shao ziyang / mbed-src-kl05

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targets/cmsis/TARGET_STM/TARGET_NUCLEO_F401RE/stm32f4xx_hal_usart.c@323:9e901b0a5aa1, 2014-09-13 (annotated)

Committer:
shaoziyang
Date:
Sat Sep 13 14:25:46 2014 +0000
Revision:
323:9e901b0a5aa1
Parent:
226:b062af740e40 
test with CLOCK_SETUP = 0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 87:085cde657901 1 /**
mbed_official 87:085cde657901 2 ******************************************************************************
mbed_official 87:085cde657901 3 * @file stm32f4xx_hal_usart.c
mbed_official 87:085cde657901 4 * @author MCD Application Team
mbed_official 226:b062af740e40 5 * @version V1.1.0RC2
mbed_official 226:b062af740e40 6 * @date 14-May-2014
mbed_official 87:085cde657901 7 * @brief USART HAL module driver.
mbed_official 87:085cde657901 8 * This file provides firmware functions to manage the following
mbed_official 87:085cde657901 9 * functionalities of the Universal Synchronous Asynchronous Receiver Transmitter (USART) peripheral:
mbed_official 87:085cde657901 10 * + Initialization and de-initialization functions
mbed_official 87:085cde657901 11 * + IO operation functions
mbed_official 87:085cde657901 12 * + Peripheral Control functions
mbed_official 87:085cde657901 13 @verbatim
mbed_official 87:085cde657901 14 ==============================================================================
mbed_official 87:085cde657901 15 ##### How to use this driver #####
mbed_official 87:085cde657901 16 ==============================================================================
mbed_official 87:085cde657901 17 [..]
mbed_official 87:085cde657901 18 The USART HAL driver can be used as follows:
mbed_official 87:085cde657901 19
mbed_official 87:085cde657901 20 (#) Declare a USART_HandleTypeDef handle structure.
mbed_official 226:b062af740e40 21 (#) Initialize the USART low level resources by implementing the HAL_USART_MspInit () API:
mbed_official 87:085cde657901 22 (##) Enable the USARTx interface clock.
mbed_official 87:085cde657901 23 (##) USART pins configuration:
mbed_official 87:085cde657901 24 (+++) Enable the clock for the USART GPIOs.
mbed_official 87:085cde657901 25 (+++) Configure these USART pins as alternate function pull-up.
mbed_official 87:085cde657901 26 (##) NVIC configuration if you need to use interrupt process (HAL_USART_Transmit_IT(),
mbed_official 87:085cde657901 27 HAL_USART_Receive_IT() and HAL_USART_TransmitReceive_IT() APIs):
mbed_official 87:085cde657901 28 (+++) Configure the USARTx interrupt priority.
mbed_official 87:085cde657901 29 (+++) Enable the NVIC USART IRQ handle.
mbed_official 87:085cde657901 30 (##) DMA Configuration if you need to use DMA process (HAL_USART_Transmit_DMA()
mbed_official 87:085cde657901 31 HAL_USART_Receive_IT() and HAL_USART_TransmitReceive_IT() APIs):
mbed_official 87:085cde657901 32 (+++) Declare a DMA handle structure for the Tx/Rx stream.
mbed_official 87:085cde657901 33 (+++) Enable the DMAx interface clock.
mbed_official 87:085cde657901 34 (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
mbed_official 87:085cde657901 35 (+++) Configure the DMA Tx/Rx Stream.
mbed_official 87:085cde657901 36 (+++) Associate the initilalized DMA handle to the USART DMA Tx/Rx handle.
mbed_official 87:085cde657901 37 (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx/Rx Stream.
mbed_official 87:085cde657901 38
mbed_official 87:085cde657901 39 (#) Program the Baud Rate, Word Length, Stop Bit, Parity, Hardware
mbed_official 87:085cde657901 40 flow control and Mode(Receiver/Transmitter) in the husart Init structure.
mbed_official 87:085cde657901 41
mbed_official 87:085cde657901 42 (#) Initialize the USART registers by calling the HAL_USART_Init() API:
mbed_official 226:b062af740e40 43 (++) These APIs configures also the low level Hardware GPIO, CLOCK, CORTEX...etc)
mbed_official 87:085cde657901 44 by calling the customed HAL_USART_MspInit(&husart) API.
mbed_official 87:085cde657901 45
mbed_official 87:085cde657901 46 -@@- The specific USART interrupts (Transmission complete interrupt,
mbed_official 87:085cde657901 47 RXNE interrupt and Error Interrupts) will be managed using the macros
mbed_official 87:085cde657901 48 __USART_ENABLE_IT() and __USART_DISABLE_IT() inside the transmit and receive process.
mbed_official 87:085cde657901 49
mbed_official 226:b062af740e40 50 (#) Three operation modes are available within this driver :
mbed_official 87:085cde657901 51
mbed_official 87:085cde657901 52 *** Polling mode IO operation ***
mbed_official 87:085cde657901 53 =================================
mbed_official 87:085cde657901 54 [..]
mbed_official 87:085cde657901 55 (+) Send an amount of data in blocking mode using HAL_USART_Transmit()
mbed_official 87:085cde657901 56 (+) Receive an amount of data in blocking mode using HAL_USART_Receive()
mbed_official 87:085cde657901 57
mbed_official 87:085cde657901 58 *** Interrupt mode IO operation ***
mbed_official 87:085cde657901 59 ===================================
mbed_official 87:085cde657901 60 [..]
mbed_official 87:085cde657901 61 (+) Send an amount of data in non blocking mode using HAL_USART_Transmit_IT()
mbed_official 87:085cde657901 62 (+) At transmission end of half transfer HAL_USART_TxHalfCpltCallback is executed and user can
mbed_official 87:085cde657901 63 add his own code by customization of function pointer HAL_USART_TxHalfCpltCallback
mbed_official 87:085cde657901 64 (+) At transmission end of transfer HAL_USART_TxCpltCallback is executed and user can
mbed_official 87:085cde657901 65 add his own code by customization of function pointer HAL_USART_TxCpltCallback
mbed_official 87:085cde657901 66 (+) Receive an amount of data in non blocking mode using HAL_USART_Receive_IT()
mbed_official 87:085cde657901 67 (+) At reception end of half transfer HAL_USART_RxHalfCpltCallback is executed and user can
mbed_official 87:085cde657901 68 add his own code by customization of function pointer HAL_USART_RxHalfCpltCallback
mbed_official 87:085cde657901 69 (+) At reception end of transfer HAL_USART_RxCpltCallback is executed and user can
mbed_official 87:085cde657901 70 add his own code by customization of function pointer HAL_USART_RxCpltCallback
mbed_official 87:085cde657901 71 (+) In case of transfer Error, HAL_USART_ErrorCallback() function is executed and user can
mbed_official 87:085cde657901 72 add his own code by customization of function pointer HAL_USART_ErrorCallback
mbed_official 87:085cde657901 73
mbed_official 87:085cde657901 74 *** DMA mode IO operation ***
mbed_official 87:085cde657901 75 ==============================
mbed_official 87:085cde657901 76 [..]
mbed_official 87:085cde657901 77 (+) Send an amount of data in non blocking mode (DMA) using HAL_USART_Transmit_DMA()
mbed_official 87:085cde657901 78 (+) At transmission end of half transfer HAL_USART_TxHalfCpltCallback is executed and user can
mbed_official 87:085cde657901 79 add his own code by customization of function pointer HAL_USART_TxHalfCpltCallback
mbed_official 87:085cde657901 80 (+) At transmission end of transfer HAL_USART_TxCpltCallback is executed and user can
mbed_official 87:085cde657901 81 add his own code by customization of function pointer HAL_USART_TxCpltCallback
mbed_official 87:085cde657901 82 (+) Receive an amount of data in non blocking mode (DMA) using HAL_USART_Receive_DMA()
mbed_official 87:085cde657901 83 (+) At reception end of half transfer HAL_USART_RxHalfCpltCallback is executed and user can
mbed_official 87:085cde657901 84 add his own code by customization of function pointer HAL_USART_RxHalfCpltCallback
mbed_official 87:085cde657901 85 (+) At reception end of transfer HAL_USART_RxCpltCallback is executed and user can
mbed_official 87:085cde657901 86 add his own code by customization of function pointer HAL_USART_RxCpltCallback
mbed_official 87:085cde657901 87 (+) In case of transfer Error, HAL_USART_ErrorCallback() function is executed and user can
mbed_official 87:085cde657901 88 add his own code by customization of function pointer HAL_USART_ErrorCallback
mbed_official 87:085cde657901 89 (+) Pause the DMA Transfer using HAL_USART_DMAPause()
mbed_official 87:085cde657901 90 (+) Resume the DMA Transfer using HAL_USART_DMAResume()
mbed_official 87:085cde657901 91 (+) Stop the DMA Transfer using HAL_USART_DMAStop()
mbed_official 87:085cde657901 92
mbed_official 87:085cde657901 93 *** USART HAL driver macros list ***
mbed_official 87:085cde657901 94 =============================================
mbed_official 87:085cde657901 95 [..]
mbed_official 87:085cde657901 96 Below the list of most used macros in USART HAL driver.
mbed_official 87:085cde657901 97
mbed_official 87:085cde657901 98 (+) __HAL_USART_ENABLE: Enable the USART peripheral
mbed_official 87:085cde657901 99 (+) __HAL_USART_DISABLE: Disable the USART peripheral
mbed_official 226:b062af740e40 100 (+) __HAL_USART_GET_FLAG : Check whether the specified USART flag is set or not
mbed_official 226:b062af740e40 101 (+) __HAL_USART_CLEAR_FLAG : Clear the specified USART pending flag
mbed_official 226:b062af740e40 102 (+) __HAL_USART_ENABLE_IT: Enable the specified USART interrupt
mbed_official 226:b062af740e40 103 (+) __HAL_USART_DISABLE_IT: Disable the specified USART interrupt
mbed_official 87:085cde657901 104
mbed_official 87:085cde657901 105 [..]
mbed_official 87:085cde657901 106 (@) You can refer to the USART HAL driver header file for more useful macros
mbed_official 87:085cde657901 107
mbed_official 87:085cde657901 108 @endverbatim
mbed_official 87:085cde657901 109 ******************************************************************************
mbed_official 87:085cde657901 110 * @attention
mbed_official 87:085cde657901 111 *
mbed_official 87:085cde657901 112 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 87:085cde657901 113 *
mbed_official 87:085cde657901 114 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 87:085cde657901 115 * are permitted provided that the following conditions are met:
mbed_official 87:085cde657901 116 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 87:085cde657901 117 * this list of conditions and the following disclaimer.
mbed_official 87:085cde657901 118 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 87:085cde657901 119 * this list of conditions and the following disclaimer in the documentation
mbed_official 87:085cde657901 120 * and/or other materials provided with the distribution.
mbed_official 87:085cde657901 121 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 87:085cde657901 122 * may be used to endorse or promote products derived from this software
mbed_official 87:085cde657901 123 * without specific prior written permission.
mbed_official 87:085cde657901 124 *
mbed_official 87:085cde657901 125 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 87:085cde657901 126 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 87:085cde657901 127 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 87:085cde657901 128 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 87:085cde657901 129 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 87:085cde657901 130 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 87:085cde657901 131 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 87:085cde657901 132 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 87:085cde657901 133 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 87:085cde657901 134 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 87:085cde657901 135 *
mbed_official 87:085cde657901 136 ******************************************************************************
mbed_official 87:085cde657901 137 */
mbed_official 87:085cde657901 138
mbed_official 87:085cde657901 139 /* Includes ------------------------------------------------------------------*/
mbed_official 87:085cde657901 140 #include "stm32f4xx_hal.h"
mbed_official 87:085cde657901 141
mbed_official 87:085cde657901 142 /** @addtogroup STM32F4xx_HAL_Driver
mbed_official 87:085cde657901 143 * @{
mbed_official 87:085cde657901 144 */
mbed_official 87:085cde657901 145
mbed_official 87:085cde657901 146 /** @defgroup USART
mbed_official 87:085cde657901 147 * @brief HAL USART Synchronous module driver
mbed_official 87:085cde657901 148 * @{
mbed_official 87:085cde657901 149 */
mbed_official 87:085cde657901 150 #ifdef HAL_USART_MODULE_ENABLED
mbed_official 87:085cde657901 151 /* Private typedef -----------------------------------------------------------*/
mbed_official 87:085cde657901 152 /* Private define ------------------------------------------------------------*/
mbed_official 226:b062af740e40 153 #define DUMMY_DATA 0xFFFF
mbed_official 106:ced8cbb51063 154 #define USART_TIMEOUT_VALUE 22000
mbed_official 87:085cde657901 155 /* Private macro -------------------------------------------------------------*/
mbed_official 87:085cde657901 156 /* Private variables ---------------------------------------------------------*/
mbed_official 87:085cde657901 157 /* Private function prototypes -----------------------------------------------*/
mbed_official 87:085cde657901 158 static HAL_StatusTypeDef USART_Transmit_IT(USART_HandleTypeDef *husart);
mbed_official 87:085cde657901 159 static HAL_StatusTypeDef USART_Receive_IT(USART_HandleTypeDef *husart);
mbed_official 87:085cde657901 160 static HAL_StatusTypeDef USART_TransmitReceive_IT(USART_HandleTypeDef *husart);
mbed_official 87:085cde657901 161 static void USART_SetConfig (USART_HandleTypeDef *husart);
mbed_official 87:085cde657901 162 static void USART_DMATransmitCplt(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 163 static void USART_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 164 static void USART_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 165 static void USART_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 166 static void USART_DMAError(DMA_HandleTypeDef *hdma);
mbed_official 87:085cde657901 167 static HAL_StatusTypeDef USART_WaitOnFlagUntilTimeout(USART_HandleTypeDef *husart, uint32_t Flag, FlagStatus Status, uint32_t Timeout);
mbed_official 87:085cde657901 168 /* Private functions ---------------------------------------------------------*/
mbed_official 87:085cde657901 169
mbed_official 87:085cde657901 170
mbed_official 87:085cde657901 171 /** @defgroup USART_Private_Functions
mbed_official 87:085cde657901 172 * @{
mbed_official 87:085cde657901 173 */
mbed_official 87:085cde657901 174
mbed_official 87:085cde657901 175 /** @defgroup USART_Group1 USART Initialization and de-initialization functions
mbed_official 87:085cde657901 176 * @brief Initialization and Configuration functions
mbed_official 87:085cde657901 177 *
mbed_official 87:085cde657901 178 @verbatim
mbed_official 87:085cde657901 179 ==============================================================================
mbed_official 87:085cde657901 180 ##### Initialization and Configuration functions #####
mbed_official 87:085cde657901 181 ==============================================================================
mbed_official 87:085cde657901 182 [..]
mbed_official 87:085cde657901 183 This subsection provides a set of functions allowing to initialize the USART
mbed_official 87:085cde657901 184 in asynchronous and in synchronous modes.
mbed_official 87:085cde657901 185 (+) For the asynchronous mode only these parameters can be configured:
mbed_official 87:085cde657901 186 (++) Baud Rate
mbed_official 87:085cde657901 187 (++) Word Length
mbed_official 87:085cde657901 188 (++) Stop Bit
mbed_official 87:085cde657901 189 (++) Parity: If the parity is enabled, then the MSB bit of the data written
mbed_official 87:085cde657901 190 in the data register is transmitted but is changed by the parity bit.
