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targets/cmsis/TARGET_STM/TARGET_STM32L4/stm32l4xx_hal_uart.c@637:ed69428d4850, 2015-12-22 (annotated)

Committer:
jaerts
Date:
Tue Dec 22 13:22:16 2015 +0000
Revision:
637:ed69428d4850
Parent:
610:813dcc80987e 
Add very shady LPC1768 CAN Filter implementation

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 610:813dcc80987e 1 /**
mbed_official 610:813dcc80987e 2 ******************************************************************************
mbed_official 610:813dcc80987e 3 * @file stm32l4xx_hal_uart.c
mbed_official 610:813dcc80987e 4 * @author MCD Application Team
mbed_official 610:813dcc80987e 5 * @version V1.0.0
mbed_official 610:813dcc80987e 6 * @date 26-June-2015
mbed_official 610:813dcc80987e 7 * @brief UART HAL module driver.
mbed_official 610:813dcc80987e 8 * This file provides firmware functions to manage the following
mbed_official 610:813dcc80987e 9 * functionalities of the Universal Asynchronous Receiver Transmitter Peripheral (UART).
mbed_official 610:813dcc80987e 10 * + Initialization and de-initialization functions
mbed_official 610:813dcc80987e 11 * + IO operation functions
mbed_official 610:813dcc80987e 12 * + Peripheral Control functions
mbed_official 610:813dcc80987e 13 *
mbed_official 610:813dcc80987e 14 *
mbed_official 610:813dcc80987e 15 @verbatim
mbed_official 610:813dcc80987e 16 ===============================================================================
mbed_official 610:813dcc80987e 17 ##### How to use this driver #####
mbed_official 610:813dcc80987e 18 ===============================================================================
mbed_official 610:813dcc80987e 19 [..]
mbed_official 610:813dcc80987e 20 The UART HAL driver can be used as follows:
mbed_official 610:813dcc80987e 21
mbed_official 610:813dcc80987e 22 (#) Declare a UART_HandleTypeDef handle structure (eg. UART_HandleTypeDef huart).
mbed_official 610:813dcc80987e 23 (#) Initialize the UART low level resources by implementing the HAL_UART_MspInit() API:
mbed_official 610:813dcc80987e 24 (++) Enable the USARTx interface clock.
mbed_official 610:813dcc80987e 25 (++) UART pins configuration:
mbed_official 610:813dcc80987e 26 (+++) Enable the clock for the UART GPIOs.
mbed_official 610:813dcc80987e 27 (+++) Configure these UART pins as alternate function pull-up.
mbed_official 610:813dcc80987e 28 (++) NVIC configuration if you need to use interrupt process (HAL_UART_Transmit_IT()
mbed_official 610:813dcc80987e 29 and HAL_UART_Receive_IT() APIs):
mbed_official 610:813dcc80987e 30 (+++) Configure the USARTx interrupt priority.
mbed_official 610:813dcc80987e 31 (+++) Enable the NVIC USART IRQ handle.
mbed_official 610:813dcc80987e 32 (++) UART interrupts handling:
mbed_official 610:813dcc80987e 33 -@@- The specific UART interrupts (Transmission complete interrupt,
mbed_official 610:813dcc80987e 34 RXNE interrupt and Error Interrupts) are managed using the macros
mbed_official 610:813dcc80987e 35 __HAL_UART_ENABLE_IT() and __HAL_UART_DISABLE_IT() inside the transmit and receive processes.
mbed_official 610:813dcc80987e 36 (++) DMA Configuration if you need to use DMA process (HAL_UART_Transmit_DMA()
mbed_official 610:813dcc80987e 37 and HAL_UART_Receive_DMA() APIs):
mbed_official 610:813dcc80987e 38 (+++) Declare a DMA handle structure for the Tx/Rx channel.
mbed_official 610:813dcc80987e 39 (+++) Enable the DMAx interface clock.
mbed_official 610:813dcc80987e 40 (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
mbed_official 610:813dcc80987e 41 (+++) Configure the DMA Tx/Rx channel.
mbed_official 610:813dcc80987e 42 (+++) Associate the initialized DMA handle to the UART DMA Tx/Rx handle.
mbed_official 610:813dcc80987e 43 (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx/Rx channel.
mbed_official 610:813dcc80987e 44
mbed_official 610:813dcc80987e 45 (#) Program the Baud Rate, Word Length, Stop Bit, Parity, Hardware
mbed_official 610:813dcc80987e 46 flow control and Mode (Receiver/Transmitter) in the huart handle Init structure.
mbed_official 610:813dcc80987e 47
mbed_official 610:813dcc80987e 48 (#) If required, program UART advanced features (TX/RX pins swap, auto Baud rate detection,...)
mbed_official 610:813dcc80987e 49 in the huart handle AdvancedInit structure.
mbed_official 610:813dcc80987e 50
mbed_official 610:813dcc80987e 51 (#) For the UART asynchronous mode, initialize the UART registers by calling
mbed_official 610:813dcc80987e 52 the HAL_UART_Init() API.
mbed_official 610:813dcc80987e 53
mbed_official 610:813dcc80987e 54 (#) For the UART Half duplex mode, initialize the UART registers by calling
mbed_official 610:813dcc80987e 55 the HAL_HalfDuplex_Init() API.
mbed_official 610:813dcc80987e 56
mbed_official 610:813dcc80987e 57 (#) For the UART LIN (Local Interconnection Network) mode, initialize the UART registers
mbed_official 610:813dcc80987e 58 by calling the HAL_LIN_Init() API.
mbed_official 610:813dcc80987e 59
mbed_official 610:813dcc80987e 60 (#) For the UART Multiprocessor mode, initialize the UART registers
mbed_official 610:813dcc80987e 61 by calling the HAL_MultiProcessor_Init() API.
mbed_official 610:813dcc80987e 62
mbed_official 610:813dcc80987e 63 (#) For the UART RS485 Driver Enabled mode, initialize the UART registers
mbed_official 610:813dcc80987e 64 by calling the HAL_RS485Ex_Init() API.
mbed_official 610:813dcc80987e 65
mbed_official 610:813dcc80987e 66 [..]
mbed_official 610:813dcc80987e 67 (@) These API's (HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_LIN_Init(), HAL_MultiProcessor_Init(),
mbed_official 610:813dcc80987e 68 also configure the low level Hardware GPIO, CLOCK, CORTEX...etc) by
mbed_official 610:813dcc80987e 69 calling the customized HAL_UART_MspInit() API.
mbed_official 610:813dcc80987e 70
mbed_official 610:813dcc80987e 71 @endverbatim
mbed_official 610:813dcc80987e 72 ******************************************************************************
mbed_official 610:813dcc80987e 73 * @attention
mbed_official 610:813dcc80987e 74 *
mbed_official 610:813dcc80987e 75 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
mbed_official 610:813dcc80987e 76 *
mbed_official 610:813dcc80987e 77 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 610:813dcc80987e 78 * are permitted provided that the following conditions are met:
mbed_official 610:813dcc80987e 79 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 610:813dcc80987e 80 * this list of conditions and the following disclaimer.
mbed_official 610:813dcc80987e 81 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 610:813dcc80987e 82 * this list of conditions and the following disclaimer in the documentation
mbed_official 610:813dcc80987e 83 * and/or other materials provided with the distribution.
mbed_official 610:813dcc80987e 84 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 610:813dcc80987e 85 * may be used to endorse or promote products derived from this software
mbed_official 610:813dcc80987e 86 * without specific prior written permission.
