en 129 / mbed-dev

fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_usart.c@129:2e517c56bcfb, 2016-05-16 (annotated)

Committer:
nameless129
Date:
Mon May 16 16:50:30 2016 +0000
Revision:
129:2e517c56bcfb
Parent:
19:112740acecfa 
PWM Fix:Duty 0%??H???????????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /**
bogdanm 0:9b334a45a8ff 2 ******************************************************************************
bogdanm 0:9b334a45a8ff 3 * @file stm32f4xx_hal_usart.c
bogdanm 0:9b334a45a8ff 4 * @author MCD Application Team
mbed_official 19:112740acecfa 5 * @version V1.4.1
mbed_official 19:112740acecfa 6 * @date 09-October-2015
bogdanm 0:9b334a45a8ff 7 * @brief USART HAL module driver.
bogdanm 0:9b334a45a8ff 8 * This file provides firmware functions to manage the following
bogdanm 0:9b334a45a8ff 9 * functionalities of the Universal Synchronous Asynchronous Receiver Transmitter (USART) peripheral:
bogdanm 0:9b334a45a8ff 10 * + Initialization and de-initialization functions
bogdanm 0:9b334a45a8ff 11 * + IO operation functions
bogdanm 0:9b334a45a8ff 12 * + Peripheral Control functions
bogdanm 0:9b334a45a8ff 13 @verbatim
bogdanm 0:9b334a45a8ff 14 ==============================================================================
bogdanm 0:9b334a45a8ff 15 ##### How to use this driver #####
bogdanm 0:9b334a45a8ff 16 ==============================================================================
bogdanm 0:9b334a45a8ff 17 [..]
bogdanm 0:9b334a45a8ff 18 The USART HAL driver can be used as follows:
bogdanm 0:9b334a45a8ff 19
bogdanm 0:9b334a45a8ff 20 (#) Declare a USART_HandleTypeDef handle structure.
bogdanm 0:9b334a45a8ff 21 (#) Initialize the USART low level resources by implementing the HAL_USART_MspInit () API:
bogdanm 0:9b334a45a8ff 22 (##) Enable the USARTx interface clock.
bogdanm 0:9b334a45a8ff 23 (##) USART pins configuration:
bogdanm 0:9b334a45a8ff 24 (+++) Enable the clock for the USART GPIOs.
bogdanm 0:9b334a45a8ff 25 (+++) Configure these USART pins as alternate function pull-up.
bogdanm 0:9b334a45a8ff 26 (##) NVIC configuration if you need to use interrupt process (HAL_USART_Transmit_IT(),
bogdanm 0:9b334a45a8ff 27 HAL_USART_Receive_IT() and HAL_USART_TransmitReceive_IT() APIs):
bogdanm 0:9b334a45a8ff 28 (+++) Configure the USARTx interrupt priority.
bogdanm 0:9b334a45a8ff 29 (+++) Enable the NVIC USART IRQ handle.
bogdanm 0:9b334a45a8ff 30 (##) DMA Configuration if you need to use DMA process (HAL_USART_Transmit_DMA()
bogdanm 0:9b334a45a8ff 31 HAL_USART_Receive_IT() and HAL_USART_TransmitReceive_IT() APIs):
bogdanm 0:9b334a45a8ff 32 (+++) Declare a DMA handle structure for the Tx/Rx stream.
bogdanm 0:9b334a45a8ff 33 (+++) Enable the DMAx interface clock.
bogdanm 0:9b334a45a8ff 34 (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
bogdanm 0:9b334a45a8ff 35 (+++) Configure the DMA Tx/Rx Stream.
bogdanm 0:9b334a45a8ff 36 (+++) Associate the initialized DMA handle to the USART DMA Tx/Rx handle.
bogdanm 0:9b334a45a8ff 37 (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx/Rx Stream.
bogdanm 0:9b334a45a8ff 38
bogdanm 0:9b334a45a8ff 39 (#) Program the Baud Rate, Word Length, Stop Bit, Parity, Hardware
bogdanm 0:9b334a45a8ff 40 flow control and Mode(Receiver/Transmitter) in the husart Init structure.
bogdanm 0:9b334a45a8ff 41
bogdanm 0:9b334a45a8ff 42 (#) Initialize the USART registers by calling the HAL_USART_Init() API:
bogdanm 0:9b334a45a8ff 43 (++) These APIs configures also the low level Hardware GPIO, CLOCK, CORTEX...etc)
bogdanm 0:9b334a45a8ff 44 by calling the customized HAL_USART_MspInit(&husart) API.
bogdanm 0:9b334a45a8ff 45
bogdanm 0:9b334a45a8ff 46 -@@- The specific USART interrupts (Transmission complete interrupt,
bogdanm 0:9b334a45a8ff 47 RXNE interrupt and Error Interrupts) will be managed using the macros
bogdanm 0:9b334a45a8ff 48 __HAL_USART_ENABLE_IT() and __HAL_USART_DISABLE_IT() inside the transmit and receive process.
bogdanm 0:9b334a45a8ff 49
bogdanm 0:9b334a45a8ff 50 (#) Three operation modes are available within this driver :
bogdanm 0:9b334a45a8ff 51
bogdanm 0:9b334a45a8ff 52 *** Polling mode IO operation ***
bogdanm 0:9b334a45a8ff 53 =================================
bogdanm 0:9b334a45a8ff 54 [..]
bogdanm 0:9b334a45a8ff 55 (+) Send an amount of data in blocking mode using HAL_USART_Transmit()
bogdanm 0:9b334a45a8ff 56 (+) Receive an amount of data in blocking mode using HAL_USART_Receive()
bogdanm 0:9b334a45a8ff 57
bogdanm 0:9b334a45a8ff 58 *** Interrupt mode IO operation ***
bogdanm 0:9b334a45a8ff 59 ===================================
bogdanm 0:9b334a45a8ff 60 [..]
bogdanm 0:9b334a45a8ff 61 (+) Send an amount of data in non blocking mode using HAL_USART_Transmit_IT()
bogdanm 0:9b334a45a8ff 62 (+) At transmission end of transfer HAL_USART_TxHalfCpltCallback is executed and user can
bogdanm 0:9b334a45a8ff 63 add his own code by customization of function pointer HAL_USART_TxCpltCallback
bogdanm 0:9b334a45a8ff 64 (+) Receive an amount of data in non blocking mode using HAL_USART_Receive_IT()
bogdanm 0:9b334a45a8ff 65 (+) At reception end of transfer HAL_USART_RxCpltCallback is executed and user can
bogdanm 0:9b334a45a8ff 66 add his own code by customization of function pointer HAL_UART_RxCpltCallback
bogdanm 0:9b334a45a8ff 67 (+) In case of transfer Error, HAL_USART_ErrorCallback() function is executed and user can
bogdanm 0:9b334a45a8ff 68 add his own code by customization of function pointer HAL_USART_ErrorCallback
bogdanm 0:9b334a45a8ff 69
bogdanm 0:9b334a45a8ff 70 *** DMA mode IO operation ***
bogdanm 0:9b334a45a8ff 71 ==============================
bogdanm 0:9b334a45a8ff 72 [..]
bogdanm 0:9b334a45a8ff 73 (+) Send an amount of data in non blocking mode (DMA) using HAL_USART_Transmit_DMA()
bogdanm 0:9b334a45a8ff 74 (+) At transmission end of half transfer HAL_USART_TxHalfCpltCallback is executed and user can
bogdanm 0:9b334a45a8ff 75 add his own code by customization of function pointer HAL_USART_TxHalfCpltCallback
bogdanm 0:9b334a45a8ff 76 (+) At transmission end of transfer HAL_USART_TxCpltCallback is executed and user can
bogdanm 0:9b334a45a8ff 77 add his own code by customization of function pointer HAL_USART_TxCpltCallback
bogdanm 0:9b334a45a8ff 78 (+) Receive an amount of data in non blocking mode (DMA) using HAL_USART_Receive_DMA()
bogdanm 0:9b334a45a8ff 79 (+) At reception end of half transfer HAL_USART_RxHalfCpltCallback is executed and user can
bogdanm 0:9b334a45a8ff 80 add his own code by customization of function pointer HAL_USART_RxHalfCpltCallback
bogdanm 0:9b334a45a8ff 81 (+) At reception end of transfer HAL_USART_RxCpltCallback is executed and user can
bogdanm 0:9b334a45a8ff 82 add his own code by customization of function pointer HAL_USART_RxCpltCallback
bogdanm 0:9b334a45a8ff 83 (+) In case of transfer Error, HAL_USART_ErrorCallback() function is executed and user can
bogdanm 0:9b334a45a8ff 84 add his own code by customization of function pointer HAL_USART_ErrorCallback
bogdanm 0:9b334a45a8ff 85 (+) Pause the DMA Transfer using HAL_USART_DMAPause()
bogdanm 0:9b334a45a8ff 86 (+) Resume the DMA Transfer using HAL_USART_DMAResume()
bogdanm 0:9b334a45a8ff 87 (+) Stop the DMA Transfer using HAL_USART_DMAStop()
bogdanm 0:9b334a45a8ff 88
bogdanm 0:9b334a45a8ff 89 *** USART HAL driver macros list ***
bogdanm 0:9b334a45a8ff 90 =============================================
bogdanm 0:9b334a45a8ff 91 [..]
bogdanm 0:9b334a45a8ff 92 Below the list of most used macros in USART HAL driver.
bogdanm 0:9b334a45a8ff 93
bogdanm 0:9b334a45a8ff 94 (+) __HAL_USART_ENABLE: Enable the USART peripheral
bogdanm 0:9b334a45a8ff 95 (+) __HAL_USART_DISABLE: Disable the USART peripheral
bogdanm 0:9b334a45a8ff 96 (+) __HAL_USART_GET_FLAG : Check whether the specified USART flag is set or not
bogdanm 0:9b334a45a8ff 97 (+) __HAL_USART_CLEAR_FLAG : Clear the specified USART pending flag
bogdanm 0:9b334a45a8ff 98 (+) __HAL_USART_ENABLE_IT: Enable the specified USART interrupt
bogdanm 0:9b334a45a8ff 99 (+) __HAL_USART_DISABLE_IT: Disable the specified USART interrupt
bogdanm 0:9b334a45a8ff 100
bogdanm 0:9b334a45a8ff 101 [..]
bogdanm 0:9b334a45a8ff 102 (@) You can refer to the USART HAL driver header file for more useful macros
bogdanm 0:9b334a45a8ff 103
bogdanm 0:9b334a45a8ff 104 @endverbatim
bogdanm 0:9b334a45a8ff 105 ******************************************************************************
bogdanm 0:9b334a45a8ff 106 * @attention
bogdanm 0:9b334a45a8ff 107 *
bogdanm 0:9b334a45a8ff 108 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
bogdanm 0:9b334a45a8ff 109 *
bogdanm 0:9b334a45a8ff 110 * Redistribution and use in source and binary forms, with or without modification,
bogdanm 0:9b334a45a8ff 111 * are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 112 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 113 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 114 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 115 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 116 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 117 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 118 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 119 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 120 *
bogdanm 0:9b334a45a8ff 121 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 122 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 123 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 124 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 125 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 126 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 127 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 128 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 129 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 130 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 131 *
bogdanm 0:9b334a45a8ff 132 ******************************************************************************
bogdanm 0:9b334a45a8ff 133 */
bogdanm 0:9b334a45a8ff 134
bogdanm 0:9b334a45a8ff 135 /* Includes ------------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 136 #include "stm32f4xx_hal.h"
bogdanm 0:9b334a45a8ff 137
bogdanm 0:9b334a45a8ff 138 /** @addtogroup STM32F4xx_HAL_Driver
bogdanm 0:9b334a45a8ff 139 * @{
bogdanm 0:9b334a45a8ff 140 */
bogdanm 0:9b334a45a8ff 141
bogdanm 0:9b334a45a8ff 142 /** @defgroup USART USART
bogdanm 0:9b334a45a8ff 143 * @brief HAL USART Synchronous module driver
bogdanm 0:9b334a45a8ff 144 * @{
bogdanm 0:9b334a45a8ff 145 */
bogdanm 0:9b334a45a8ff 146 #ifdef HAL_USART_MODULE_ENABLED
bogdanm 0:9b334a45a8ff 147 /* Private typedef -----------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 148 /* Private define ------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 149 /** @addtogroup USART_Private_Constants
bogdanm 0:9b334a45a8ff 150 * @{
bogdanm 0:9b334a45a8ff 151 */
bogdanm 0:9b334a45a8ff 152 #define DUMMY_DATA 0xFFFF
bogdanm 0:9b334a45a8ff 153 #define USART_TIMEOUT_VALUE 22000
bogdanm 0:9b334a45a8ff 154 /**
bogdanm 0:9b334a45a8ff 155 * @}
bogdanm 0:9b334a45a8ff 156 */
bogdanm 0:9b334a45a8ff 157 /* Private macro -------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 158 /* Private variables ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 159 /* Private function prototypes -----------------------------------------------*/
bogdanm 0:9b334a45a8ff 160 /* Private functions ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 161 /** @addtogroup USART_Private_Functions
bogdanm 0:9b334a45a8ff 162 * @{
bogdanm 0:9b334a45a8ff 163 */
bogdanm 0:9b334a45a8ff 164 static HAL_StatusTypeDef USART_Transmit_IT(USART_HandleTypeDef *husart);
bogdanm 0:9b334a45a8ff 165 static HAL_StatusTypeDef USART_EndTransmit_IT(USART_HandleTypeDef *husart);
bogdanm 0:9b334a45a8ff 166 static HAL_StatusTypeDef USART_Receive_IT(USART_HandleTypeDef *husart);
bogdanm 0:9b334a45a8ff 167 static HAL_StatusTypeDef USART_TransmitReceive_IT(USART_HandleTypeDef *husart);
bogdanm 0:9b334a45a8ff 168 static void USART_SetConfig (USART_HandleTypeDef *husart);
bogdanm 0:9b334a45a8ff 169 static void USART_DMATransmitCplt(DMA_HandleTypeDef *hdma);
bogdanm 0:9b334a45a8ff 170 static void USART_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
bogdanm 0:9b334a45a8ff 171 static void USART_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
bogdanm 0:9b334a45a8ff 172 static void USART_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
bogdanm 0:9b334a45a8ff 173 static void USART_DMAError(DMA_HandleTypeDef *hdma);
bogdanm 0:9b334a45a8ff 174 static HAL_StatusTypeDef USART_WaitOnFlagUntilTimeout(USART_HandleTypeDef *husart, uint32_t Flag, FlagStatus Status, uint32_t Timeout);
bogdanm 0:9b334a45a8ff 175 /**
bogdanm 0:9b334a45a8ff 176 * @}
bogdanm 0:9b334a45a8ff 177 */
bogdanm 0:9b334a45a8ff 178
bogdanm 0:9b334a45a8ff 179 /* Exported functions --------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 180 /** @defgroup USART_Exported_Functions USART Exported Functions
bogdanm 0:9b334a45a8ff 181 * @{
bogdanm 0:9b334a45a8ff 182 */
bogdanm 0:9b334a45a8ff 183
bogdanm 0:9b334a45a8ff 184 /** @defgroup USART_Exported_Functions_Group1 USART Initialization and de-initialization functions
bogdanm 0:9b334a45a8ff 185 * @brief Initialization and Configuration functions
bogdanm 0:9b334a45a8ff 186 *
bogdanm 0:9b334a45a8ff 187 @verbatim
bogdanm 0:9b334a45a8ff 188 ==============================================================================
bogdanm 0:9b334a45a8ff 189 ##### Initialization and Configuration functions #####
bogdanm 0:9b334a45a8ff 190 ==============================================================================
bogdanm 0:9b334a45a8ff 191 [..]
bogdanm 0:9b334a45a8ff 192 This subsection provides a set of functions allowing to initialize the USART
bogdanm 0:9b334a45a8ff 193 in asynchronous and in synchronous modes.
bogdanm 0:9b334a45a8ff 194 (+) For the asynchronous mode only these parameters can be configured:
bogdanm 0:9b334a45a8ff 195 (++) Baud Rate
bogdanm 0:9b334a45a8ff 196 (++) Word Length
bogdanm 0:9b334a45a8ff 197 (++) Stop Bit
bogdanm 0:9b334a45a8ff 198 (++) Parity: If the parity is enabled, then the MSB bit of the data written
bogdanm 0:9b334a45a8ff 199 in the data register is transmitted but is changed by the parity bit.
bogdanm 0:9b334a45a8ff 200 Depending on the frame length defined by the M bit (8-bits or 9-bits),
bogdanm 0:9b334a45a8ff 201 please refer to Reference manual for possible USART frame formats.
bogdanm 0:9b334a45a8ff 202 (++) USART polarity
bogdanm 0:9b334a45a8ff 203 (++) USART phase
bogdanm 0:9b334a45a8ff 204 (++) USART LastBit
bogdanm 0:9b334a45a8ff 205 (++) Receiver/transmitter modes
bogdanm 0:9b334a45a8ff 206
bogdanm 0:9b334a45a8ff 207 [..]
bogdanm 0:9b334a45a8ff 208 The HAL_USART_Init() function follows the USART synchronous configuration
bogdanm 0:9b334a45a8ff 209 procedure (details for the procedure are available in reference manual (RM0329)).