mbed_official 87:085cde657901 191 Depending on the frame length defined by the M bit (8-bits or 9-bits),
mbed_official 226:b062af740e40 192 please refer to Reference manual for possible USART frame formats.
mbed_official 87:085cde657901 193 (++) USART polarity
mbed_official 87:085cde657901 194 (++) USART phase
mbed_official 87:085cde657901 195 (++) USART LastBit
mbed_official 87:085cde657901 196 (++) Receiver/transmitter modes
mbed_official 87:085cde657901 197
mbed_official 87:085cde657901 198 [..]
mbed_official 87:085cde657901 199 The HAL_USART_Init() function follows the USART synchronous configuration
mbed_official 87:085cde657901 200 procedure (details for the procedure are available in reference manual (RM0329)).
mbed_official 87:085cde657901 201
mbed_official 87:085cde657901 202 @endverbatim
mbed_official 87:085cde657901 203 * @{
mbed_official 87:085cde657901 204 */
mbed_official 87:085cde657901 205
mbed_official 87:085cde657901 206 /**
mbed_official 87:085cde657901 207 * @brief Initializes the USART mode according to the specified
mbed_official 87:085cde657901 208 * parameters in the USART_InitTypeDef and create the associated handle.
mbed_official 226:b062af740e40 209 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 210 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 211 * @retval HAL status
mbed_official 87:085cde657901 212 */
mbed_official 87:085cde657901 213 HAL_StatusTypeDef HAL_USART_Init(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 214 {
mbed_official 87:085cde657901 215 /* Check the USART handle allocation */
mbed_official 87:085cde657901 216 if(husart == NULL)
mbed_official 87:085cde657901 217 {
mbed_official 87:085cde657901 218 return HAL_ERROR;
mbed_official 87:085cde657901 219 }
mbed_official 87:085cde657901 220
mbed_official 87:085cde657901 221 /* Check the parameters */
mbed_official 87:085cde657901 222 assert_param(IS_USART_INSTANCE(husart->Instance));
mbed_official 87:085cde657901 223
mbed_official 87:085cde657901 224 if(husart->State == HAL_USART_STATE_RESET)
mbed_official 87:085cde657901 225 {
mbed_official 87:085cde657901 226 /* Init the low level hardware */
mbed_official 87:085cde657901 227 HAL_USART_MspInit(husart);
mbed_official 87:085cde657901 228 }
mbed_official 87:085cde657901 229
mbed_official 87:085cde657901 230 husart->State = HAL_USART_STATE_BUSY;
mbed_official 87:085cde657901 231
mbed_official 87:085cde657901 232 /* Set the USART Communication parameters */
mbed_official 87:085cde657901 233 USART_SetConfig(husart);
mbed_official 87:085cde657901 234
mbed_official 87:085cde657901 235 /* In USART mode, the following bits must be kept cleared:
mbed_official 87:085cde657901 236 - LINEN bit in the USART_CR2 register
mbed_official 87:085cde657901 237 - HDSEL, SCEN and IREN bits in the USART_CR3 register */
mbed_official 87:085cde657901 238 husart->Instance->CR2 &= ~USART_CR2_LINEN;
mbed_official 87:085cde657901 239 husart->Instance->CR3 &= ~(USART_CR3_IREN | USART_CR3_SCEN | USART_CR3_HDSEL);
mbed_official 87:085cde657901 240
mbed_official 87:085cde657901 241 /* Enable the Peripheral */
mbed_official 87:085cde657901 242 __USART_ENABLE(husart);
mbed_official 87:085cde657901 243
mbed_official 87:085cde657901 244 /* Initialize the USART state */
mbed_official 87:085cde657901 245 husart->ErrorCode = HAL_USART_ERROR_NONE;
mbed_official 87:085cde657901 246 husart->State= HAL_USART_STATE_READY;
mbed_official 87:085cde657901 247
mbed_official 87:085cde657901 248 return HAL_OK;
mbed_official 87:085cde657901 249 }
mbed_official 87:085cde657901 250
mbed_official 87:085cde657901 251 /**
mbed_official 87:085cde657901 252 * @brief DeInitializes the USART peripheral.
mbed_official 226:b062af740e40 253 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 254 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 255 * @retval HAL status
mbed_official 87:085cde657901 256 */
mbed_official 87:085cde657901 257 HAL_StatusTypeDef HAL_USART_DeInit(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 258 {
mbed_official 87:085cde657901 259 /* Check the USART handle allocation */
mbed_official 87:085cde657901 260 if(husart == NULL)
mbed_official 87:085cde657901 261 {
mbed_official 87:085cde657901 262 return HAL_ERROR;
mbed_official 87:085cde657901 263 }
mbed_official 87:085cde657901 264
mbed_official 87:085cde657901 265 /* Check the parameters */
mbed_official 87:085cde657901 266 assert_param(IS_USART_INSTANCE(husart->Instance));
mbed_official 87:085cde657901 267
mbed_official 87:085cde657901 268 husart->State = HAL_USART_STATE_BUSY;
mbed_official 87:085cde657901 269
mbed_official 87:085cde657901 270 /* DeInit the low level hardware */
mbed_official 87:085cde657901 271 HAL_USART_MspDeInit(husart);
mbed_official 87:085cde657901 272
mbed_official 87:085cde657901 273 husart->ErrorCode = HAL_USART_ERROR_NONE;
mbed_official 87:085cde657901 274 husart->State = HAL_USART_STATE_RESET;
mbed_official 106:ced8cbb51063 275
mbed_official 106:ced8cbb51063 276 /* Release Lock */
mbed_official 106:ced8cbb51063 277 __HAL_UNLOCK(husart);
mbed_official 106:ced8cbb51063 278
mbed_official 87:085cde657901 279 return HAL_OK;
mbed_official 87:085cde657901 280 }
mbed_official 87:085cde657901 281
mbed_official 87:085cde657901 282 /**
mbed_official 87:085cde657901 283 * @brief USART MSP Init.
mbed_official 226:b062af740e40 284 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 285 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 286 * @retval None
mbed_official 87:085cde657901 287 */
mbed_official 87:085cde657901 288 __weak void HAL_USART_MspInit(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 289 {
mbed_official 87:085cde657901 290 /* NOTE: This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 291 the HAL_USART_MspInit could be implenetd in the user file
mbed_official 87:085cde657901 292 */
mbed_official 87:085cde657901 293 }
mbed_official 87:085cde657901 294
mbed_official 87:085cde657901 295 /**
mbed_official 87:085cde657901 296 * @brief USART MSP DeInit.
mbed_official 226:b062af740e40 297 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 298 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 299 * @retval None
mbed_official 87:085cde657901 300 */
mbed_official 87:085cde657901 301 __weak void HAL_USART_MspDeInit(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 302 {
mbed_official 87:085cde657901 303 /* NOTE: This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 304 the HAL_USART_MspDeInit could be implenetd in the user file
mbed_official 87:085cde657901 305 */
mbed_official 87:085cde657901 306 }
mbed_official 87:085cde657901 307
mbed_official 87:085cde657901 308 /**
mbed_official 87:085cde657901 309 * @}
mbed_official 87:085cde657901 310 */
mbed_official 87:085cde657901 311
mbed_official 87:085cde657901 312 /** @defgroup USART_Group2 IO operation functions
mbed_official 87:085cde657901 313 * @brief USART Transmit and Receive functions
mbed_official 87:085cde657901 314 *
mbed_official 87:085cde657901 315 @verbatim
mbed_official 87:085cde657901 316 ==============================================================================
mbed_official 87:085cde657901 317 ##### IO operation functions #####
mbed_official 87:085cde657901 318 ==============================================================================
mbed_official 87:085cde657901 319 [..]
mbed_official 87:085cde657901 320 This subsection provides a set of functions allowing to manage the USART synchronous
mbed_official 87:085cde657901 321 data transfers.
mbed_official 87:085cde657901 322
mbed_official 87:085cde657901 323 [..]
mbed_official 87:085cde657901 324 The USART supports master mode only: it cannot receive or send data related to an input
mbed_official 87:085cde657901 325 clock (SCLK is always an output).
mbed_official 87:085cde657901 326
mbed_official 226:b062af740e40 327 (#) There are two modes of transfer:
mbed_official 87:085cde657901 328 (++) Blocking mode: The communication is performed in polling mode.
mbed_official 87:085cde657901 329 The HAL status of all data processing is returned by the same function
mbed_official 87:085cde657901 330 after finishing transfer.
mbed_official 87:085cde657901 331 (++) No-Blocking mode: The communication is performed using Interrupts
mbed_official 87:085cde657901 332 or DMA, These API's return the HAL status.
mbed_official 87:085cde657901 333 The end of the data processing will be indicated through the
mbed_official 87:085cde657901 334 dedicated USART IRQ when using Interrupt mode or the DMA IRQ when
mbed_official 87:085cde657901 335 using DMA mode.
mbed_official 87:085cde657901 336 The HAL_USART_TxCpltCallback(), HAL_USART_RxCpltCallback() and HAL_USART_TxRxCpltCallback()
mbed_official 226:b062af740e40 337 user callbacks
mbed_official 87:085cde657901 338 will be executed respectivelly at the end of the transmit or Receive process
mbed_official 226:b062af740e40 339 The HAL_USART_ErrorCallback() user callback will be executed when a communication
mbed_official 87:085cde657901 340 error is detected
mbed_official 87:085cde657901 341
mbed_official 226:b062af740e40 342 (#) Blocking mode APIs are :
mbed_official 226:b062af740e40 343 (++) HAL_USART_Transmit() in simplex mode
mbed_official 87:085cde657901 344 (++) HAL_USART_Receive() in full duplex receive only
mbed_official 87:085cde657901 345 (++) HAL_USART_TransmitReceive() in full duplex mode
mbed_official 87:085cde657901 346
mbed_official 226:b062af740e40 347 (#) Non Blocking mode APIs with Interrupt are :
mbed_official 87:085cde657901 348 (++) HAL_USART_Transmit_IT()in simplex mode
mbed_official 87:085cde657901 349 (++) HAL_USART_Receive_IT() in full duplex receive only
mbed_official 226:b062af740e40 350 (++) HAL_USART_TransmitReceive_IT() in full duplex mode
mbed_official 87:085cde657901 351 (++) HAL_USART_IRQHandler()
mbed_official 87:085cde657901 352
mbed_official 226:b062af740e40 353 (#) Non Blocking mode functions with DMA are :
mbed_official 87:085cde657901 354 (++) HAL_USART_Transmit_DMA()in simplex mode
mbed_official 87:085cde657901 355 (++) HAL_USART_Receive_DMA() in full duplex receive only
mbed_official 87:085cde657901 356 (++) HAL_USART_TransmitReceie_DMA() in full duplex mode
mbed_official 87:085cde657901 357
mbed_official 226:b062af740e40 358 (#) A set of Transfer Complete Callbacks are provided in non Blocking mode:
mbed_official 87:085cde657901 359 (++) HAL_USART_TxCpltCallback()
mbed_official 87:085cde657901 360 (++) HAL_USART_RxCpltCallback()
mbed_official 87:085cde657901 361 (++) HAL_USART_ErrorCallback()
mbed_official 87:085cde657901 362 (++) HAL_USART_TxRxCpltCallback()
mbed_official 87:085cde657901 363
mbed_official 87:085cde657901 364 @endverbatim
mbed_official 87:085cde657901 365 * @{
mbed_official 87:085cde657901 366 */
mbed_official 87:085cde657901 367
mbed_official 87:085cde657901 368 /**
mbed_official 87:085cde657901 369 * @brief Simplex Send an amount of data in blocking mode.
mbed_official 226:b062af740e40 370 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 371 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 372 * @param pTxData: Pointer to data buffer
mbed_official 87:085cde657901 373 * @param Size: Amount of data to be sent
mbed_official 226:b062af740e40 374 * @param Timeout: Timeout duration
mbed_official 87:085cde657901 375 * @retval HAL status
mbed_official 87:085cde657901 376 */
mbed_official 87:085cde657901 377 HAL_StatusTypeDef HAL_USART_Transmit(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size, uint32_t Timeout)
mbed_official 87:085cde657901 378 {
mbed_official 87:085cde657901 379 uint16_t* tmp;
mbed_official 87:085cde657901 380
mbed_official 87:085cde657901 381 if(husart->State == HAL_USART_STATE_READY)
mbed_official 87:085cde657901 382 {
mbed_official 87:085cde657901 383 if((pTxData == NULL) || (Size == 0))
mbed_official 87:085cde657901 384 {
mbed_official 87:085cde657901 385 return HAL_ERROR;
mbed_official 87:085cde657901 386 }
mbed_official 87:085cde657901 387
mbed_official 87:085cde657901 388 /* Process Locked */
mbed_official 87:085cde657901 389 __HAL_LOCK(husart);
mbed_official 87:085cde657901 390
mbed_official 87:085cde657901 391 husart->ErrorCode = HAL_USART_ERROR_NONE;
mbed_official 87:085cde657901 392 husart->State = HAL_USART_STATE_BUSY_TX;
mbed_official 87:085cde657901 393
mbed_official 87:085cde657901 394 husart->TxXferSize = Size;
mbed_official 87:085cde657901 395 husart->TxXferCount = Size;
mbed_official 87:085cde657901 396 while(husart->TxXferCount > 0)
mbed_official 87:085cde657901 397 {
mbed_official 87:085cde657901 398 husart->TxXferCount--;
mbed_official 87:085cde657901 399 if(husart->Init.WordLength == USART_WORDLENGTH_9B)
mbed_official 87:085cde657901 400 {
mbed_official 87:085cde657901 401 /* Wait for TC flag in order to write data in DR */
mbed_official 87:085cde657901 402 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK)
mbed_official 87:085cde657901 403 {
mbed_official 87:085cde657901 404 return HAL_TIMEOUT;
mbed_official 87:085cde657901 405 }
mbed_official 87:085cde657901 406 tmp = (uint16_t*) pTxData;
mbed_official 87:085cde657901 407 husart->Instance->DR = (*tmp & (uint16_t)0x01FF);
mbed_official 87:085cde657901 408 if(husart->Init.Parity == USART_PARITY_NONE)
mbed_official 87:085cde657901 409 {
mbed_official 87:085cde657901 410 pTxData += 2;
mbed_official 87:085cde657901 411 }
mbed_official 87:085cde657901 412 else
mbed_official 87:085cde657901 413 {
mbed_official 87:085cde657901 414 pTxData += 1;
mbed_official 87:085cde657901 415 }
mbed_official 87:085cde657901 416 }
mbed_official 87:085cde657901 417 else
mbed_official 87:085cde657901 418 {
mbed_official 87:085cde657901 419 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, Timeout) != HAL_OK)
mbed_official 87:085cde657901 420 {
mbed_official 87:085cde657901 421 return HAL_TIMEOUT;
mbed_official 87:085cde657901 422 }
mbed_official 87:085cde657901 423 husart->Instance->DR = (*pTxData++ & (uint8_t)0xFF);
mbed_official 87:085cde657901 424 }
mbed_official 87:085cde657901 425 }
mbed_official 87:085cde657901 426
mbed_official 87:085cde657901 427 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK)
mbed_official 87:085cde657901 428 {
mbed_official 87:085cde657901 429 return HAL_TIMEOUT;
mbed_official 87:085cde657901 430 }
mbed_official 87:085cde657901 431
mbed_official 87:085cde657901 432 husart->State = HAL_USART_STATE_READY;
mbed_official 87:085cde657901 433
mbed_official 87:085cde657901 434 /* Process Unlocked */
mbed_official 87:085cde657901 435 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 436
mbed_official 87:085cde657901 437 return HAL_OK;
mbed_official 87:085cde657901 438 }
mbed_official 87:085cde657901 439 else
mbed_official 87:085cde657901 440 {
mbed_official 87:085cde657901 441 return HAL_BUSY;
mbed_official 87:085cde657901 442 }
mbed_official 87:085cde657901 443 }
mbed_official 87:085cde657901 444
mbed_official 87:085cde657901 445 /**
mbed_official 87:085cde657901 446 * @brief Full-Duplex Receive an amount of data in blocking mode.