mbed_official 610:813dcc80987e 87 *
mbed_official 610:813dcc80987e 88 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 610:813dcc80987e 89 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 610:813dcc80987e 90 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 610:813dcc80987e 91 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 610:813dcc80987e 92 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 610:813dcc80987e 93 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 610:813dcc80987e 94 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 610:813dcc80987e 95 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 610:813dcc80987e 96 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 610:813dcc80987e 97 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 610:813dcc80987e 98 *
mbed_official 610:813dcc80987e 99 ******************************************************************************
mbed_official 610:813dcc80987e 100 */
mbed_official 610:813dcc80987e 101
mbed_official 610:813dcc80987e 102 /* Includes ------------------------------------------------------------------*/
mbed_official 610:813dcc80987e 103 #include "stm32l4xx_hal.h"
mbed_official 610:813dcc80987e 104
mbed_official 610:813dcc80987e 105 /** @addtogroup STM32L4xx_HAL_Driver
mbed_official 610:813dcc80987e 106 * @{
mbed_official 610:813dcc80987e 107 */
mbed_official 610:813dcc80987e 108
mbed_official 610:813dcc80987e 109 /** @defgroup UART UART
mbed_official 610:813dcc80987e 110 * @brief HAL UART module driver
mbed_official 610:813dcc80987e 111 * @{
mbed_official 610:813dcc80987e 112 */
mbed_official 610:813dcc80987e 113
mbed_official 610:813dcc80987e 114 #ifdef HAL_UART_MODULE_ENABLED
mbed_official 610:813dcc80987e 115
mbed_official 610:813dcc80987e 116 /* Private typedef -----------------------------------------------------------*/
mbed_official 610:813dcc80987e 117 /* Private define ------------------------------------------------------------*/
mbed_official 610:813dcc80987e 118 /** @defgroup UART_Private_Constants UART Private Constants
mbed_official 610:813dcc80987e 119 * @{
mbed_official 610:813dcc80987e 120 */
mbed_official 610:813dcc80987e 121 #define UART_CR1_FIELDS ((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | \
mbed_official 610:813dcc80987e 122 USART_CR1_TE | USART_CR1_RE | USART_CR1_OVER8)) /*!< UART or USART CR1 fields of parameters set by UART_SetConfig API */
mbed_official 610:813dcc80987e 123
mbed_official 610:813dcc80987e 124 #define UART_LPUART_BRR_MIN ((uint32_t)0x00000300) /* LPUART BRR minimum authorized value */
mbed_official 610:813dcc80987e 125 #define UART_LPUART_BRR_MAX ((uint32_t)0x000FFFFF) /* LPUART BRR maximum authorized value */
mbed_official 610:813dcc80987e 126 /**
mbed_official 610:813dcc80987e 127 * @}
mbed_official 610:813dcc80987e 128 */
mbed_official 610:813dcc80987e 129
mbed_official 610:813dcc80987e 130 /* Private macros ------------------------------------------------------------*/
mbed_official 610:813dcc80987e 131 /* Private variables ---------------------------------------------------------*/
mbed_official 610:813dcc80987e 132 /* Private function prototypes -----------------------------------------------*/
mbed_official 610:813dcc80987e 133 /** @addtogroup UART_Private_Functions
mbed_official 610:813dcc80987e 134 * @{
mbed_official 610:813dcc80987e 135 */
mbed_official 610:813dcc80987e 136 static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma);
mbed_official 610:813dcc80987e 137 static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
mbed_official 610:813dcc80987e 138 static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official 610:813dcc80987e 139 static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official 610:813dcc80987e 140 static void UART_DMAError(DMA_HandleTypeDef *hdma);
mbed_official 610:813dcc80987e 141 static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart);
mbed_official 610:813dcc80987e 142 static HAL_StatusTypeDef UART_EndTransmit_IT(UART_HandleTypeDef *huart);
mbed_official 610:813dcc80987e 143 static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart);
mbed_official 610:813dcc80987e 144 /**
mbed_official 610:813dcc80987e 145 * @}
mbed_official 610:813dcc80987e 146 */
mbed_official 610:813dcc80987e 147
mbed_official 610:813dcc80987e 148 /* Exported functions --------------------------------------------------------*/
mbed_official 610:813dcc80987e 149
mbed_official 610:813dcc80987e 150 /** @defgroup UART_Exported_Functions UART Exported Functions
mbed_official 610:813dcc80987e 151 * @{
mbed_official 610:813dcc80987e 152 */
mbed_official 610:813dcc80987e 153
mbed_official 610:813dcc80987e 154 /** @defgroup UART_Exported_Functions_Group1 Initialization and de-initialization functions
mbed_official 610:813dcc80987e 155 * @brief Initialization and Configuration functions
mbed_official 610:813dcc80987e 156 *
mbed_official 610:813dcc80987e 157 @verbatim
mbed_official 610:813dcc80987e 158 ===============================================================================
mbed_official 610:813dcc80987e 159 ##### Initialization and Configuration functions #####
mbed_official 610:813dcc80987e 160 ===============================================================================
mbed_official 610:813dcc80987e 161 [..]
mbed_official 610:813dcc80987e 162 This subsection provides a set of functions allowing to initialize the USARTx or the UARTy
mbed_official 610:813dcc80987e 163 in asynchronous mode.
mbed_official 610:813dcc80987e 164 (+) For the asynchronous mode the parameters below can be configured:
mbed_official 610:813dcc80987e 165 (++) Baud Rate
mbed_official 610:813dcc80987e 166 (++) Word Length
mbed_official 610:813dcc80987e 167 (++) Stop Bit
mbed_official 610:813dcc80987e 168 (++) Parity: If the parity is enabled, then the MSB bit of the data written
mbed_official 610:813dcc80987e 169 in the data register is transmitted but is changed by the parity bit.
mbed_official 610:813dcc80987e 170 Depending on the frame length defined by the M1 and M0 bits (7-bit,
mbed_official 610:813dcc80987e 171 8-bit or 9-bit), the possible UART frame formats are as listed in the following table:
mbed_official 610:813dcc80987e 172
mbed_official 610:813dcc80987e 173 (+++) Table 1. UART frame format.
mbed_official 610:813dcc80987e 174 (+++) +-----------------------------------------------------------------------+
mbed_official 610:813dcc80987e 175 (+++) | M1 bit | M0 bit | PCE bit | UART frame |
mbed_official 610:813dcc80987e 176 (+++) |---------|---------|-----------|---------------------------------------|
mbed_official 610:813dcc80987e 177 (+++) | 0 | 0 | 0 | | SB | 8 bit data | STB | |
mbed_official 610:813dcc80987e 178 (+++) |---------|---------|-----------|---------------------------------------|
mbed_official 610:813dcc80987e 179 (+++) | 0 | 0 | 1 | | SB | 7 bit data | PB | STB | |
mbed_official 610:813dcc80987e 180 (+++) |---------|---------|-----------|---------------------------------------|
mbed_official 610:813dcc80987e 181 (+++) | 0 | 1 | 0 | | SB | 9 bit data | STB | |
mbed_official 610:813dcc80987e 182 (+++) |---------|---------|-----------|---------------------------------------|
mbed_official 610:813dcc80987e 183 (+++) | 0 | 1 | 1 | | SB | 8 bit data | PB | STB | |
mbed_official 610:813dcc80987e 184 (+++) |---------|---------|-----------|---------------------------------------|
mbed_official 610:813dcc80987e 185 (+++) | 1 | 0 | 0 | | SB | 7 bit data | STB | |
mbed_official 610:813dcc80987e 186 (+++) |---------|---------|-----------|---------------------------------------|
mbed_official 610:813dcc80987e 187 (+++) | 1 | 0 | 1 | | SB | 6 bit data | PB | STB | |
mbed_official 610:813dcc80987e 188 (+++) +-----------------------------------------------------------------------+
mbed_official 610:813dcc80987e 189 (++) Hardware flow control
mbed_official 610:813dcc80987e 190 (++) Receiver/transmitter modes
mbed_official 610:813dcc80987e 191 (++) Over Sampling Method
mbed_official 610:813dcc80987e 192 (++) One-Bit Sampling Method
mbed_official 610:813dcc80987e 193 (+) For the asynchronous mode, the following advanced features can be configured as well:
mbed_official 610:813dcc80987e 194 (++) TX and/or RX pin level inversion
mbed_official 610:813dcc80987e 195 (++) data logical level inversion
mbed_official 610:813dcc80987e 196 (++) RX and TX pins swap
mbed_official 610:813dcc80987e 197 (++) RX overrun detection disabling
mbed_official 610:813dcc80987e 198 (++) DMA disabling on RX error
mbed_official 610:813dcc80987e 199 (++) MSB first on communication line
mbed_official 610:813dcc80987e 200 (++) auto Baud rate detection
mbed_official 610:813dcc80987e 201 [..]
mbed_official 610:813dcc80987e 202 The HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_LIN_Init()and HAL_MultiProcessor_Init()API
mbed_official 610:813dcc80987e 203 follow respectively the UART asynchronous, UART Half duplex, UART LIN mode
mbed_official 610:813dcc80987e 204 and UART multiprocessor mode configuration procedures (details for the procedures
mbed_official 610:813dcc80987e 205 are available in reference manual).
mbed_official 610:813dcc80987e 206
mbed_official 610:813dcc80987e 207 @endverbatim
mbed_official 610:813dcc80987e 208 * @{
mbed_official 610:813dcc80987e 209 */
mbed_official 610:813dcc80987e 210
mbed_official 610:813dcc80987e 211 /**
mbed_official 610:813dcc80987e 212 * @brief Initialize the UART mode according to the specified
mbed_official 610:813dcc80987e 213 * parameters in the UART_InitTypeDef and initialize the associated handle.
mbed_official 610:813dcc80987e 214 * @param huart: UART handle.