bogdanm 0:9b334a45a8ff 210
bogdanm 0:9b334a45a8ff 211 @endverbatim
bogdanm 0:9b334a45a8ff 212 * @{
bogdanm 0:9b334a45a8ff 213 */
bogdanm 0:9b334a45a8ff 214
bogdanm 0:9b334a45a8ff 215 /**
bogdanm 0:9b334a45a8ff 216 * @brief Initializes the USART mode according to the specified
bogdanm 0:9b334a45a8ff 217 * parameters in the USART_InitTypeDef and create the associated handle.
bogdanm 0:9b334a45a8ff 218 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 219 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 220 * @retval HAL status
bogdanm 0:9b334a45a8ff 221 */
bogdanm 0:9b334a45a8ff 222 HAL_StatusTypeDef HAL_USART_Init(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 223 {
bogdanm 0:9b334a45a8ff 224 /* Check the USART handle allocation */
bogdanm 0:9b334a45a8ff 225 if(husart == NULL)
bogdanm 0:9b334a45a8ff 226 {
bogdanm 0:9b334a45a8ff 227 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 228 }
bogdanm 0:9b334a45a8ff 229
bogdanm 0:9b334a45a8ff 230 /* Check the parameters */
bogdanm 0:9b334a45a8ff 231 assert_param(IS_USART_INSTANCE(husart->Instance));
bogdanm 0:9b334a45a8ff 232
bogdanm 0:9b334a45a8ff 233 if(husart->State == HAL_USART_STATE_RESET)
bogdanm 0:9b334a45a8ff 234 {
bogdanm 0:9b334a45a8ff 235 /* Allocate lock resource and initialize it */
bogdanm 0:9b334a45a8ff 236 husart->Lock = HAL_UNLOCKED;
bogdanm 0:9b334a45a8ff 237 /* Init the low level hardware */
bogdanm 0:9b334a45a8ff 238 HAL_USART_MspInit(husart);
bogdanm 0:9b334a45a8ff 239 }
bogdanm 0:9b334a45a8ff 240
bogdanm 0:9b334a45a8ff 241 husart->State = HAL_USART_STATE_BUSY;
bogdanm 0:9b334a45a8ff 242
bogdanm 0:9b334a45a8ff 243 /* Set the USART Communication parameters */
bogdanm 0:9b334a45a8ff 244 USART_SetConfig(husart);
bogdanm 0:9b334a45a8ff 245
bogdanm 0:9b334a45a8ff 246 /* In USART mode, the following bits must be kept cleared:
bogdanm 0:9b334a45a8ff 247 - LINEN bit in the USART_CR2 register
bogdanm 0:9b334a45a8ff 248 - HDSEL, SCEN and IREN bits in the USART_CR3 register */
bogdanm 0:9b334a45a8ff 249 husart->Instance->CR2 &= ~USART_CR2_LINEN;
bogdanm 0:9b334a45a8ff 250 husart->Instance->CR3 &= ~(USART_CR3_IREN | USART_CR3_SCEN | USART_CR3_HDSEL);
bogdanm 0:9b334a45a8ff 251
bogdanm 0:9b334a45a8ff 252 /* Enable the Peripheral */
bogdanm 0:9b334a45a8ff 253 __HAL_USART_ENABLE(husart);
bogdanm 0:9b334a45a8ff 254
bogdanm 0:9b334a45a8ff 255 /* Initialize the USART state */
bogdanm 0:9b334a45a8ff 256 husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm 0:9b334a45a8ff 257 husart->State= HAL_USART_STATE_READY;
bogdanm 0:9b334a45a8ff 258
bogdanm 0:9b334a45a8ff 259 return HAL_OK;
bogdanm 0:9b334a45a8ff 260 }
bogdanm 0:9b334a45a8ff 261
bogdanm 0:9b334a45a8ff 262 /**
bogdanm 0:9b334a45a8ff 263 * @brief DeInitializes the USART peripheral.
bogdanm 0:9b334a45a8ff 264 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 265 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 266 * @retval HAL status
bogdanm 0:9b334a45a8ff 267 */
bogdanm 0:9b334a45a8ff 268 HAL_StatusTypeDef HAL_USART_DeInit(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 269 {
bogdanm 0:9b334a45a8ff 270 /* Check the USART handle allocation */
bogdanm 0:9b334a45a8ff 271 if(husart == NULL)
bogdanm 0:9b334a45a8ff 272 {
bogdanm 0:9b334a45a8ff 273 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 274 }
bogdanm 0:9b334a45a8ff 275
bogdanm 0:9b334a45a8ff 276 /* Check the parameters */
bogdanm 0:9b334a45a8ff 277 assert_param(IS_USART_INSTANCE(husart->Instance));
bogdanm 0:9b334a45a8ff 278
bogdanm 0:9b334a45a8ff 279 husart->State = HAL_USART_STATE_BUSY;
bogdanm 0:9b334a45a8ff 280
bogdanm 0:9b334a45a8ff 281 /* Disable the Peripheral */
bogdanm 0:9b334a45a8ff 282 __HAL_USART_DISABLE(husart);
bogdanm 0:9b334a45a8ff 283
bogdanm 0:9b334a45a8ff 284 /* DeInit the low level hardware */
bogdanm 0:9b334a45a8ff 285 HAL_USART_MspDeInit(husart);
bogdanm 0:9b334a45a8ff 286
bogdanm 0:9b334a45a8ff 287 husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm 0:9b334a45a8ff 288 husart->State = HAL_USART_STATE_RESET;
bogdanm 0:9b334a45a8ff 289
bogdanm 0:9b334a45a8ff 290 /* Release Lock */
bogdanm 0:9b334a45a8ff 291 __HAL_UNLOCK(husart);
bogdanm 0:9b334a45a8ff 292
bogdanm 0:9b334a45a8ff 293 return HAL_OK;
bogdanm 0:9b334a45a8ff 294 }
bogdanm 0:9b334a45a8ff 295
bogdanm 0:9b334a45a8ff 296 /**
bogdanm 0:9b334a45a8ff 297 * @brief USART MSP Init.
bogdanm 0:9b334a45a8ff 298 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 299 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 300 * @retval None
bogdanm 0:9b334a45a8ff 301 */
bogdanm 0:9b334a45a8ff 302 __weak void HAL_USART_MspInit(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 303 {
bogdanm 0:9b334a45a8ff 304 /* NOTE: This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 305 the HAL_USART_MspInit could be implemented in the user file
bogdanm 0:9b334a45a8ff 306 */
bogdanm 0:9b334a45a8ff 307 }
bogdanm 0:9b334a45a8ff 308
bogdanm 0:9b334a45a8ff 309 /**
bogdanm 0:9b334a45a8ff 310 * @brief USART MSP DeInit.
bogdanm 0:9b334a45a8ff 311 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 312 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 313 * @retval None
bogdanm 0:9b334a45a8ff 314 */
bogdanm 0:9b334a45a8ff 315 __weak void HAL_USART_MspDeInit(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 316 {
bogdanm 0:9b334a45a8ff 317 /* NOTE: This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 318 the HAL_USART_MspDeInit could be implemented in the user file
bogdanm 0:9b334a45a8ff 319 */
bogdanm 0:9b334a45a8ff 320 }
bogdanm 0:9b334a45a8ff 321
bogdanm 0:9b334a45a8ff 322 /**
bogdanm 0:9b334a45a8ff 323 * @}
bogdanm 0:9b334a45a8ff 324 */
bogdanm 0:9b334a45a8ff 325
bogdanm 0:9b334a45a8ff 326 /** @defgroup USART_Exported_Functions_Group2 IO operation functions
bogdanm 0:9b334a45a8ff 327 * @brief USART Transmit and Receive functions
bogdanm 0:9b334a45a8ff 328 *
bogdanm 0:9b334a45a8ff 329 @verbatim
bogdanm 0:9b334a45a8ff 330 ==============================================================================
bogdanm 0:9b334a45a8ff 331 ##### IO operation functions #####
bogdanm 0:9b334a45a8ff 332 ==============================================================================
bogdanm 0:9b334a45a8ff 333 [..]
bogdanm 0:9b334a45a8ff 334 This subsection provides a set of functions allowing to manage the USART synchronous
bogdanm 0:9b334a45a8ff 335 data transfers.
bogdanm 0:9b334a45a8ff 336
bogdanm 0:9b334a45a8ff 337 [..]
bogdanm 0:9b334a45a8ff 338 The USART supports master mode only: it cannot receive or send data related to an input
bogdanm 0:9b334a45a8ff 339 clock (SCLK is always an output).
bogdanm 0:9b334a45a8ff 340
bogdanm 0:9b334a45a8ff 341 (#) There are two modes of transfer:
bogdanm 0:9b334a45a8ff 342 (++) Blocking mode: The communication is performed in polling mode.
bogdanm 0:9b334a45a8ff 343 The HAL status of all data processing is returned by the same function
bogdanm 0:9b334a45a8ff 344 after finishing transfer.
bogdanm 0:9b334a45a8ff 345 (++) No-Blocking mode: The communication is performed using Interrupts
bogdanm 0:9b334a45a8ff 346 or DMA, These API's return the HAL status.
bogdanm 0:9b334a45a8ff 347 The end of the data processing will be indicated through the
bogdanm 0:9b334a45a8ff 348 dedicated USART IRQ when using Interrupt mode or the DMA IRQ when
bogdanm 0:9b334a45a8ff 349 using DMA mode.
bogdanm 0:9b334a45a8ff 350 The HAL_USART_TxCpltCallback(), HAL_USART_RxCpltCallback() and HAL_USART_TxRxCpltCallback()
bogdanm 0:9b334a45a8ff 351 user callbacks
bogdanm 0:9b334a45a8ff 352 will be executed respectively at the end of the transmit or Receive process
bogdanm 0:9b334a45a8ff 353 The HAL_USART_ErrorCallback() user callback will be executed when a communication
bogdanm 0:9b334a45a8ff 354 error is detected
bogdanm 0:9b334a45a8ff 355
bogdanm 0:9b334a45a8ff 356 (#) Blocking mode APIs are :
bogdanm 0:9b334a45a8ff 357 (++) HAL_USART_Transmit() in simplex mode
bogdanm 0:9b334a45a8ff 358 (++) HAL_USART_Receive() in full duplex receive only
bogdanm 0:9b334a45a8ff 359 (++) HAL_USART_TransmitReceive() in full duplex mode
bogdanm 0:9b334a45a8ff 360
bogdanm 0:9b334a45a8ff 361 (#) Non Blocking mode APIs with Interrupt are :
bogdanm 0:9b334a45a8ff 362 (++) HAL_USART_Transmit_IT()in simplex mode
bogdanm 0:9b334a45a8ff 363 (++) HAL_USART_Receive_IT() in full duplex receive only
bogdanm 0:9b334a45a8ff 364 (++) HAL_USART_TransmitReceive_IT() in full duplex mode
bogdanm 0:9b334a45a8ff 365 (++) HAL_USART_IRQHandler()
bogdanm 0:9b334a45a8ff 366
bogdanm 0:9b334a45a8ff 367 (#) Non Blocking mode functions with DMA are :
bogdanm 0:9b334a45a8ff 368 (++) HAL_USART_Transmit_DMA()in simplex mode
bogdanm 0:9b334a45a8ff 369 (++) HAL_USART_Receive_DMA() in full duplex receive only
bogdanm 0:9b334a45a8ff 370 (++) HAL_USART_TransmitReceie_DMA() in full duplex mode
bogdanm 0:9b334a45a8ff 371 (++) HAL_USART_DMAPause()
bogdanm 0:9b334a45a8ff 372 (++) HAL_USART_DMAResume()
bogdanm 0:9b334a45a8ff 373 (++) HAL_USART_DMAStop()
bogdanm 0:9b334a45a8ff 374
bogdanm 0:9b334a45a8ff 375 (#) A set of Transfer Complete Callbacks are provided in non Blocking mode:
bogdanm 0:9b334a45a8ff 376 (++) HAL_USART_TxHalfCpltCallback()
bogdanm 0:9b334a45a8ff 377 (++) HAL_USART_TxCpltCallback()
bogdanm 0:9b334a45a8ff 378 (++) HAL_USART_RxHalfCpltCallback()
bogdanm 0:9b334a45a8ff 379 (++) HAL_USART_RxCpltCallback()
bogdanm 0:9b334a45a8ff 380 (++) HAL_USART_ErrorCallback()
bogdanm 0:9b334a45a8ff 381 (++) HAL_USART_TxRxCpltCallback()
bogdanm 0:9b334a45a8ff 382
bogdanm 0:9b334a45a8ff 383 @endverbatim
bogdanm 0:9b334a45a8ff 384 * @{
bogdanm 0:9b334a45a8ff 385 */
bogdanm 0:9b334a45a8ff 386
bogdanm 0:9b334a45a8ff 387 /**
bogdanm 0:9b334a45a8ff 388 * @brief Simplex Send an amount of data in blocking mode.
bogdanm 0:9b334a45a8ff 389 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 390 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 391 * @param pTxData: Pointer to data buffer
bogdanm 0:9b334a45a8ff 392 * @param Size: Amount of data to be sent
bogdanm 0:9b334a45a8ff 393 * @param Timeout: Timeout duration
bogdanm 0:9b334a45a8ff 394 * @retval HAL status
bogdanm 0:9b334a45a8ff 395 */
bogdanm 0:9b334a45a8ff 396 HAL_StatusTypeDef HAL_USART_Transmit(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size, uint32_t Timeout)
bogdanm 0:9b334a45a8ff 397 {
bogdanm 0:9b334a45a8ff 398 uint16_t* tmp;
bogdanm 0:9b334a45a8ff 399
bogdanm 0:9b334a45a8ff 400 if(husart->State == HAL_USART_STATE_READY)
bogdanm 0:9b334a45a8ff 401 {
bogdanm 0:9b334a45a8ff 402 if((pTxData == NULL) || (Size == 0))
bogdanm 0:9b334a45a8ff 403 {
bogdanm 0:9b334a45a8ff 404 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 405 }
bogdanm 0:9b334a45a8ff 406
bogdanm 0:9b334a45a8ff 407 /* Process Locked */
bogdanm 0:9b334a45a8ff 408 __HAL_LOCK(husart);
bogdanm 0:9b334a45a8ff 409
bogdanm 0:9b334a45a8ff 410 husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm 0:9b334a45a8ff 411 husart->State = HAL_USART_STATE_BUSY_TX;
bogdanm 0:9b334a45a8ff 412
bogdanm 0:9b334a45a8ff 413 husart->TxXferSize = Size;
bogdanm 0:9b334a45a8ff 414 husart->TxXferCount = Size;
bogdanm 0:9b334a45a8ff 415 while(husart->TxXferCount > 0)
bogdanm 0:9b334a45a8ff 416 {
bogdanm 0:9b334a45a8ff 417 husart->TxXferCount--;
bogdanm 0:9b334a45a8ff 418 if(husart->Init.WordLength == USART_WORDLENGTH_9B)
bogdanm 0:9b334a45a8ff 419 {
bogdanm 0:9b334a45a8ff 420 /* Wait for TC flag in order to write data in DR */
bogdanm 0:9b334a45a8ff 421 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, Timeout) != HAL_OK)
bogdanm 0:9b334a45a8ff 422 {
bogdanm 0:9b334a45a8ff 423 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 424 }
bogdanm 0:9b334a45a8ff 425 tmp = (uint16_t*) pTxData;
bogdanm 0:9b334a45a8ff 426 husart->Instance->DR = (*tmp & (uint16_t)0x01FF);
bogdanm 0:9b334a45a8ff 427 if(husart->Init.Parity == USART_PARITY_NONE)
bogdanm 0:9b334a45a8ff 428 {
bogdanm 0:9b334a45a8ff 429 pTxData += 2;
bogdanm 0:9b334a45a8ff 430 }
bogdanm 0:9b334a45a8ff 431 else
bogdanm 0:9b334a45a8ff 432 {
bogdanm 0:9b334a45a8ff 433 pTxData += 1;
bogdanm 0:9b334a45a8ff 434 }
bogdanm 0:9b334a45a8ff 435 }
bogdanm 0:9b334a45a8ff 436 else
bogdanm 0:9b334a45a8ff 437 {
bogdanm 0:9b334a45a8ff 438 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, Timeout) != HAL_OK)
bogdanm 0:9b334a45a8ff 439 {
bogdanm 0:9b334a45a8ff 440 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 441 }
bogdanm 0:9b334a45a8ff 442 husart->Instance->DR = (*pTxData++ & (uint8_t)0xFF);
bogdanm 0:9b334a45a8ff 443 }
bogdanm 0:9b334a45a8ff 444 }
bogdanm 0:9b334a45a8ff 445
bogdanm 0:9b334a45a8ff 446 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK)
bogdanm 0:9b334a45a8ff 447 {
bogdanm 0:9b334a45a8ff 448 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 449 }
bogdanm 0:9b334a45a8ff 450
bogdanm 0:9b334a45a8ff 451 husart->State = HAL_USART_STATE_READY;
bogdanm 0:9b334a45a8ff 452
bogdanm 0:9b334a45a8ff 453 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 454 __HAL_UNLOCK(husart);
bogdanm 0:9b334a45a8ff 455
bogdanm 0:9b334a45a8ff 456 return HAL_OK;
bogdanm 0:9b334a45a8ff 457 }
bogdanm 0:9b334a45a8ff 458 else
bogdanm 0:9b334a45a8ff 459 {
bogdanm 0:9b334a45a8ff 460 return HAL_BUSY;
bogdanm 0:9b334a45a8ff 461 }
bogdanm 0:9b334a45a8ff 462 }
bogdanm 0:9b334a45a8ff 463
bogdanm 0:9b334a45a8ff 464 /**
bogdanm 0:9b334a45a8ff 465 * @brief Full-Duplex Receive an amount of data in blocking mode.