mbed_official 226:b062af740e40 447 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 448 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 449 * @param pRxData: Pointer to data buffer
mbed_official 87:085cde657901 450 * @param Size: Amount of data to be received
mbed_official 226:b062af740e40 451 * @param Timeout: Timeout duration
mbed_official 87:085cde657901 452 * @retval HAL status
mbed_official 87:085cde657901 453 */
mbed_official 87:085cde657901 454 HAL_StatusTypeDef HAL_USART_Receive(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size, uint32_t Timeout)
mbed_official 87:085cde657901 455 {
mbed_official 87:085cde657901 456 uint16_t* tmp;
mbed_official 87:085cde657901 457
mbed_official 87:085cde657901 458 if(husart->State == HAL_USART_STATE_READY)
mbed_official 87:085cde657901 459 {
mbed_official 87:085cde657901 460 if((pRxData == NULL) || (Size == 0))
mbed_official 87:085cde657901 461 {
mbed_official 87:085cde657901 462 return HAL_ERROR;
mbed_official 87:085cde657901 463 }
mbed_official 87:085cde657901 464 /* Process Locked */
mbed_official 87:085cde657901 465 __HAL_LOCK(husart);
mbed_official 87:085cde657901 466
mbed_official 87:085cde657901 467 husart->ErrorCode = HAL_USART_ERROR_NONE;
mbed_official 87:085cde657901 468 husart->State = HAL_USART_STATE_BUSY_RX;
mbed_official 87:085cde657901 469
mbed_official 87:085cde657901 470 husart->RxXferSize = Size;
mbed_official 87:085cde657901 471 husart->RxXferCount = Size;
mbed_official 87:085cde657901 472 /* Check the remain data to be received */
mbed_official 87:085cde657901 473 while(husart->RxXferCount > 0)
mbed_official 87:085cde657901 474 {
mbed_official 87:085cde657901 475 husart->RxXferCount--;
mbed_official 87:085cde657901 476 if(husart->Init.WordLength == USART_WORDLENGTH_9B)
mbed_official 87:085cde657901 477 {
mbed_official 87:085cde657901 478 /* Wait until TC flag is set to send dummy byte in order to generate the clock for the slave to send data */
mbed_official 87:085cde657901 479 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK)
mbed_official 87:085cde657901 480 {
mbed_official 87:085cde657901 481 return HAL_TIMEOUT;
mbed_official 87:085cde657901 482 }
mbed_official 87:085cde657901 483 /* Send dummy byte in order to generate clock */
mbed_official 226:b062af740e40 484 husart->Instance->DR = (DUMMY_DATA & (uint16_t)0x01FF);
mbed_official 87:085cde657901 485
mbed_official 87:085cde657901 486 /* Wait for RXNE Flag */
mbed_official 87:085cde657901 487 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
mbed_official 87:085cde657901 488 {
mbed_official 87:085cde657901 489 return HAL_TIMEOUT;
mbed_official 87:085cde657901 490 }
mbed_official 87:085cde657901 491 tmp = (uint16_t*) pRxData ;
mbed_official 87:085cde657901 492 if(husart->Init.Parity == USART_PARITY_NONE)
mbed_official 87:085cde657901 493 {
mbed_official 87:085cde657901 494 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x01FF);
mbed_official 87:085cde657901 495 pRxData +=2;
mbed_official 87:085cde657901 496 }
mbed_official 87:085cde657901 497 else
mbed_official 87:085cde657901 498 {
mbed_official 87:085cde657901 499 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x00FF);
mbed_official 87:085cde657901 500 pRxData +=1;
mbed_official 87:085cde657901 501 }
mbed_official 87:085cde657901 502 }
mbed_official 87:085cde657901 503 else
mbed_official 87:085cde657901 504 {
mbed_official 87:085cde657901 505 /* Wait until TC flag is set to send dummy byte in order to generate the clock for the slave to send data */
mbed_official 87:085cde657901 506 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK)
mbed_official 87:085cde657901 507 {
mbed_official 87:085cde657901 508 return HAL_TIMEOUT;
mbed_official 87:085cde657901 509 }
mbed_official 87:085cde657901 510
mbed_official 87:085cde657901 511 /* Send Dummy Byte in order to generate clock */
mbed_official 226:b062af740e40 512 husart->Instance->DR = (DUMMY_DATA & (uint16_t)0x00FF);
mbed_official 87:085cde657901 513
mbed_official 87:085cde657901 514 /* Wait until RXNE flag is set to receive the byte */
mbed_official 87:085cde657901 515 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
mbed_official 87:085cde657901 516 {
mbed_official 87:085cde657901 517 return HAL_TIMEOUT;
mbed_official 87:085cde657901 518 }
mbed_official 87:085cde657901 519 if(husart->Init.Parity == USART_PARITY_NONE)
mbed_official 87:085cde657901 520 {
mbed_official 87:085cde657901 521 /* Receive data */
mbed_official 87:085cde657901 522 *pRxData++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x00FF);
mbed_official 87:085cde657901 523 }
mbed_official 87:085cde657901 524 else
mbed_official 87:085cde657901 525 {
mbed_official 87:085cde657901 526 /* Receive data */
mbed_official 87:085cde657901 527 *pRxData++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x007F);
mbed_official 87:085cde657901 528 }
mbed_official 87:085cde657901 529
mbed_official 87:085cde657901 530 }
mbed_official 87:085cde657901 531 }
mbed_official 87:085cde657901 532
mbed_official 87:085cde657901 533 husart->State = HAL_USART_STATE_READY;
mbed_official 87:085cde657901 534
mbed_official 87:085cde657901 535 /* Process Unlocked */
mbed_official 87:085cde657901 536 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 537
mbed_official 87:085cde657901 538 return HAL_OK;
mbed_official 87:085cde657901 539 }
mbed_official 87:085cde657901 540 else
mbed_official 87:085cde657901 541 {
mbed_official 87:085cde657901 542 return HAL_BUSY;
mbed_official 87:085cde657901 543 }
mbed_official 87:085cde657901 544 }
mbed_official 87:085cde657901 545
mbed_official 87:085cde657901 546 /**
mbed_official 87:085cde657901 547 * @brief Full-Duplex Send receive an amount of data in full-duplex mode (blocking mode).
mbed_official 226:b062af740e40 548 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 549 * the configuration information for the specified USART module.
mbed_official 226:b062af740e40 550 * @param pTxData: Pointer to data transmitted buffer
mbed_official 226:b062af740e40 551 * @param pRxData: Pointer to data received buffer
mbed_official 87:085cde657901 552 * @param Size: Amount of data to be sent
mbed_official 226:b062af740e40 553 * @param Timeout: Timeout duration
mbed_official 87:085cde657901 554 * @retval HAL status
mbed_official 87:085cde657901 555 */
mbed_official 87:085cde657901 556 HAL_StatusTypeDef HAL_USART_TransmitReceive(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size, uint32_t Timeout)
mbed_official 87:085cde657901 557 {
mbed_official 87:085cde657901 558 uint16_t* tmp;
mbed_official 87:085cde657901 559
mbed_official 87:085cde657901 560 if(husart->State == HAL_USART_STATE_READY)
mbed_official 87:085cde657901 561 {
mbed_official 87:085cde657901 562 if((pTxData == NULL) || (pRxData == NULL) || (Size == 0))
mbed_official 87:085cde657901 563 {
mbed_official 87:085cde657901 564 return HAL_ERROR;
mbed_official 87:085cde657901 565 }
mbed_official 87:085cde657901 566 /* Process Locked */
mbed_official 87:085cde657901 567 __HAL_LOCK(husart);
mbed_official 87:085cde657901 568
mbed_official 87:085cde657901 569 husart->ErrorCode = HAL_USART_ERROR_NONE;
mbed_official 87:085cde657901 570 husart->State = HAL_USART_STATE_BUSY_RX;
mbed_official 87:085cde657901 571
mbed_official 87:085cde657901 572 husart->RxXferSize = Size;
mbed_official 87:085cde657901 573 husart->TxXferSize = Size;
mbed_official 87:085cde657901 574 husart->TxXferCount = Size;
mbed_official 87:085cde657901 575 husart->RxXferCount = Size;
mbed_official 87:085cde657901 576
mbed_official 87:085cde657901 577 /* Check the remain data to be received */
mbed_official 87:085cde657901 578 while(husart->TxXferCount > 0)
mbed_official 87:085cde657901 579 {
mbed_official 87:085cde657901 580 husart->TxXferCount--;
mbed_official 87:085cde657901 581 husart->RxXferCount--;
mbed_official 87:085cde657901 582 if(husart->Init.WordLength == USART_WORDLENGTH_9B)
mbed_official 87:085cde657901 583 {
mbed_official 87:085cde657901 584 /* Wait for TC flag in order to write data in DR */
mbed_official 87:085cde657901 585 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK)
mbed_official 87:085cde657901 586 {
mbed_official 87:085cde657901 587 return HAL_TIMEOUT;
mbed_official 87:085cde657901 588 }
mbed_official 87:085cde657901 589 tmp = (uint16_t*) pTxData;
mbed_official 87:085cde657901 590 husart->Instance->DR = (*tmp & (uint16_t)0x01FF);
mbed_official 87:085cde657901 591 if(husart->Init.Parity == USART_PARITY_NONE)
mbed_official 87:085cde657901 592 {
mbed_official 87:085cde657901 593 pTxData += 2;
mbed_official 87:085cde657901 594 }
mbed_official 87:085cde657901 595 else
mbed_official 87:085cde657901 596 {
mbed_official 87:085cde657901 597 pTxData += 1;
mbed_official 87:085cde657901 598 }
mbed_official 87:085cde657901 599
mbed_official 87:085cde657901 600 /* Wait for RXNE Flag */
mbed_official 87:085cde657901 601 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
mbed_official 87:085cde657901 602 {
mbed_official 87:085cde657901 603 return HAL_TIMEOUT;
mbed_official 87:085cde657901 604 }
mbed_official 87:085cde657901 605 tmp = (uint16_t*) pRxData ;
mbed_official 87:085cde657901 606 if(husart->Init.Parity == USART_PARITY_NONE)
mbed_official 87:085cde657901 607 {
mbed_official 87:085cde657901 608 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x01FF);
mbed_official 87:085cde657901 609 pRxData += 2;
mbed_official 87:085cde657901 610 }
mbed_official 87:085cde657901 611 else
mbed_official 87:085cde657901 612 {
mbed_official 87:085cde657901 613 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x00FF);
mbed_official 87:085cde657901 614 pRxData += 1;
mbed_official 87:085cde657901 615 }
mbed_official 87:085cde657901 616 }
mbed_official 87:085cde657901 617 else
mbed_official 87:085cde657901 618 {
mbed_official 87:085cde657901 619 /* Wait for TC flag in order to write data in DR */
mbed_official 87:085cde657901 620 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK)
mbed_official 87:085cde657901 621 {
mbed_official 87:085cde657901 622 return HAL_TIMEOUT;
mbed_official 87:085cde657901 623 }
mbed_official 87:085cde657901 624 husart->Instance->DR = (*pTxData++ & (uint8_t)0x00FF);
mbed_official 87:085cde657901 625
mbed_official 87:085cde657901 626 /* Wait for RXNE Flag */
mbed_official 87:085cde657901 627 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
mbed_official 87:085cde657901 628 {
mbed_official 87:085cde657901 629 return HAL_TIMEOUT;
mbed_official 87:085cde657901 630 }
mbed_official 87:085cde657901 631 if(husart->Init.Parity == USART_PARITY_NONE)
mbed_official 87:085cde657901 632 {
mbed_official 87:085cde657901 633 /* Receive data */
mbed_official 87:085cde657901 634 *pRxData++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x00FF);
mbed_official 87:085cde657901 635 }
mbed_official 87:085cde657901 636 else
mbed_official 87:085cde657901 637 {
mbed_official 87:085cde657901 638 /* Receive data */
mbed_official 87:085cde657901 639 *pRxData++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x007F);
mbed_official 87:085cde657901 640 }
mbed_official 87:085cde657901 641 }
mbed_official 87:085cde657901 642 }
mbed_official 87:085cde657901 643
mbed_official 87:085cde657901 644 husart->State = HAL_USART_STATE_READY;
mbed_official 87:085cde657901 645
mbed_official 87:085cde657901 646 /* Process Unlocked */
mbed_official 87:085cde657901 647 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 648
mbed_official 87:085cde657901 649 return HAL_OK;
mbed_official 87:085cde657901 650 }
mbed_official 87:085cde657901 651 else
mbed_official 87:085cde657901 652 {
mbed_official 87:085cde657901 653 return HAL_BUSY;
mbed_official 87:085cde657901 654 }
mbed_official 87:085cde657901 655 }
mbed_official 87:085cde657901 656
mbed_official 87:085cde657901 657 /**
mbed_official 87:085cde657901 658 * @brief Simplex Send an amount of data in non-blocking mode.
mbed_official 226:b062af740e40 659 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 660 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 661 * @param pTxData: Pointer to data buffer
mbed_official 87:085cde657901 662 * @param Size: Amount of data to be sent
mbed_official 87:085cde657901 663 * @retval HAL status
mbed_official 87:085cde657901 664 * @note The USART errors are not managed to avoid the overrun error.