mbed_official 610:813dcc80987e 215 * @retval HAL status
mbed_official 610:813dcc80987e 216 */
mbed_official 610:813dcc80987e 217 HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 218 {
mbed_official 610:813dcc80987e 219 /* Check the UART handle allocation */
mbed_official 610:813dcc80987e 220 if(huart == NULL)
mbed_official 610:813dcc80987e 221 {
mbed_official 610:813dcc80987e 222 return HAL_ERROR;
mbed_official 610:813dcc80987e 223 }
mbed_official 610:813dcc80987e 224
mbed_official 610:813dcc80987e 225 if(huart->Init.HwFlowCtl != UART_HWCONTROL_NONE)
mbed_official 610:813dcc80987e 226 {
mbed_official 610:813dcc80987e 227 /* Check the parameters */
mbed_official 610:813dcc80987e 228 assert_param(IS_UART_HWFLOW_INSTANCE(huart->Instance));
mbed_official 610:813dcc80987e 229 }
mbed_official 610:813dcc80987e 230 else
mbed_official 610:813dcc80987e 231 {
mbed_official 610:813dcc80987e 232 /* Check the parameters */
mbed_official 610:813dcc80987e 233 assert_param(IS_UART_INSTANCE(huart->Instance));
mbed_official 610:813dcc80987e 234 }
mbed_official 610:813dcc80987e 235
mbed_official 610:813dcc80987e 236 if(huart->State == HAL_UART_STATE_RESET)
mbed_official 610:813dcc80987e 237 {
mbed_official 610:813dcc80987e 238 /* Allocate lock resource and initialize it */
mbed_official 610:813dcc80987e 239 huart->Lock = HAL_UNLOCKED;
mbed_official 610:813dcc80987e 240
mbed_official 610:813dcc80987e 241 /* Init the low level hardware : GPIO, CLOCK */
mbed_official 610:813dcc80987e 242 HAL_UART_MspInit(huart);
mbed_official 610:813dcc80987e 243 }
mbed_official 610:813dcc80987e 244
mbed_official 610:813dcc80987e 245 huart->State = HAL_UART_STATE_BUSY;
mbed_official 610:813dcc80987e 246
mbed_official 610:813dcc80987e 247 /* Disable the Peripheral */
mbed_official 610:813dcc80987e 248 __HAL_UART_DISABLE(huart);
mbed_official 610:813dcc80987e 249
mbed_official 610:813dcc80987e 250 /* Set the UART Communication parameters */
mbed_official 610:813dcc80987e 251 if (UART_SetConfig(huart) == HAL_ERROR)
mbed_official 610:813dcc80987e 252 {
mbed_official 610:813dcc80987e 253 return HAL_ERROR;
mbed_official 610:813dcc80987e 254 }
mbed_official 610:813dcc80987e 255
mbed_official 610:813dcc80987e 256 if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
mbed_official 610:813dcc80987e 257 {
mbed_official 610:813dcc80987e 258 UART_AdvFeatureConfig(huart);
mbed_official 610:813dcc80987e 259 }
mbed_official 610:813dcc80987e 260
mbed_official 610:813dcc80987e 261 /* In asynchronous mode, the following bits must be kept cleared:
mbed_official 610:813dcc80987e 262 - LINEN and CLKEN bits in the USART_CR2 register,
mbed_official 610:813dcc80987e 263 - SCEN, HDSEL and IREN bits in the USART_CR3 register.*/
mbed_official 610:813dcc80987e 264 huart->Instance->CR2 &= ~(USART_CR2_LINEN | USART_CR2_CLKEN);
mbed_official 610:813dcc80987e 265 huart->Instance->CR3 &= ~(USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN);
mbed_official 610:813dcc80987e 266
mbed_official 610:813dcc80987e 267 /* Enable the Peripheral */
mbed_official 610:813dcc80987e 268 __HAL_UART_ENABLE(huart);
mbed_official 610:813dcc80987e 269
mbed_official 610:813dcc80987e 270 /* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official 610:813dcc80987e 271 return (UART_CheckIdleState(huart));
mbed_official 610:813dcc80987e 272 }
mbed_official 610:813dcc80987e 273
mbed_official 610:813dcc80987e 274 /**
mbed_official 610:813dcc80987e 275 * @brief Initialize the half-duplex mode according to the specified
mbed_official 610:813dcc80987e 276 * parameters in the UART_InitTypeDef and creates the associated handle.
mbed_official 610:813dcc80987e 277 * @param huart: UART handle.
mbed_official 610:813dcc80987e 278 * @retval HAL status
mbed_official 610:813dcc80987e 279 */
mbed_official 610:813dcc80987e 280 HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 281 {
mbed_official 610:813dcc80987e 282 /* Check the UART handle allocation */
mbed_official 610:813dcc80987e 283 if(huart == NULL)
mbed_official 610:813dcc80987e 284 {
mbed_official 610:813dcc80987e 285 return HAL_ERROR;
mbed_official 610:813dcc80987e 286 }
mbed_official 610:813dcc80987e 287
mbed_official 610:813dcc80987e 288 /* Check UART instance */
mbed_official 610:813dcc80987e 289 assert_param(IS_UART_HALFDUPLEX_INSTANCE(huart->Instance));
mbed_official 610:813dcc80987e 290
mbed_official 610:813dcc80987e 291 if(huart->State == HAL_UART_STATE_RESET)
mbed_official 610:813dcc80987e 292 {
mbed_official 610:813dcc80987e 293 /* Allocate lock resource and initialize it */
mbed_official 610:813dcc80987e 294 huart->Lock = HAL_UNLOCKED;
mbed_official 610:813dcc80987e 295
mbed_official 610:813dcc80987e 296 /* Init the low level hardware : GPIO, CLOCK */
mbed_official 610:813dcc80987e 297 HAL_UART_MspInit(huart);
mbed_official 610:813dcc80987e 298 }
mbed_official 610:813dcc80987e 299
mbed_official 610:813dcc80987e 300 huart->State = HAL_UART_STATE_BUSY;
mbed_official 610:813dcc80987e 301
mbed_official 610:813dcc80987e 302 /* Disable the Peripheral */
mbed_official 610:813dcc80987e 303 __HAL_UART_DISABLE(huart);
mbed_official 610:813dcc80987e 304
mbed_official 610:813dcc80987e 305 /* Set the UART Communication parameters */
mbed_official 610:813dcc80987e 306 if (UART_SetConfig(huart) == HAL_ERROR)
mbed_official 610:813dcc80987e 307 {
mbed_official 610:813dcc80987e 308 return HAL_ERROR;
mbed_official 610:813dcc80987e 309 }
mbed_official 610:813dcc80987e 310
mbed_official 610:813dcc80987e 311 if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
mbed_official 610:813dcc80987e 312 {
mbed_official 610:813dcc80987e 313 UART_AdvFeatureConfig(huart);
mbed_official 610:813dcc80987e 314 }
mbed_official 610:813dcc80987e 315
mbed_official 610:813dcc80987e 316 /* In half-duplex mode, the following bits must be kept cleared:
mbed_official 610:813dcc80987e 317 - LINEN and CLKEN bits in the USART_CR2 register,
mbed_official 610:813dcc80987e 318 - SCEN and IREN bits in the USART_CR3 register.*/
mbed_official 610:813dcc80987e 319 huart->Instance->CR2 &= ~(USART_CR2_LINEN | USART_CR2_CLKEN);
mbed_official 610:813dcc80987e 320 huart->Instance->CR3 &= ~(USART_CR3_IREN | USART_CR3_SCEN);
mbed_official 610:813dcc80987e 321
mbed_official 610:813dcc80987e 322 /* Enable the Half-Duplex mode by setting the HDSEL bit in the CR3 register */
mbed_official 610:813dcc80987e 323 huart->Instance->CR3 |= USART_CR3_HDSEL;
mbed_official 610:813dcc80987e 324
mbed_official 610:813dcc80987e 325 /* Enable the Peripheral */
mbed_official 610:813dcc80987e 326 __HAL_UART_ENABLE(huart);
mbed_official 610:813dcc80987e 327
mbed_official 610:813dcc80987e 328 /* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official 610:813dcc80987e 329 return (UART_CheckIdleState(huart));
mbed_official 610:813dcc80987e 330 }
mbed_official 610:813dcc80987e 331
mbed_official 610:813dcc80987e 332
mbed_official 610:813dcc80987e 333 /**
mbed_official 610:813dcc80987e 334 * @brief Initialize the LIN mode according to the specified
mbed_official 610:813dcc80987e 335 * parameters in the UART_InitTypeDef and creates the associated handle .
mbed_official 610:813dcc80987e 336 * @param huart: UART handle.
mbed_official 610:813dcc80987e 337 * @param BreakDetectLength: specifies the LIN break detection length.