bogdanm 0:9b334a45a8ff 466 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 467 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 468 * @param pRxData: Pointer to data buffer
bogdanm 0:9b334a45a8ff 469 * @param Size: Amount of data to be received
bogdanm 0:9b334a45a8ff 470 * @param Timeout: Timeout duration
bogdanm 0:9b334a45a8ff 471 * @retval HAL status
bogdanm 0:9b334a45a8ff 472 */
bogdanm 0:9b334a45a8ff 473 HAL_StatusTypeDef HAL_USART_Receive(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size, uint32_t Timeout)
bogdanm 0:9b334a45a8ff 474 {
bogdanm 0:9b334a45a8ff 475 uint16_t* tmp;
bogdanm 0:9b334a45a8ff 476
bogdanm 0:9b334a45a8ff 477 if(husart->State == HAL_USART_STATE_READY)
bogdanm 0:9b334a45a8ff 478 {
bogdanm 0:9b334a45a8ff 479 if((pRxData == NULL) || (Size == 0))
bogdanm 0:9b334a45a8ff 480 {
bogdanm 0:9b334a45a8ff 481 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 482 }
bogdanm 0:9b334a45a8ff 483 /* Process Locked */
bogdanm 0:9b334a45a8ff 484 __HAL_LOCK(husart);
bogdanm 0:9b334a45a8ff 485
bogdanm 0:9b334a45a8ff 486 husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm 0:9b334a45a8ff 487 husart->State = HAL_USART_STATE_BUSY_RX;
bogdanm 0:9b334a45a8ff 488
bogdanm 0:9b334a45a8ff 489 husart->RxXferSize = Size;
bogdanm 0:9b334a45a8ff 490 husart->RxXferCount = Size;
bogdanm 0:9b334a45a8ff 491 /* Check the remain data to be received */
bogdanm 0:9b334a45a8ff 492 while(husart->RxXferCount > 0)
bogdanm 0:9b334a45a8ff 493 {
bogdanm 0:9b334a45a8ff 494 husart->RxXferCount--;
bogdanm 0:9b334a45a8ff 495 if(husart->Init.WordLength == USART_WORDLENGTH_9B)
bogdanm 0:9b334a45a8ff 496 {
bogdanm 0:9b334a45a8ff 497 /* Wait until TXE flag is set to send dummy byte in order to generate the clock for the slave to send data */
bogdanm 0:9b334a45a8ff 498 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, Timeout) != HAL_OK)
bogdanm 0:9b334a45a8ff 499 {
bogdanm 0:9b334a45a8ff 500 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 501 }
bogdanm 0:9b334a45a8ff 502 /* Send dummy byte in order to generate clock */
bogdanm 0:9b334a45a8ff 503 husart->Instance->DR = (DUMMY_DATA & (uint16_t)0x01FF);
bogdanm 0:9b334a45a8ff 504
bogdanm 0:9b334a45a8ff 505 /* Wait for RXNE Flag */
bogdanm 0:9b334a45a8ff 506 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
bogdanm 0:9b334a45a8ff 507 {
bogdanm 0:9b334a45a8ff 508 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 509 }
bogdanm 0:9b334a45a8ff 510 tmp = (uint16_t*) pRxData ;
bogdanm 0:9b334a45a8ff 511 if(husart->Init.Parity == USART_PARITY_NONE)
bogdanm 0:9b334a45a8ff 512 {
bogdanm 0:9b334a45a8ff 513 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x01FF);
bogdanm 0:9b334a45a8ff 514 pRxData +=2;
bogdanm 0:9b334a45a8ff 515 }
bogdanm 0:9b334a45a8ff 516 else
bogdanm 0:9b334a45a8ff 517 {
bogdanm 0:9b334a45a8ff 518 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x00FF);
bogdanm 0:9b334a45a8ff 519 pRxData +=1;
bogdanm 0:9b334a45a8ff 520 }
bogdanm 0:9b334a45a8ff 521 }
bogdanm 0:9b334a45a8ff 522 else
bogdanm 0:9b334a45a8ff 523 {
bogdanm 0:9b334a45a8ff 524 /* Wait until TXE flag is set to send dummy byte in order to generate the clock for the slave to send data */
bogdanm 0:9b334a45a8ff 525 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, Timeout) != HAL_OK)
bogdanm 0:9b334a45a8ff 526 {
bogdanm 0:9b334a45a8ff 527 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 528 }
bogdanm 0:9b334a45a8ff 529
bogdanm 0:9b334a45a8ff 530 /* Send Dummy Byte in order to generate clock */
bogdanm 0:9b334a45a8ff 531 husart->Instance->DR = (DUMMY_DATA & (uint16_t)0x00FF);
bogdanm 0:9b334a45a8ff 532
bogdanm 0:9b334a45a8ff 533 /* Wait until RXNE flag is set to receive the byte */
bogdanm 0:9b334a45a8ff 534 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
bogdanm 0:9b334a45a8ff 535 {
bogdanm 0:9b334a45a8ff 536 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 537 }
bogdanm 0:9b334a45a8ff 538 if(husart->Init.Parity == USART_PARITY_NONE)
bogdanm 0:9b334a45a8ff 539 {
bogdanm 0:9b334a45a8ff 540 /* Receive data */
bogdanm 0:9b334a45a8ff 541 *pRxData++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x00FF);
bogdanm 0:9b334a45a8ff 542 }
bogdanm 0:9b334a45a8ff 543 else
bogdanm 0:9b334a45a8ff 544 {
bogdanm 0:9b334a45a8ff 545 /* Receive data */
bogdanm 0:9b334a45a8ff 546 *pRxData++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x007F);
bogdanm 0:9b334a45a8ff 547 }
bogdanm 0:9b334a45a8ff 548
bogdanm 0:9b334a45a8ff 549 }
bogdanm 0:9b334a45a8ff 550 }
bogdanm 0:9b334a45a8ff 551
bogdanm 0:9b334a45a8ff 552 husart->State = HAL_USART_STATE_READY;
bogdanm 0:9b334a45a8ff 553
bogdanm 0:9b334a45a8ff 554 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 555 __HAL_UNLOCK(husart);
bogdanm 0:9b334a45a8ff 556
bogdanm 0:9b334a45a8ff 557 return HAL_OK;
bogdanm 0:9b334a45a8ff 558 }
bogdanm 0:9b334a45a8ff 559 else
bogdanm 0:9b334a45a8ff 560 {
bogdanm 0:9b334a45a8ff 561 return HAL_BUSY;
bogdanm 0:9b334a45a8ff 562 }
bogdanm 0:9b334a45a8ff 563 }
bogdanm 0:9b334a45a8ff 564
bogdanm 0:9b334a45a8ff 565 /**
bogdanm 0:9b334a45a8ff 566 * @brief Full-Duplex Send receive an amount of data in full-duplex mode (blocking mode).
bogdanm 0:9b334a45a8ff 567 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 568 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 569 * @param pTxData: Pointer to data transmitted buffer
bogdanm 0:9b334a45a8ff 570 * @param pRxData: Pointer to data received buffer
bogdanm 0:9b334a45a8ff 571 * @param Size: Amount of data to be sent
bogdanm 0:9b334a45a8ff 572 * @param Timeout: Timeout duration
bogdanm 0:9b334a45a8ff 573 * @retval HAL status
bogdanm 0:9b334a45a8ff 574 */
bogdanm 0:9b334a45a8ff 575 HAL_StatusTypeDef HAL_USART_TransmitReceive(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size, uint32_t Timeout)
bogdanm 0:9b334a45a8ff 576 {
bogdanm 0:9b334a45a8ff 577 uint16_t* tmp;
bogdanm 0:9b334a45a8ff 578
bogdanm 0:9b334a45a8ff 579 if(husart->State == HAL_USART_STATE_READY)
bogdanm 0:9b334a45a8ff 580 {
bogdanm 0:9b334a45a8ff 581 if((pTxData == NULL) || (pRxData == NULL) || (Size == 0))
bogdanm 0:9b334a45a8ff 582 {
bogdanm 0:9b334a45a8ff 583 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 584 }
bogdanm 0:9b334a45a8ff 585 /* Process Locked */
bogdanm 0:9b334a45a8ff 586 __HAL_LOCK(husart);
bogdanm 0:9b334a45a8ff 587
bogdanm 0:9b334a45a8ff 588 husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm 0:9b334a45a8ff 589 husart->State = HAL_USART_STATE_BUSY_RX;
bogdanm 0:9b334a45a8ff 590
bogdanm 0:9b334a45a8ff 591 husart->RxXferSize = Size;
bogdanm 0:9b334a45a8ff 592 husart->TxXferSize = Size;
bogdanm 0:9b334a45a8ff 593 husart->TxXferCount = Size;
bogdanm 0:9b334a45a8ff 594 husart->RxXferCount = Size;
bogdanm 0:9b334a45a8ff 595
bogdanm 0:9b334a45a8ff 596 /* Check the remain data to be received */
bogdanm 0:9b334a45a8ff 597 while(husart->TxXferCount > 0)
bogdanm 0:9b334a45a8ff 598 {
bogdanm 0:9b334a45a8ff 599 husart->TxXferCount--;
bogdanm 0:9b334a45a8ff 600 husart->RxXferCount--;
bogdanm 0:9b334a45a8ff 601 if(husart->Init.WordLength == USART_WORDLENGTH_9B)
bogdanm 0:9b334a45a8ff 602 {
bogdanm 0:9b334a45a8ff 603 /* Wait for TC flag in order to write data in DR */
bogdanm 0:9b334a45a8ff 604 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, Timeout) != HAL_OK)
bogdanm 0:9b334a45a8ff 605 {
bogdanm 0:9b334a45a8ff 606 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 607 }
bogdanm 0:9b334a45a8ff 608 tmp = (uint16_t*) pTxData;
bogdanm 0:9b334a45a8ff 609 husart->Instance->DR = (*tmp & (uint16_t)0x01FF);
bogdanm 0:9b334a45a8ff 610 if(husart->Init.Parity == USART_PARITY_NONE)
bogdanm 0:9b334a45a8ff 611 {
bogdanm 0:9b334a45a8ff 612 pTxData += 2;
bogdanm 0:9b334a45a8ff 613 }
bogdanm 0:9b334a45a8ff 614 else
bogdanm 0:9b334a45a8ff 615 {
bogdanm 0:9b334a45a8ff 616 pTxData += 1;
bogdanm 0:9b334a45a8ff 617 }
bogdanm 0:9b334a45a8ff 618
bogdanm 0:9b334a45a8ff 619 /* Wait for RXNE Flag */
bogdanm 0:9b334a45a8ff 620 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
bogdanm 0:9b334a45a8ff 621 {
bogdanm 0:9b334a45a8ff 622 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 623 }
bogdanm 0:9b334a45a8ff 624 tmp = (uint16_t*) pRxData ;
bogdanm 0:9b334a45a8ff 625 if(husart->Init.Parity == USART_PARITY_NONE)
bogdanm 0:9b334a45a8ff 626 {
bogdanm 0:9b334a45a8ff 627 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x01FF);
bogdanm 0:9b334a45a8ff 628 pRxData += 2;
bogdanm 0:9b334a45a8ff 629 }
bogdanm 0:9b334a45a8ff 630 else
bogdanm 0:9b334a45a8ff 631 {
bogdanm 0:9b334a45a8ff 632 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x00FF);
bogdanm 0:9b334a45a8ff 633 pRxData += 1;
bogdanm 0:9b334a45a8ff 634 }
bogdanm 0:9b334a45a8ff 635 }
bogdanm 0:9b334a45a8ff 636 else
bogdanm 0:9b334a45a8ff 637 {
bogdanm 0:9b334a45a8ff 638 /* Wait for TC flag in order to write data in DR */
bogdanm 0:9b334a45a8ff 639 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, Timeout) != HAL_OK)
bogdanm 0:9b334a45a8ff 640 {
bogdanm 0:9b334a45a8ff 641 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 642 }
bogdanm 0:9b334a45a8ff 643 husart->Instance->DR = (*pTxData++ & (uint8_t)0x00FF);
bogdanm 0:9b334a45a8ff 644
bogdanm 0:9b334a45a8ff 645 /* Wait for RXNE Flag */
bogdanm 0:9b334a45a8ff 646 if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
bogdanm 0:9b334a45a8ff 647 {
bogdanm 0:9b334a45a8ff 648 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 649 }
bogdanm 0:9b334a45a8ff 650 if(husart->Init.Parity == USART_PARITY_NONE)
bogdanm 0:9b334a45a8ff 651 {
bogdanm 0:9b334a45a8ff 652 /* Receive data */
bogdanm 0:9b334a45a8ff 653 *pRxData++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x00FF);
bogdanm 0:9b334a45a8ff 654 }
bogdanm 0:9b334a45a8ff 655 else
bogdanm 0:9b334a45a8ff 656 {
bogdanm 0:9b334a45a8ff 657 /* Receive data */
bogdanm 0:9b334a45a8ff 658 *pRxData++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x007F);
bogdanm 0:9b334a45a8ff 659 }
bogdanm 0:9b334a45a8ff 660 }
bogdanm 0:9b334a45a8ff 661 }
bogdanm 0:9b334a45a8ff 662
bogdanm 0:9b334a45a8ff 663 husart->State = HAL_USART_STATE_READY;
bogdanm 0:9b334a45a8ff 664
bogdanm 0:9b334a45a8ff 665 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 666 __HAL_UNLOCK(husart);
bogdanm 0:9b334a45a8ff 667
bogdanm 0:9b334a45a8ff 668 return HAL_OK;
bogdanm 0:9b334a45a8ff 669 }
bogdanm 0:9b334a45a8ff 670 else
bogdanm 0:9b334a45a8ff 671 {
bogdanm 0:9b334a45a8ff 672 return HAL_BUSY;
bogdanm 0:9b334a45a8ff 673 }
bogdanm 0:9b334a45a8ff 674 }
bogdanm 0:9b334a45a8ff 675
bogdanm 0:9b334a45a8ff 676 /**
bogdanm 0:9b334a45a8ff 677 * @brief Simplex Send an amount of data in non-blocking mode.
bogdanm 0:9b334a45a8ff 678 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 679 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 680 * @param pTxData: Pointer to data buffer
bogdanm 0:9b334a45a8ff 681 * @param Size: Amount of data to be sent
bogdanm 0:9b334a45a8ff 682 * @retval HAL status
bogdanm 0:9b334a45a8ff 683 * @note The USART errors are not managed to avoid the overrun error.
bogdanm 0:9b334a45a8ff 684 */
bogdanm 0:9b334a45a8ff 685 HAL_StatusTypeDef HAL_USART_Transmit_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size)
bogdanm 0:9b334a45a8ff 686 {
bogdanm 0:9b334a45a8ff 687 if(husart->State == HAL_USART_STATE_READY)
bogdanm 0:9b334a45a8ff 688 {
bogdanm 0:9b334a45a8ff 689 if((pTxData == NULL) || (Size == 0))
bogdanm 0:9b334a45a8ff 690 {
bogdanm 0:9b334a45a8ff 691 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 692 }
bogdanm 0:9b334a45a8ff 693
bogdanm 0:9b334a45a8ff 694 /* Process Locked */
bogdanm 0:9b334a45a8ff 695 __HAL_LOCK(husart);
bogdanm 0:9b334a45a8ff 696
bogdanm 0:9b334a45a8ff 697 husart->pTxBuffPtr = pTxData;
bogdanm 0:9b334a45a8ff 698 husart->TxXferSize = Size;
bogdanm 0:9b334a45a8ff 699 husart->TxXferCount = Size;
bogdanm 0:9b334a45a8ff 700
bogdanm 0:9b334a45a8ff 701 husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm 0:9b334a45a8ff 702 husart->State = HAL_USART_STATE_BUSY_TX;
bogdanm 0:9b334a45a8ff 703
bogdanm 0:9b334a45a8ff 704 /* The USART Error Interrupts: (Frame error, Noise error, Overrun error)
bogdanm 0:9b334a45a8ff 705 are not managed by the USART transmit process to avoid the overrun interrupt
bogdanm 0:9b334a45a8ff 706 when the USART mode is configured for transmit and receive "USART_MODE_TX_RX"
bogdanm 0:9b334a45a8ff 707 to benefit for the frame error and noise interrupts the USART mode should be
bogdanm 0:9b334a45a8ff 708 configured only for transmit "USART_MODE_TX"
bogdanm 0:9b334a45a8ff 709 The __HAL_USART_ENABLE_IT(husart, USART_IT_ERR) can be used to enable the Frame error,
bogdanm 0:9b334a45a8ff 710 Noise error interrupt */
bogdanm 0:9b334a45a8ff 711
bogdanm 0:9b334a45a8ff 712 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 713 __HAL_UNLOCK(husart);
bogdanm 0:9b334a45a8ff 714
bogdanm 0:9b334a45a8ff 715 /* Enable the USART Transmit Data Register Empty Interrupt */
bogdanm 0:9b334a45a8ff 716 __HAL_USART_ENABLE_IT(husart, USART_IT_TXE);
bogdanm 0:9b334a45a8ff 717
bogdanm 0:9b334a45a8ff 718 return HAL_OK;
bogdanm 0:9b334a45a8ff 719 }
bogdanm 0:9b334a45a8ff 720 else
bogdanm 0:9b334a45a8ff 721 {
bogdanm 0:9b334a45a8ff 722 return HAL_BUSY;
bogdanm 0:9b334a45a8ff 723 }
bogdanm 0:9b334a45a8ff 724 }
bogdanm 0:9b334a45a8ff 725
bogdanm 0:9b334a45a8ff 726 /**
bogdanm 0:9b334a45a8ff 727 * @brief Simplex Receive an amount of data in non-blocking mode.