mbed_official 87:085cde657901 665 */
mbed_official 87:085cde657901 666 HAL_StatusTypeDef HAL_USART_Transmit_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size)
mbed_official 87:085cde657901 667 {
mbed_official 87:085cde657901 668 if(husart->State == HAL_USART_STATE_READY)
mbed_official 87:085cde657901 669 {
mbed_official 87:085cde657901 670 if((pTxData == NULL) || (Size == 0))
mbed_official 87:085cde657901 671 {
mbed_official 87:085cde657901 672 return HAL_ERROR;
mbed_official 87:085cde657901 673 }
mbed_official 87:085cde657901 674
mbed_official 87:085cde657901 675 /* Process Locked */
mbed_official 87:085cde657901 676 __HAL_LOCK(husart);
mbed_official 87:085cde657901 677
mbed_official 87:085cde657901 678 husart->pTxBuffPtr = pTxData;
mbed_official 87:085cde657901 679 husart->TxXferSize = Size;
mbed_official 87:085cde657901 680 husart->TxXferCount = Size;
mbed_official 87:085cde657901 681
mbed_official 87:085cde657901 682 husart->ErrorCode = HAL_USART_ERROR_NONE;
mbed_official 87:085cde657901 683 husart->State = HAL_USART_STATE_BUSY_TX;
mbed_official 87:085cde657901 684
mbed_official 87:085cde657901 685 /* The USART Error Interrupts: (Frame error, Noise error, Overrun error)
mbed_official 87:085cde657901 686 are not managed by the USART transmit process to avoid the overrun interrupt
mbed_official 87:085cde657901 687 when the USART mode is configured for transmit and receive "USART_MODE_TX_RX"
mbed_official 87:085cde657901 688 to benefit for the frame error and noise interrupts the USART mode should be
mbed_official 87:085cde657901 689 configured only for transmit "USART_MODE_TX"
mbed_official 87:085cde657901 690 The __USART_ENABLE_IT(husart, USART_IT_ERR) can be used to enable the Frame error,
mbed_official 87:085cde657901 691 Noise error interrupt */
mbed_official 87:085cde657901 692
mbed_official 87:085cde657901 693 /* Process Unlocked */
mbed_official 87:085cde657901 694 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 695
mbed_official 87:085cde657901 696 /* Enable the USART Transmit Complete Interrupt */
mbed_official 87:085cde657901 697 __USART_ENABLE_IT(husart, USART_IT_TC);
mbed_official 87:085cde657901 698
mbed_official 87:085cde657901 699 return HAL_OK;
mbed_official 87:085cde657901 700 }
mbed_official 87:085cde657901 701 else
mbed_official 87:085cde657901 702 {
mbed_official 87:085cde657901 703 return HAL_BUSY;
mbed_official 87:085cde657901 704 }
mbed_official 87:085cde657901 705 }
mbed_official 87:085cde657901 706
mbed_official 87:085cde657901 707 /**
mbed_official 87:085cde657901 708 * @brief Simplex Receive an amount of data in non-blocking mode.
mbed_official 226:b062af740e40 709 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 710 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 711 * @param pRxData: Pointer to data buffer
mbed_official 87:085cde657901 712 * @param Size: Amount of data to be received
mbed_official 87:085cde657901 713 * @retval HAL status
mbed_official 87:085cde657901 714 */
mbed_official 87:085cde657901 715 HAL_StatusTypeDef HAL_USART_Receive_IT(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size)
mbed_official 87:085cde657901 716 {
mbed_official 87:085cde657901 717 if(husart->State == HAL_USART_STATE_READY)
mbed_official 87:085cde657901 718 {
mbed_official 87:085cde657901 719 if((pRxData == NULL) || (Size == 0))
mbed_official 87:085cde657901 720 {
mbed_official 87:085cde657901 721 return HAL_ERROR;
mbed_official 87:085cde657901 722 }
mbed_official 87:085cde657901 723 /* Process Locked */
mbed_official 87:085cde657901 724 __HAL_LOCK(husart);
mbed_official 87:085cde657901 725
mbed_official 87:085cde657901 726 husart->pRxBuffPtr = pRxData;
mbed_official 87:085cde657901 727 husart->RxXferSize = Size;
mbed_official 87:085cde657901 728 husart->RxXferCount = Size;
mbed_official 87:085cde657901 729
mbed_official 87:085cde657901 730 husart->ErrorCode = HAL_USART_ERROR_NONE;
mbed_official 87:085cde657901 731 husart->State = HAL_USART_STATE_BUSY_RX;
mbed_official 87:085cde657901 732
mbed_official 87:085cde657901 733 /* Enable the USART Data Register not empty Interrupt */
mbed_official 87:085cde657901 734 __USART_ENABLE_IT(husart, USART_IT_RXNE);
mbed_official 87:085cde657901 735
mbed_official 87:085cde657901 736 /* Enable the USART Parity Error Interrupt */
mbed_official 87:085cde657901 737 __USART_ENABLE_IT(husart, USART_IT_PE);
mbed_official 87:085cde657901 738
mbed_official 87:085cde657901 739 /* Enable the USART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official 87:085cde657901 740 __USART_ENABLE_IT(husart, USART_IT_ERR);
mbed_official 87:085cde657901 741
mbed_official 87:085cde657901 742 /* Process Unlocked */
mbed_official 87:085cde657901 743 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 744
mbed_official 87:085cde657901 745 /* Send dummy byte in order to generate the clock for the slave to send data */
mbed_official 226:b062af740e40 746 husart->Instance->DR = (DUMMY_DATA & (uint16_t)0x01FF);
mbed_official 87:085cde657901 747
mbed_official 87:085cde657901 748 return HAL_OK;
mbed_official 87:085cde657901 749 }
mbed_official 87:085cde657901 750 else
mbed_official 87:085cde657901 751 {
mbed_official 87:085cde657901 752 return HAL_BUSY;
mbed_official 87:085cde657901 753 }
mbed_official 87:085cde657901 754 }
mbed_official 87:085cde657901 755
mbed_official 87:085cde657901 756 /**
mbed_official 87:085cde657901 757 * @brief Full-Duplex Send receive an amount of data in full-duplex mode (non-blocking).
mbed_official 226:b062af740e40 758 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 759 * the configuration information for the specified USART module.
mbed_official 226:b062af740e40 760 * @param pTxData: Pointer to data transmitted buffer
mbed_official 226:b062af740e40 761 * @param pRxData: Pointer to data received buffer
mbed_official 87:085cde657901 762 * @param Size: Amount of data to be received
mbed_official 87:085cde657901 763 * @retval HAL status
mbed_official 87:085cde657901 764 */
mbed_official 87:085cde657901 765 HAL_StatusTypeDef HAL_USART_TransmitReceive_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size)
mbed_official 87:085cde657901 766 {
mbed_official 87:085cde657901 767 if(husart->State == HAL_USART_STATE_READY)
mbed_official 87:085cde657901 768 {
mbed_official 87:085cde657901 769 if((pTxData == NULL) || (pRxData == NULL) || (Size == 0))
mbed_official 87:085cde657901 770 {
mbed_official 87:085cde657901 771 return HAL_ERROR;
mbed_official 87:085cde657901 772 }
mbed_official 87:085cde657901 773 /* Process Locked */
mbed_official 87:085cde657901 774 __HAL_LOCK(husart);
mbed_official 87:085cde657901 775
mbed_official 87:085cde657901 776 husart->pRxBuffPtr = pRxData;
mbed_official 87:085cde657901 777 husart->RxXferSize = Size;
mbed_official 87:085cde657901 778 husart->RxXferCount = Size;
mbed_official 87:085cde657901 779 husart->pTxBuffPtr = pTxData;
mbed_official 87:085cde657901 780 husart->TxXferSize = Size;
mbed_official 87:085cde657901 781 husart->TxXferCount = Size;
mbed_official 87:085cde657901 782
mbed_official 87:085cde657901 783 husart->ErrorCode = HAL_USART_ERROR_NONE;
mbed_official 87:085cde657901 784 husart->State = HAL_USART_STATE_BUSY_TX_RX;
mbed_official 87:085cde657901 785
mbed_official 87:085cde657901 786 /* Enable the USART Data Register not empty Interrupt */
mbed_official 87:085cde657901 787 __USART_ENABLE_IT(husart, USART_IT_RXNE);
mbed_official 87:085cde657901 788
mbed_official 87:085cde657901 789 /* Enable the USART Parity Error Interrupt */
mbed_official 87:085cde657901 790 __USART_ENABLE_IT(husart, USART_IT_PE);
mbed_official 87:085cde657901 791
mbed_official 87:085cde657901 792 /* Enable the USART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official 87:085cde657901 793 __USART_ENABLE_IT(husart, USART_IT_ERR);
mbed_official 87:085cde657901 794
mbed_official 87:085cde657901 795 /* Process Unlocked */
mbed_official 87:085cde657901 796 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 797
mbed_official 87:085cde657901 798 /* Enable the USART Transmit Complete Interrupt */
mbed_official 87:085cde657901 799 __USART_ENABLE_IT(husart, USART_IT_TC);
mbed_official 87:085cde657901 800
mbed_official 87:085cde657901 801 return HAL_OK;
mbed_official 87:085cde657901 802 }
mbed_official 87:085cde657901 803 else
mbed_official 87:085cde657901 804 {
mbed_official 87:085cde657901 805 return HAL_BUSY;
mbed_official 87:085cde657901 806 }
mbed_official 87:085cde657901 807 }
mbed_official 87:085cde657901 808
mbed_official 87:085cde657901 809 /**
mbed_official 87:085cde657901 810 * @brief Simplex Send an amount of data in non-blocking mode.
mbed_official 226:b062af740e40 811 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 812 * the configuration information for the specified USART module.
mbed_official 226:b062af740e40 813 * @param pTxData: Pointer to data buffer
mbed_official 87:085cde657901 814 * @param Size: Amount of data to be sent
mbed_official 87:085cde657901 815 * @retval HAL status
mbed_official 87:085cde657901 816 */
mbed_official 87:085cde657901 817 HAL_StatusTypeDef HAL_USART_Transmit_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size)
mbed_official 87:085cde657901 818 {
mbed_official 87:085cde657901 819 uint32_t *tmp;
mbed_official 87:085cde657901 820
mbed_official 87:085cde657901 821 if(husart->State == HAL_USART_STATE_READY)
mbed_official 87:085cde657901 822 {
mbed_official 87:085cde657901 823 if((pTxData == NULL) || (Size == 0))
mbed_official 87:085cde657901 824 {
mbed_official 87:085cde657901 825 return HAL_ERROR;
mbed_official 87:085cde657901 826 }
mbed_official 87:085cde657901 827 /* Process Locked */
mbed_official 87:085cde657901 828 __HAL_LOCK(husart);
mbed_official 87:085cde657901 829
mbed_official 87:085cde657901 830 husart->pTxBuffPtr = pTxData;
mbed_official 87:085cde657901 831 husart->TxXferSize = Size;
mbed_official 87:085cde657901 832 husart->TxXferCount = Size;
mbed_official 87:085cde657901 833
mbed_official 87:085cde657901 834 husart->ErrorCode = HAL_USART_ERROR_NONE;
mbed_official 87:085cde657901 835 husart->State = HAL_USART_STATE_BUSY_TX;
mbed_official 87:085cde657901 836
mbed_official 87:085cde657901 837 /* Set the USART DMA transfer complete callback */
mbed_official 87:085cde657901 838 husart->hdmatx->XferCpltCallback = USART_DMATransmitCplt;
mbed_official 87:085cde657901 839
mbed_official 87:085cde657901 840 /* Set the USART DMA Half transfer complete callback */
mbed_official 87:085cde657901 841 husart->hdmatx->XferHalfCpltCallback = USART_DMATxHalfCplt;
mbed_official 87:085cde657901 842
mbed_official 87:085cde657901 843 /* Set the DMA error callback */
mbed_official 87:085cde657901 844 husart->hdmatx->XferErrorCallback = USART_DMAError;
mbed_official 87:085cde657901 845
mbed_official 87:085cde657901 846 /* Enable the USART transmit DMA Stream */
mbed_official 87:085cde657901 847 tmp = (uint32_t*)&pTxData;
mbed_official 87:085cde657901 848 HAL_DMA_Start_IT(husart->hdmatx, *(uint32_t*)tmp, (uint32_t)&husart->Instance->DR, Size);
mbed_official 87:085cde657901 849
mbed_official 87:085cde657901 850 /* Enable the DMA transfer for transmit request by setting the DMAT bit
mbed_official 87:085cde657901 851 in the USART CR3 register */
mbed_official 87:085cde657901 852 husart->Instance->CR3 |= USART_CR3_DMAT;
mbed_official 87:085cde657901 853
mbed_official 87:085cde657901 854 /* Process Unlocked */
mbed_official 87:085cde657901 855 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 856
mbed_official 87:085cde657901 857 return HAL_OK;
mbed_official 87:085cde657901 858 }
mbed_official 87:085cde657901 859 else
mbed_official 87:085cde657901 860 {
mbed_official 87:085cde657901 861 return HAL_BUSY;
mbed_official 87:085cde657901 862 }
mbed_official 87:085cde657901 863 }
mbed_official 87:085cde657901 864
mbed_official 87:085cde657901 865 /**
mbed_official 87:085cde657901 866 * @brief Full-Duplex Receive an amount of data in non-blocking mode.
mbed_official 226:b062af740e40 867 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 868 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 869 * @param pRxData: Pointer to data buffer
mbed_official 87:085cde657901 870 * @param Size: Amount of data to be received
mbed_official 87:085cde657901 871 * @retval HAL status
mbed_official 87:085cde657901 872 * @note The USART DMA transmit stream must be configured in order to generate the clock for the slave.
mbed_official 87:085cde657901 873 * @note When the USART parity is enabled (PCE = 1) the data received contain the parity bit.
mbed_official 87:085cde657901 874 */
mbed_official 87:085cde657901 875 HAL_StatusTypeDef HAL_USART_Receive_DMA(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size)
mbed_official 87:085cde657901 876 {
mbed_official 87:085cde657901 877 uint32_t *tmp;
mbed_official 87:085cde657901 878
mbed_official 87:085cde657901 879 if(husart->State == HAL_USART_STATE_READY)
mbed_official 87:085cde657901 880 {
mbed_official 87:085cde657901 881 if((pRxData == NULL) || (Size == 0))
mbed_official 87:085cde657901 882 {
mbed_official 87:085cde657901 883 return HAL_ERROR;
mbed_official 87:085cde657901 884 }
mbed_official 87:085cde657901 885
mbed_official 87:085cde657901 886 /* Process Locked */
mbed_official 87:085cde657901 887 __HAL_LOCK(husart);
mbed_official 87:085cde657901 888
mbed_official 87:085cde657901 889 husart->pRxBuffPtr = pRxData;
mbed_official 87:085cde657901 890 husart->RxXferSize = Size;
mbed_official 87:085cde657901 891 husart->pTxBuffPtr = pRxData;
mbed_official 87:085cde657901 892 husart->TxXferSize = Size;
mbed_official 87:085cde657901 893
mbed_official 87:085cde657901 894 husart->ErrorCode = HAL_USART_ERROR_NONE;
mbed_official 87:085cde657901 895 husart->State = HAL_USART_STATE_BUSY_RX;
mbed_official 87:085cde657901 896
mbed_official 87:085cde657901 897 /* Set the USART DMA Rx transfer complete callback */
mbed_official 87:085cde657901 898 husart->hdmarx->XferCpltCallback = USART_DMAReceiveCplt;
mbed_official 87:085cde657901 899
mbed_official 87:085cde657901 900 /* Set the USART DMA Half transfer complete callback */
mbed_official 87:085cde657901 901 husart->hdmarx->XferHalfCpltCallback = USART_DMARxHalfCplt;
mbed_official 87:085cde657901 902
mbed_official 87:085cde657901 903 /* Set the USART DMA Rx transfer error callback */
mbed_official 87:085cde657901 904 husart->hdmarx->XferErrorCallback = USART_DMAError;
mbed_official 87:085cde657901 905
mbed_official 87:085cde657901 906 /* Enable the USART receive DMA Stream */
mbed_official 87:085cde657901 907 tmp = (uint32_t*)&pRxData;
mbed_official 87:085cde657901 908 HAL_DMA_Start_IT(husart->hdmarx, (uint32_t)&husart->Instance->DR, *(uint32_t*)tmp, Size);
mbed_official 87:085cde657901 909
mbed_official 87:085cde657901 910 /* Enable the USART transmit DMA Stream: the transmit stream is used in order
mbed_official 87:085cde657901 911 to generate in the non-blocking mode the clock to the slave device,
mbed_official 87:085cde657901 912 this mode isn't a simplex receive mode but a full-duplex receive one */
mbed_official 87:085cde657901 913 HAL_DMA_Start_IT(husart->hdmatx, *(uint32_t*)tmp, (uint32_t)&husart->Instance->DR, Size);
mbed_official 87:085cde657901 914
mbed_official 87:085cde657901 915 /* Enable the DMA transfer for the receiver request by setting the DMAR bit
mbed_official 87:085cde657901 916 in the USART CR3 register */
mbed_official 87:085cde657901 917 husart->Instance->CR3 |= USART_CR3_DMAR;
mbed_official 87:085cde657901 918
mbed_official 87:085cde657901 919 /* Enable the DMA transfer for transmit request by setting the DMAT bit
mbed_official 87:085cde657901 920 in the USART CR3 register */
mbed_official 87:085cde657901 921 husart->Instance->CR3 |= USART_CR3_DMAT;
mbed_official 87:085cde657901 922
mbed_official 87:085cde657901 923 /* Process Unlocked */
mbed_official 87:085cde657901 924 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 925
mbed_official 87:085cde657901 926 return HAL_OK;
mbed_official 87:085cde657901 927 }
mbed_official 87:085cde657901 928 else
mbed_official 87:085cde657901 929 {
mbed_official 87:085cde657901 930 return HAL_BUSY;
mbed_official 87:085cde657901 931 }
mbed_official 87:085cde657901 932 }
mbed_official 87:085cde657901 933
mbed_official 87:085cde657901 934 /**
mbed_official 87:085cde657901 935 * @brief Full-Duplex Transmit Receive an amount of data in non-blocking mode.