mbed_official 610:813dcc80987e 338 * This parameter can be one of the following values:
mbed_official 610:813dcc80987e 339 * @arg UART_LINBREAKDETECTLENGTH_10B: 10-bit break detection
mbed_official 610:813dcc80987e 340 * @arg UART_LINBREAKDETECTLENGTH_11B: 11-bit break detection
mbed_official 610:813dcc80987e 341 * @retval HAL status
mbed_official 610:813dcc80987e 342 */
mbed_official 610:813dcc80987e 343 HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength)
mbed_official 610:813dcc80987e 344 {
mbed_official 610:813dcc80987e 345 /* Check the UART handle allocation */
mbed_official 610:813dcc80987e 346 if(huart == NULL)
mbed_official 610:813dcc80987e 347 {
mbed_official 610:813dcc80987e 348 return HAL_ERROR;
mbed_official 610:813dcc80987e 349 }
mbed_official 610:813dcc80987e 350
mbed_official 610:813dcc80987e 351 /* Check the LIN UART instance */
mbed_official 610:813dcc80987e 352 assert_param(IS_UART_LIN_INSTANCE(huart->Instance));
mbed_official 610:813dcc80987e 353 /* Check the Break detection length parameter */
mbed_official 610:813dcc80987e 354 assert_param(IS_UART_LIN_BREAK_DETECT_LENGTH(BreakDetectLength));
mbed_official 610:813dcc80987e 355
mbed_official 610:813dcc80987e 356 /* LIN mode limited to 16-bit oversampling only */
mbed_official 610:813dcc80987e 357 if(huart->Init.OverSampling == UART_OVERSAMPLING_8)
mbed_official 610:813dcc80987e 358 {
mbed_official 610:813dcc80987e 359 return HAL_ERROR;
mbed_official 610:813dcc80987e 360 }
mbed_official 610:813dcc80987e 361 /* LIN mode limited to 8-bit data length */
mbed_official 610:813dcc80987e 362 if(huart->Init.WordLength != UART_WORDLENGTH_8B)
mbed_official 610:813dcc80987e 363 {
mbed_official 610:813dcc80987e 364 return HAL_ERROR;
mbed_official 610:813dcc80987e 365 }
mbed_official 610:813dcc80987e 366
mbed_official 610:813dcc80987e 367 if(huart->State == HAL_UART_STATE_RESET)
mbed_official 610:813dcc80987e 368 {
mbed_official 610:813dcc80987e 369 /* Allocate lock resource and initialize it */
mbed_official 610:813dcc80987e 370 huart->Lock = HAL_UNLOCKED;
mbed_official 610:813dcc80987e 371
mbed_official 610:813dcc80987e 372 /* Init the low level hardware : GPIO, CLOCK */
mbed_official 610:813dcc80987e 373 HAL_UART_MspInit(huart);
mbed_official 610:813dcc80987e 374 }
mbed_official 610:813dcc80987e 375
mbed_official 610:813dcc80987e 376 huart->State = HAL_UART_STATE_BUSY;
mbed_official 610:813dcc80987e 377
mbed_official 610:813dcc80987e 378 /* Disable the Peripheral */
mbed_official 610:813dcc80987e 379 __HAL_UART_DISABLE(huart);
mbed_official 610:813dcc80987e 380
mbed_official 610:813dcc80987e 381 /* Set the UART Communication parameters */
mbed_official 610:813dcc80987e 382 if (UART_SetConfig(huart) == HAL_ERROR)
mbed_official 610:813dcc80987e 383 {
mbed_official 610:813dcc80987e 384 return HAL_ERROR;
mbed_official 610:813dcc80987e 385 }
mbed_official 610:813dcc80987e 386
mbed_official 610:813dcc80987e 387 if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
mbed_official 610:813dcc80987e 388 {
mbed_official 610:813dcc80987e 389 UART_AdvFeatureConfig(huart);
mbed_official 610:813dcc80987e 390 }
mbed_official 610:813dcc80987e 391
mbed_official 610:813dcc80987e 392 /* In LIN mode, the following bits must be kept cleared:
mbed_official 610:813dcc80987e 393 - LINEN and CLKEN bits in the USART_CR2 register,
mbed_official 610:813dcc80987e 394 - SCEN and IREN bits in the USART_CR3 register.*/
mbed_official 610:813dcc80987e 395 huart->Instance->CR2 &= ~(USART_CR2_CLKEN);
mbed_official 610:813dcc80987e 396 huart->Instance->CR3 &= ~(USART_CR3_HDSEL | USART_CR3_IREN | USART_CR3_SCEN);
mbed_official 610:813dcc80987e 397
mbed_official 610:813dcc80987e 398 /* Enable the LIN mode by setting the LINEN bit in the CR2 register */
mbed_official 610:813dcc80987e 399 huart->Instance->CR2 |= USART_CR2_LINEN;
mbed_official 610:813dcc80987e 400
mbed_official 610:813dcc80987e 401 /* Set the USART LIN Break detection length. */
mbed_official 610:813dcc80987e 402 MODIFY_REG(huart->Instance->CR2, USART_CR2_LBDL, BreakDetectLength);
mbed_official 610:813dcc80987e 403
mbed_official 610:813dcc80987e 404 /* Enable the Peripheral */
mbed_official 610:813dcc80987e 405 __HAL_UART_ENABLE(huart);
mbed_official 610:813dcc80987e 406
mbed_official 610:813dcc80987e 407 /* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official 610:813dcc80987e 408 return (UART_CheckIdleState(huart));
mbed_official 610:813dcc80987e 409 }
mbed_official 610:813dcc80987e 410
mbed_official 610:813dcc80987e 411
mbed_official 610:813dcc80987e 412
mbed_official 610:813dcc80987e 413 /**
mbed_official 610:813dcc80987e 414 * @brief Initialize the multiprocessor mode according to the specified
mbed_official 610:813dcc80987e 415 * parameters in the UART_InitTypeDef and initialize the associated handle.
mbed_official 610:813dcc80987e 416 * @param huart: UART handle.
mbed_official 610:813dcc80987e 417 * @param Address: UART node address (4-, 6-, 7- or 8-bit long).
mbed_official 610:813dcc80987e 418 * @param WakeUpMethod: specifies the UART wakeup method.
mbed_official 610:813dcc80987e 419 * This parameter can be one of the following values:
mbed_official 610:813dcc80987e 420 * @arg UART_WAKEUPMETHOD_IDLELINE: WakeUp by an idle line detection
mbed_official 610:813dcc80987e 421 * @arg UART_WAKEUPMETHOD_ADDRESSMARK: WakeUp by an address mark
mbed_official 610:813dcc80987e 422 * @note If the user resorts to idle line detection wake up, the Address parameter
mbed_official 610:813dcc80987e 423 * is useless and ignored by the initialization function.
mbed_official 610:813dcc80987e 424 * @note If the user resorts to address mark wake up, the address length detection
mbed_official 610:813dcc80987e 425 * is configured by default to 4 bits only. For the UART to be able to
mbed_official 610:813dcc80987e 426 * manage 6-, 7- or 8-bit long addresses detection, the API
mbed_official 610:813dcc80987e 427 * HAL_MultiProcessorEx_AddressLength_Set() must be called after
mbed_official 610:813dcc80987e 428 * HAL_MultiProcessor_Init().
mbed_official 610:813dcc80987e 429 * @retval HAL status
mbed_official 610:813dcc80987e 430 */
mbed_official 610:813dcc80987e 431 HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod)
mbed_official 610:813dcc80987e 432 {
mbed_official 610:813dcc80987e 433 /* Check the UART handle allocation */
mbed_official 610:813dcc80987e 434 if(huart == NULL)
mbed_official 610:813dcc80987e 435 {
mbed_official 610:813dcc80987e 436 return HAL_ERROR;
mbed_official 610:813dcc80987e 437 }
mbed_official 610:813dcc80987e 438
mbed_official 610:813dcc80987e 439 /* Check the wake up method parameter */
mbed_official 610:813dcc80987e 440 assert_param(IS_UART_WAKEUPMETHOD(WakeUpMethod));
mbed_official 610:813dcc80987e 441
mbed_official 610:813dcc80987e 442 if(huart->State == HAL_UART_STATE_RESET)
mbed_official 610:813dcc80987e 443 {
mbed_official 610:813dcc80987e 444 /* Allocate lock resource and initialize it */
mbed_official 610:813dcc80987e 445 huart->Lock = HAL_UNLOCKED;
mbed_official 610:813dcc80987e 446
mbed_official 610:813dcc80987e 447 /* Init the low level hardware : GPIO, CLOCK */
mbed_official 610:813dcc80987e 448 HAL_UART_MspInit(huart);
mbed_official 610:813dcc80987e 449 }
mbed_official 610:813dcc80987e 450
mbed_official 610:813dcc80987e 451 huart->State = HAL_UART_STATE_BUSY;
mbed_official 610:813dcc80987e 452
mbed_official 610:813dcc80987e 453 /* Disable the Peripheral */
mbed_official 610:813dcc80987e 454 __HAL_UART_DISABLE(huart);
mbed_official 610:813dcc80987e 455
mbed_official 610:813dcc80987e 456 /* Set the UART Communication parameters */
mbed_official 610:813dcc80987e 457 if (UART_SetConfig(huart) == HAL_ERROR)
mbed_official 610:813dcc80987e 458 {
mbed_official 610:813dcc80987e 459 return HAL_ERROR;
mbed_official 610:813dcc80987e 460 }
mbed_official 610:813dcc80987e 461
mbed_official 610:813dcc80987e 462 if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
mbed_official 610:813dcc80987e 463 {
mbed_official 610:813dcc80987e 464 UART_AdvFeatureConfig(huart);
mbed_official 610:813dcc80987e 465 }
mbed_official 610:813dcc80987e 466
mbed_official 610:813dcc80987e 467 /* In multiprocessor mode, the following bits must be kept cleared:
mbed_official 610:813dcc80987e 468 - LINEN and CLKEN bits in the USART_CR2 register,
mbed_official 610:813dcc80987e 469 - SCEN, HDSEL and IREN bits in the USART_CR3 register. */
mbed_official 610:813dcc80987e 470 huart->Instance->CR2 &= ~(USART_CR2_LINEN | USART_CR2_CLKEN);
mbed_official 610:813dcc80987e 471 huart->Instance->CR3 &= ~(USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN);
mbed_official 610:813dcc80987e 472
mbed_official 610:813dcc80987e 473 if (WakeUpMethod == UART_WAKEUPMETHOD_ADDRESSMARK)
mbed_official 610:813dcc80987e 474 {
mbed_official 610:813dcc80987e 475 /* If address mark wake up method is chosen, set the USART address node */
mbed_official 610:813dcc80987e 476 MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, ((uint32_t)Address << UART_CR2_ADDRESS_LSB_POS));
mbed_official 610:813dcc80987e 477 }
mbed_official 610:813dcc80987e 478
mbed_official 610:813dcc80987e 479 /* Set the wake up method by setting the WAKE bit in the CR1 register */
mbed_official 610:813dcc80987e 480 MODIFY_REG(huart->Instance->CR1, USART_CR1_WAKE, WakeUpMethod);
mbed_official 610:813dcc80987e 481
mbed_official 610:813dcc80987e 482 /* Enable the Peripheral */
mbed_official 610:813dcc80987e 483 __HAL_UART_ENABLE(huart);
mbed_official 610:813dcc80987e 484
mbed_official 610:813dcc80987e 485 /* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official 610:813dcc80987e 486 return (UART_CheckIdleState(huart));
mbed_official 610:813dcc80987e 487 }
mbed_official 610:813dcc80987e 488
mbed_official 610:813dcc80987e 489
mbed_official 610:813dcc80987e 490
mbed_official 610:813dcc80987e 491
mbed_official 610:813dcc80987e 492 /**
mbed_official 610:813dcc80987e 493 * @brief DeInitialize the UART peripheral.
