official | 376:cb4d9db17537 | 290 | huart->State = HAL_UART_STATE_READY; |
mbed_official | 376:cb4d9db17537 | 291 | |
mbed_official | 376:cb4d9db17537 | 292 | /* Process Unlocked */ |
mbed_official | 376:cb4d9db17537 | 293 | __HAL_UNLOCK(huart); |
mbed_official | 376:cb4d9db17537 | 294 | |
mbed_official | 376:cb4d9db17537 | 295 | return HAL_OK; |
mbed_official | 376:cb4d9db17537 | 296 | } |
mbed_official | 376:cb4d9db17537 | 297 | |
mbed_official | 376:cb4d9db17537 | 298 | /** |
mbed_official | 376:cb4d9db17537 | 299 | * @brief Set Wakeup from Stop mode interrupt flag selection |
mbed_official | 376:cb4d9db17537 | 300 | * @param huart: uart handle, |
mbed_official | 376:cb4d9db17537 | 301 | * @param WakeUpSelection: address match, Start Bit detection or RXNE bit status. |
mbed_official | 376:cb4d9db17537 | 302 | * This parameter can be one of the following values: |
mbed_official | 376:cb4d9db17537 | 303 | * @arg UART_WAKEUP_ON_ADDRESS |
mbed_official | 376:cb4d9db17537 | 304 | * @arg UART_WAKEUP_ON_STARTBIT |
mbed_official | 376:cb4d9db17537 | 305 | * @arg UART_WAKEUP_ON_READDATA_NONEMPTY |
mbed_official | 376:cb4d9db17537 | 306 | * @retval HAL status |
mbed_official | 376:cb4d9db17537 | 307 | */ |
mbed_official | 376:cb4d9db17537 | 308 | HAL_StatusTypeDef HAL_UARTEx_StopModeWakeUpSourceConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection) |
mbed_official | 376:cb4d9db17537 | 309 | { |
mbed_official | 489:119543c9f674 | 310 | |
mbed_official | 489:119543c9f674 | 311 | /* check the wake-up from stop mode UART instance */ |
mbed_official | 489:119543c9f674 | 312 | assert_param(IS_UART_WAKEUP_FROMSTOP_INSTANCE(huart->Instance)); |
mbed_official | 376:cb4d9db17537 | 313 | /* Check the wake-up selection parameter */ |
mbed_official | 376:cb4d9db17537 | 314 | assert_param(IS_UART_WAKEUP_SELECTION(WakeUpSelection.WakeUpEvent)); |
mbed_official | 376:cb4d9db17537 | 315 | |
mbed_official | 376:cb4d9db17537 | 316 | /* Process Locked */ |
mbed_official | 376:cb4d9db17537 | 317 | __HAL_LOCK(huart); |
mbed_official | 376:cb4d9db17537 | 318 | |
mbed_official | 376:cb4d9db17537 | 319 | huart->State = HAL_UART_STATE_BUSY; |
mbed_official | 376:cb4d9db17537 | 320 | |
mbed_official | 376:cb4d9db17537 | 321 | /* Disable the Peripheral */ |
mbed_official | 376:cb4d9db17537 | 322 | __HAL_UART_DISABLE(huart); |
mbed_official | 376:cb4d9db17537 | 323 | |
mbed_official | 376:cb4d9db17537 | 324 | /* Set the wake-up selection scheme */ |
mbed_official | 376:cb4d9db17537 | 325 | MODIFY_REG(huart->Instance->CR3, USART_CR3_WUS, WakeUpSelection.WakeUpEvent); |
mbed_official | 376:cb4d9db17537 | 326 | |
mbed_official | 376:cb4d9db17537 | 327 | if(WakeUpSelection.WakeUpEvent == UART_WAKEUP_ON_ADDRESS) |
mbed_official | 376:cb4d9db17537 | 328 | { |
mbed_official | 376:cb4d9db17537 | 329 | UART_Wakeup_AddressConfig(huart, WakeUpSelection); |
mbed_official | 376:cb4d9db17537 | 330 | } |
mbed_official | 376:cb4d9db17537 | 331 | |
mbed_official | 376:cb4d9db17537 | 332 | /* Enable the Peripheral */ |
mbed_official | 376:cb4d9db17537 | 333 | __HAL_UART_ENABLE(huart); |
mbed_official | 376:cb4d9db17537 | 334 | |
mbed_official | 376:cb4d9db17537 | 335 | /* Wait until REACK flag is set before moving huart->State to Ready */ |
mbed_official | 376:cb4d9db17537 | 336 | if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_REACK, RESET, UART_REACK_TIMEOUT) != HAL_OK) |
mbed_official | 376:cb4d9db17537 | 337 | { |
mbed_official | 376:cb4d9db17537 | 338 | return HAL_TIMEOUT; |
mbed_official | 376:cb4d9db17537 | 339 | } |
mbed_official | 376:cb4d9db17537 | 340 | |