bogdanm 0:9b334a45a8ff 728 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 729 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 730 * @param pRxData: Pointer to data buffer
bogdanm 0:9b334a45a8ff 731 * @param Size: Amount of data to be received
bogdanm 0:9b334a45a8ff 732 * @retval HAL status
bogdanm 0:9b334a45a8ff 733 */
bogdanm 0:9b334a45a8ff 734 HAL_StatusTypeDef HAL_USART_Receive_IT(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size)
bogdanm 0:9b334a45a8ff 735 {
bogdanm 0:9b334a45a8ff 736 if(husart->State == HAL_USART_STATE_READY)
bogdanm 0:9b334a45a8ff 737 {
bogdanm 0:9b334a45a8ff 738 if((pRxData == NULL) || (Size == 0))
bogdanm 0:9b334a45a8ff 739 {
bogdanm 0:9b334a45a8ff 740 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 741 }
bogdanm 0:9b334a45a8ff 742 /* Process Locked */
bogdanm 0:9b334a45a8ff 743 __HAL_LOCK(husart);
bogdanm 0:9b334a45a8ff 744
bogdanm 0:9b334a45a8ff 745 husart->pRxBuffPtr = pRxData;
bogdanm 0:9b334a45a8ff 746 husart->RxXferSize = Size;
bogdanm 0:9b334a45a8ff 747 husart->RxXferCount = Size;
bogdanm 0:9b334a45a8ff 748
bogdanm 0:9b334a45a8ff 749 husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm 0:9b334a45a8ff 750 husart->State = HAL_USART_STATE_BUSY_RX;
bogdanm 0:9b334a45a8ff 751
bogdanm 0:9b334a45a8ff 752 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 753 __HAL_UNLOCK(husart);
bogdanm 0:9b334a45a8ff 754
bogdanm 0:9b334a45a8ff 755 /* Enable the USART Data Register not empty Interrupt */
bogdanm 0:9b334a45a8ff 756 __HAL_USART_ENABLE_IT(husart, USART_IT_RXNE);
bogdanm 0:9b334a45a8ff 757
bogdanm 0:9b334a45a8ff 758 /* Enable the USART Parity Error Interrupt */
bogdanm 0:9b334a45a8ff 759 __HAL_USART_ENABLE_IT(husart, USART_IT_PE);
bogdanm 0:9b334a45a8ff 760
bogdanm 0:9b334a45a8ff 761 /* Enable the USART Error Interrupt: (Frame error, noise error, overrun error) */
bogdanm 0:9b334a45a8ff 762 __HAL_USART_ENABLE_IT(husart, USART_IT_ERR);
bogdanm 0:9b334a45a8ff 763
bogdanm 0:9b334a45a8ff 764 /* Send dummy byte in order to generate the clock for the slave to send data */
bogdanm 0:9b334a45a8ff 765 husart->Instance->DR = (DUMMY_DATA & (uint16_t)0x01FF);
bogdanm 0:9b334a45a8ff 766
bogdanm 0:9b334a45a8ff 767 return HAL_OK;
bogdanm 0:9b334a45a8ff 768 }
bogdanm 0:9b334a45a8ff 769 else
bogdanm 0:9b334a45a8ff 770 {
bogdanm 0:9b334a45a8ff 771 return HAL_BUSY;
bogdanm 0:9b334a45a8ff 772 }
bogdanm 0:9b334a45a8ff 773 }
bogdanm 0:9b334a45a8ff 774
bogdanm 0:9b334a45a8ff 775 /**
bogdanm 0:9b334a45a8ff 776 * @brief Full-Duplex Send receive an amount of data in full-duplex mode (non-blocking).
bogdanm 0:9b334a45a8ff 777 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 778 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 779 * @param pTxData: Pointer to data transmitted buffer
bogdanm 0:9b334a45a8ff 780 * @param pRxData: Pointer to data received buffer
bogdanm 0:9b334a45a8ff 781 * @param Size: Amount of data to be received
bogdanm 0:9b334a45a8ff 782 * @retval HAL status
bogdanm 0:9b334a45a8ff 783 */
bogdanm 0:9b334a45a8ff 784 HAL_StatusTypeDef HAL_USART_TransmitReceive_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size)
bogdanm 0:9b334a45a8ff 785 {
bogdanm 0:9b334a45a8ff 786 if(husart->State == HAL_USART_STATE_READY)
bogdanm 0:9b334a45a8ff 787 {
bogdanm 0:9b334a45a8ff 788 if((pTxData == NULL) || (pRxData == NULL) || (Size == 0))
bogdanm 0:9b334a45a8ff 789 {
bogdanm 0:9b334a45a8ff 790 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 791 }
bogdanm 0:9b334a45a8ff 792 /* Process Locked */
bogdanm 0:9b334a45a8ff 793 __HAL_LOCK(husart);
bogdanm 0:9b334a45a8ff 794
bogdanm 0:9b334a45a8ff 795 husart->pRxBuffPtr = pRxData;
bogdanm 0:9b334a45a8ff 796 husart->RxXferSize = Size;
bogdanm 0:9b334a45a8ff 797 husart->RxXferCount = Size;
bogdanm 0:9b334a45a8ff 798 husart->pTxBuffPtr = pTxData;
bogdanm 0:9b334a45a8ff 799 husart->TxXferSize = Size;
bogdanm 0:9b334a45a8ff 800 husart->TxXferCount = Size;
bogdanm 0:9b334a45a8ff 801
bogdanm 0:9b334a45a8ff 802 husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm 0:9b334a45a8ff 803 husart->State = HAL_USART_STATE_BUSY_TX_RX;
bogdanm 0:9b334a45a8ff 804
bogdanm 0:9b334a45a8ff 805 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 806 __HAL_UNLOCK(husart);
bogdanm 0:9b334a45a8ff 807
bogdanm 0:9b334a45a8ff 808 /* Enable the USART Data Register not empty Interrupt */
bogdanm 0:9b334a45a8ff 809 __HAL_USART_ENABLE_IT(husart, USART_IT_RXNE);
bogdanm 0:9b334a45a8ff 810
bogdanm 0:9b334a45a8ff 811 /* Enable the USART Parity Error Interrupt */
bogdanm 0:9b334a45a8ff 812 __HAL_USART_ENABLE_IT(husart, USART_IT_PE);
bogdanm 0:9b334a45a8ff 813
bogdanm 0:9b334a45a8ff 814 /* Enable the USART Error Interrupt: (Frame error, noise error, overrun error) */
bogdanm 0:9b334a45a8ff 815 __HAL_USART_ENABLE_IT(husart, USART_IT_ERR);
bogdanm 0:9b334a45a8ff 816
bogdanm 0:9b334a45a8ff 817 /* Enable the USART Transmit Data Register Empty Interrupt */
bogdanm 0:9b334a45a8ff 818 __HAL_USART_ENABLE_IT(husart, USART_IT_TXE);
bogdanm 0:9b334a45a8ff 819
bogdanm 0:9b334a45a8ff 820 return HAL_OK;
bogdanm 0:9b334a45a8ff 821 }
bogdanm 0:9b334a45a8ff 822 else
bogdanm 0:9b334a45a8ff 823 {
bogdanm 0:9b334a45a8ff 824 return HAL_BUSY;
bogdanm 0:9b334a45a8ff 825 }
bogdanm 0:9b334a45a8ff 826 }
bogdanm 0:9b334a45a8ff 827
bogdanm 0:9b334a45a8ff 828 /**
bogdanm 0:9b334a45a8ff 829 * @brief Simplex Send an amount of data in non-blocking mode.
bogdanm 0:9b334a45a8ff 830 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 831 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 832 * @param pTxData: Pointer to data buffer
bogdanm 0:9b334a45a8ff 833 * @param Size: Amount of data to be sent
bogdanm 0:9b334a45a8ff 834 * @retval HAL status
bogdanm 0:9b334a45a8ff 835 */
bogdanm 0:9b334a45a8ff 836 HAL_StatusTypeDef HAL_USART_Transmit_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size)
bogdanm 0:9b334a45a8ff 837 {
bogdanm 0:9b334a45a8ff 838 uint32_t *tmp;
bogdanm 0:9b334a45a8ff 839
bogdanm 0:9b334a45a8ff 840 if(husart->State == HAL_USART_STATE_READY)
bogdanm 0:9b334a45a8ff 841 {
bogdanm 0:9b334a45a8ff 842 if((pTxData == NULL) || (Size == 0))
bogdanm 0:9b334a45a8ff 843 {
bogdanm 0:9b334a45a8ff 844 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 845 }
bogdanm 0:9b334a45a8ff 846 /* Process Locked */
bogdanm 0:9b334a45a8ff 847 __HAL_LOCK(husart);
bogdanm 0:9b334a45a8ff 848
bogdanm 0:9b334a45a8ff 849 husart->pTxBuffPtr = pTxData;
bogdanm 0:9b334a45a8ff 850 husart->TxXferSize = Size;
bogdanm 0:9b334a45a8ff 851 husart->TxXferCount = Size;
bogdanm 0:9b334a45a8ff 852
bogdanm 0:9b334a45a8ff 853 husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm 0:9b334a45a8ff 854 husart->State = HAL_USART_STATE_BUSY_TX;
bogdanm 0:9b334a45a8ff 855
bogdanm 0:9b334a45a8ff 856 /* Set the USART DMA transfer complete callback */
bogdanm 0:9b334a45a8ff 857 husart->hdmatx->XferCpltCallback = USART_DMATransmitCplt;
bogdanm 0:9b334a45a8ff 858
bogdanm 0:9b334a45a8ff 859 /* Set the USART DMA Half transfer complete callback */
bogdanm 0:9b334a45a8ff 860 husart->hdmatx->XferHalfCpltCallback = USART_DMATxHalfCplt;
bogdanm 0:9b334a45a8ff 861
bogdanm 0:9b334a45a8ff 862 /* Set the DMA error callback */
bogdanm 0:9b334a45a8ff 863 husart->hdmatx->XferErrorCallback = USART_DMAError;
bogdanm 0:9b334a45a8ff 864
bogdanm 0:9b334a45a8ff 865 /* Enable the USART transmit DMA Stream */
bogdanm 0:9b334a45a8ff 866 tmp = (uint32_t*)&pTxData;
bogdanm 0:9b334a45a8ff 867 HAL_DMA_Start_IT(husart->hdmatx, *(uint32_t*)tmp, (uint32_t)&husart->Instance->DR, Size);
bogdanm 0:9b334a45a8ff 868
bogdanm 0:9b334a45a8ff 869 /* Clear the TC flag in the SR register by writing 0 to it */
bogdanm 0:9b334a45a8ff 870 __HAL_USART_CLEAR_FLAG(husart, USART_FLAG_TC);
bogdanm 0:9b334a45a8ff 871
bogdanm 0:9b334a45a8ff 872 /* Enable the DMA transfer for transmit request by setting the DMAT bit
bogdanm 0:9b334a45a8ff 873 in the USART CR3 register */
bogdanm 0:9b334a45a8ff 874 husart->Instance->CR3 |= USART_CR3_DMAT;
bogdanm 0:9b334a45a8ff 875
bogdanm 0:9b334a45a8ff 876 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 877 __HAL_UNLOCK(husart);
bogdanm 0:9b334a45a8ff 878
bogdanm 0:9b334a45a8ff 879 return HAL_OK;
bogdanm 0:9b334a45a8ff 880 }
bogdanm 0:9b334a45a8ff 881 else
bogdanm 0:9b334a45a8ff 882 {
bogdanm 0:9b334a45a8ff 883 return HAL_BUSY;
bogdanm 0:9b334a45a8ff 884 }
bogdanm 0:9b334a45a8ff 885 }
bogdanm 0:9b334a45a8ff 886
bogdanm 0:9b334a45a8ff 887 /**
bogdanm 0:9b334a45a8ff 888 * @brief Full-Duplex Receive an amount of data in non-blocking mode.
bogdanm 0:9b334a45a8ff 889 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 890 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 891 * @param pRxData: Pointer to data buffer
bogdanm 0:9b334a45a8ff 892 * @param Size: Amount of data to be received
bogdanm 0:9b334a45a8ff 893 * @retval HAL status
bogdanm 0:9b334a45a8ff 894 * @note The USART DMA transmit stream must be configured in order to generate the clock for the slave.
bogdanm 0:9b334a45a8ff 895 * @note When the USART parity is enabled (PCE = 1) the data received contain the parity bit.
bogdanm 0:9b334a45a8ff 896 */
bogdanm 0:9b334a45a8ff 897 HAL_StatusTypeDef HAL_USART_Receive_DMA(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size)
bogdanm 0:9b334a45a8ff 898 {
bogdanm 0:9b334a45a8ff 899 uint32_t *tmp;
bogdanm 0:9b334a45a8ff 900
bogdanm 0:9b334a45a8ff 901 if(husart->State == HAL_USART_STATE_READY)
bogdanm 0:9b334a45a8ff 902 {
bogdanm 0:9b334a45a8ff 903 if((pRxData == NULL) || (Size == 0))
bogdanm 0:9b334a45a8ff 904 {
bogdanm 0:9b334a45a8ff 905 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 906 }
bogdanm 0:9b334a45a8ff 907
bogdanm 0:9b334a45a8ff 908 /* Process Locked */
bogdanm 0:9b334a45a8ff 909 __HAL_LOCK(husart);
bogdanm 0:9b334a45a8ff 910
bogdanm 0:9b334a45a8ff 911 husart->pRxBuffPtr = pRxData;
bogdanm 0:9b334a45a8ff 912 husart->RxXferSize = Size;
bogdanm 0:9b334a45a8ff 913 husart->pTxBuffPtr = pRxData;
bogdanm 0:9b334a45a8ff 914 husart->TxXferSize = Size;
bogdanm 0:9b334a45a8ff 915
bogdanm 0:9b334a45a8ff 916 husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm 0:9b334a45a8ff 917 husart->State = HAL_USART_STATE_BUSY_RX;
bogdanm 0:9b334a45a8ff 918
bogdanm 0:9b334a45a8ff 919 /* Set the USART DMA Rx transfer complete callback */
bogdanm 0:9b334a45a8ff 920 husart->hdmarx->XferCpltCallback = USART_DMAReceiveCplt;
bogdanm 0:9b334a45a8ff 921
bogdanm 0:9b334a45a8ff 922 /* Set the USART DMA Half transfer complete callback */
bogdanm 0:9b334a45a8ff 923 husart->hdmarx->XferHalfCpltCallback = USART_DMARxHalfCplt;
bogdanm 0:9b334a45a8ff 924
bogdanm 0:9b334a45a8ff 925 /* Set the USART DMA Rx transfer error callback */
bogdanm 0:9b334a45a8ff 926 husart->hdmarx->XferErrorCallback = USART_DMAError;
bogdanm 0:9b334a45a8ff 927
bogdanm 0:9b334a45a8ff 928 /* Enable the USART receive DMA Stream */
bogdanm 0:9b334a45a8ff 929 tmp = (uint32_t*)&pRxData;
bogdanm 0:9b334a45a8ff 930 HAL_DMA_Start_IT(husart->hdmarx, (uint32_t)&husart->Instance->DR, *(uint32_t*)tmp, Size);
bogdanm 0:9b334a45a8ff 931
bogdanm 0:9b334a45a8ff 932 /* Enable the USART transmit DMA Stream: the transmit stream is used in order
bogdanm 0:9b334a45a8ff 933 to generate in the non-blocking mode the clock to the slave device,
bogdanm 0:9b334a45a8ff 934 this mode isn't a simplex receive mode but a full-duplex receive one */
bogdanm 0:9b334a45a8ff 935 HAL_DMA_Start_IT(husart->hdmatx, *(uint32_t*)tmp, (uint32_t)&husart->Instance->DR, Size);
bogdanm 0:9b334a45a8ff 936
bogdanm 0:9b334a45a8ff 937 /* Clear the Overrun flag just before enabling the DMA Rx request: mandatory for the second transfer
bogdanm 0:9b334a45a8ff 938 when using the USART in circular mode */
bogdanm 0:9b334a45a8ff 939 __HAL_USART_CLEAR_OREFLAG(husart);
bogdanm 0:9b334a45a8ff 940
bogdanm 0:9b334a45a8ff 941 /* Enable the DMA transfer for the receiver request by setting the DMAR bit
bogdanm 0:9b334a45a8ff 942 in the USART CR3 register */
bogdanm 0:9b334a45a8ff 943 husart->Instance->CR3 |= USART_CR3_DMAR;
bogdanm 0:9b334a45a8ff 944
bogdanm 0:9b334a45a8ff 945 /* Enable the DMA transfer for transmit request by setting the DMAT bit
bogdanm 0:9b334a45a8ff 946 in the USART CR3 register */
bogdanm 0:9b334a45a8ff 947 husart->Instance->CR3 |= USART_CR3_DMAT;
bogdanm 0:9b334a45a8ff 948
bogdanm 0:9b334a45a8ff 949 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 950 __HAL_UNLOCK(husart);
bogdanm 0:9b334a45a8ff 951
bogdanm 0:9b334a45a8ff 952 return HAL_OK;
bogdanm 0:9b334a45a8ff 953 }
bogdanm 0:9b334a45a8ff 954 else
bogdanm 0:9b334a45a8ff 955 {
bogdanm 0:9b334a45a8ff 956 return HAL_BUSY;
bogdanm 0:9b334a45a8ff 957 }
bogdanm 0:9b334a45a8ff 958 }
bogdanm 0:9b334a45a8ff 959
bogdanm 0:9b334a45a8ff 960 /**
bogdanm 0:9b334a45a8ff 961 * @brief Full-Duplex Transmit Receive an amount of data in non-blocking mode.