mbed_official 610:813dcc80987e 494 * @param huart: UART handle.
mbed_official 610:813dcc80987e 495 * @retval HAL status
mbed_official 610:813dcc80987e 496 */
mbed_official 610:813dcc80987e 497 HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 498 {
mbed_official 610:813dcc80987e 499 /* Check the UART handle allocation */
mbed_official 610:813dcc80987e 500 if(huart == NULL)
mbed_official 610:813dcc80987e 501 {
mbed_official 610:813dcc80987e 502 return HAL_ERROR;
mbed_official 610:813dcc80987e 503 }
mbed_official 610:813dcc80987e 504
mbed_official 610:813dcc80987e 505 /* Check the parameters */
mbed_official 610:813dcc80987e 506 assert_param(IS_UART_INSTANCE(huart->Instance));
mbed_official 610:813dcc80987e 507
mbed_official 610:813dcc80987e 508 huart->State = HAL_UART_STATE_BUSY;
mbed_official 610:813dcc80987e 509
mbed_official 610:813dcc80987e 510 /* Disable the Peripheral */
mbed_official 610:813dcc80987e 511 __HAL_UART_DISABLE(huart);
mbed_official 610:813dcc80987e 512
mbed_official 610:813dcc80987e 513 huart->Instance->CR1 = 0x0;
mbed_official 610:813dcc80987e 514 huart->Instance->CR2 = 0x0;
mbed_official 610:813dcc80987e 515 huart->Instance->CR3 = 0x0;
mbed_official 610:813dcc80987e 516
mbed_official 610:813dcc80987e 517 /* DeInit the low level hardware */
mbed_official 610:813dcc80987e 518 HAL_UART_MspDeInit(huart);
mbed_official 610:813dcc80987e 519
mbed_official 610:813dcc80987e 520 huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official 610:813dcc80987e 521 huart->State = HAL_UART_STATE_RESET;
mbed_official 610:813dcc80987e 522
mbed_official 610:813dcc80987e 523 /* Process Unlock */
mbed_official 610:813dcc80987e 524 __HAL_UNLOCK(huart);
mbed_official 610:813dcc80987e 525
mbed_official 610:813dcc80987e 526 return HAL_OK;
mbed_official 610:813dcc80987e 527 }
mbed_official 610:813dcc80987e 528
mbed_official 610:813dcc80987e 529 /**
mbed_official 610:813dcc80987e 530 * @brief Initialize the UART MSP.
mbed_official 610:813dcc80987e 531 * @param huart: UART handle.
mbed_official 610:813dcc80987e 532 * @retval None
mbed_official 610:813dcc80987e 533 */
mbed_official 610:813dcc80987e 534 __weak void HAL_UART_MspInit(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 535 {
mbed_official 610:813dcc80987e 536 /* NOTE : This function should not be modified, when the callback is needed,
mbed_official 610:813dcc80987e 537 the HAL_UART_MspInit can be implemented in the user file
mbed_official 610:813dcc80987e 538 */
mbed_official 610:813dcc80987e 539 }
mbed_official 610:813dcc80987e 540
mbed_official 610:813dcc80987e 541 /**
mbed_official 610:813dcc80987e 542 * @brief DeInitialize the UART MSP.
mbed_official 610:813dcc80987e 543 * @param huart: UART handle.
mbed_official 610:813dcc80987e 544 * @retval None
mbed_official 610:813dcc80987e 545 */
mbed_official 610:813dcc80987e 546 __weak void HAL_UART_MspDeInit(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 547 {
mbed_official 610:813dcc80987e 548 /* NOTE : This function should not be modified, when the callback is needed,
mbed_official 610:813dcc80987e 549 the HAL_UART_MspDeInit can be implemented in the user file
mbed_official 610:813dcc80987e 550 */
mbed_official 610:813dcc80987e 551 }
mbed_official 610:813dcc80987e 552
mbed_official 610:813dcc80987e 553 /**
mbed_official 610:813dcc80987e 554 * @}
mbed_official 610:813dcc80987e 555 */
mbed_official 610:813dcc80987e 556
mbed_official 610:813dcc80987e 557 /** @defgroup UART_Exported_Functions_Group2 IO operation functions
mbed_official 610:813dcc80987e 558 * @brief UART Transmit/Receive functions
mbed_official 610:813dcc80987e 559 *
mbed_official 610:813dcc80987e 560 @verbatim
mbed_official 610:813dcc80987e 561 ===============================================================================
mbed_official 610:813dcc80987e 562 ##### IO operation functions #####
mbed_official 610:813dcc80987e 563 ===============================================================================
mbed_official 610:813dcc80987e 564 This subsection provides a set of functions allowing to manage the UART asynchronous
mbed_official 610:813dcc80987e 565 and Half duplex data transfers.
mbed_official 610:813dcc80987e 566
mbed_official 610:813dcc80987e 567 (#) There are two mode of transfer:
mbed_official 610:813dcc80987e 568 (+) Blocking mode: The communication is performed in polling mode.
mbed_official 610:813dcc80987e 569 The HAL status of all data processing is returned by the same function
mbed_official 610:813dcc80987e 570 after finishing transfer.
mbed_official 610:813dcc80987e 571 (+) No-Blocking mode: The communication is performed using Interrupts
mbed_official 610:813dcc80987e 572 or DMA, These API's return the HAL status.
mbed_official 610:813dcc80987e 573 The end of the data processing will be indicated through the
mbed_official 610:813dcc80987e 574 dedicated UART IRQ when using Interrupt mode or the DMA IRQ when
mbed_official 610:813dcc80987e 575 using DMA mode.
mbed_official 610:813dcc80987e 576 The HAL_UART_TxCpltCallback(), HAL_UART_RxCpltCallback() user callbacks
mbed_official 610:813dcc80987e 577 will be executed respectively at the end of the transmit or Receive process
mbed_official 610:813dcc80987e 578 The HAL_UART_ErrorCallback()user callback will be executed when a communication error is detected
mbed_official 610:813dcc80987e 579
mbed_official 610:813dcc80987e 580 (#) Blocking mode API's are :
mbed_official 610:813dcc80987e 581 (+) HAL_UART_Transmit()
mbed_official 610:813dcc80987e 582 (+) HAL_UART_Receive()
mbed_official 610:813dcc80987e 583
mbed_official 610:813dcc80987e 584 (#) Non-Blocking mode API's with Interrupt are :
mbed_official 610:813dcc80987e 585 (+) HAL_UART_Transmit_IT()
mbed_official 610:813dcc80987e 586 (+) HAL_UART_Receive_IT()
mbed_official 610:813dcc80987e 587 (+) HAL_UART_IRQHandler()
mbed_official 610:813dcc80987e 588
mbed_official 610:813dcc80987e 589 (#) No-Blocking mode API's with DMA are :
mbed_official 610:813dcc80987e 590 (+) HAL_UART_Transmit_DMA()
mbed_official 610:813dcc80987e 591 (+) HAL_UART_Receive_DMA()
mbed_official 610:813dcc80987e 592 (+) HAL_UART_DMAPause()
mbed_official 610:813dcc80987e 593 (+) HAL_UART_DMAResume()
mbed_official 610:813dcc80987e 594 (+) HAL_UART_DMAStop()
mbed_official 610:813dcc80987e 595
mbed_official 610:813dcc80987e 596 (#) A set of Transfer Complete Callbacks are provided in No_Blocking mode:
mbed_official 610:813dcc80987e 597 (+) HAL_UART_TxHalfCpltCallback()
mbed_official 610:813dcc80987e 598 (+) HAL_UART_TxCpltCallback()
mbed_official 610:813dcc80987e 599 (+) HAL_UART_RxHalfCpltCallback()
mbed_official 610:813dcc80987e 600 (+) HAL_UART_RxCpltCallback()
mbed_official 610:813dcc80987e 601 (+) HAL_UART_ErrorCallback()
mbed_official 610:813dcc80987e 602
mbed_official 610:813dcc80987e 603
mbed_official 610:813dcc80987e 604 -@- In the Half duplex communication, it is forbidden to run the transmit
mbed_official 610:813dcc80987e 605 and receive process in parallel, the UART state HAL_UART_STATE_BUSY_TX_RX can't be useful.
mbed_official 610:813dcc80987e 606
mbed_official 610:813dcc80987e 607 @endverbatim
mbed_official 610:813dcc80987e 608 * @{
mbed_official 610:813dcc80987e 609 */
mbed_official 610:813dcc80987e 610
mbed_official 610:813dcc80987e 611 /**
mbed_official 610:813dcc80987e 612 * @brief Send an amount of data in blocking mode.
mbed_official 610:813dcc80987e 613 * @param huart: UART handle.
mbed_official 610:813dcc80987e 614 * @param pData: Pointer to data buffer.