mbed_official | 376:cb4d9db17537 | 341 | /* Process Unlocked */ |
mbed_official | 376:cb4d9db17537 | 342 | __HAL_UNLOCK(huart); |
mbed_official | 376:cb4d9db17537 | 343 | |
mbed_official | 376:cb4d9db17537 | 344 | /* Initialize the UART state*/ |
mbed_official | 376:cb4d9db17537 | 345 | huart->ErrorCode = HAL_UART_ERROR_NONE; |
mbed_official | 376:cb4d9db17537 | 346 | huart->State= HAL_UART_STATE_READY; |
mbed_official | 376:cb4d9db17537 | 347 | |
mbed_official | 376:cb4d9db17537 | 348 | return HAL_OK; |
mbed_official | 376:cb4d9db17537 | 349 | } |
mbed_official | 376:cb4d9db17537 | 350 | /** |
mbed_official | 376:cb4d9db17537 | 351 | * @brief By default in multiprocessor mode, when the wake up method is set |
mbed_official | 376:cb4d9db17537 | 352 | * to address mark, the UART handles only 4-bit long addresses detection. |
mbed_official | 376:cb4d9db17537 | 353 | * This API allows to enable longer addresses detection (6-, 7- or 8-bit |
mbed_official | 376:cb4d9db17537 | 354 | * long): |
mbed_official | 376:cb4d9db17537 | 355 | * - 6-bit address detection in 7-bit data mode |
mbed_official | 376:cb4d9db17537 | 356 | * - 7-bit address detection in 8-bit data mode |
mbed_official | 376:cb4d9db17537 | 357 | * - 8-bit address detection in 9-bit data mode |
mbed_official | 376:cb4d9db17537 | 358 | * @param huart: UART handle |
mbed_official | 376:cb4d9db17537 | 359 | * @param AddressLength: this parameter can be one of the following values: |
mbed_official | 376:cb4d9db17537 | 360 | * @arg UART_ADDRESS_DETECT_4B: 4-bit long address |
mbed_official | 376:cb4d9db17537 | 361 | * @arg UART_ADDRESS_DETECT_7B: 6-, 7- or 8-bit long address |
mbed_official | 376:cb4d9db17537 | 362 | * @retval HAL status |
mbed_official | 376:cb4d9db17537 | 363 | */ |
mbed_official | 376:cb4d9db17537 | 364 | HAL_StatusTypeDef HAL_MultiProcessorEx_AddressLength_Set(UART_HandleTypeDef *huart, uint32_t AddressLength) |
mbed_official | 376:cb4d9db17537 | 365 | { |
mbed_official | 376:cb4d9db17537 | 366 | /* Check the UART handle allocation */ |
mbed_official | 489:119543c9f674 | 367 | if(huart == NULL) |
mbed_official | 376:cb4d9db17537 | 368 | { |
mbed_official | 376:cb4d9db17537 | 369 | return HAL_ERROR; |
mbed_official | 376:cb4d9db17537 | 370 | } |
mbed_official | 376:cb4d9db17537 | 371 | |
mbed_official | 376:cb4d9db17537 | 372 | /* Check the address length parameter */ |
mbed_official | 376:cb4d9db17537 | 373 | assert_param(IS_UART_ADDRESSLENGTH_DETECT(AddressLength)); |
mbed_official | 376:cb4d9db17537 | 374 | |
mbed_official | 376:cb4d9db17537 | 375 | huart->State = HAL_UART_STATE_BUSY; |
mbed_official | 376:cb4d9db17537 | 376 | |
mbed_official | 376:cb4d9db17537 | 377 | /* Disable the Peripheral */ |
mbed_official | 376:cb4d9db17537 | 378 | __HAL_UART_DISABLE(huart); |
mbed_official | 376:cb4d9db17537 | 379 | |
mbed_official | 376:cb4d9db17537 | 380 | /* Set the address length */ |
mbed_official | 376:cb4d9db17537 | 381 | MODIFY_REG(huart->Instance->CR2, USART_CR2_ADDM7, AddressLength); |
mbed_official | 376:cb4d9db17537 | 382 | |
mbed_official | 376:cb4d9db17537 | 383 | /* Enable the Peripheral */ |
mbed_official | 376:cb4d9db17537 | 384 | __HAL_UART_ENABLE(huart); |
mbed_official | 376:cb4d9db17537 | 385 | |
mbed_official | 376:cb4d9db17537 | 386 | /* TEACK and/or REACK to check before moving huart->State to Ready */ |
mbed_official | 376:cb4d9db17537 | 387 | return (UART_CheckIdleState(huart)); |
mbed_official | 376:cb4d9db17537 | 388 | } |
mbed_official | 376:cb4d9db17537 | 389 | |
mbed_official | 376:cb4d9db17537 | 390 | /** |
mbed_official | 376:cb4d9db17537 | 391 | * @} |