bogdanm 0:9b334a45a8ff 962 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 963 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 964 * @param pTxData: Pointer to data transmitted buffer
bogdanm 0:9b334a45a8ff 965 * @param pRxData: Pointer to data received buffer
bogdanm 0:9b334a45a8ff 966 * @param Size: Amount of data to be received
bogdanm 0:9b334a45a8ff 967 * @note When the USART parity is enabled (PCE = 1) the data received contain the parity bit.
bogdanm 0:9b334a45a8ff 968 * @retval HAL status
bogdanm 0:9b334a45a8ff 969 */
bogdanm 0:9b334a45a8ff 970 HAL_StatusTypeDef HAL_USART_TransmitReceive_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size)
bogdanm 0:9b334a45a8ff 971 {
bogdanm 0:9b334a45a8ff 972 uint32_t *tmp;
bogdanm 0:9b334a45a8ff 973
bogdanm 0:9b334a45a8ff 974 if(husart->State == HAL_USART_STATE_READY)
bogdanm 0:9b334a45a8ff 975 {
bogdanm 0:9b334a45a8ff 976 if((pTxData == NULL) || (pRxData == NULL) || (Size == 0))
bogdanm 0:9b334a45a8ff 977 {
bogdanm 0:9b334a45a8ff 978 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 979 }
bogdanm 0:9b334a45a8ff 980 /* Process Locked */
bogdanm 0:9b334a45a8ff 981 __HAL_LOCK(husart);
bogdanm 0:9b334a45a8ff 982
bogdanm 0:9b334a45a8ff 983 husart->pRxBuffPtr = pRxData;
bogdanm 0:9b334a45a8ff 984 husart->RxXferSize = Size;
bogdanm 0:9b334a45a8ff 985 husart->pTxBuffPtr = pTxData;
bogdanm 0:9b334a45a8ff 986 husart->TxXferSize = Size;
bogdanm 0:9b334a45a8ff 987
bogdanm 0:9b334a45a8ff 988 husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm 0:9b334a45a8ff 989 husart->State = HAL_USART_STATE_BUSY_TX_RX;
bogdanm 0:9b334a45a8ff 990
bogdanm 0:9b334a45a8ff 991 /* Set the USART DMA Rx transfer complete callback */
bogdanm 0:9b334a45a8ff 992 husart->hdmarx->XferCpltCallback = USART_DMAReceiveCplt;
bogdanm 0:9b334a45a8ff 993
bogdanm 0:9b334a45a8ff 994 /* Set the USART DMA Half transfer complete callback */
bogdanm 0:9b334a45a8ff 995 husart->hdmarx->XferHalfCpltCallback = USART_DMARxHalfCplt;
bogdanm 0:9b334a45a8ff 996
bogdanm 0:9b334a45a8ff 997 /* Set the USART DMA Tx transfer complete callback */
bogdanm 0:9b334a45a8ff 998 husart->hdmatx->XferCpltCallback = USART_DMATransmitCplt;
bogdanm 0:9b334a45a8ff 999
bogdanm 0:9b334a45a8ff 1000 /* Set the USART DMA Half transfer complete callback */
bogdanm 0:9b334a45a8ff 1001 husart->hdmatx->XferHalfCpltCallback = USART_DMATxHalfCplt;
bogdanm 0:9b334a45a8ff 1002
bogdanm 0:9b334a45a8ff 1003 /* Set the USART DMA Tx transfer error callback */
bogdanm 0:9b334a45a8ff 1004 husart->hdmatx->XferErrorCallback = USART_DMAError;
bogdanm 0:9b334a45a8ff 1005
bogdanm 0:9b334a45a8ff 1006 /* Set the USART DMA Rx transfer error callback */
bogdanm 0:9b334a45a8ff 1007 husart->hdmarx->XferErrorCallback = USART_DMAError;
bogdanm 0:9b334a45a8ff 1008
bogdanm 0:9b334a45a8ff 1009 /* Enable the USART receive DMA Stream */
bogdanm 0:9b334a45a8ff 1010 tmp = (uint32_t*)&pRxData;
bogdanm 0:9b334a45a8ff 1011 HAL_DMA_Start_IT(husart->hdmarx, (uint32_t)&husart->Instance->DR, *(uint32_t*)tmp, Size);
bogdanm 0:9b334a45a8ff 1012
bogdanm 0:9b334a45a8ff 1013 /* Enable the USART transmit DMA Stream */
bogdanm 0:9b334a45a8ff 1014 tmp = (uint32_t*)&pTxData;
bogdanm 0:9b334a45a8ff 1015 HAL_DMA_Start_IT(husart->hdmatx, *(uint32_t*)tmp, (uint32_t)&husart->Instance->DR, Size);
bogdanm 0:9b334a45a8ff 1016
bogdanm 0:9b334a45a8ff 1017 /* Clear the TC flag in the SR register by writing 0 to it */
bogdanm 0:9b334a45a8ff 1018 __HAL_USART_CLEAR_FLAG(husart, USART_FLAG_TC);
bogdanm 0:9b334a45a8ff 1019
bogdanm 0:9b334a45a8ff 1020 /* Clear the Overrun flag: mandatory for the second transfer in circular mode */
bogdanm 0:9b334a45a8ff 1021 __HAL_USART_CLEAR_OREFLAG(husart);
bogdanm 0:9b334a45a8ff 1022
bogdanm 0:9b334a45a8ff 1023 /* Enable the DMA transfer for the receiver request by setting the DMAR bit
bogdanm 0:9b334a45a8ff 1024 in the USART CR3 register */
bogdanm 0:9b334a45a8ff 1025 husart->Instance->CR3 |= USART_CR3_DMAR;
bogdanm 0:9b334a45a8ff 1026
bogdanm 0:9b334a45a8ff 1027 /* Enable the DMA transfer for transmit request by setting the DMAT bit
bogdanm 0:9b334a45a8ff 1028 in the USART CR3 register */
bogdanm 0:9b334a45a8ff 1029 husart->Instance->CR3 |= USART_CR3_DMAT;
bogdanm 0:9b334a45a8ff 1030
bogdanm 0:9b334a45a8ff 1031 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 1032 __HAL_UNLOCK(husart);
bogdanm 0:9b334a45a8ff 1033
bogdanm 0:9b334a45a8ff 1034 return HAL_OK;
bogdanm 0:9b334a45a8ff 1035 }
bogdanm 0:9b334a45a8ff 1036 else
bogdanm 0:9b334a45a8ff 1037 {
bogdanm 0:9b334a45a8ff 1038 return HAL_BUSY;
bogdanm 0:9b334a45a8ff 1039 }
bogdanm 0:9b334a45a8ff 1040 }
bogdanm 0:9b334a45a8ff 1041
bogdanm 0:9b334a45a8ff 1042 /**
bogdanm 0:9b334a45a8ff 1043 * @brief Pauses the DMA Transfer.
bogdanm 0:9b334a45a8ff 1044 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1045 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1046 * @retval HAL status
bogdanm 0:9b334a45a8ff 1047 */
bogdanm 0:9b334a45a8ff 1048 HAL_StatusTypeDef HAL_USART_DMAPause(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1049 {
bogdanm 0:9b334a45a8ff 1050 /* Process Locked */
bogdanm 0:9b334a45a8ff 1051 __HAL_LOCK(husart);
bogdanm 0:9b334a45a8ff 1052
bogdanm 0:9b334a45a8ff 1053 /* Disable the USART DMA Tx request */
bogdanm 0:9b334a45a8ff 1054 husart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
bogdanm 0:9b334a45a8ff 1055
bogdanm 0:9b334a45a8ff 1056 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 1057 __HAL_UNLOCK(husart);
bogdanm 0:9b334a45a8ff 1058
bogdanm 0:9b334a45a8ff 1059 return HAL_OK;
bogdanm 0:9b334a45a8ff 1060 }
bogdanm 0:9b334a45a8ff 1061
bogdanm 0:9b334a45a8ff 1062 /**
bogdanm 0:9b334a45a8ff 1063 * @brief Resumes the DMA Transfer.
bogdanm 0:9b334a45a8ff 1064 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1065 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1066 * @retval HAL status
bogdanm 0:9b334a45a8ff 1067 */
bogdanm 0:9b334a45a8ff 1068 HAL_StatusTypeDef HAL_USART_DMAResume(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1069 {
bogdanm 0:9b334a45a8ff 1070 /* Process Locked */
bogdanm 0:9b334a45a8ff 1071 __HAL_LOCK(husart);
bogdanm 0:9b334a45a8ff 1072
bogdanm 0:9b334a45a8ff 1073 /* Enable the USART DMA Tx request */
bogdanm 0:9b334a45a8ff 1074 husart->Instance->CR3 |= USART_CR3_DMAT;
bogdanm 0:9b334a45a8ff 1075
bogdanm 0:9b334a45a8ff 1076 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 1077 __HAL_UNLOCK(husart);
bogdanm 0:9b334a45a8ff 1078
bogdanm 0:9b334a45a8ff 1079 return HAL_OK;
bogdanm 0:9b334a45a8ff 1080 }
bogdanm 0:9b334a45a8ff 1081
bogdanm 0:9b334a45a8ff 1082 /**
bogdanm 0:9b334a45a8ff 1083 * @brief Stops the DMA Transfer.
bogdanm 0:9b334a45a8ff 1084 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1085 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1086 * @retval HAL status
bogdanm 0:9b334a45a8ff 1087 */
bogdanm 0:9b334a45a8ff 1088 HAL_StatusTypeDef HAL_USART_DMAStop(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1089 {
bogdanm 0:9b334a45a8ff 1090 /* The Lock is not implemented on this API to allow the user application
bogdanm 0:9b334a45a8ff 1091 to call the HAL USART API under callbacks HAL_USART_TxCpltCallback() / HAL_USART_RxCpltCallback():
bogdanm 0:9b334a45a8ff 1092 when calling HAL_DMA_Abort() API the DMA TX/RX Transfer complete interrupt is generated
bogdanm 0:9b334a45a8ff 1093 and the correspond call back is executed HAL_USART_TxCpltCallback() / HAL_USART_RxCpltCallback()
bogdanm 0:9b334a45a8ff 1094 */
bogdanm 0:9b334a45a8ff 1095
bogdanm 0:9b334a45a8ff 1096 /* Abort the USART DMA Tx Stream */
bogdanm 0:9b334a45a8ff 1097 if(husart->hdmatx != NULL)
bogdanm 0:9b334a45a8ff 1098 {
bogdanm 0:9b334a45a8ff 1099 HAL_DMA_Abort(husart->hdmatx);
bogdanm 0:9b334a45a8ff 1100 }
bogdanm 0:9b334a45a8ff 1101 /* Abort the USART DMA Rx Stream */
bogdanm 0:9b334a45a8ff 1102 if(husart->hdmarx != NULL)
bogdanm 0:9b334a45a8ff 1103 {
bogdanm 0:9b334a45a8ff 1104 HAL_DMA_Abort(husart->hdmarx);
bogdanm 0:9b334a45a8ff 1105 }
bogdanm 0:9b334a45a8ff 1106
bogdanm 0:9b334a45a8ff 1107 /* Disable the USART Tx/Rx DMA requests */
bogdanm 0:9b334a45a8ff 1108 husart->Instance->CR3 &= ~USART_CR3_DMAT;
bogdanm 0:9b334a45a8ff 1109 husart->Instance->CR3 &= ~USART_CR3_DMAR;
bogdanm 0:9b334a45a8ff 1110
bogdanm 0:9b334a45a8ff 1111 husart->State = HAL_USART_STATE_READY;
bogdanm 0:9b334a45a8ff 1112
bogdanm 0:9b334a45a8ff 1113 return HAL_OK;
bogdanm 0:9b334a45a8ff 1114 }
bogdanm 0:9b334a45a8ff 1115
bogdanm 0:9b334a45a8ff 1116 /**
bogdanm 0:9b334a45a8ff 1117 * @brief This function handles USART interrupt request.