mbed_official 610:813dcc80987e 615 * @param Size: Amount of data to be sent.
mbed_official 610:813dcc80987e 616 * @param Timeout: Timeout duration.
mbed_official 610:813dcc80987e 617 * @retval HAL status
mbed_official 610:813dcc80987e 618 */
mbed_official 610:813dcc80987e 619 HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout)
mbed_official 610:813dcc80987e 620 {
mbed_official 610:813dcc80987e 621 uint16_t* tmp;
mbed_official 610:813dcc80987e 622
mbed_official 610:813dcc80987e 623 if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_RX))
mbed_official 610:813dcc80987e 624 {
mbed_official 610:813dcc80987e 625 if((pData == NULL ) || (Size == 0))
mbed_official 610:813dcc80987e 626 {
mbed_official 610:813dcc80987e 627 return HAL_ERROR;
mbed_official 610:813dcc80987e 628 }
mbed_official 610:813dcc80987e 629
mbed_official 610:813dcc80987e 630 /* Process Locked */
mbed_official 610:813dcc80987e 631 __HAL_LOCK(huart);
mbed_official 610:813dcc80987e 632
mbed_official 610:813dcc80987e 633 huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official 610:813dcc80987e 634 /* Check if a non-blocking receive process is ongoing or not */
mbed_official 610:813dcc80987e 635 if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official 610:813dcc80987e 636 {
mbed_official 610:813dcc80987e 637 huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official 610:813dcc80987e 638 }
mbed_official 610:813dcc80987e 639 else
mbed_official 610:813dcc80987e 640 {
mbed_official 610:813dcc80987e 641 huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official 610:813dcc80987e 642 }
mbed_official 610:813dcc80987e 643
mbed_official 610:813dcc80987e 644 huart->TxXferSize = Size;
mbed_official 610:813dcc80987e 645 huart->TxXferCount = Size;
mbed_official 610:813dcc80987e 646 while(huart->TxXferCount > 0)
mbed_official 610:813dcc80987e 647 {
mbed_official 610:813dcc80987e 648 huart->TxXferCount--;
mbed_official 610:813dcc80987e 649 if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, Timeout) != HAL_OK)
mbed_official 610:813dcc80987e 650 {
mbed_official 610:813dcc80987e 651 return HAL_TIMEOUT;
mbed_official 610:813dcc80987e 652 }
mbed_official 610:813dcc80987e 653 if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official 610:813dcc80987e 654 {
mbed_official 610:813dcc80987e 655 tmp = (uint16_t*) pData;
mbed_official 610:813dcc80987e 656 huart->Instance->TDR = (*tmp & (uint16_t)0x01FF);
mbed_official 610:813dcc80987e 657 pData += 2;
mbed_official 610:813dcc80987e 658 }
mbed_official 610:813dcc80987e 659 else
mbed_official 610:813dcc80987e 660 {
mbed_official 610:813dcc80987e 661 huart->Instance->TDR = (*pData++ & (uint8_t)0xFF);
mbed_official 610:813dcc80987e 662 }
mbed_official 610:813dcc80987e 663 }
mbed_official 610:813dcc80987e 664 if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, Timeout) != HAL_OK)
mbed_official 610:813dcc80987e 665 {
mbed_official 610:813dcc80987e 666 return HAL_TIMEOUT;
mbed_official 610:813dcc80987e 667 }
mbed_official 610:813dcc80987e 668 /* Check if a non-blocking receive Process is ongoing or not */
mbed_official 610:813dcc80987e 669 if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official 610:813dcc80987e 670 {
mbed_official 610:813dcc80987e 671 huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official 610:813dcc80987e 672 }
mbed_official 610:813dcc80987e 673 else
mbed_official 610:813dcc80987e 674 {
mbed_official 610:813dcc80987e 675 huart->State = HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 676 }
mbed_official 610:813dcc80987e 677
mbed_official 610:813dcc80987e 678 /* Process Unlocked */
mbed_official 610:813dcc80987e 679 __HAL_UNLOCK(huart);
mbed_official 610:813dcc80987e 680
mbed_official 610:813dcc80987e 681 return HAL_OK;
mbed_official 610:813dcc80987e 682 }
mbed_official 610:813dcc80987e 683 else
mbed_official 610:813dcc80987e 684 {
mbed_official 610:813dcc80987e 685 return HAL_BUSY;
mbed_official 610:813dcc80987e 686 }
mbed_official 610:813dcc80987e 687 }
mbed_official 610:813dcc80987e 688
mbed_official 610:813dcc80987e 689 /**
mbed_official 610:813dcc80987e 690 * @brief Receive an amount of data in blocking mode.
mbed_official 610:813dcc80987e 691 * @param huart: UART handle.
mbed_official 610:813dcc80987e 692 * @param pData: pointer to data buffer.
mbed_official 610:813dcc80987e 693 * @param Size: amount of data to be received.
mbed_official 610:813dcc80987e 694 * @param Timeout: Timeout duration.
mbed_official 610:813dcc80987e 695 * @retval HAL status
mbed_official 610:813dcc80987e 696 */
mbed_official 610:813dcc80987e 697 HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout)
mbed_official 610:813dcc80987e 698 {
mbed_official 610:813dcc80987e 699 uint16_t* tmp;
mbed_official 610:813dcc80987e 700 uint16_t uhMask;
mbed_official 610:813dcc80987e 701
mbed_official 610:813dcc80987e 702 if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_TX))
mbed_official 610:813dcc80987e 703 {
mbed_official 610:813dcc80987e 704 if((pData == NULL ) || (Size == 0))
mbed_official 610:813dcc80987e 705 {
mbed_official 610:813dcc80987e 706 return HAL_ERROR;
mbed_official 610:813dcc80987e 707 }
mbed_official 610:813dcc80987e 708
mbed_official 610:813dcc80987e 709 /* Process Locked */
mbed_official 610:813dcc80987e 710 __HAL_LOCK(huart);
mbed_official 610:813dcc80987e 711
mbed_official 610:813dcc80987e 712 huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official 610:813dcc80987e 713 /* Check if a non-blocking transmit process is ongoing or not */
mbed_official 610:813dcc80987e 714 if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official 610:813dcc80987e 715 {
mbed_official 610:813dcc80987e 716 huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official 610:813dcc80987e 717 }
mbed_official 610:813dcc80987e 718 else
mbed_official 610:813dcc80987e 719 {
mbed_official 610:813dcc80987e 720 huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official 610:813dcc80987e 721 }
mbed_official 610:813dcc80987e 722
mbed_official 610:813dcc80987e 723 huart->RxXferSize = Size;
mbed_official 610:813dcc80987e 724 huart->RxXferCount = Size;
mbed_official 610:813dcc80987e 725
mbed_official 610:813dcc80987e 726 /* Computation of UART mask to apply to RDR register */
mbed_official 610:813dcc80987e 727 UART_MASK_COMPUTATION(huart);
mbed_official 610:813dcc80987e 728 uhMask = huart->Mask;
mbed_official 610:813dcc80987e 729
mbed_official 610:813dcc80987e 730 /* as long as data have to be received */
mbed_official 610:813dcc80987e 731 while(huart->RxXferCount > 0)
mbed_official 610:813dcc80987e 732 {
mbed_official 610:813dcc80987e 733 huart->RxXferCount--;
mbed_official 610:813dcc80987e 734 if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
mbed_official 610:813dcc80987e 735 {
mbed_official 610:813dcc80987e 736 return HAL_TIMEOUT;
mbed_official 610:813dcc80987e 737 }
mbed_official 610:813dcc80987e 738 if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official 610:813dcc80987e 739 {
mbed_official 610:813dcc80987e 740 tmp = (uint16_t*) pData ;
mbed_official 610:813dcc80987e 741 *tmp = (uint16_t)(huart->Instance->RDR & uhMask);
mbed_official 610:813dcc80987e 742 pData +=2;
mbed_official 610:813dcc80987e 743 }
mbed_official 610:813dcc80987e 744 else
mbed_official 610:813dcc80987e 745 {
mbed_official 610:813dcc80987e 746 *pData++ = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask);
mbed_official 610:813dcc80987e 747 }
mbed_official 610:813dcc80987e 748 }
mbed_official 610:813dcc80987e 749
mbed_official 610:813dcc80987e 750 /* Check if a non-blocking transmit Process is ongoing or not */
mbed_official 610:813dcc80987e 751 if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official 610:813dcc80987e 752 {
mbed_official 610:813dcc80987e 753 huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official 610:813dcc80987e 754 }
mbed_official 610:813dcc80987e 755 else
mbed_official 610:813dcc80987e 756 {
mbed_official 610:813dcc80987e 757 huart->State = HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 758 }
mbed_official 610:813dcc80987e 759 /* Process Unlocked */
mbed_official 610:813dcc80987e 760 __HAL_UNLOCK(huart);
mbed_official 610:813dcc80987e 761
mbed_official 610:813dcc80987e 762 return HAL_OK;
mbed_official 610:813dcc80987e 763 }
mbed_official 610:813dcc80987e 764 else
mbed_official 610:813dcc80987e 765 {
mbed_official 610:813dcc80987e 766 return HAL_BUSY;
mbed_official 610:813dcc80987e 767 }
mbed_official 610:813dcc80987e 768 }
mbed_official 610:813dcc80987e 769
mbed_official 610:813dcc80987e 770 /**
mbed_official 610:813dcc80987e 771 * @brief Send an amount of data in interrupt mode.