mbed_official 226:b062af740e40 936 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 937 * the configuration information for the specified USART module.
mbed_official 226:b062af740e40 938 * @param pTxData: Pointer to data transmitted buffer
mbed_official 226:b062af740e40 939 * @param pRxData: Pointer to data received buffer
mbed_official 87:085cde657901 940 * @param Size: Amount of data to be received
mbed_official 87:085cde657901 941 * @note When the USART parity is enabled (PCE = 1) the data received contain the parity bit.
mbed_official 87:085cde657901 942 * @retval HAL status
mbed_official 87:085cde657901 943 */
mbed_official 87:085cde657901 944 HAL_StatusTypeDef HAL_USART_TransmitReceive_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size)
mbed_official 87:085cde657901 945 {
mbed_official 87:085cde657901 946 uint32_t *tmp;
mbed_official 87:085cde657901 947
mbed_official 87:085cde657901 948 if(husart->State == HAL_USART_STATE_READY)
mbed_official 87:085cde657901 949 {
mbed_official 87:085cde657901 950 if((pTxData == NULL) || (pRxData == NULL) || (Size == 0))
mbed_official 87:085cde657901 951 {
mbed_official 87:085cde657901 952 return HAL_ERROR;
mbed_official 87:085cde657901 953 }
mbed_official 87:085cde657901 954 /* Process Locked */
mbed_official 87:085cde657901 955 __HAL_LOCK(husart);
mbed_official 87:085cde657901 956
mbed_official 87:085cde657901 957 husart->pRxBuffPtr = pRxData;
mbed_official 87:085cde657901 958 husart->RxXferSize = Size;
mbed_official 87:085cde657901 959 husart->pTxBuffPtr = pTxData;
mbed_official 87:085cde657901 960 husart->TxXferSize = Size;
mbed_official 87:085cde657901 961
mbed_official 87:085cde657901 962 husart->ErrorCode = HAL_USART_ERROR_NONE;
mbed_official 87:085cde657901 963 husart->State = HAL_USART_STATE_BUSY_TX_RX;
mbed_official 87:085cde657901 964
mbed_official 87:085cde657901 965 /* Set the USART DMA Rx transfer complete callback */
mbed_official 87:085cde657901 966 husart->hdmarx->XferCpltCallback = USART_DMAReceiveCplt;
mbed_official 87:085cde657901 967
mbed_official 87:085cde657901 968 /* Set the USART DMA Half transfer complete callback */
mbed_official 87:085cde657901 969 husart->hdmarx->XferHalfCpltCallback = USART_DMARxHalfCplt;
mbed_official 87:085cde657901 970
mbed_official 87:085cde657901 971 /* Set the USART DMA Tx transfer complete callback */
mbed_official 87:085cde657901 972 husart->hdmatx->XferCpltCallback = USART_DMATransmitCplt;
mbed_official 87:085cde657901 973
mbed_official 87:085cde657901 974 /* Set the USART DMA Half transfer complete callback */
mbed_official 87:085cde657901 975 husart->hdmatx->XferHalfCpltCallback = USART_DMATxHalfCplt;
mbed_official 87:085cde657901 976
mbed_official 87:085cde657901 977 /* Set the USART DMA Tx transfer error callback */
mbed_official 87:085cde657901 978 husart->hdmatx->XferErrorCallback = USART_DMAError;
mbed_official 87:085cde657901 979
mbed_official 87:085cde657901 980 /* Set the USART DMA Rx transfer error callback */
mbed_official 87:085cde657901 981 husart->hdmarx->XferErrorCallback = USART_DMAError;
mbed_official 87:085cde657901 982
mbed_official 87:085cde657901 983 /* Enable the USART receive DMA Stream */
mbed_official 87:085cde657901 984 tmp = (uint32_t*)&pRxData;
mbed_official 87:085cde657901 985 HAL_DMA_Start_IT(husart->hdmarx, (uint32_t)&husart->Instance->DR, *(uint32_t*)tmp, Size);
mbed_official 87:085cde657901 986
mbed_official 87:085cde657901 987 /* Enable the USART transmit DMA Stream */
mbed_official 87:085cde657901 988 tmp = (uint32_t*)&pTxData;
mbed_official 87:085cde657901 989 HAL_DMA_Start_IT(husart->hdmatx, *(uint32_t*)tmp, (uint32_t)&husart->Instance->DR, Size);
mbed_official 87:085cde657901 990
mbed_official 87:085cde657901 991 /* Enable the DMA transfer for the receiver request by setting the DMAR bit
mbed_official 87:085cde657901 992 in the USART CR3 register */
mbed_official 87:085cde657901 993 husart->Instance->CR3 |= USART_CR3_DMAR;
mbed_official 87:085cde657901 994
mbed_official 87:085cde657901 995 /* Enable the DMA transfer for transmit request by setting the DMAT bit
mbed_official 87:085cde657901 996 in the USART CR3 register */
mbed_official 87:085cde657901 997 husart->Instance->CR3 |= USART_CR3_DMAT;
mbed_official 87:085cde657901 998
mbed_official 87:085cde657901 999 /* Process Unlocked */
mbed_official 87:085cde657901 1000 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 1001
mbed_official 87:085cde657901 1002 return HAL_OK;
mbed_official 87:085cde657901 1003 }
mbed_official 87:085cde657901 1004 else
mbed_official 87:085cde657901 1005 {
mbed_official 87:085cde657901 1006 return HAL_BUSY;
mbed_official 87:085cde657901 1007 }
mbed_official 87:085cde657901 1008 }
mbed_official 87:085cde657901 1009
mbed_official 87:085cde657901 1010 /**
mbed_official 87:085cde657901 1011 * @brief Pauses the DMA Transfer.
mbed_official 226:b062af740e40 1012 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1013 * the configuration information for the specified USART module.
mbed_official 226:b062af740e40 1014 * @retval HAL status
mbed_official 87:085cde657901 1015 */
mbed_official 87:085cde657901 1016 HAL_StatusTypeDef HAL_USART_DMAPause(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1017 {
mbed_official 87:085cde657901 1018 /* Process Locked */
mbed_official 87:085cde657901 1019 __HAL_LOCK(husart);
mbed_official 87:085cde657901 1020
mbed_official 87:085cde657901 1021 if(husart->State == HAL_USART_STATE_BUSY_TX)
mbed_official 87:085cde657901 1022 {
mbed_official 87:085cde657901 1023 /* Disable the USART DMA Tx request */
mbed_official 87:085cde657901 1024 husart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
mbed_official 87:085cde657901 1025 }
mbed_official 87:085cde657901 1026 else if(husart->State == HAL_USART_STATE_BUSY_RX)
mbed_official 87:085cde657901 1027 {
mbed_official 87:085cde657901 1028 /* Disable the USART DMA Rx request */
mbed_official 87:085cde657901 1029 husart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
mbed_official 87:085cde657901 1030 }
mbed_official 87:085cde657901 1031 else if(husart->State == HAL_USART_STATE_BUSY_TX_RX)
mbed_official 87:085cde657901 1032 {
mbed_official 87:085cde657901 1033 /* Disable the USART DMA Tx request */
mbed_official 87:085cde657901 1034 husart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
mbed_official 87:085cde657901 1035 /* Disable the USART DMA Rx request */
mbed_official 87:085cde657901 1036 husart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
mbed_official 87:085cde657901 1037 }
mbed_official 87:085cde657901 1038
mbed_official 87:085cde657901 1039 /* Process Unlocked */
mbed_official 87:085cde657901 1040 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 1041
mbed_official 87:085cde657901 1042 return HAL_OK;
mbed_official 87:085cde657901 1043 }
mbed_official 87:085cde657901 1044
mbed_official 87:085cde657901 1045 /**
mbed_official 87:085cde657901 1046 * @brief Resumes the DMA Transfer.
mbed_official 226:b062af740e40 1047 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1048 * the configuration information for the specified USART module.
mbed_official 226:b062af740e40 1049 * @retval HAL status
mbed_official 87:085cde657901 1050 */
mbed_official 87:085cde657901 1051 HAL_StatusTypeDef HAL_USART_DMAResume(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1052 {
mbed_official 87:085cde657901 1053 /* Process Locked */
mbed_official 87:085cde657901 1054 __HAL_LOCK(husart);
mbed_official 87:085cde657901 1055
mbed_official 87:085cde657901 1056 if(husart->State == HAL_USART_STATE_BUSY_TX)
mbed_official 87:085cde657901 1057 {
mbed_official 87:085cde657901 1058 /* Enable the USART DMA Tx request */
mbed_official 87:085cde657901 1059 husart->Instance->CR3 |= USART_CR3_DMAT;
mbed_official 87:085cde657901 1060 }
mbed_official 87:085cde657901 1061 else if(husart->State == HAL_USART_STATE_BUSY_RX)
mbed_official 87:085cde657901 1062 {
mbed_official 87:085cde657901 1063 /* Enable the USART DMA Rx request */
mbed_official 87:085cde657901 1064 husart->Instance->CR3 |= USART_CR3_DMAR;
mbed_official 87:085cde657901 1065 }
mbed_official 87:085cde657901 1066 else if(husart->State == HAL_USART_STATE_BUSY_TX_RX)
mbed_official 87:085cde657901 1067 {
mbed_official 87:085cde657901 1068 /* Enable the USART DMA Rx request before the DMA Tx request */
mbed_official 87:085cde657901 1069 husart->Instance->CR3 |= USART_CR3_DMAR;
mbed_official 87:085cde657901 1070 /* Enable the USART DMA Tx request */
mbed_official 87:085cde657901 1071 husart->Instance->CR3 |= USART_CR3_DMAT;
mbed_official 87:085cde657901 1072 }
mbed_official 87:085cde657901 1073
mbed_official 87:085cde657901 1074 /* If the USART peripheral is still not enabled, enable it */
mbed_official 87:085cde657901 1075 if ((husart->Instance->CR1 & USART_CR1_UE) == 0)
mbed_official 87:085cde657901 1076 {
mbed_official 87:085cde657901 1077 /* Enable USART peripheral */
mbed_official 87:085cde657901 1078 __USART_ENABLE(husart);
mbed_official 87:085cde657901 1079 }
mbed_official 87:085cde657901 1080
mbed_official 87:085cde657901 1081 /* Process Unlocked */
mbed_official 87:085cde657901 1082 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 1083
mbed_official 87:085cde657901 1084 return HAL_OK;
mbed_official 87:085cde657901 1085 }
mbed_official 87:085cde657901 1086
mbed_official 87:085cde657901 1087 /**
mbed_official 87:085cde657901 1088 * @brief Stops the DMA Transfer.
mbed_official 226:b062af740e40 1089 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1090 * the configuration information for the specified USART module.
mbed_official 226:b062af740e40 1091 * @retval HAL status
mbed_official 87:085cde657901 1092 */
mbed_official 87:085cde657901 1093 HAL_StatusTypeDef HAL_USART_DMAStop(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1094 {
mbed_official 87:085cde657901 1095 /* Process Locked */
mbed_official 87:085cde657901 1096 __HAL_LOCK(husart);
mbed_official 87:085cde657901 1097
mbed_official 87:085cde657901 1098 /* Disable the USART Tx/Rx DMA requests */
mbed_official 87:085cde657901 1099 husart->Instance->CR3 &= ~USART_CR3_DMAT;
mbed_official 87:085cde657901 1100 husart->Instance->CR3 &= ~USART_CR3_DMAR;
mbed_official 87:085cde657901 1101
mbed_official 106:ced8cbb51063 1102 /* Abort the USART DMA Tx Stream */
mbed_official 106:ced8cbb51063 1103 if(husart->hdmatx != NULL)
mbed_official 106:ced8cbb51063 1104 {
mbed_official 106:ced8cbb51063 1105 HAL_DMA_Abort(husart->hdmatx);
mbed_official 106:ced8cbb51063 1106 }
mbed_official 106:ced8cbb51063 1107 /* Abort the USART DMA Rx Stream */
mbed_official 106:ced8cbb51063 1108 if(husart->hdmarx != NULL)
mbed_official 106:ced8cbb51063 1109 {
mbed_official 106:ced8cbb51063 1110 HAL_DMA_Abort(husart->hdmarx);
mbed_official 106:ced8cbb51063 1111 }
mbed_official 87:085cde657901 1112 /* Disable USART peripheral */
mbed_official 87:085cde657901 1113 __USART_DISABLE(husart);
mbed_official 87:085cde657901 1114
mbed_official 87:085cde657901 1115 husart->State = HAL_USART_STATE_READY;
mbed_official 87:085cde657901 1116
mbed_official 87:085cde657901 1117 /* Process Unlocked */
mbed_official 87:085cde657901 1118 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 1119
mbed_official 87:085cde657901 1120 return HAL_OK;
mbed_official 87:085cde657901 1121 }
mbed_official 87:085cde657901 1122
mbed_official 87:085cde657901 1123 /**
mbed_official 87:085cde657901 1124 * @brief This function handles USART interrupt request.