mbed_official | 376:cb4d9db17537 | 392 | */ |
mbed_official | 376:cb4d9db17537 | 393 | |
mbed_official | 376:cb4d9db17537 | 394 | /** |
mbed_official | 376:cb4d9db17537 | 395 | * @brief Initializes the UART wake-up from stop mode parameters when triggered by address detection. |
mbed_official | 376:cb4d9db17537 | 396 | * @param huart: uart handle |
mbed_official | 376:cb4d9db17537 | 397 | * @param WakeUpSelection: UART wake up from stop mode parameters |
mbed_official | 376:cb4d9db17537 | 398 | * @retval HAL status |
mbed_official | 376:cb4d9db17537 | 399 | */ |
mbed_official | 376:cb4d9db17537 | 400 | static void UART_Wakeup_AddressConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection) |
mbed_official | 376:cb4d9db17537 | 401 | { |
mbed_official | 376:cb4d9db17537 | 402 | assert_param(IS_UART_ADDRESSLENGTH_DETECT(WakeUpSelection.AddressLength)); |
mbed_official | 376:cb4d9db17537 | 403 | if(WakeUpSelection.AddressLength == UART_ADDRESS_DETECT_4B) |
mbed_official | 376:cb4d9db17537 | 404 | { |
mbed_official | 376:cb4d9db17537 | 405 | assert_param(IS_UART_4B_ADDRESS(WakeUpSelection.Address)); |
mbed_official | 376:cb4d9db17537 | 406 | } |
mbed_official | 376:cb4d9db17537 | 407 | else |
mbed_official | 376:cb4d9db17537 | 408 | { |
mbed_official | 376:cb4d9db17537 | 409 | assert_param(IS_UART_7B_ADDRESS(WakeUpSelection.Address)); |
mbed_official | 376:cb4d9db17537 | 410 | } |
mbed_official | 376:cb4d9db17537 | 411 | |
mbed_official | 376:cb4d9db17537 | 412 | /* Set the USART address length */ |
mbed_official | 376:cb4d9db17537 | 413 | MODIFY_REG(huart->Instance->CR2, USART_CR2_ADDM7, WakeUpSelection.AddressLength); |
mbed_official | 376:cb4d9db17537 | 414 | |
mbed_official | 376:cb4d9db17537 | 415 | /* Set the USART address node */ |
mbed_official | 376:cb4d9db17537 | 416 | MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, ((uint32_t)WakeUpSelection.Address << UART_CR2_ADDRESS_LSB_POS)); |
mbed_official | 376:cb4d9db17537 | 417 | } |
mbed_official | 376:cb4d9db17537 | 418 | |
mbed_official | 376:cb4d9db17537 | 419 | /** |
mbed_official | 489:119543c9f674 | 420 | * @brief UART wakeup from Stop mode callback |
mbed_official | 489:119543c9f674 | 421 | * @param huart: uart handle |
mbed_official | 489:119543c9f674 | 422 | * @retval None |
mbed_official | 489:119543c9f674 | 423 | */ |
mbed_official | 489:119543c9f674 | 424 | __weak void HAL_UARTEx_WakeupCallback(UART_HandleTypeDef *huart) |
mbed_official | 489:119543c9f674 | 425 | { |
mbed_official | 489:119543c9f674 | 426 | /* NOTE : This function should not be modified, when the callback is needed, |
mbed_official | 489:119543c9f674 | 427 | the HAL_UART_WakeupCallback can be implemented in the user file |
mbed_official | 489:119543c9f674 | 428 | */ |
mbed_official | 489:119543c9f674 | 429 | } |
mbed_official | 489:119543c9f674 | 430 | |
mbed_official | 489:119543c9f674 | 431 | /** |
mbed_official | 376:cb4d9db17537 | 432 | * @} |
mbed_official | 376:cb4d9db17537 | 433 | */ |
mbed_official | 376:cb4d9db17537 | 434 | |
mbed_official | 376:cb4d9db17537 | 435 | #endif /* HAL_UART_MODULE_ENABLED */ |
mbed_official | 376:cb4d9db17537 | 436 | /** |
mbed_official | 376:cb4d9db17537 | 437 | * @} |
mbed_official | 376:cb4d9db17537 | 438 | */ |
mbed_official | 376:cb4d9db17537 | 439 | |
mbed_official | 376:cb4d9db17537 | 440 | /** |
mbed_official | 376:cb4d9db17537 | 441 | * @} |
mbed_official | 376:cb4d9db17537 | 442 | */ |
mbed_official | 376:cb4d9db17537 | 443 | |
mbed_official | 376:cb4d9db17537 | 444 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
mbed_official | 489:119543c9f674 | 445 |