mbed_official 610:813dcc80987e 772 * @param huart: UART handle.
mbed_official 610:813dcc80987e 773 * @param pData: pointer to data buffer.
mbed_official 610:813dcc80987e 774 * @param Size: amount of data to be sent.
mbed_official 610:813dcc80987e 775 * @retval HAL status
mbed_official 610:813dcc80987e 776 */
mbed_official 610:813dcc80987e 777 HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
mbed_official 610:813dcc80987e 778 {
mbed_official 610:813dcc80987e 779 if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_RX))
mbed_official 610:813dcc80987e 780 {
mbed_official 610:813dcc80987e 781 if((pData == NULL ) || (Size == 0))
mbed_official 610:813dcc80987e 782 {
mbed_official 610:813dcc80987e 783 return HAL_ERROR;
mbed_official 610:813dcc80987e 784 }
mbed_official 610:813dcc80987e 785
mbed_official 610:813dcc80987e 786 /* Process Locked */
mbed_official 610:813dcc80987e 787 __HAL_LOCK(huart);
mbed_official 610:813dcc80987e 788
mbed_official 610:813dcc80987e 789 huart->pTxBuffPtr = pData;
mbed_official 610:813dcc80987e 790 huart->TxXferSize = Size;
mbed_official 610:813dcc80987e 791 huart->TxXferCount = Size;
mbed_official 610:813dcc80987e 792
mbed_official 610:813dcc80987e 793 huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official 610:813dcc80987e 794 /* Check if a receive process is ongoing or not */
mbed_official 610:813dcc80987e 795 if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official 610:813dcc80987e 796 {
mbed_official 610:813dcc80987e 797 huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official 610:813dcc80987e 798 }
mbed_official 610:813dcc80987e 799 else
mbed_official 610:813dcc80987e 800 {
mbed_official 610:813dcc80987e 801 huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official 610:813dcc80987e 802 }
mbed_official 610:813dcc80987e 803
mbed_official 610:813dcc80987e 804 /* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official 610:813dcc80987e 805 __HAL_UART_ENABLE_IT(huart, UART_IT_ERR);
mbed_official 610:813dcc80987e 806
mbed_official 610:813dcc80987e 807 /* Process Unlocked */
mbed_official 610:813dcc80987e 808 __HAL_UNLOCK(huart);
mbed_official 610:813dcc80987e 809
mbed_official 610:813dcc80987e 810 /* Enable the UART Transmit Data Register Empty Interrupt */
mbed_official 610:813dcc80987e 811 __HAL_UART_ENABLE_IT(huart, UART_IT_TXE);
mbed_official 610:813dcc80987e 812
mbed_official 610:813dcc80987e 813 return HAL_OK;
mbed_official 610:813dcc80987e 814 }
mbed_official 610:813dcc80987e 815 else
mbed_official 610:813dcc80987e 816 {
mbed_official 610:813dcc80987e 817 return HAL_BUSY;
mbed_official 610:813dcc80987e 818 }
mbed_official 610:813dcc80987e 819 }
mbed_official 610:813dcc80987e 820
mbed_official 610:813dcc80987e 821 /**
mbed_official 610:813dcc80987e 822 * @brief Receive an amount of data in interrupt mode.
mbed_official 610:813dcc80987e 823 * @param huart: UART handle.
mbed_official 610:813dcc80987e 824 * @param pData: pointer to data buffer.
mbed_official 610:813dcc80987e 825 * @param Size: amount of data to be received.
mbed_official 610:813dcc80987e 826 * @retval HAL status
mbed_official 610:813dcc80987e 827 */
mbed_official 610:813dcc80987e 828 HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
mbed_official 610:813dcc80987e 829 {
mbed_official 610:813dcc80987e 830 if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_TX))
mbed_official 610:813dcc80987e 831 {
mbed_official 610:813dcc80987e 832 if((pData == NULL ) || (Size == 0))
mbed_official 610:813dcc80987e 833 {
mbed_official 610:813dcc80987e 834 return HAL_ERROR;
mbed_official 610:813dcc80987e 835 }
mbed_official 610:813dcc80987e 836
mbed_official 610:813dcc80987e 837 /* Process Locked */
mbed_official 610:813dcc80987e 838 __HAL_LOCK(huart);
mbed_official 610:813dcc80987e 839
mbed_official 610:813dcc80987e 840 huart->pRxBuffPtr = pData;
mbed_official 610:813dcc80987e 841 huart->RxXferSize = Size;
mbed_official 610:813dcc80987e 842 huart->RxXferCount = Size;
mbed_official 610:813dcc80987e 843
mbed_official 610:813dcc80987e 844 /* Computation of UART mask to apply to RDR register */
mbed_official 610:813dcc80987e 845 UART_MASK_COMPUTATION(huart);
mbed_official 610:813dcc80987e 846
mbed_official 610:813dcc80987e 847 huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official 610:813dcc80987e 848 /* Check if a transmit process is ongoing or not */
mbed_official 610:813dcc80987e 849 if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official 610:813dcc80987e 850 {
mbed_official 610:813dcc80987e 851 huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official 610:813dcc80987e 852 }
mbed_official 610:813dcc80987e 853 else
mbed_official 610:813dcc80987e 854 {
mbed_official 610:813dcc80987e 855 huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official 610:813dcc80987e 856 }
mbed_official 610:813dcc80987e 857
mbed_official 610:813dcc80987e 858 /* Enable the UART Parity Error Interrupt */
mbed_official 610:813dcc80987e 859 __HAL_UART_ENABLE_IT(huart, UART_IT_PE);
mbed_official 610:813dcc80987e 860
mbed_official 610:813dcc80987e 861 /* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official 610:813dcc80987e 862 __HAL_UART_ENABLE_IT(huart, UART_IT_ERR);
mbed_official 610:813dcc80987e 863
mbed_official 610:813dcc80987e 864 /* Process Unlocked */
mbed_official 610:813dcc80987e 865 __HAL_UNLOCK(huart);
mbed_official 610:813dcc80987e 866
mbed_official 610:813dcc80987e 867 /* Enable the UART Data Register not empty Interrupt */
mbed_official 610:813dcc80987e 868 __HAL_UART_ENABLE_IT(huart, UART_IT_RXNE);
mbed_official 610:813dcc80987e 869
mbed_official 610:813dcc80987e 870 return HAL_OK;
mbed_official 610:813dcc80987e 871 }
mbed_official 610:813dcc80987e 872 else
mbed_official 610:813dcc80987e 873 {
mbed_official 610:813dcc80987e 874 return HAL_BUSY;
mbed_official 610:813dcc80987e 875 }
mbed_official 610:813dcc80987e 876 }
mbed_official 610:813dcc80987e 877
mbed_official 610:813dcc80987e 878 /**
mbed_official 610:813dcc80987e 879 * @brief Send an amount of data in DMA mode.
mbed_official 610:813dcc80987e 880 * @param huart: UART handle.
mbed_official 610:813dcc80987e 881 * @param pData: pointer to data buffer.
mbed_official 610:813dcc80987e 882 * @param Size: amount of data to be sent.
mbed_official 610:813dcc80987e 883 * @retval HAL status
mbed_official 610:813dcc80987e 884 */
mbed_official 610:813dcc80987e 885 HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
mbed_official 610:813dcc80987e 886 {
mbed_official 610:813dcc80987e 887 uint32_t *tmp;
mbed_official 610:813dcc80987e 888
mbed_official 610:813dcc80987e 889 if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_RX))
mbed_official 610:813dcc80987e 890 {
mbed_official 610:813dcc80987e 891 if((pData == NULL ) || (Size == 0))
mbed_official 610:813dcc80987e 892 {
mbed_official 610:813dcc80987e 893 return HAL_ERROR;
mbed_official 610:813dcc80987e 894 }
mbed_official 610:813dcc80987e 895
mbed_official 610:813dcc80987e 896 /* Process Locked */
mbed_official 610:813dcc80987e 897 __HAL_LOCK(huart);
mbed_official 610:813dcc80987e 898
mbed_official 610:813dcc80987e 899 huart->pTxBuffPtr = pData;
mbed_official 610:813dcc80987e 900 huart->TxXferSize = Size;
mbed_official 610:813dcc80987e 901 huart->TxXferCount = Size;
mbed_official 610:813dcc80987e 902
mbed_official 610:813dcc80987e 903 huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official 610:813dcc80987e 904 /* Check if a receive process is ongoing or not */
mbed_official 610:813dcc80987e 905 if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official 610:813dcc80987e 906 {
mbed_official 610:813dcc80987e 907 huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official 610:813dcc80987e 908 }
mbed_official 610:813dcc80987e 909 else
mbed_official 610:813dcc80987e 910 {
mbed_official 610:813dcc80987e 911 huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official 610:813dcc80987e 912 }
mbed_official 610:813dcc80987e 913
mbed_official 610:813dcc80987e 914 /* Set the UART DMA transfer complete callback */
mbed_official 610:813dcc80987e 915 huart->hdmatx->XferCpltCallback = UART_DMATransmitCplt;
mbed_official 610:813dcc80987e 916
mbed_official 610:813dcc80987e 917 /* Set the UART DMA Half transfer complete callback */
mbed_official 610:813dcc80987e 918 huart->hdmatx->XferHalfCpltCallback = UART_DMATxHalfCplt;
mbed_official 610:813dcc80987e 919
mbed_official 610:813dcc80987e 920 /* Set the DMA error callback */
mbed_official 610:813dcc80987e 921 huart->hdmatx->XferErrorCallback = UART_DMAError;
mbed_official 610:813dcc80987e 922
mbed_official 610:813dcc80987e 923 /* Enable the UART transmit DMA channel */
mbed_official 610:813dcc80987e 924 tmp = (uint32_t*)&pData;
mbed_official 610:813dcc80987e 925 HAL_DMA_Start_IT(huart->hdmatx, *(uint32_t*)tmp, (uint32_t)&huart->Instance->TDR, Size);
mbed_official 610:813dcc80987e 926
mbed_official 610:813dcc80987e 927 /* Clear the TC flag in the ICR register */
mbed_official 610:813dcc80987e 928 __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_TCF);
mbed_official 610:813dcc80987e 929
mbed_official 610:813dcc80987e 930 /* Enable the DMA transfer for transmit request by setting the DMAT bit
mbed_official 610:813dcc80987e 931 in the UART CR3 register */
mbed_official 610:813dcc80987e 932 huart->Instance->CR3 |= USART_CR3_DMAT;
mbed_official 610:813dcc80987e 933
mbed_official 610:813dcc80987e 934 /* Process Unlocked */
mbed_official 610:813dcc80987e 935 __HAL_UNLOCK(huart);
mbed_official 610:813dcc80987e 936
mbed_official 610:813dcc80987e 937 return HAL_OK;
mbed_official 610:813dcc80987e 938 }
mbed_official 610:813dcc80987e 939 else
mbed_official 610:813dcc80987e 940 {
mbed_official 610:813dcc80987e 941 return HAL_BUSY;
mbed_official 610:813dcc80987e 942 }
mbed_official 610:813dcc80987e 943 }
mbed_official 610:813dcc80987e 944
mbed_official 610:813dcc80987e 945 /**
mbed_official 610:813dcc80987e 946 * @brief Receive an amount of data in DMA mode.