bogdanm 0:9b334a45a8ff 1118 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1119 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1120 * @retval None
bogdanm 0:9b334a45a8ff 1121 */
bogdanm 0:9b334a45a8ff 1122 void HAL_USART_IRQHandler(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1123 {
bogdanm 0:9b334a45a8ff 1124 uint32_t tmp1 = 0, tmp2 = 0;
bogdanm 0:9b334a45a8ff 1125
bogdanm 0:9b334a45a8ff 1126 tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_PE);
bogdanm 0:9b334a45a8ff 1127 tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_PE);
bogdanm 0:9b334a45a8ff 1128 /* USART parity error interrupt occurred -----------------------------------*/
bogdanm 0:9b334a45a8ff 1129 if((tmp1 != RESET) && (tmp2 != RESET))
bogdanm 0:9b334a45a8ff 1130 {
bogdanm 0:9b334a45a8ff 1131 __HAL_USART_CLEAR_PEFLAG(husart);
bogdanm 0:9b334a45a8ff 1132 husart->ErrorCode |= HAL_USART_ERROR_PE;
bogdanm 0:9b334a45a8ff 1133 }
bogdanm 0:9b334a45a8ff 1134
bogdanm 0:9b334a45a8ff 1135 tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_FE);
bogdanm 0:9b334a45a8ff 1136 tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_ERR);
bogdanm 0:9b334a45a8ff 1137 /* USART frame error interrupt occurred ------------------------------------*/
bogdanm 0:9b334a45a8ff 1138 if((tmp1 != RESET) && (tmp2 != RESET))
bogdanm 0:9b334a45a8ff 1139 {
bogdanm 0:9b334a45a8ff 1140 __HAL_USART_CLEAR_FEFLAG(husart);
bogdanm 0:9b334a45a8ff 1141 husart->ErrorCode |= HAL_USART_ERROR_FE;
bogdanm 0:9b334a45a8ff 1142 }
bogdanm 0:9b334a45a8ff 1143
bogdanm 0:9b334a45a8ff 1144 tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_NE);
bogdanm 0:9b334a45a8ff 1145 tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_ERR);
bogdanm 0:9b334a45a8ff 1146 /* USART noise error interrupt occurred ------------------------------------*/
bogdanm 0:9b334a45a8ff 1147 if((tmp1 != RESET) && (tmp2 != RESET))
bogdanm 0:9b334a45a8ff 1148 {
bogdanm 0:9b334a45a8ff 1149 __HAL_USART_CLEAR_NEFLAG(husart);
bogdanm 0:9b334a45a8ff 1150 husart->ErrorCode |= HAL_USART_ERROR_NE;
bogdanm 0:9b334a45a8ff 1151 }
bogdanm 0:9b334a45a8ff 1152
bogdanm 0:9b334a45a8ff 1153 tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_ORE);
bogdanm 0:9b334a45a8ff 1154 tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_ERR);
bogdanm 0:9b334a45a8ff 1155 /* USART Over-Run interrupt occurred ---------------------------------------*/
bogdanm 0:9b334a45a8ff 1156 if((tmp1 != RESET) && (tmp2 != RESET))
bogdanm 0:9b334a45a8ff 1157 {
bogdanm 0:9b334a45a8ff 1158 __HAL_USART_CLEAR_OREFLAG(husart);
bogdanm 0:9b334a45a8ff 1159 husart->ErrorCode |= HAL_USART_ERROR_ORE;
bogdanm 0:9b334a45a8ff 1160 }
bogdanm 0:9b334a45a8ff 1161
bogdanm 0:9b334a45a8ff 1162 if(husart->ErrorCode != HAL_USART_ERROR_NONE)
bogdanm 0:9b334a45a8ff 1163 {
bogdanm 0:9b334a45a8ff 1164 /* Set the USART state ready to be able to start again the process */
bogdanm 0:9b334a45a8ff 1165 husart->State = HAL_USART_STATE_READY;
bogdanm 0:9b334a45a8ff 1166
bogdanm 0:9b334a45a8ff 1167 HAL_USART_ErrorCallback(husart);
bogdanm 0:9b334a45a8ff 1168 }
bogdanm 0:9b334a45a8ff 1169
bogdanm 0:9b334a45a8ff 1170 tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_RXNE);
bogdanm 0:9b334a45a8ff 1171 tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_RXNE);
bogdanm 0:9b334a45a8ff 1172 /* USART in mode Receiver --------------------------------------------------*/
bogdanm 0:9b334a45a8ff 1173 if((tmp1 != RESET) && (tmp2 != RESET))
bogdanm 0:9b334a45a8ff 1174 {
bogdanm 0:9b334a45a8ff 1175 if(husart->State == HAL_USART_STATE_BUSY_RX)
bogdanm 0:9b334a45a8ff 1176 {
bogdanm 0:9b334a45a8ff 1177 USART_Receive_IT(husart);
bogdanm 0:9b334a45a8ff 1178 }
bogdanm 0:9b334a45a8ff 1179 else
bogdanm 0:9b334a45a8ff 1180 {
bogdanm 0:9b334a45a8ff 1181 USART_TransmitReceive_IT(husart);
bogdanm 0:9b334a45a8ff 1182 }
bogdanm 0:9b334a45a8ff 1183 }
bogdanm 0:9b334a45a8ff 1184
bogdanm 0:9b334a45a8ff 1185 tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_TXE);
bogdanm 0:9b334a45a8ff 1186 tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_TXE);
bogdanm 0:9b334a45a8ff 1187 /* USART in mode Transmitter -----------------------------------------------*/
bogdanm 0:9b334a45a8ff 1188 if((tmp1 != RESET) && (tmp2 != RESET))
bogdanm 0:9b334a45a8ff 1189 {
bogdanm 0:9b334a45a8ff 1190 if(husart->State == HAL_USART_STATE_BUSY_TX)
bogdanm 0:9b334a45a8ff 1191 {
bogdanm 0:9b334a45a8ff 1192 USART_Transmit_IT(husart);
bogdanm 0:9b334a45a8ff 1193 }
bogdanm 0:9b334a45a8ff 1194 else
bogdanm 0:9b334a45a8ff 1195 {
bogdanm 0:9b334a45a8ff 1196 USART_TransmitReceive_IT(husart);
bogdanm 0:9b334a45a8ff 1197 }
bogdanm 0:9b334a45a8ff 1198 }
bogdanm 0:9b334a45a8ff 1199
bogdanm 0:9b334a45a8ff 1200 tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_TC);
bogdanm 0:9b334a45a8ff 1201 tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_TC);
bogdanm 0:9b334a45a8ff 1202 /* USART in mode Transmitter (transmission end) ----------------------------*/
bogdanm 0:9b334a45a8ff 1203 if((tmp1 != RESET) && (tmp2 != RESET))
bogdanm 0:9b334a45a8ff 1204 {
bogdanm 0:9b334a45a8ff 1205 USART_EndTransmit_IT(husart);
bogdanm 0:9b334a45a8ff 1206 }
bogdanm 0:9b334a45a8ff 1207 }
bogdanm 0:9b334a45a8ff 1208
bogdanm 0:9b334a45a8ff 1209 /**
bogdanm 0:9b334a45a8ff 1210 * @brief Tx Transfer completed callbacks.
bogdanm 0:9b334a45a8ff 1211 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1212 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1213 * @retval None
bogdanm 0:9b334a45a8ff 1214 */
bogdanm 0:9b334a45a8ff 1215 __weak void HAL_USART_TxCpltCallback(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1216 {
bogdanm 0:9b334a45a8ff 1217 /* NOTE: This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 1218 the HAL_USART_TxCpltCallback could be implemented in the user file
bogdanm 0:9b334a45a8ff 1219 */
bogdanm 0:9b334a45a8ff 1220 }
bogdanm 0:9b334a45a8ff 1221
bogdanm 0:9b334a45a8ff 1222 /**
bogdanm 0:9b334a45a8ff 1223 * @brief Tx Half Transfer completed callbacks.
bogdanm 0:9b334a45a8ff 1224 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1225 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1226 * @retval None
bogdanm 0:9b334a45a8ff 1227 */
bogdanm 0:9b334a45a8ff 1228 __weak void HAL_USART_TxHalfCpltCallback(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1229 {
bogdanm 0:9b334a45a8ff 1230 /* NOTE: This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 1231 the HAL_USART_TxCpltCallback could be implemented in the user file
bogdanm 0:9b334a45a8ff 1232 */
bogdanm 0:9b334a45a8ff 1233 }
bogdanm 0:9b334a45a8ff 1234
bogdanm 0:9b334a45a8ff 1235 /**
bogdanm 0:9b334a45a8ff 1236 * @brief Rx Transfer completed callbacks.
bogdanm 0:9b334a45a8ff 1237 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1238 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1239 * @retval None
bogdanm 0:9b334a45a8ff 1240 */
bogdanm 0:9b334a45a8ff 1241 __weak void HAL_USART_RxCpltCallback(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1242 {
bogdanm 0:9b334a45a8ff 1243 /* NOTE: This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 1244 the HAL_USART_TxCpltCallback could be implemented in the user file
bogdanm 0:9b334a45a8ff 1245 */
bogdanm 0:9b334a45a8ff 1246 }
bogdanm 0:9b334a45a8ff 1247
bogdanm 0:9b334a45a8ff 1248 /**
bogdanm 0:9b334a45a8ff 1249 * @brief Rx Half Transfer completed callbacks.
bogdanm 0:9b334a45a8ff 1250 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1251 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1252 * @retval None
bogdanm 0:9b334a45a8ff 1253 */
bogdanm 0:9b334a45a8ff 1254 __weak void HAL_USART_RxHalfCpltCallback(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1255 {
bogdanm 0:9b334a45a8ff 1256 /* NOTE: This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 1257 the HAL_USART_TxCpltCallback could be implemented in the user file
bogdanm 0:9b334a45a8ff 1258 */
bogdanm 0:9b334a45a8ff 1259 }
bogdanm 0:9b334a45a8ff 1260
bogdanm 0:9b334a45a8ff 1261 /**
bogdanm 0:9b334a45a8ff 1262 * @brief Tx/Rx Transfers completed callback for the non-blocking process.
bogdanm 0:9b334a45a8ff 1263 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1264 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1265 * @retval None
bogdanm 0:9b334a45a8ff 1266 */
bogdanm 0:9b334a45a8ff 1267 __weak void HAL_USART_TxRxCpltCallback(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1268 {
bogdanm 0:9b334a45a8ff 1269 /* NOTE: This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 1270 the HAL_USART_TxCpltCallback could be implemented in the user file
bogdanm 0:9b334a45a8ff 1271 */
bogdanm 0:9b334a45a8ff 1272 }
bogdanm 0:9b334a45a8ff 1273
bogdanm 0:9b334a45a8ff 1274 /**
bogdanm 0:9b334a45a8ff 1275 * @brief USART error callbacks.
bogdanm 0:9b334a45a8ff 1276 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1277 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1278 * @retval None
bogdanm 0:9b334a45a8ff 1279 */
bogdanm 0:9b334a45a8ff 1280 __weak void HAL_USART_ErrorCallback(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1281 {
bogdanm 0:9b334a45a8ff 1282 /* NOTE: This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 1283 the HAL_USART_ErrorCallback could be implemented in the user file
bogdanm 0:9b334a45a8ff 1284 */
bogdanm 0:9b334a45a8ff 1285 }
bogdanm 0:9b334a45a8ff 1286
bogdanm 0:9b334a45a8ff 1287 /**
bogdanm 0:9b334a45a8ff 1288 * @}
bogdanm 0:9b334a45a8ff 1289 */
bogdanm 0:9b334a45a8ff 1290
bogdanm 0:9b334a45a8ff 1291 /** @defgroup USART_Exported_Functions_Group3 Peripheral State and Errors functions
bogdanm 0:9b334a45a8ff 1292 * @brief USART State and Errors functions
bogdanm 0:9b334a45a8ff 1293 *
bogdanm 0:9b334a45a8ff 1294 @verbatim
bogdanm 0:9b334a45a8ff 1295 ==============================================================================
bogdanm 0:9b334a45a8ff 1296 ##### Peripheral State and Errors functions #####
bogdanm 0:9b334a45a8ff 1297 ==============================================================================
bogdanm 0:9b334a45a8ff 1298 [..]
bogdanm 0:9b334a45a8ff 1299 This subsection provides a set of functions allowing to return the State of
bogdanm 0:9b334a45a8ff 1300 USART communication
bogdanm 0:9b334a45a8ff 1301 process, return Peripheral Errors occurred during communication process
bogdanm 0:9b334a45a8ff 1302 (+) HAL_USART_GetState() API can be helpful to check in run-time the state
bogdanm 0:9b334a45a8ff 1303 of the USART peripheral.
bogdanm 0:9b334a45a8ff 1304 (+) HAL_USART_GetError() check in run-time errors that could be occurred during
bogdanm 0:9b334a45a8ff 1305 communication.
bogdanm 0:9b334a45a8ff 1306 @endverbatim
bogdanm 0:9b334a45a8ff 1307 * @{
bogdanm 0:9b334a45a8ff 1308 */
bogdanm 0:9b334a45a8ff 1309
bogdanm 0:9b334a45a8ff 1310 /**
bogdanm 0:9b334a45a8ff 1311 * @brief Returns the USART state.
bogdanm 0:9b334a45a8ff 1312 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1313 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1314 * @retval HAL state
bogdanm 0:9b334a45a8ff 1315 */
bogdanm 0:9b334a45a8ff 1316 HAL_USART_StateTypeDef HAL_USART_GetState(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1317 {
bogdanm 0:9b334a45a8ff 1318 return husart->State;
bogdanm 0:9b334a45a8ff 1319 }
bogdanm 0:9b334a45a8ff 1320
bogdanm 0:9b334a45a8ff 1321 /**
bogdanm 0:9b334a45a8ff 1322 * @brief Return the USART error code
bogdanm 0:9b334a45a8ff 1323 * @param husart : pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1324 * the configuration information for the specified USART.
bogdanm 0:9b334a45a8ff 1325 * @retval USART Error Code
bogdanm 0:9b334a45a8ff 1326 */
bogdanm 0:9b334a45a8ff 1327 uint32_t HAL_USART_GetError(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1328 {
bogdanm 0:9b334a45a8ff 1329 return husart->ErrorCode;
bogdanm 0:9b334a45a8ff 1330 }
bogdanm 0:9b334a45a8ff 1331
bogdanm 0:9b334a45a8ff 1332 /**
bogdanm 0:9b334a45a8ff 1333 * @}
bogdanm 0:9b334a45a8ff 1334 */
bogdanm 0:9b334a45a8ff 1335
bogdanm 0:9b334a45a8ff 1336
bogdanm 0:9b334a45a8ff 1337 /**
bogdanm 0:9b334a45a8ff 1338 * @brief DMA USART transmit process complete callback.
bogdanm 0:9b334a45a8ff 1339 * @param hdma: DMA handle
bogdanm 0:9b334a45a8ff 1340 * @retval None
bogdanm 0:9b334a45a8ff 1341 */
bogdanm 0:9b334a45a8ff 1342 static void USART_DMATransmitCplt(DMA_HandleTypeDef *hdma)
bogdanm 0:9b334a45a8ff 1343 {
bogdanm 0:9b334a45a8ff 1344 USART_HandleTypeDef* husart = ( USART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
bogdanm 0:9b334a45a8ff 1345 /* DMA Normal mode */
bogdanm 0:9b334a45a8ff 1346 if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
bogdanm 0:9b334a45a8ff 1347 {
bogdanm 0:9b334a45a8ff 1348 husart->TxXferCount = 0;
bogdanm 0:9b334a45a8ff 1349 if(husart->State == HAL_USART_STATE_BUSY_TX)
bogdanm 0:9b334a45a8ff 1350 {
bogdanm 0:9b334a45a8ff 1351 /* Disable the DMA transfer for transmit request by resetting the DMAT bit
bogdanm 0:9b334a45a8ff 1352 in the USART CR3 register */
bogdanm 0:9b334a45a8ff 1353 CLEAR_BIT(husart->Instance->CR3, USART_CR3_DMAT);
bogdanm 0:9b334a45a8ff 1354
bogdanm 0:9b334a45a8ff 1355 /* Enable the USART Transmit Complete Interrupt */
bogdanm 0:9b334a45a8ff 1356 __HAL_USART_ENABLE_IT(husart, USART_IT_TC);
bogdanm 0:9b334a45a8ff 1357 }
bogdanm 0:9b334a45a8ff 1358 }
bogdanm 0:9b334a45a8ff 1359 /* DMA Circular mode */
bogdanm 0:9b334a45a8ff 1360 else
bogdanm 0:9b334a45a8ff 1361 {
bogdanm 0:9b334a45a8ff 1362 if(husart->State == HAL_USART_STATE_BUSY_TX)
bogdanm 0:9b334a45a8ff 1363 {
bogdanm 0:9b334a45a8ff 1364 HAL_USART_TxCpltCallback(husart);
bogdanm 0:9b334a45a8ff 1365 }
bogdanm 0:9b334a45a8ff 1366 }
bogdanm 0:9b334a45a8ff 1367 }
bogdanm 0:9b334a45a8ff 1368
bogdanm 0:9b334a45a8ff 1369 /**
bogdanm 0:9b334a45a8ff 1370 * @brief DMA USART transmit process half complete callback
bogdanm 0:9b334a45a8ff 1371 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1372 * the configuration information for the specified DMA module.
bogdanm 0:9b334a45a8ff 1373 * @retval None
bogdanm 0:9b334a45a8ff 1374 */
bogdanm 0:9b334a45a8ff 1375 static void USART_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
bogdanm 0:9b334a45a8ff 1376 {
bogdanm 0:9b334a45a8ff 1377 USART_HandleTypeDef* husart = (USART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
bogdanm 0:9b334a45a8ff 1378
bogdanm 0:9b334a45a8ff 1379 HAL_USART_TxHalfCpltCallback(husart);
bogdanm 0:9b334a45a8ff 1380 }
bogdanm 0:9b334a45a8ff 1381
bogdanm 0:9b334a45a8ff 1382 /**
bogdanm 0:9b334a45a8ff 1383 * @brief DMA USART receive process complete callback.
bogdanm 0:9b334a45a8ff 1384 * @param hdma: DMA handle
bogdanm 0:9b334a45a8ff 1385 * @retval None
bogdanm 0:9b334a45a8ff 1386 */
bogdanm 0:9b334a45a8ff 1387 static void USART_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
bogdanm 0:9b334a45a8ff 1388 {
bogdanm 0:9b334a45a8ff 1389 USART_HandleTypeDef* husart = ( USART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
bogdanm 0:9b334a45a8ff 1390 /* DMA Normal mode */
bogdanm 0:9b334a45a8ff 1391 if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
bogdanm 0:9b334a45a8ff 1392 {
bogdanm 0:9b334a45a8ff 1393 husart->RxXferCount = 0;
bogdanm 0:9b334a45a8ff 1394 if(husart->State == HAL_USART_STATE_BUSY_RX)
bogdanm 0:9b334a45a8ff 1395 {
bogdanm 0:9b334a45a8ff 1396 /* Disable the DMA transfer for the Transmit/receiver requests by setting the DMAT/DMAR bit
bogdanm 0:9b334a45a8ff 1397 in the USART CR3 register */
bogdanm 0:9b334a45a8ff 1398 husart->Instance->CR3 &= ~(USART_CR3_DMAR);
bogdanm 0:9b334a45a8ff 1399
bogdanm 0:9b334a45a8ff 1400 husart->State= HAL_USART_STATE_READY;
bogdanm 0:9b334a45a8ff 1401 HAL_USART_RxCpltCallback(husart);
bogdanm 0:9b334a45a8ff 1402 }
bogdanm 0:9b334a45a8ff 1403 /* The USART state is HAL_USART_STATE_BUSY_TX_RX */
bogdanm 0:9b334a45a8ff 1404 else
bogdanm 0:9b334a45a8ff 1405 {
bogdanm 0:9b334a45a8ff 1406 /* Disable the DMA transfer for the Transmit/receiver requests by setting the DMAT/DMAR bit
bogdanm 0:9b334a45a8ff 1407 in the USART CR3 register */
bogdanm 0:9b334a45a8ff 1408 husart->Instance->CR3 &= ~(USART_CR3_DMAR);
bogdanm 0:9b334a45a8ff 1409 husart->Instance->CR3 &= ~(USART_CR3_DMAT);
bogdanm 0:9b334a45a8ff 1410
bogdanm 0:9b334a45a8ff 1411 husart->State= HAL_USART_STATE_READY;
bogdanm 0:9b334a45a8ff 1412 HAL_USART_TxRxCpltCallback(husart);
bogdanm 0:9b334a45a8ff 1413 }
bogdanm 0:9b334a45a8ff 1414 }
bogdanm 0:9b334a45a8ff 1415 /* DMA circular mode */
bogdanm 0:9b334a45a8ff 1416 else
bogdanm 0:9b334a45a8ff 1417 {
bogdanm 0:9b334a45a8ff 1418 if(husart->State == HAL_USART_STATE_BUSY_RX)
bogdanm 0:9b334a45a8ff 1419 {
bogdanm 0:9b334a45a8ff 1420 HAL_USART_RxCpltCallback(husart);
bogdanm 0:9b334a45a8ff 1421 }
bogdanm 0:9b334a45a8ff 1422 /* The USART state is HAL_USART_STATE_BUSY_TX_RX */
bogdanm 0:9b334a45a8ff 1423 else
bogdanm 0:9b334a45a8ff 1424 {
bogdanm 0:9b334a45a8ff 1425 HAL_USART_TxRxCpltCallback(husart);
bogdanm 0:9b334a45a8ff 1426 }
bogdanm 0:9b334a45a8ff 1427 }
bogdanm 0:9b334a45a8ff 1428 }
bogdanm 0:9b334a45a8ff 1429
bogdanm 0:9b334a45a8ff 1430 /**
bogdanm 0:9b334a45a8ff 1431 * @brief DMA USART receive process half complete callback
bogdanm 0:9b334a45a8ff 1432 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1433 * the configuration information for the specified DMA module.