mbed_official 226:b062af740e40 1125 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1126 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 1127 * @retval None
mbed_official 87:085cde657901 1128 */
mbed_official 87:085cde657901 1129 void HAL_USART_IRQHandler(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1130 {
mbed_official 87:085cde657901 1131 uint32_t tmp1 = 0, tmp2 = 0;
mbed_official 87:085cde657901 1132
mbed_official 87:085cde657901 1133 tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_PE);
mbed_official 87:085cde657901 1134 tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_PE);
mbed_official 87:085cde657901 1135 /* USART parity error interrupt occurred -----------------------------------*/
mbed_official 87:085cde657901 1136 if((tmp1 != RESET) && (tmp2 != RESET))
mbed_official 87:085cde657901 1137 {
mbed_official 87:085cde657901 1138 __HAL_USART_CLEAR_FLAG(husart, USART_FLAG_PE);
mbed_official 87:085cde657901 1139 husart->ErrorCode |= HAL_USART_ERROR_PE;
mbed_official 87:085cde657901 1140 }
mbed_official 87:085cde657901 1141
mbed_official 87:085cde657901 1142 tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_FE);
mbed_official 87:085cde657901 1143 tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_ERR);
mbed_official 87:085cde657901 1144 /* USART frame error interrupt occurred ------------------------------------*/
mbed_official 87:085cde657901 1145 if((tmp1 != RESET) && (tmp2 != RESET))
mbed_official 87:085cde657901 1146 {
mbed_official 87:085cde657901 1147 __HAL_USART_CLEAR_FLAG(husart, USART_FLAG_FE);
mbed_official 87:085cde657901 1148 husart->ErrorCode |= HAL_USART_ERROR_FE;
mbed_official 87:085cde657901 1149 }
mbed_official 87:085cde657901 1150
mbed_official 87:085cde657901 1151 tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_NE);
mbed_official 87:085cde657901 1152 tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_ERR);
mbed_official 87:085cde657901 1153 /* USART noise error interrupt occurred ------------------------------------*/
mbed_official 87:085cde657901 1154 if((tmp1 != RESET) && (tmp2 != RESET))
mbed_official 87:085cde657901 1155 {
mbed_official 87:085cde657901 1156 __HAL_USART_CLEAR_FLAG(husart, USART_FLAG_NE);
mbed_official 87:085cde657901 1157 husart->ErrorCode |= HAL_USART_ERROR_NE;
mbed_official 87:085cde657901 1158 }
mbed_official 87:085cde657901 1159
mbed_official 87:085cde657901 1160 tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_ORE);
mbed_official 87:085cde657901 1161 tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_ERR);
mbed_official 87:085cde657901 1162 /* USART Over-Run interrupt occurred ---------------------------------------*/
mbed_official 87:085cde657901 1163 if((tmp1 != RESET) && (tmp2 != RESET))
mbed_official 87:085cde657901 1164 {
mbed_official 87:085cde657901 1165 __HAL_USART_CLEAR_FLAG(husart, USART_FLAG_ORE);
mbed_official 87:085cde657901 1166 husart->ErrorCode |= HAL_USART_ERROR_ORE;
mbed_official 87:085cde657901 1167 }
mbed_official 87:085cde657901 1168
mbed_official 87:085cde657901 1169 if(husart->ErrorCode != HAL_USART_ERROR_NONE)
mbed_official 87:085cde657901 1170 {
mbed_official 87:085cde657901 1171 /* Set the USART state ready to be able to start again the process */
mbed_official 87:085cde657901 1172 husart->State = HAL_USART_STATE_READY;
mbed_official 87:085cde657901 1173
mbed_official 87:085cde657901 1174 HAL_USART_ErrorCallback(husart);
mbed_official 87:085cde657901 1175 }
mbed_official 87:085cde657901 1176
mbed_official 87:085cde657901 1177 tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_RXNE);
mbed_official 87:085cde657901 1178 tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_RXNE);
mbed_official 87:085cde657901 1179 /* USART in mode Receiver --------------------------------------------------*/
mbed_official 87:085cde657901 1180 if((tmp1 != RESET) && (tmp2 != RESET))
mbed_official 87:085cde657901 1181 {
mbed_official 87:085cde657901 1182 if(husart->State == HAL_USART_STATE_BUSY_RX)
mbed_official 87:085cde657901 1183 {
mbed_official 87:085cde657901 1184 USART_Receive_IT(husart);
mbed_official 87:085cde657901 1185 }
mbed_official 87:085cde657901 1186 else
mbed_official 87:085cde657901 1187 {
mbed_official 87:085cde657901 1188 USART_TransmitReceive_IT(husart);
mbed_official 87:085cde657901 1189 }
mbed_official 87:085cde657901 1190 }
mbed_official 87:085cde657901 1191
mbed_official 87:085cde657901 1192 tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_TC);
mbed_official 87:085cde657901 1193 tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_TC);
mbed_official 87:085cde657901 1194 /* USART in mode Transmitter -----------------------------------------------*/
mbed_official 87:085cde657901 1195 if((tmp1 != RESET) && (tmp2 != RESET))
mbed_official 87:085cde657901 1196 {
mbed_official 87:085cde657901 1197 if(husart->State == HAL_USART_STATE_BUSY_TX)
mbed_official 87:085cde657901 1198 {
mbed_official 87:085cde657901 1199 USART_Transmit_IT(husart);
mbed_official 87:085cde657901 1200 }
mbed_official 87:085cde657901 1201 else
mbed_official 87:085cde657901 1202 {
mbed_official 87:085cde657901 1203 USART_TransmitReceive_IT(husart);
mbed_official 87:085cde657901 1204 }
mbed_official 87:085cde657901 1205 }
mbed_official 87:085cde657901 1206 }
mbed_official 87:085cde657901 1207
mbed_official 87:085cde657901 1208 /**
mbed_official 87:085cde657901 1209 * @brief Tx Transfer completed callbacks.
mbed_official 226:b062af740e40 1210 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1211 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 1212 * @retval None
mbed_official 87:085cde657901 1213 */
mbed_official 87:085cde657901 1214 __weak void HAL_USART_TxCpltCallback(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1215 {
mbed_official 87:085cde657901 1216 /* NOTE: This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 1217 the HAL_USART_TxCpltCallback could be implemented in the user file
mbed_official 87:085cde657901 1218 */
mbed_official 87:085cde657901 1219 }
mbed_official 87:085cde657901 1220
mbed_official 87:085cde657901 1221 /**
mbed_official 87:085cde657901 1222 * @brief Tx Half Transfer completed callbacks.
mbed_official 226:b062af740e40 1223 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1224 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 1225 * @retval None
mbed_official 87:085cde657901 1226 */
mbed_official 87:085cde657901 1227 __weak void HAL_USART_TxHalfCpltCallback(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1228 {
mbed_official 87:085cde657901 1229 /* NOTE: This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 1230 the HAL_USART_TxCpltCallback could be implemented in the user file
mbed_official 87:085cde657901 1231 */
mbed_official 87:085cde657901 1232 }
mbed_official 87:085cde657901 1233
mbed_official 87:085cde657901 1234 /**
mbed_official 87:085cde657901 1235 * @brief Rx Transfer completed callbacks.
mbed_official 226:b062af740e40 1236 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1237 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 1238 * @retval None
mbed_official 87:085cde657901 1239 */
mbed_official 87:085cde657901 1240 __weak void HAL_USART_RxCpltCallback(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1241 {
mbed_official 87:085cde657901 1242 /* NOTE: This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 1243 the HAL_USART_TxCpltCallback could be implemented in the user file
mbed_official 87:085cde657901 1244 */
mbed_official 87:085cde657901 1245 }
mbed_official 87:085cde657901 1246
mbed_official 87:085cde657901 1247 /**
mbed_official 87:085cde657901 1248 * @brief Rx Half Transfer completed callbacks.
mbed_official 226:b062af740e40 1249 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1250 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 1251 * @retval None
mbed_official 87:085cde657901 1252 */
mbed_official 87:085cde657901 1253 __weak void HAL_USART_RxHalfCpltCallback(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1254 {
mbed_official 87:085cde657901 1255 /* NOTE: This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 1256 the HAL_USART_TxCpltCallback could be implemented in the user file
mbed_official 87:085cde657901 1257 */
mbed_official 87:085cde657901 1258 }
mbed_official 87:085cde657901 1259
mbed_official 87:085cde657901 1260 /**
mbed_official 87:085cde657901 1261 * @brief Tx/Rx Transfers completed callback for the non-blocking process.
mbed_official 226:b062af740e40 1262 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1263 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 1264 * @retval None
mbed_official 87:085cde657901 1265 */
mbed_official 87:085cde657901 1266 __weak void HAL_USART_TxRxCpltCallback(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1267 {
mbed_official 87:085cde657901 1268 /* NOTE: This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 1269 the HAL_USART_TxCpltCallback could be implemented in the user file
mbed_official 87:085cde657901 1270 */
mbed_official 87:085cde657901 1271 }
mbed_official 87:085cde657901 1272
mbed_official 87:085cde657901 1273 /**
mbed_official 87:085cde657901 1274 * @brief USART error callbacks.
mbed_official 226:b062af740e40 1275 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1276 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 1277 * @retval None
mbed_official 87:085cde657901 1278 */
mbed_official 87:085cde657901 1279 __weak void HAL_USART_ErrorCallback(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1280 {
mbed_official 87:085cde657901 1281 /* NOTE: This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 1282 the HAL_USART_ErrorCallback could be implemented in the user file
mbed_official 87:085cde657901 1283 */
mbed_official 87:085cde657901 1284 }
mbed_official 87:085cde657901 1285
mbed_official 87:085cde657901 1286 /**
mbed_official 87:085cde657901 1287 * @}
mbed_official 87:085cde657901 1288 */
mbed_official 87:085cde657901 1289
mbed_official 87:085cde657901 1290 /** @defgroup USART_Group3 Peripheral State and Errors functions
mbed_official 87:085cde657901 1291 * @brief USART State and Errors functions
mbed_official 87:085cde657901 1292 *
mbed_official 87:085cde657901 1293 @verbatim
mbed_official 87:085cde657901 1294 ==============================================================================
mbed_official 87:085cde657901 1295 ##### Peripheral State and Errors functions #####
mbed_official 87:085cde657901 1296 ==============================================================================
mbed_official 87:085cde657901 1297 [..]
mbed_official 87:085cde657901 1298 This subsection provides a set of functions allowing to return the State of
mbed_official 87:085cde657901 1299 USART communication
mbed_official 226:b062af740e40 1300 process, return Peripheral Errors occurred during communication process
mbed_official 87:085cde657901 1301 (+) HAL_USART_GetState() API can be helpful to check in run-time the state
mbed_official 87:085cde657901 1302 of the USART peripheral.
mbed_official 226:b062af740e40 1303 (+) HAL_USART_GetError() check in run-time errors that could be occurred during
mbed_official 87:085cde657901 1304 communication.
mbed_official 87:085cde657901 1305 @endverbatim
mbed_official 87:085cde657901 1306 * @{
mbed_official 87:085cde657901 1307 */
mbed_official 87:085cde657901 1308
mbed_official 87:085cde657901 1309 /**
mbed_official 87:085cde657901 1310 * @brief Returns the USART state.
mbed_official 226:b062af740e40 1311 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1312 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 1313 * @retval HAL state
mbed_official 87:085cde657901 1314 */
mbed_official 87:085cde657901 1315 HAL_USART_StateTypeDef HAL_USART_GetState(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1316 {
mbed_official 87:085cde657901 1317 return husart->State;
mbed_official 87:085cde657901 1318 }
mbed_official 87:085cde657901 1319
mbed_official 87:085cde657901 1320 /**
mbed_official 87:085cde657901 1321 * @brief Return the USART error code
mbed_official 87:085cde657901 1322 * @param husart : pointer to a USART_HandleTypeDef structure that contains
mbed_official 87:085cde657901 1323 * the configuration information for the specified USART.
mbed_official 87:085cde657901 1324 * @retval USART Error Code
mbed_official 87:085cde657901 1325 */
mbed_official 87:085cde657901 1326 uint32_t HAL_USART_GetError(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1327 {
mbed_official 87:085cde657901 1328 return husart->ErrorCode;
mbed_official 87:085cde657901 1329 }
mbed_official 87:085cde657901 1330
mbed_official 87:085cde657901 1331 /**
mbed_official 87:085cde657901 1332 * @}
mbed_official 87:085cde657901 1333 */
mbed_official 87:085cde657901 1334
mbed_official 87:085cde657901 1335
mbed_official 87:085cde657901 1336 /**
mbed_official 87:085cde657901 1337 * @brief DMA USART transmit process complete callback.
mbed_official 87:085cde657901 1338 * @param hdma: DMA handle
mbed_official 87:085cde657901 1339 * @retval None
mbed_official 87:085cde657901 1340 */
mbed_official 87:085cde657901 1341 static void USART_DMATransmitCplt(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1342 {
mbed_official 87:085cde657901 1343 USART_HandleTypeDef* husart = ( USART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 87:085cde657901 1344
mbed_official 87:085cde657901 1345 husart->TxXferCount = 0;
mbed_official 87:085cde657901 1346 if(husart->State == HAL_USART_STATE_BUSY_TX)
mbed_official 87:085cde657901 1347 {
mbed_official 106:ced8cbb51063 1348 /* Wait for USART TC Flag */
mbed_official 106:ced8cbb51063 1349 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, USART_TIMEOUT_VALUE) != HAL_OK)
mbed_official 106:ced8cbb51063 1350 {
mbed_official 226:b062af740e40 1351 /* Timeout occurred */
mbed_official 106:ced8cbb51063 1352 husart->State = HAL_USART_STATE_TIMEOUT;
mbed_official 106:ced8cbb51063 1353 HAL_USART_ErrorCallback(husart);
mbed_official 106:ced8cbb51063 1354 }
mbed_official 106:ced8cbb51063 1355 else
mbed_official 106:ced8cbb51063 1356 {
mbed_official 106:ced8cbb51063 1357 /* No Timeout */
mbed_official 106:ced8cbb51063 1358 /* Disable the DMA transfer for transmit request by setting the DMAT bit
mbed_official 106:ced8cbb51063 1359 in the USART CR3 register */
mbed_official 106:ced8cbb51063 1360 husart->Instance->CR3 &= ~(USART_CR3_DMAT);
mbed_official 106:ced8cbb51063 1361 husart->State= HAL_USART_STATE_READY;
mbed_official 106:ced8cbb51063 1362 }
mbed_official 87:085cde657901 1363 }
mbed_official 87:085cde657901 1364 /* the usart state is HAL_USART_STATE_BUSY_TX_RX*/
mbed_official 87:085cde657901 1365 else
mbed_official 87:085cde657901 1366 {
mbed_official 87:085cde657901 1367 husart->State= HAL_USART_STATE_BUSY_RX;
mbed_official 106:ced8cbb51063 1368 HAL_USART_TxCpltCallback(husart);
mbed_official 87:085cde657901 1369 }
mbed_official 87:085cde657901 1370 }
mbed_official 87:085cde657901 1371
mbed_official 87:085cde657901 1372 /**
mbed_official 87:085cde657901 1373 * @brief DMA USART transmit process half complete callback
mbed_official 226:b062af740e40 1374 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1375 * the configuration information for the specified DMA module.
mbed_official 87:085cde657901 1376 * @retval None
mbed_official 87:085cde657901 1377 */
mbed_official 87:085cde657901 1378 static void USART_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1379 {
mbed_official 87:085cde657901 1380 USART_HandleTypeDef* husart = (USART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
mbed_official 87:085cde657901 1381
mbed_official 87:085cde657901 1382 HAL_USART_TxHalfCpltCallback(husart);
mbed_official 87:085cde657901 1383 }
mbed_official 87:085cde657901 1384
mbed_official 87:085cde657901 1385 /**
mbed_official 87:085cde657901 1386 * @brief DMA USART receive process complete callback.
mbed_official 87:085cde657901 1387 * @param hdma: DMA handle
mbed_official 87:085cde657901 1388 * @retval None
mbed_official 87:085cde657901 1389 */
mbed_official 87:085cde657901 1390 static void USART_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1391 {
mbed_official 87:085cde657901 1392 USART_HandleTypeDef* husart = ( USART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 87:085cde657901 1393
mbed_official 87:085cde657901 1394 husart->RxXferCount = 0;
mbed_official 87:085cde657901 1395
mbed_official 87:085cde657901 1396 /* Disable the DMA transfer for the Transmit/receiver requests by setting the DMAT/DMAR bit
mbed_official 87:085cde657901 1397 in the USART CR3 register */
mbed_official 87:085cde657901 1398 husart->Instance->CR3 &= ~(USART_CR3_DMAR);
mbed_official 87:085cde657901 1399 husart->Instance->CR3 &= ~(USART_CR3_DMAT);
mbed_official 87:085cde657901 1400
mbed_official 87:085cde657901 1401 husart->State= HAL_USART_STATE_READY;
mbed_official 87:085cde657901 1402
mbed_official 87:085cde657901 1403 HAL_USART_RxCpltCallback(husart);
mbed_official 87:085cde657901 1404 }
mbed_official 87:085cde657901 1405
mbed_official 87:085cde657901 1406 /**
mbed_official 87:085cde657901 1407 * @brief DMA USART receive process half complete callback
mbed_official 226:b062af740e40 1408 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1409 * the configuration information for the specified DMA module.
mbed_official 87:085cde657901 1410 * @retval None
mbed_official 87:085cde657901 1411 */
mbed_official 87:085cde657901 1412 static void USART_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1413 {
mbed_official 87:085cde657901 1414 USART_HandleTypeDef* husart = (USART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
mbed_official 87:085cde657901 1415
mbed_official 87:085cde657901 1416 HAL_USART_RxHalfCpltCallback(husart);
mbed_official 87:085cde657901 1417 }
mbed_official 87:085cde657901 1418
mbed_official 87:085cde657901 1419 /**
mbed_official 87:085cde657901 1420 * @brief DMA USART communication error callback.
mbed_official 87:085cde657901 1421 * @param hdma: DMA handle
mbed_official 87:085cde657901 1422 * @retval None
mbed_official 87:085cde657901 1423 */
mbed_official 87:085cde657901 1424 static void USART_DMAError(DMA_HandleTypeDef *hdma)
mbed_official 87:085cde657901 1425 {
mbed_official 87:085cde657901 1426 USART_HandleTypeDef* husart = ( USART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 87:085cde657901 1427
mbed_official 87:085cde657901 1428 husart->RxXferCount = 0;
mbed_official 87:085cde657901 1429 husart->TxXferCount = 0;
mbed_official 87:085cde657901 1430 husart->ErrorCode |= HAL_USART_ERROR_DMA;
mbed_official 87:085cde657901 1431 husart->State= HAL_USART_STATE_READY;
mbed_official 87:085cde657901 1432
mbed_official 87:085cde657901 1433 HAL_USART_ErrorCallback(husart);
mbed_official 87:085cde657901 1434 }
mbed_official 87:085cde657901 1435
mbed_official 87:085cde657901 1436 /**
mbed_official 87:085cde657901 1437 * @brief This function handles USART Communication Timeout.
mbed_official 226:b062af740e40 1438 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1439 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 1440 * @param Flag: specifies the USART flag to check.
mbed_official 87:085cde657901 1441 * @param Status: The new Flag status (SET or RESET).
mbed_official 87:085cde657901 1442 * @param Timeout: Timeout duration
mbed_official 87:085cde657901 1443 * @retval HAL status
mbed_official 87:085cde657901 1444 */
mbed_official 87:085cde657901 1445 static HAL_StatusTypeDef USART_WaitOnFlagUntilTimeout(USART_HandleTypeDef *husart, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
mbed_official 87:085cde657901 1446 {
mbed_official 87:085cde657901 1447 uint32_t timeout = 0;
mbed_official 87:085cde657901 1448
mbed_official 87:085cde657901 1449 timeout = HAL_GetTick() + Timeout;
mbed_official 87:085cde657901 1450
mbed_official 87:085cde657901 1451 /* Wait until flag is set */
mbed_official 87:085cde657901 1452 if(Status == RESET)
mbed_official 87:085cde657901 1453 {
mbed_official 87:085cde657901 1454 while(__HAL_USART_GET_FLAG(husart, Flag) == RESET)
mbed_official 87:085cde657901 1455 {
mbed_official 87:085cde657901 1456 /* Check for the Timeout */
mbed_official 87:085cde657901 1457 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 1458 {
mbed_official 87:085cde657901 1459 if(HAL_GetTick() >= timeout)
mbed_official 87:085cde657901 1460 {
mbed_official 87:085cde657901 1461 /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
mbed_official 87:085cde657901 1462 __USART_DISABLE_IT(husart, USART_IT_TXE);
mbed_official 87:085cde657901 1463 __USART_DISABLE_IT(husart, USART_IT_RXNE);
mbed_official 87:085cde657901 1464 __USART_DISABLE_IT(husart, USART_IT_PE);
mbed_official 87:085cde657901 1465 __USART_DISABLE_IT(husart, USART_IT_ERR);
mbed_official 87:085cde657901 1466
mbed_official 87:085cde657901 1467 husart->State= HAL_USART_STATE_READY;
mbed_official 87:085cde657901 1468
mbed_official 87:085cde657901 1469 /* Process Unlocked */
mbed_official 87:085cde657901 1470 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 1471
mbed_official 87:085cde657901 1472 return HAL_TIMEOUT;
mbed_official 87:085cde657901 1473 }
mbed_official 87:085cde657901 1474 }
mbed_official 87:085cde657901 1475 }
mbed_official 87:085cde657901 1476 }
mbed_official 87:085cde657901 1477 else
mbed_official 87:085cde657901 1478 {
mbed_official 87:085cde657901 1479 while(__HAL_USART_GET_FLAG(husart, Flag) != RESET)
mbed_official 87:085cde657901 1480 {
mbed_official 87:085cde657901 1481 /* Check for the Timeout */
mbed_official 87:085cde657901 1482 if(Timeout != HAL_MAX_DELAY)
mbed_official 87:085cde657901 1483 {
mbed_official 87:085cde657901 1484 if(HAL_GetTick() >= timeout)
mbed_official 87:085cde657901 1485 {
mbed_official 87:085cde657901 1486 /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
mbed_official 87:085cde657901 1487 __USART_DISABLE_IT(husart, USART_IT_TXE);
mbed_official 87:085cde657901 1488 __USART_DISABLE_IT(husart, USART_IT_RXNE);
mbed_official 87:085cde657901 1489 __USART_DISABLE_IT(husart, USART_IT_PE);
mbed_official 87:085cde657901 1490 __USART_DISABLE_IT(husart, USART_IT_ERR);
mbed_official 87:085cde657901 1491
mbed_official 87:085cde657901 1492 husart->State= HAL_USART_STATE_READY;
mbed_official 87:085cde657901 1493
mbed_official 87:085cde657901 1494 /* Process Unlocked */
mbed_official 87:085cde657901 1495 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 1496
mbed_official 87:085cde657901 1497 return HAL_TIMEOUT;
mbed_official 87:085cde657901 1498 }
mbed_official 87:085cde657901 1499 }
mbed_official 87:085cde657901 1500 }
mbed_official 87:085cde657901 1501 }
mbed_official 87:085cde657901 1502 return HAL_OK;
mbed_official 87:085cde657901 1503 }
mbed_official 87:085cde657901 1504
mbed_official 87:085cde657901 1505
mbed_official 87:085cde657901 1506 /**
mbed_official 87:085cde657901 1507 * @brief Simplex Send an amount of data in non-blocking mode.
mbed_official 226:b062af740e40 1508 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1509 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 1510 * @retval HAL status
mbed_official 87:085cde657901 1511 * @note The USART errors are not managed to avoid the overrun error.
mbed_official 87:085cde657901 1512 */
mbed_official 87:085cde657901 1513 static HAL_StatusTypeDef USART_Transmit_IT(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1514 {
mbed_official 87:085cde657901 1515 uint16_t* tmp;
mbed_official 87:085cde657901 1516
mbed_official 87:085cde657901 1517 if(husart->State == HAL_USART_STATE_BUSY_TX)
mbed_official 87:085cde657901 1518 {
mbed_official 87:085cde657901 1519 if(husart->Init.WordLength == USART_WORDLENGTH_9B)
mbed_official 87:085cde657901 1520 {
mbed_official 87:085cde657901 1521 tmp = (uint16_t*) husart->pTxBuffPtr;
mbed_official 87:085cde657901 1522 husart->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF);
mbed_official 87:085cde657901 1523 if(husart->Init.Parity == USART_PARITY_NONE)
mbed_official 87:085cde657901 1524 {
mbed_official 87:085cde657901 1525 husart->pTxBuffPtr += 2;
mbed_official 87:085cde657901 1526 }
mbed_official 87:085cde657901 1527 else
mbed_official 87:085cde657901 1528 {
mbed_official 87:085cde657901 1529 husart->pTxBuffPtr += 1;
mbed_official 87:085cde657901 1530 }
mbed_official 87:085cde657901 1531 }
mbed_official 87:085cde657901 1532 else
mbed_official 87:085cde657901 1533 {
mbed_official 87:085cde657901 1534 husart->Instance->DR = (uint8_t)(*husart->pTxBuffPtr++ & (uint8_t)0x00FF);
mbed_official 87:085cde657901 1535 }
mbed_official 87:085cde657901 1536
mbed_official 87:085cde657901 1537 if(--husart->TxXferCount == 0)
mbed_official 87:085cde657901 1538 {
mbed_official 87:085cde657901 1539 /* Disable the USART Transmit Complete Interrupt */
mbed_official 87:085cde657901 1540 __USART_DISABLE_IT(husart, USART_IT_TC);
mbed_official 87:085cde657901 1541
mbed_official 87:085cde657901 1542 /* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official 87:085cde657901 1543 __USART_DISABLE_IT(husart, USART_IT_ERR);
mbed_official 87:085cde657901 1544
mbed_official 87:085cde657901 1545 husart->State = HAL_USART_STATE_READY;
mbed_official 87:085cde657901 1546
mbed_official 87:085cde657901 1547 HAL_USART_TxCpltCallback(husart);
mbed_official 87:085cde657901 1548
mbed_official 87:085cde657901 1549 return HAL_OK;
mbed_official 87:085cde657901 1550 }
mbed_official 87:085cde657901 1551 return HAL_OK;
mbed_official 87:085cde657901 1552 }
mbed_official 87:085cde657901 1553 else
mbed_official 87:085cde657901 1554 {
mbed_official 87:085cde657901 1555 return HAL_BUSY;
mbed_official 87:085cde657901 1556 }
mbed_official 87:085cde657901 1557 }
mbed_official 87:085cde657901 1558
mbed_official 87:085cde657901 1559 /**
mbed_official 87:085cde657901 1560 * @brief Simplex Receive an amount of data in non-blocking mode.
mbed_official 226:b062af740e40 1561 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1562 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 1563 * @retval HAL status
mbed_official 87:085cde657901 1564 */
mbed_official 87:085cde657901 1565 static HAL_StatusTypeDef USART_Receive_IT(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1566 {
mbed_official 87:085cde657901 1567 uint16_t* tmp;
mbed_official 87:085cde657901 1568 if(husart->State == HAL_USART_STATE_BUSY_RX)
mbed_official 87:085cde657901 1569 {
mbed_official 87:085cde657901 1570 if(husart->Init.WordLength == USART_WORDLENGTH_9B)
mbed_official 87:085cde657901 1571 {
mbed_official 87:085cde657901 1572 tmp = (uint16_t*) husart->pRxBuffPtr;
mbed_official 87:085cde657901 1573 if(husart->Init.Parity == USART_PARITY_NONE)
mbed_official 87:085cde657901 1574 {
mbed_official 87:085cde657901 1575 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x01FF);
mbed_official 87:085cde657901 1576 husart->pRxBuffPtr += 2;
mbed_official 87:085cde657901 1577 }
mbed_official 87:085cde657901 1578 else
mbed_official 87:085cde657901 1579 {
mbed_official 87:085cde657901 1580 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x00FF);
mbed_official 87:085cde657901 1581 husart->pRxBuffPtr += 1;
mbed_official 87:085cde657901 1582 }
mbed_official 87:085cde657901 1583 if(--husart->RxXferCount != 0x00)
mbed_official 87:085cde657901 1584 {
mbed_official 87:085cde657901 1585 /* Send dummy byte in order to generate the clock for the slave to send the next data */
mbed_official 226:b062af740e40 1586 husart->Instance->DR = (DUMMY_DATA & (uint16_t)0x01FF);
mbed_official 87:085cde657901 1587 }
mbed_official 87:085cde657901 1588 }
mbed_official 87:085cde657901 1589 else
mbed_official 87:085cde657901 1590 {
mbed_official 87:085cde657901 1591 if(husart->Init.Parity == USART_PARITY_NONE)
mbed_official 87:085cde657901 1592 {
mbed_official 87:085cde657901 1593 *husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x00FF);
mbed_official 87:085cde657901 1594 }
mbed_official 87:085cde657901 1595 else
mbed_official 87:085cde657901 1596 {
mbed_official 87:085cde657901 1597 *husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x007F);
mbed_official 87:085cde657901 1598 }
mbed_official 87:085cde657901 1599
mbed_official 87:085cde657901 1600 if(--husart->RxXferCount != 0x00)
mbed_official 87:085cde657901 1601 {
mbed_official 87:085cde657901 1602 /* Send dummy byte in order to generate the clock for the slave to send the next data */
mbed_official 226:b062af740e40 1603 husart->Instance->DR = (DUMMY_DATA & (uint16_t)0x00FF);
mbed_official 87:085cde657901 1604 }
mbed_official 87:085cde657901 1605 }
mbed_official 87:085cde657901 1606
mbed_official 87:085cde657901 1607 if(husart->RxXferCount == 0)
mbed_official 87:085cde657901 1608 {
mbed_official 87:085cde657901 1609 /* Disable the USART RXNE Interrupt */
mbed_official 87:085cde657901 1610 __USART_DISABLE_IT(husart, USART_IT_RXNE);
mbed_official 87:085cde657901 1611
mbed_official 87:085cde657901 1612 /* Disable the USART Parity Error Interrupt */
mbed_official 87:085cde657901 1613 __USART_DISABLE_IT(husart, USART_IT_PE);
mbed_official 87:085cde657901 1614
mbed_official 87:085cde657901 1615 /* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official 87:085cde657901 1616 __USART_DISABLE_IT(husart, USART_IT_ERR);
mbed_official 87:085cde657901 1617
mbed_official 87:085cde657901 1618 husart->State = HAL_USART_STATE_READY;
mbed_official 87:085cde657901 1619 HAL_USART_RxCpltCallback(husart);
mbed_official 87:085cde657901 1620
mbed_official 87:085cde657901 1621 return HAL_OK;
mbed_official 87:085cde657901 1622 }
mbed_official 87:085cde657901 1623 return HAL_OK;
mbed_official 87:085cde657901 1624 }
mbed_official 87:085cde657901 1625 else
mbed_official 87:085cde657901 1626 {
mbed_official 87:085cde657901 1627 return HAL_BUSY;
mbed_official 87:085cde657901 1628 }
mbed_official 87:085cde657901 1629 }
mbed_official 87:085cde657901 1630
mbed_official 87:085cde657901 1631 /**
mbed_official 87:085cde657901 1632 * @brief Full-Duplex Send receive an amount of data in full-duplex mode (non-blocking).