bogdanm 0:9b334a45a8ff 1434 * @retval None
bogdanm 0:9b334a45a8ff 1435 */
bogdanm 0:9b334a45a8ff 1436 static void USART_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
bogdanm 0:9b334a45a8ff 1437 {
bogdanm 0:9b334a45a8ff 1438 USART_HandleTypeDef* husart = (USART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
bogdanm 0:9b334a45a8ff 1439
bogdanm 0:9b334a45a8ff 1440 HAL_USART_RxHalfCpltCallback(husart);
bogdanm 0:9b334a45a8ff 1441 }
bogdanm 0:9b334a45a8ff 1442
bogdanm 0:9b334a45a8ff 1443 /**
bogdanm 0:9b334a45a8ff 1444 * @brief DMA USART communication error callback.
bogdanm 0:9b334a45a8ff 1445 * @param hdma: DMA handle
bogdanm 0:9b334a45a8ff 1446 * @retval None
bogdanm 0:9b334a45a8ff 1447 */
bogdanm 0:9b334a45a8ff 1448 static void USART_DMAError(DMA_HandleTypeDef *hdma)
bogdanm 0:9b334a45a8ff 1449 {
bogdanm 0:9b334a45a8ff 1450 USART_HandleTypeDef* husart = ( USART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
bogdanm 0:9b334a45a8ff 1451
bogdanm 0:9b334a45a8ff 1452 husart->RxXferCount = 0;
bogdanm 0:9b334a45a8ff 1453 husart->TxXferCount = 0;
bogdanm 0:9b334a45a8ff 1454 husart->ErrorCode |= HAL_USART_ERROR_DMA;
bogdanm 0:9b334a45a8ff 1455 husart->State= HAL_USART_STATE_READY;
bogdanm 0:9b334a45a8ff 1456
bogdanm 0:9b334a45a8ff 1457 HAL_USART_ErrorCallback(husart);
bogdanm 0:9b334a45a8ff 1458 }
bogdanm 0:9b334a45a8ff 1459
bogdanm 0:9b334a45a8ff 1460 /**
bogdanm 0:9b334a45a8ff 1461 * @brief This function handles USART Communication Timeout.
bogdanm 0:9b334a45a8ff 1462 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1463 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1464 * @param Flag: specifies the USART flag to check.
bogdanm 0:9b334a45a8ff 1465 * @param Status: The new Flag status (SET or RESET).
bogdanm 0:9b334a45a8ff 1466 * @param Timeout: Timeout duration
bogdanm 0:9b334a45a8ff 1467 * @retval HAL status
bogdanm 0:9b334a45a8ff 1468 */
bogdanm 0:9b334a45a8ff 1469 static HAL_StatusTypeDef USART_WaitOnFlagUntilTimeout(USART_HandleTypeDef *husart, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
bogdanm 0:9b334a45a8ff 1470 {
bogdanm 0:9b334a45a8ff 1471 uint32_t tickstart = 0;
bogdanm 0:9b334a45a8ff 1472
bogdanm 0:9b334a45a8ff 1473 /* Get tick */
bogdanm 0:9b334a45a8ff 1474 tickstart = HAL_GetTick();
bogdanm 0:9b334a45a8ff 1475
bogdanm 0:9b334a45a8ff 1476 /* Wait until flag is set */
bogdanm 0:9b334a45a8ff 1477 if(Status == RESET)
bogdanm 0:9b334a45a8ff 1478 {
bogdanm 0:9b334a45a8ff 1479 while(__HAL_USART_GET_FLAG(husart, Flag) == RESET)
bogdanm 0:9b334a45a8ff 1480 {
bogdanm 0:9b334a45a8ff 1481 /* Check for the Timeout */
bogdanm 0:9b334a45a8ff 1482 if(Timeout != HAL_MAX_DELAY)
bogdanm 0:9b334a45a8ff 1483 {
bogdanm 0:9b334a45a8ff 1484 if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
bogdanm 0:9b334a45a8ff 1485 {
bogdanm 0:9b334a45a8ff 1486 /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
bogdanm 0:9b334a45a8ff 1487 __HAL_USART_DISABLE_IT(husart, USART_IT_TXE);
bogdanm 0:9b334a45a8ff 1488 __HAL_USART_DISABLE_IT(husart, USART_IT_RXNE);
bogdanm 0:9b334a45a8ff 1489 __HAL_USART_DISABLE_IT(husart, USART_IT_PE);
bogdanm 0:9b334a45a8ff 1490 __HAL_USART_DISABLE_IT(husart, USART_IT_ERR);
bogdanm 0:9b334a45a8ff 1491
bogdanm 0:9b334a45a8ff 1492 husart->State= HAL_USART_STATE_READY;
bogdanm 0:9b334a45a8ff 1493
bogdanm 0:9b334a45a8ff 1494 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 1495 __HAL_UNLOCK(husart);
bogdanm 0:9b334a45a8ff 1496
bogdanm 0:9b334a45a8ff 1497 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 1498 }
bogdanm 0:9b334a45a8ff 1499 }
bogdanm 0:9b334a45a8ff 1500 }
bogdanm 0:9b334a45a8ff 1501 }
bogdanm 0:9b334a45a8ff 1502 else
bogdanm 0:9b334a45a8ff 1503 {
bogdanm 0:9b334a45a8ff 1504 while(__HAL_USART_GET_FLAG(husart, Flag) != RESET)
bogdanm 0:9b334a45a8ff 1505 {
bogdanm 0:9b334a45a8ff 1506 /* Check for the Timeout */
bogdanm 0:9b334a45a8ff 1507 if(Timeout != HAL_MAX_DELAY)
bogdanm 0:9b334a45a8ff 1508 {
bogdanm 0:9b334a45a8ff 1509 if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
bogdanm 0:9b334a45a8ff 1510 {
bogdanm 0:9b334a45a8ff 1511 /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
bogdanm 0:9b334a45a8ff 1512 __HAL_USART_DISABLE_IT(husart, USART_IT_TXE);
bogdanm 0:9b334a45a8ff 1513 __HAL_USART_DISABLE_IT(husart, USART_IT_RXNE);
bogdanm 0:9b334a45a8ff 1514 __HAL_USART_DISABLE_IT(husart, USART_IT_PE);
bogdanm 0:9b334a45a8ff 1515 __HAL_USART_DISABLE_IT(husart, USART_IT_ERR);
bogdanm 0:9b334a45a8ff 1516
bogdanm 0:9b334a45a8ff 1517 husart->State= HAL_USART_STATE_READY;
bogdanm 0:9b334a45a8ff 1518
bogdanm 0:9b334a45a8ff 1519 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 1520 __HAL_UNLOCK(husart);
bogdanm 0:9b334a45a8ff 1521
bogdanm 0:9b334a45a8ff 1522 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 1523 }
bogdanm 0:9b334a45a8ff 1524 }
bogdanm 0:9b334a45a8ff 1525 }
bogdanm 0:9b334a45a8ff 1526 }
bogdanm 0:9b334a45a8ff 1527 return HAL_OK;
bogdanm 0:9b334a45a8ff 1528 }
bogdanm 0:9b334a45a8ff 1529
bogdanm 0:9b334a45a8ff 1530
bogdanm 0:9b334a45a8ff 1531 /**
bogdanm 0:9b334a45a8ff 1532 * @brief Simplex Send an amount of data in non-blocking mode.
bogdanm 0:9b334a45a8ff 1533 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1534 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1535 * @retval HAL status
bogdanm 0:9b334a45a8ff 1536 * @note The USART errors are not managed to avoid the overrun error.
bogdanm 0:9b334a45a8ff 1537 */
bogdanm 0:9b334a45a8ff 1538 static HAL_StatusTypeDef USART_Transmit_IT(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1539 {
bogdanm 0:9b334a45a8ff 1540 uint16_t* tmp;
bogdanm 0:9b334a45a8ff 1541
bogdanm 0:9b334a45a8ff 1542 if(husart->State == HAL_USART_STATE_BUSY_TX)
bogdanm 0:9b334a45a8ff 1543 {
bogdanm 0:9b334a45a8ff 1544 if(husart->Init.WordLength == USART_WORDLENGTH_9B)
bogdanm 0:9b334a45a8ff 1545 {
bogdanm 0:9b334a45a8ff 1546 tmp = (uint16_t*) husart->pTxBuffPtr;
bogdanm 0:9b334a45a8ff 1547 husart->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF);
bogdanm 0:9b334a45a8ff 1548 if(husart->Init.Parity == USART_PARITY_NONE)
bogdanm 0:9b334a45a8ff 1549 {
bogdanm 0:9b334a45a8ff 1550 husart->pTxBuffPtr += 2;
bogdanm 0:9b334a45a8ff 1551 }
bogdanm 0:9b334a45a8ff 1552 else
bogdanm 0:9b334a45a8ff 1553 {
bogdanm 0:9b334a45a8ff 1554 husart->pTxBuffPtr += 1;
bogdanm 0:9b334a45a8ff 1555 }
bogdanm 0:9b334a45a8ff 1556 }
bogdanm 0:9b334a45a8ff 1557 else
bogdanm 0:9b334a45a8ff 1558 {
bogdanm 0:9b334a45a8ff 1559 husart->Instance->DR = (uint8_t)(*husart->pTxBuffPtr++ & (uint8_t)0x00FF);
bogdanm 0:9b334a45a8ff 1560 }
bogdanm 0:9b334a45a8ff 1561
bogdanm 0:9b334a45a8ff 1562 if(--husart->TxXferCount == 0)
bogdanm 0:9b334a45a8ff 1563 {
bogdanm 0:9b334a45a8ff 1564 /* Disable the USART Transmit data register empty Interrupt */
bogdanm 0:9b334a45a8ff 1565 __HAL_USART_DISABLE_IT(husart, USART_IT_TXE);
bogdanm 0:9b334a45a8ff 1566
bogdanm 0:9b334a45a8ff 1567 /* Enable the USART Transmit Complete Interrupt */
bogdanm 0:9b334a45a8ff 1568 __HAL_USART_ENABLE_IT(husart, USART_IT_TC);
bogdanm 0:9b334a45a8ff 1569 }
bogdanm 0:9b334a45a8ff 1570 return HAL_OK;
bogdanm 0:9b334a45a8ff 1571 }
bogdanm 0:9b334a45a8ff 1572 else
bogdanm 0:9b334a45a8ff 1573 {
bogdanm 0:9b334a45a8ff 1574 return HAL_BUSY;
bogdanm 0:9b334a45a8ff 1575 }
bogdanm 0:9b334a45a8ff 1576 }
bogdanm 0:9b334a45a8ff 1577
bogdanm 0:9b334a45a8ff 1578 /**
bogdanm 0:9b334a45a8ff 1579 * @brief Wraps up transmission in non blocking mode.
bogdanm 0:9b334a45a8ff 1580 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1581 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1582 * @retval HAL status
bogdanm 0:9b334a45a8ff 1583 */
bogdanm 0:9b334a45a8ff 1584 static HAL_StatusTypeDef USART_EndTransmit_IT(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1585 {
bogdanm 0:9b334a45a8ff 1586 /* Disable the USART Transmit Complete Interrupt */
bogdanm 0:9b334a45a8ff 1587 __HAL_USART_DISABLE_IT(husart, USART_IT_TC);
bogdanm 0:9b334a45a8ff 1588
bogdanm 0:9b334a45a8ff 1589 /* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */
bogdanm 0:9b334a45a8ff 1590 __HAL_USART_DISABLE_IT(husart, USART_IT_ERR);
bogdanm 0:9b334a45a8ff 1591
bogdanm 0:9b334a45a8ff 1592 husart->State = HAL_USART_STATE_READY;
bogdanm 0:9b334a45a8ff 1593
bogdanm 0:9b334a45a8ff 1594 HAL_USART_TxCpltCallback(husart);
bogdanm 0:9b334a45a8ff 1595
bogdanm 0:9b334a45a8ff 1596 return HAL_OK;
bogdanm 0:9b334a45a8ff 1597 }
bogdanm 0:9b334a45a8ff 1598
bogdanm 0:9b334a45a8ff 1599 /**
bogdanm 0:9b334a45a8ff 1600 * @brief Simplex Receive an amount of data in non-blocking mode.
bogdanm 0:9b334a45a8ff 1601 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1602 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1603 * @retval HAL status
bogdanm 0:9b334a45a8ff 1604 */
bogdanm 0:9b334a45a8ff 1605 static HAL_StatusTypeDef USART_Receive_IT(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1606 {
bogdanm 0:9b334a45a8ff 1607 uint16_t* tmp;
bogdanm 0:9b334a45a8ff 1608 if(husart->State == HAL_USART_STATE_BUSY_RX)
bogdanm 0:9b334a45a8ff 1609 {
bogdanm 0:9b334a45a8ff 1610 if(husart->Init.WordLength == USART_WORDLENGTH_9B)
bogdanm 0:9b334a45a8ff 1611 {
bogdanm 0:9b334a45a8ff 1612 tmp = (uint16_t*) husart->pRxBuffPtr;
bogdanm 0:9b334a45a8ff 1613 if(husart->Init.Parity == USART_PARITY_NONE)
bogdanm 0:9b334a45a8ff 1614 {
bogdanm 0:9b334a45a8ff 1615 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x01FF);
bogdanm 0:9b334a45a8ff 1616 husart->pRxBuffPtr += 2;
bogdanm 0:9b334a45a8ff 1617 }
bogdanm 0:9b334a45a8ff 1618 else
bogdanm 0:9b334a45a8ff 1619 {
bogdanm 0:9b334a45a8ff 1620 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x00FF);
bogdanm 0:9b334a45a8ff 1621 husart->pRxBuffPtr += 1;
bogdanm 0:9b334a45a8ff 1622 }
bogdanm 0:9b334a45a8ff 1623 if(--husart->RxXferCount != 0x00)
bogdanm 0:9b334a45a8ff 1624 {
bogdanm 0:9b334a45a8ff 1625 /* Send dummy byte in order to generate the clock for the slave to send the next data */
bogdanm 0:9b334a45a8ff 1626 husart->Instance->DR = (DUMMY_DATA & (uint16_t)0x01FF);
bogdanm 0:9b334a45a8ff 1627 }
bogdanm 0:9b334a45a8ff 1628 }
bogdanm 0:9b334a45a8ff 1629 else
bogdanm 0:9b334a45a8ff 1630 {
bogdanm 0:9b334a45a8ff 1631 if(husart->Init.Parity == USART_PARITY_NONE)
bogdanm 0:9b334a45a8ff 1632 {
bogdanm 0:9b334a45a8ff 1633 *husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x00FF);
bogdanm 0:9b334a45a8ff 1634 }
bogdanm 0:9b334a45a8ff 1635 else
bogdanm 0:9b334a45a8ff 1636 {
bogdanm 0:9b334a45a8ff 1637 *husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x007F);
bogdanm 0:9b334a45a8ff 1638 }
bogdanm 0:9b334a45a8ff 1639
bogdanm 0:9b334a45a8ff 1640 if(--husart->RxXferCount != 0x00)
bogdanm 0:9b334a45a8ff 1641 {
bogdanm 0:9b334a45a8ff 1642 /* Send dummy byte in order to generate the clock for the slave to send the next data */
bogdanm 0:9b334a45a8ff 1643 husart->Instance->DR = (DUMMY_DATA & (uint16_t)0x00FF);
bogdanm 0:9b334a45a8ff 1644 }
bogdanm 0:9b334a45a8ff 1645 }
bogdanm 0:9b334a45a8ff 1646
bogdanm 0:9b334a45a8ff 1647 if(husart->RxXferCount == 0)
bogdanm 0:9b334a45a8ff 1648 {
bogdanm 0:9b334a45a8ff 1649 /* Disable the USART RXNE Interrupt */
bogdanm 0:9b334a45a8ff 1650 __HAL_USART_DISABLE_IT(husart, USART_IT_RXNE);
bogdanm 0:9b334a45a8ff 1651
bogdanm 0:9b334a45a8ff 1652 /* Disable the USART Parity Error Interrupt */
bogdanm 0:9b334a45a8ff 1653 __HAL_USART_DISABLE_IT(husart, USART_IT_PE);
bogdanm 0:9b334a45a8ff 1654
bogdanm 0:9b334a45a8ff 1655 /* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */
bogdanm 0:9b334a45a8ff 1656 __HAL_USART_DISABLE_IT(husart, USART_IT_ERR);
bogdanm 0:9b334a45a8ff 1657
bogdanm 0:9b334a45a8ff 1658 husart->State = HAL_USART_STATE_READY;
bogdanm 0:9b334a45a8ff 1659 HAL_USART_RxCpltCallback(husart);
bogdanm 0:9b334a45a8ff 1660
bogdanm 0:9b334a45a8ff 1661 return HAL_OK;
bogdanm 0:9b334a45a8ff 1662 }
bogdanm 0:9b334a45a8ff 1663 return HAL_OK;
bogdanm 0:9b334a45a8ff 1664 }
bogdanm 0:9b334a45a8ff 1665 else
bogdanm 0:9b334a45a8ff 1666 {
bogdanm 0:9b334a45a8ff 1667 return HAL_BUSY;
bogdanm 0:9b334a45a8ff 1668 }
bogdanm 0:9b334a45a8ff 1669 }
bogdanm 0:9b334a45a8ff 1670
bogdanm 0:9b334a45a8ff 1671 /**
bogdanm 0:9b334a45a8ff 1672 * @brief Full-Duplex Send receive an amount of data in full-duplex mode (non-blocking).