mbed_official 226:b062af740e40 1633 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1634 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 1635 * @retval HAL status
mbed_official 87:085cde657901 1636 */
mbed_official 87:085cde657901 1637 static HAL_StatusTypeDef USART_TransmitReceive_IT(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1638 {
mbed_official 87:085cde657901 1639 uint16_t* tmp;
mbed_official 87:085cde657901 1640
mbed_official 87:085cde657901 1641 if(husart->State == HAL_USART_STATE_BUSY_TX_RX)
mbed_official 87:085cde657901 1642 {
mbed_official 87:085cde657901 1643 /* Process Locked */
mbed_official 87:085cde657901 1644 __HAL_LOCK(husart);
mbed_official 87:085cde657901 1645 if(husart->TxXferCount != 0x00)
mbed_official 87:085cde657901 1646 {
mbed_official 87:085cde657901 1647 if(__HAL_USART_GET_FLAG(husart, USART_FLAG_TXE) != RESET)
mbed_official 87:085cde657901 1648 {
mbed_official 87:085cde657901 1649 if(husart->Init.WordLength == USART_WORDLENGTH_9B)
mbed_official 87:085cde657901 1650 {
mbed_official 87:085cde657901 1651 tmp = (uint16_t*) husart->pTxBuffPtr;
mbed_official 87:085cde657901 1652 husart->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF);
mbed_official 87:085cde657901 1653 if(husart->Init.Parity == USART_PARITY_NONE)
mbed_official 87:085cde657901 1654 {
mbed_official 87:085cde657901 1655 husart->pTxBuffPtr += 2;
mbed_official 87:085cde657901 1656 }
mbed_official 87:085cde657901 1657 else
mbed_official 87:085cde657901 1658 {
mbed_official 87:085cde657901 1659 husart->pTxBuffPtr += 1;
mbed_official 87:085cde657901 1660 }
mbed_official 87:085cde657901 1661 }
mbed_official 87:085cde657901 1662 else
mbed_official 87:085cde657901 1663 {
mbed_official 87:085cde657901 1664 husart->Instance->DR = (uint8_t)(*husart->pTxBuffPtr++ & (uint8_t)0x00FF);
mbed_official 87:085cde657901 1665 }
mbed_official 87:085cde657901 1666 husart->TxXferCount--;
mbed_official 87:085cde657901 1667
mbed_official 87:085cde657901 1668 /* Check the latest data transmitted */
mbed_official 87:085cde657901 1669 if(husart->TxXferCount == 0)
mbed_official 87:085cde657901 1670 {
mbed_official 87:085cde657901 1671 __USART_DISABLE_IT(husart, USART_IT_TC);
mbed_official 87:085cde657901 1672 }
mbed_official 87:085cde657901 1673 }
mbed_official 87:085cde657901 1674 }
mbed_official 87:085cde657901 1675
mbed_official 87:085cde657901 1676 if(husart->RxXferCount != 0x00)
mbed_official 87:085cde657901 1677 {
mbed_official 87:085cde657901 1678 if(__HAL_USART_GET_FLAG(husart, USART_FLAG_RXNE) != RESET)
mbed_official 87:085cde657901 1679 {
mbed_official 87:085cde657901 1680 if(husart->Init.WordLength == USART_WORDLENGTH_9B)
mbed_official 87:085cde657901 1681 {
mbed_official 87:085cde657901 1682 tmp = (uint16_t*) husart->pRxBuffPtr;
mbed_official 87:085cde657901 1683 if(husart->Init.Parity == USART_PARITY_NONE)
mbed_official 87:085cde657901 1684 {
mbed_official 87:085cde657901 1685 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x01FF);
mbed_official 87:085cde657901 1686 husart->pRxBuffPtr += 2;
mbed_official 87:085cde657901 1687 }
mbed_official 87:085cde657901 1688 else
mbed_official 87:085cde657901 1689 {
mbed_official 87:085cde657901 1690 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x00FF);
mbed_official 87:085cde657901 1691 husart->pRxBuffPtr += 1;
mbed_official 87:085cde657901 1692 }
mbed_official 87:085cde657901 1693 }
mbed_official 87:085cde657901 1694 else
mbed_official 87:085cde657901 1695 {
mbed_official 87:085cde657901 1696 if(husart->Init.Parity == USART_PARITY_NONE)
mbed_official 87:085cde657901 1697 {
mbed_official 87:085cde657901 1698 *husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x00FF);
mbed_official 87:085cde657901 1699 }
mbed_official 87:085cde657901 1700 else
mbed_official 87:085cde657901 1701 {
mbed_official 87:085cde657901 1702 *husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x007F);
mbed_official 87:085cde657901 1703 }
mbed_official 87:085cde657901 1704 }
mbed_official 87:085cde657901 1705 husart->RxXferCount--;
mbed_official 87:085cde657901 1706 }
mbed_official 87:085cde657901 1707 }
mbed_official 87:085cde657901 1708
mbed_official 87:085cde657901 1709 /* Check the latest data received */
mbed_official 87:085cde657901 1710 if(husart->RxXferCount == 0)
mbed_official 87:085cde657901 1711 {
mbed_official 87:085cde657901 1712 __USART_DISABLE_IT(husart, USART_IT_RXNE);
mbed_official 87:085cde657901 1713
mbed_official 87:085cde657901 1714 /* Disable the USART Parity Error Interrupt */
mbed_official 87:085cde657901 1715 __USART_DISABLE_IT(husart, USART_IT_PE);
mbed_official 87:085cde657901 1716
mbed_official 87:085cde657901 1717 /* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official 87:085cde657901 1718 __USART_DISABLE_IT(husart, USART_IT_ERR);
mbed_official 87:085cde657901 1719
mbed_official 87:085cde657901 1720 husart->State = HAL_USART_STATE_READY;
mbed_official 87:085cde657901 1721
mbed_official 87:085cde657901 1722 /* Call the Process Unlocked before calling the Tx\Rx callback API to give the possibility to
mbed_official 87:085cde657901 1723 start again the Transmission\Reception under the Tx\Rx callback API */
mbed_official 87:085cde657901 1724 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 1725
mbed_official 87:085cde657901 1726 HAL_USART_TxRxCpltCallback(husart);
mbed_official 87:085cde657901 1727
mbed_official 87:085cde657901 1728 return HAL_OK;
mbed_official 87:085cde657901 1729 }
mbed_official 87:085cde657901 1730
mbed_official 87:085cde657901 1731 /* Process Unlocked */
mbed_official 87:085cde657901 1732 __HAL_UNLOCK(husart);
mbed_official 87:085cde657901 1733
mbed_official 87:085cde657901 1734 return HAL_OK;
mbed_official 87:085cde657901 1735 }
mbed_official 87:085cde657901 1736 else
mbed_official 87:085cde657901 1737 {
mbed_official 87:085cde657901 1738 return HAL_BUSY;
mbed_official 87:085cde657901 1739 }
mbed_official 87:085cde657901 1740 }
mbed_official 87:085cde657901 1741
mbed_official 87:085cde657901 1742 /**
mbed_official 87:085cde657901 1743 * @brief Configures the USART peripheral.
mbed_official 226:b062af740e40 1744 * @param husart: pointer to a USART_HandleTypeDef structure that contains
mbed_official 226:b062af740e40 1745 * the configuration information for the specified USART module.
mbed_official 87:085cde657901 1746 * @retval None
mbed_official 87:085cde657901 1747 */
mbed_official 87:085cde657901 1748 static void USART_SetConfig(USART_HandleTypeDef *husart)
mbed_official 87:085cde657901 1749 {
mbed_official 87:085cde657901 1750 uint32_t tmpreg = 0x00;
mbed_official 87:085cde657901 1751
mbed_official 87:085cde657901 1752 /* Check the parameters */
mbed_official 87:085cde657901 1753 assert_param(IS_USART_INSTANCE(husart->Instance));
mbed_official 87:085cde657901 1754 assert_param(IS_USART_POLARITY(husart->Init.CLKPolarity));
mbed_official 87:085cde657901 1755 assert_param(IS_USART_PHASE(husart->Init.CLKPhase));
mbed_official 87:085cde657901 1756 assert_param(IS_USART_LASTBIT(husart->Init.CLKLastBit));
mbed_official 87:085cde657901 1757 assert_param(IS_USART_BAUDRATE(husart->Init.BaudRate));
mbed_official 87:085cde657901 1758 assert_param(IS_USART_WORD_LENGTH(husart->Init.WordLength));
mbed_official 87:085cde657901 1759 assert_param(IS_USART_STOPBITS(husart->Init.StopBits));
mbed_official 87:085cde657901 1760 assert_param(IS_USART_PARITY(husart->Init.Parity));
mbed_official 87:085cde657901 1761 assert_param(IS_USART_MODE(husart->Init.Mode));
mbed_official 87:085cde657901 1762
mbed_official 87:085cde657901 1763 /* The LBCL, CPOL and CPHA bits have to be selected when both the transmitter and the
mbed_official 87:085cde657901 1764 receiver are disabled (TE=RE=0) to ensure that the clock pulses function correctly. */
mbed_official 87:085cde657901 1765 husart->Instance->CR1 &= (uint32_t)~((uint32_t)(USART_CR1_TE | USART_CR1_RE));
mbed_official 87:085cde657901 1766
mbed_official 87:085cde657901 1767 /*---------------------------- USART CR2 Configuration ---------------------*/
mbed_official 87:085cde657901 1768 tmpreg = husart->Instance->CR2;
mbed_official 87:085cde657901 1769 /* Clear CLKEN, CPOL, CPHA and LBCL bits */
mbed_official 87:085cde657901 1770 tmpreg &= (uint32_t)~((uint32_t)(USART_CR2_CPHA | USART_CR2_CPOL | USART_CR2_CLKEN | USART_CR2_LBCL | USART_CR2_STOP));
mbed_official 87:085cde657901 1771 /* Configure the USART Clock, CPOL, CPHA and LastBit -----------------------*/
mbed_official 87:085cde657901 1772 /* Set CPOL bit according to husart->Init.CLKPolarity value */
mbed_official 87:085cde657901 1773 /* Set CPHA bit according to husart->Init.CLKPhase value */
mbed_official 87:085cde657901 1774 /* Set LBCL bit according to husart->Init.CLKLastBit value */
mbed_official 87:085cde657901 1775 /* Set Stop Bits: Set STOP[13:12] bits according to husart->Init.StopBits value */
mbed_official 87:085cde657901 1776 tmpreg |= (uint32_t)(USART_CLOCK_ENABLED| husart->Init.CLKPolarity |
mbed_official 87:085cde657901 1777 husart->Init.CLKPhase| husart->Init.CLKLastBit | husart->Init.StopBits);
mbed_official 87:085cde657901 1778 /* Write to USART CR2 */
mbed_official 87:085cde657901 1779 husart->Instance->CR2 = (uint32_t)tmpreg;
mbed_official 87:085cde657901 1780
mbed_official 87:085cde657901 1781 /*-------------------------- USART CR1 Configuration -----------------------*/
mbed_official 87:085cde657901 1782 tmpreg = husart->Instance->CR1;
mbed_official 87:085cde657901 1783
mbed_official 87:085cde657901 1784 /* Clear M, PCE, PS, TE and RE bits */
mbed_official 87:085cde657901 1785 tmpreg &= (uint32_t)~((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | \
mbed_official 87:085cde657901 1786 USART_CR1_RE));
mbed_official 87:085cde657901 1787
mbed_official 87:085cde657901 1788 /* Configure the USART Word Length, Parity and mode:
mbed_official 87:085cde657901 1789 Set the M bits according to husart->Init.WordLength value
mbed_official 87:085cde657901 1790 Set PCE and PS bits according to husart->Init.Parity value
mbed_official 87:085cde657901 1791 Set TE and RE bits according to husart->Init.Mode value */
mbed_official 87:085cde657901 1792 tmpreg |= (uint32_t)husart->Init.WordLength | husart->Init.Parity | husart->Init.Mode;
mbed_official 87:085cde657901 1793
mbed_official 87:085cde657901 1794 /* Write to USART CR1 */
mbed_official 87:085cde657901 1795 husart->Instance->CR1 = (uint32_t)tmpreg;
mbed_official 87:085cde657901 1796
mbed_official 87:085cde657901 1797 /*-------------------------- USART CR3 Configuration -----------------------*/
mbed_official 87:085cde657901 1798 /* Clear CTSE and RTSE bits */
mbed_official 87:085cde657901 1799 husart->Instance->CR3 &= (uint32_t)~((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE));
mbed_official 87:085cde657901 1800
mbed_official 87:085cde657901 1801 /*-------------------------- USART BRR Configuration -----------------------*/
mbed_official 87:085cde657901 1802 if((husart->Instance == USART1) || (husart->Instance == USART6))
mbed_official 87:085cde657901 1803 {
mbed_official 87:085cde657901 1804 husart->Instance->BRR = __USART_BRR(HAL_RCC_GetPCLK2Freq(), husart->Init.BaudRate);
mbed_official 87:085cde657901 1805 }
mbed_official 87:085cde657901 1806 else
mbed_official 87:085cde657901 1807 {
mbed_official 87:085cde657901 1808 husart->Instance->BRR = __USART_BRR(HAL_RCC_GetPCLK1Freq(), husart->Init.BaudRate);
mbed_official 87:085cde657901 1809 }
mbed_official 87:085cde657901 1810 }
mbed_official 87:085cde657901 1811
mbed_official 87:085cde657901 1812 /**
mbed_official 87:085cde657901 1813 * @}
mbed_official 87:085cde657901 1814 */
mbed_official 87:085cde657901 1815
mbed_official 87:085cde657901 1816 #endif /* HAL_USART_MODULE_ENABLED */
mbed_official 87:085cde657901 1817 /**
mbed_official 87:085cde657901 1818 * @}
mbed_official 87:085cde657901 1819 */
mbed_official 87:085cde657901 1820
mbed_official 87:085cde657901 1821 /**
mbed_official 87:085cde657901 1822 * @}
mbed_official 87:085cde657901 1823 */
mbed_official 87:085cde657901 1824
mbed_official 87:085cde657901 1825 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/