bogdanm 0:9b334a45a8ff 1673 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1674 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1675 * @retval HAL status
bogdanm 0:9b334a45a8ff 1676 */
bogdanm 0:9b334a45a8ff 1677 static HAL_StatusTypeDef USART_TransmitReceive_IT(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1678 {
bogdanm 0:9b334a45a8ff 1679 uint16_t* tmp;
bogdanm 0:9b334a45a8ff 1680
bogdanm 0:9b334a45a8ff 1681 if(husart->State == HAL_USART_STATE_BUSY_TX_RX)
bogdanm 0:9b334a45a8ff 1682 {
bogdanm 0:9b334a45a8ff 1683 if(husart->TxXferCount != 0x00)
bogdanm 0:9b334a45a8ff 1684 {
bogdanm 0:9b334a45a8ff 1685 if(__HAL_USART_GET_FLAG(husart, USART_FLAG_TXE) != RESET)
bogdanm 0:9b334a45a8ff 1686 {
bogdanm 0:9b334a45a8ff 1687 if(husart->Init.WordLength == USART_WORDLENGTH_9B)
bogdanm 0:9b334a45a8ff 1688 {
bogdanm 0:9b334a45a8ff 1689 tmp = (uint16_t*) husart->pTxBuffPtr;
bogdanm 0:9b334a45a8ff 1690 husart->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF);
bogdanm 0:9b334a45a8ff 1691 if(husart->Init.Parity == USART_PARITY_NONE)
bogdanm 0:9b334a45a8ff 1692 {
bogdanm 0:9b334a45a8ff 1693 husart->pTxBuffPtr += 2;
bogdanm 0:9b334a45a8ff 1694 }
bogdanm 0:9b334a45a8ff 1695 else
bogdanm 0:9b334a45a8ff 1696 {
bogdanm 0:9b334a45a8ff 1697 husart->pTxBuffPtr += 1;
bogdanm 0:9b334a45a8ff 1698 }
bogdanm 0:9b334a45a8ff 1699 }
bogdanm 0:9b334a45a8ff 1700 else
bogdanm 0:9b334a45a8ff 1701 {
bogdanm 0:9b334a45a8ff 1702 husart->Instance->DR = (uint8_t)(*husart->pTxBuffPtr++ & (uint8_t)0x00FF);
bogdanm 0:9b334a45a8ff 1703 }
bogdanm 0:9b334a45a8ff 1704 husart->TxXferCount--;
bogdanm 0:9b334a45a8ff 1705
bogdanm 0:9b334a45a8ff 1706 /* Check the latest data transmitted */
bogdanm 0:9b334a45a8ff 1707 if(husart->TxXferCount == 0)
bogdanm 0:9b334a45a8ff 1708 {
bogdanm 0:9b334a45a8ff 1709 __HAL_USART_DISABLE_IT(husart, USART_IT_TXE);
bogdanm 0:9b334a45a8ff 1710 }
bogdanm 0:9b334a45a8ff 1711 }
bogdanm 0:9b334a45a8ff 1712 }
bogdanm 0:9b334a45a8ff 1713
bogdanm 0:9b334a45a8ff 1714 if(husart->RxXferCount != 0x00)
bogdanm 0:9b334a45a8ff 1715 {
bogdanm 0:9b334a45a8ff 1716 if(__HAL_USART_GET_FLAG(husart, USART_FLAG_RXNE) != RESET)
bogdanm 0:9b334a45a8ff 1717 {
bogdanm 0:9b334a45a8ff 1718 if(husart->Init.WordLength == USART_WORDLENGTH_9B)
bogdanm 0:9b334a45a8ff 1719 {
bogdanm 0:9b334a45a8ff 1720 tmp = (uint16_t*) husart->pRxBuffPtr;
bogdanm 0:9b334a45a8ff 1721 if(husart->Init.Parity == USART_PARITY_NONE)
bogdanm 0:9b334a45a8ff 1722 {
bogdanm 0:9b334a45a8ff 1723 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x01FF);
bogdanm 0:9b334a45a8ff 1724 husart->pRxBuffPtr += 2;
bogdanm 0:9b334a45a8ff 1725 }
bogdanm 0:9b334a45a8ff 1726 else
bogdanm 0:9b334a45a8ff 1727 {
bogdanm 0:9b334a45a8ff 1728 *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x00FF);
bogdanm 0:9b334a45a8ff 1729 husart->pRxBuffPtr += 1;
bogdanm 0:9b334a45a8ff 1730 }
bogdanm 0:9b334a45a8ff 1731 }
bogdanm 0:9b334a45a8ff 1732 else
bogdanm 0:9b334a45a8ff 1733 {
bogdanm 0:9b334a45a8ff 1734 if(husart->Init.Parity == USART_PARITY_NONE)
bogdanm 0:9b334a45a8ff 1735 {
bogdanm 0:9b334a45a8ff 1736 *husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x00FF);
bogdanm 0:9b334a45a8ff 1737 }
bogdanm 0:9b334a45a8ff 1738 else
bogdanm 0:9b334a45a8ff 1739 {
bogdanm 0:9b334a45a8ff 1740 *husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x007F);
bogdanm 0:9b334a45a8ff 1741 }
bogdanm 0:9b334a45a8ff 1742 }
bogdanm 0:9b334a45a8ff 1743 husart->RxXferCount--;
bogdanm 0:9b334a45a8ff 1744 }
bogdanm 0:9b334a45a8ff 1745 }
bogdanm 0:9b334a45a8ff 1746
bogdanm 0:9b334a45a8ff 1747 /* Check the latest data received */
bogdanm 0:9b334a45a8ff 1748 if(husart->RxXferCount == 0)
bogdanm 0:9b334a45a8ff 1749 {
bogdanm 0:9b334a45a8ff 1750 __HAL_USART_DISABLE_IT(husart, USART_IT_RXNE);
bogdanm 0:9b334a45a8ff 1751
bogdanm 0:9b334a45a8ff 1752 /* Disable the USART Parity Error Interrupt */
bogdanm 0:9b334a45a8ff 1753 __HAL_USART_DISABLE_IT(husart, USART_IT_PE);
bogdanm 0:9b334a45a8ff 1754
bogdanm 0:9b334a45a8ff 1755 /* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */
bogdanm 0:9b334a45a8ff 1756 __HAL_USART_DISABLE_IT(husart, USART_IT_ERR);
bogdanm 0:9b334a45a8ff 1757
bogdanm 0:9b334a45a8ff 1758 husart->State = HAL_USART_STATE_READY;
bogdanm 0:9b334a45a8ff 1759
bogdanm 0:9b334a45a8ff 1760 HAL_USART_TxRxCpltCallback(husart);
bogdanm 0:9b334a45a8ff 1761
bogdanm 0:9b334a45a8ff 1762 return HAL_OK;
bogdanm 0:9b334a45a8ff 1763 }
bogdanm 0:9b334a45a8ff 1764
bogdanm 0:9b334a45a8ff 1765 return HAL_OK;
bogdanm 0:9b334a45a8ff 1766 }
bogdanm 0:9b334a45a8ff 1767 else
bogdanm 0:9b334a45a8ff 1768 {
bogdanm 0:9b334a45a8ff 1769 return HAL_BUSY;
bogdanm 0:9b334a45a8ff 1770 }
bogdanm 0:9b334a45a8ff 1771 }
bogdanm 0:9b334a45a8ff 1772
bogdanm 0:9b334a45a8ff 1773 /**
bogdanm 0:9b334a45a8ff 1774 * @brief Configures the USART peripheral.
bogdanm 0:9b334a45a8ff 1775 * @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 1776 * the configuration information for the specified USART module.
bogdanm 0:9b334a45a8ff 1777 * @retval None
bogdanm 0:9b334a45a8ff 1778 */
bogdanm 0:9b334a45a8ff 1779 static void USART_SetConfig(USART_HandleTypeDef *husart)
bogdanm 0:9b334a45a8ff 1780 {
bogdanm 0:9b334a45a8ff 1781 uint32_t tmpreg = 0x00;
bogdanm 0:9b334a45a8ff 1782
bogdanm 0:9b334a45a8ff 1783 /* Check the parameters */
bogdanm 0:9b334a45a8ff 1784 assert_param(IS_USART_INSTANCE(husart->Instance));
bogdanm 0:9b334a45a8ff 1785 assert_param(IS_USART_POLARITY(husart->Init.CLKPolarity));
bogdanm 0:9b334a45a8ff 1786 assert_param(IS_USART_PHASE(husart->Init.CLKPhase));
bogdanm 0:9b334a45a8ff 1787 assert_param(IS_USART_LASTBIT(husart->Init.CLKLastBit));
bogdanm 0:9b334a45a8ff 1788 assert_param(IS_USART_BAUDRATE(husart->Init.BaudRate));
bogdanm 0:9b334a45a8ff 1789 assert_param(IS_USART_WORD_LENGTH(husart->Init.WordLength));
bogdanm 0:9b334a45a8ff 1790 assert_param(IS_USART_STOPBITS(husart->Init.StopBits));
bogdanm 0:9b334a45a8ff 1791 assert_param(IS_USART_PARITY(husart->Init.Parity));
bogdanm 0:9b334a45a8ff 1792 assert_param(IS_USART_MODE(husart->Init.Mode));
bogdanm 0:9b334a45a8ff 1793
bogdanm 0:9b334a45a8ff 1794 /* The LBCL, CPOL and CPHA bits have to be selected when both the transmitter and the
bogdanm 0:9b334a45a8ff 1795 receiver are disabled (TE=RE=0) to ensure that the clock pulses function correctly. */
bogdanm 0:9b334a45a8ff 1796 husart->Instance->CR1 &= (uint32_t)~((uint32_t)(USART_CR1_TE | USART_CR1_RE));
bogdanm 0:9b334a45a8ff 1797
bogdanm 0:9b334a45a8ff 1798 /*---------------------------- USART CR2 Configuration ---------------------*/
bogdanm 0:9b334a45a8ff 1799 tmpreg = husart->Instance->CR2;
bogdanm 0:9b334a45a8ff 1800 /* Clear CLKEN, CPOL, CPHA and LBCL bits */
bogdanm 0:9b334a45a8ff 1801 tmpreg &= (uint32_t)~((uint32_t)(USART_CR2_CPHA | USART_CR2_CPOL | USART_CR2_CLKEN | USART_CR2_LBCL | USART_CR2_STOP));
bogdanm 0:9b334a45a8ff 1802 /* Configure the USART Clock, CPOL, CPHA and LastBit -----------------------*/
bogdanm 0:9b334a45a8ff 1803 /* Set CPOL bit according to husart->Init.CLKPolarity value */
bogdanm 0:9b334a45a8ff 1804 /* Set CPHA bit according to husart->Init.CLKPhase value */
bogdanm 0:9b334a45a8ff 1805 /* Set LBCL bit according to husart->Init.CLKLastBit value */
bogdanm 0:9b334a45a8ff 1806 /* Set Stop Bits: Set STOP[13:12] bits according to husart->Init.StopBits value */
bogdanm 0:9b334a45a8ff 1807 tmpreg |= (uint32_t)(USART_CLOCK_ENABLE| husart->Init.CLKPolarity |
bogdanm 0:9b334a45a8ff 1808 husart->Init.CLKPhase| husart->Init.CLKLastBit | husart->Init.StopBits);
bogdanm 0:9b334a45a8ff 1809 /* Write to USART CR2 */
bogdanm 0:9b334a45a8ff 1810 husart->Instance->CR2 = (uint32_t)tmpreg;
bogdanm 0:9b334a45a8ff 1811
bogdanm 0:9b334a45a8ff 1812 /*-------------------------- USART CR1 Configuration -----------------------*/
bogdanm 0:9b334a45a8ff 1813 tmpreg = husart->Instance->CR1;
bogdanm 0:9b334a45a8ff 1814
bogdanm 0:9b334a45a8ff 1815 /* Clear M, PCE, PS, TE, RE and OVER8 bits */
bogdanm 0:9b334a45a8ff 1816 tmpreg &= (uint32_t)~((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | \
bogdanm 0:9b334a45a8ff 1817 USART_CR1_RE | USART_CR1_OVER8));
bogdanm 0:9b334a45a8ff 1818
bogdanm 0:9b334a45a8ff 1819 /* Configure the USART Word Length, Parity and mode:
bogdanm 0:9b334a45a8ff 1820 Set the M bits according to husart->Init.WordLength value
bogdanm 0:9b334a45a8ff 1821 Set PCE and PS bits according to husart->Init.Parity value
bogdanm 0:9b334a45a8ff 1822 Set TE and RE bits according to husart->Init.Mode value
bogdanm 0:9b334a45a8ff 1823 Force OVER8 bit to 1 in order to reach the max USART frequencies */
bogdanm 0:9b334a45a8ff 1824 tmpreg |= (uint32_t)husart->Init.WordLength | husart->Init.Parity | husart->Init.Mode | USART_CR1_OVER8;
bogdanm 0:9b334a45a8ff 1825
bogdanm 0:9b334a45a8ff 1826 /* Write to USART CR1 */
bogdanm 0:9b334a45a8ff 1827 husart->Instance->CR1 = (uint32_t)tmpreg;
bogdanm 0:9b334a45a8ff 1828
bogdanm 0:9b334a45a8ff 1829 /*-------------------------- USART CR3 Configuration -----------------------*/
bogdanm 0:9b334a45a8ff 1830 /* Clear CTSE and RTSE bits */
bogdanm 0:9b334a45a8ff 1831 husart->Instance->CR3 &= (uint32_t)~((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE));
bogdanm 0:9b334a45a8ff 1832
bogdanm 0:9b334a45a8ff 1833 /*-------------------------- USART BRR Configuration -----------------------*/
bogdanm 0:9b334a45a8ff 1834 if((husart->Instance == USART1) || (husart->Instance == USART6))
bogdanm 0:9b334a45a8ff 1835 {
bogdanm 0:9b334a45a8ff 1836 husart->Instance->BRR = USART_BRR(HAL_RCC_GetPCLK2Freq(), husart->Init.BaudRate);
bogdanm 0:9b334a45a8ff 1837 }
bogdanm 0:9b334a45a8ff 1838 else
bogdanm 0:9b334a45a8ff 1839 {
bogdanm 0:9b334a45a8ff 1840 husart->Instance->BRR = USART_BRR(HAL_RCC_GetPCLK1Freq(), husart->Init.BaudRate);
bogdanm 0:9b334a45a8ff 1841 }
bogdanm 0:9b334a45a8ff 1842 }
bogdanm 0:9b334a45a8ff 1843
bogdanm 0:9b334a45a8ff 1844 /**
bogdanm 0:9b334a45a8ff 1845 * @}
bogdanm 0:9b334a45a8ff 1846 */
bogdanm 0:9b334a45a8ff 1847
bogdanm 0:9b334a45a8ff 1848 #endif /* HAL_USART_MODULE_ENABLED */
bogdanm 0:9b334a45a8ff 1849 /**
bogdanm 0:9b334a45a8ff 1850 * @}
bogdanm 0:9b334a45a8ff 1851 */
bogdanm 0:9b334a45a8ff 1852
bogdanm 0:9b334a45a8ff 1853 /**
bogdanm 0:9b334a45a8ff 1854 * @}
bogdanm 0:9b334a45a8ff 1855 */
bogdanm 0:9b334a45a8ff 1856
bogdanm 0:9b334a45a8ff 1857 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/