mbed_official 610:813dcc80987e 947 * @param huart: UART handle.
mbed_official 610:813dcc80987e 948 * @param pData: pointer to data buffer.
mbed_official 610:813dcc80987e 949 * @param Size: amount of data to be received.
mbed_official 610:813dcc80987e 950 * @note When the UART parity is enabled (PCE = 1), the received data contain
mbed_official 610:813dcc80987e 951 * the parity bit (MSB position).
mbed_official 610:813dcc80987e 952 * @retval HAL status
mbed_official 610:813dcc80987e 953 */
mbed_official 610:813dcc80987e 954 HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
mbed_official 610:813dcc80987e 955 {
mbed_official 610:813dcc80987e 956 uint32_t *tmp;
mbed_official 610:813dcc80987e 957
mbed_official 610:813dcc80987e 958 if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_TX))
mbed_official 610:813dcc80987e 959 {
mbed_official 610:813dcc80987e 960 if((pData == NULL ) || (Size == 0))
mbed_official 610:813dcc80987e 961 {
mbed_official 610:813dcc80987e 962 return HAL_ERROR;
mbed_official 610:813dcc80987e 963 }
mbed_official 610:813dcc80987e 964
mbed_official 610:813dcc80987e 965 /* Process Locked */
mbed_official 610:813dcc80987e 966 __HAL_LOCK(huart);
mbed_official 610:813dcc80987e 967
mbed_official 610:813dcc80987e 968 huart->pRxBuffPtr = pData;
mbed_official 610:813dcc80987e 969 huart->RxXferSize = Size;
mbed_official 610:813dcc80987e 970
mbed_official 610:813dcc80987e 971 huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official 610:813dcc80987e 972 /* Check if a transmit process is ongoing or not */
mbed_official 610:813dcc80987e 973 if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official 610:813dcc80987e 974 {
mbed_official 610:813dcc80987e 975 huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official 610:813dcc80987e 976 }
mbed_official 610:813dcc80987e 977 else
mbed_official 610:813dcc80987e 978 {
mbed_official 610:813dcc80987e 979 huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official 610:813dcc80987e 980 }
mbed_official 610:813dcc80987e 981
mbed_official 610:813dcc80987e 982 /* Set the UART DMA transfer complete callback */
mbed_official 610:813dcc80987e 983 huart->hdmarx->XferCpltCallback = UART_DMAReceiveCplt;
mbed_official 610:813dcc80987e 984
mbed_official 610:813dcc80987e 985 /* Set the UART DMA Half transfer complete callback */
mbed_official 610:813dcc80987e 986 huart->hdmarx->XferHalfCpltCallback = UART_DMARxHalfCplt;
mbed_official 610:813dcc80987e 987
mbed_official 610:813dcc80987e 988 /* Set the DMA error callback */
mbed_official 610:813dcc80987e 989 huart->hdmarx->XferErrorCallback = UART_DMAError;
mbed_official 610:813dcc80987e 990
mbed_official 610:813dcc80987e 991 /* Enable the DMA channel */
mbed_official 610:813dcc80987e 992 tmp = (uint32_t*)&pData;
mbed_official 610:813dcc80987e 993 HAL_DMA_Start_IT(huart->hdmarx, (uint32_t)&huart->Instance->RDR, *(uint32_t*)tmp, Size);
mbed_official 610:813dcc80987e 994
mbed_official 610:813dcc80987e 995 /* Enable the DMA transfer for the receiver request by setting the DMAR bit
mbed_official 610:813dcc80987e 996 in the UART CR3 register */
mbed_official 610:813dcc80987e 997 huart->Instance->CR3 |= USART_CR3_DMAR;
mbed_official 610:813dcc80987e 998
mbed_official 610:813dcc80987e 999 /* Process Unlocked */
mbed_official 610:813dcc80987e 1000 __HAL_UNLOCK(huart);
mbed_official 610:813dcc80987e 1001
mbed_official 610:813dcc80987e 1002 return HAL_OK;
mbed_official 610:813dcc80987e 1003 }
mbed_official 610:813dcc80987e 1004 else
mbed_official 610:813dcc80987e 1005 {
mbed_official 610:813dcc80987e 1006 return HAL_BUSY;
mbed_official 610:813dcc80987e 1007 }
mbed_official 610:813dcc80987e 1008 }
mbed_official 610:813dcc80987e 1009
mbed_official 610:813dcc80987e 1010 /**
mbed_official 610:813dcc80987e 1011 * @brief Pause the DMA Transfer.
mbed_official 610:813dcc80987e 1012 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1013 * @retval HAL status
mbed_official 610:813dcc80987e 1014 */
mbed_official 610:813dcc80987e 1015 HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1016 {
mbed_official 610:813dcc80987e 1017 /* Process Locked */
mbed_official 610:813dcc80987e 1018 __HAL_LOCK(huart);
mbed_official 610:813dcc80987e 1019
mbed_official 610:813dcc80987e 1020 if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official 610:813dcc80987e 1021 {
mbed_official 610:813dcc80987e 1022 /* Disable the UART DMA Tx request */
mbed_official 610:813dcc80987e 1023 huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
mbed_official 610:813dcc80987e 1024 }
mbed_official 610:813dcc80987e 1025 else if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official 610:813dcc80987e 1026 {
mbed_official 610:813dcc80987e 1027 /* Disable the UART DMA Rx request */
mbed_official 610:813dcc80987e 1028 huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
mbed_official 610:813dcc80987e 1029 }
mbed_official 610:813dcc80987e 1030 else if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official 610:813dcc80987e 1031 {
mbed_official 610:813dcc80987e 1032 /* Disable the UART DMA Tx request */
mbed_official 610:813dcc80987e 1033 huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
mbed_official 610:813dcc80987e 1034 /* Disable the UART DMA Rx request */
mbed_official 610:813dcc80987e 1035 huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
mbed_official 610:813dcc80987e 1036 }
mbed_official 610:813dcc80987e 1037
mbed_official 610:813dcc80987e 1038 /* Process Unlocked */
mbed_official 610:813dcc80987e 1039 __HAL_UNLOCK(huart);
mbed_official 610:813dcc80987e 1040
mbed_official 610:813dcc80987e 1041 return HAL_OK;
mbed_official 610:813dcc80987e 1042 }
mbed_official 610:813dcc80987e 1043
mbed_official 610:813dcc80987e 1044 /**
mbed_official 610:813dcc80987e 1045 * @brief Resume the DMA Transfer.
mbed_official 610:813dcc80987e 1046 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1047 * @retval HAL status
mbed_official 610:813dcc80987e 1048 */
mbed_official 610:813dcc80987e 1049 HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1050 {
mbed_official 610:813dcc80987e 1051 /* Process Locked */
mbed_official 610:813dcc80987e 1052 __HAL_LOCK(huart);
mbed_official 610:813dcc80987e 1053
mbed_official 610:813dcc80987e 1054 if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official 610:813dcc80987e 1055 {
mbed_official 610:813dcc80987e 1056 /* Enable the UART DMA Tx request */
mbed_official 610:813dcc80987e 1057 huart->Instance->CR3 |= USART_CR3_DMAT;
mbed_official 610:813dcc80987e 1058 }
mbed_official 610:813dcc80987e 1059 else if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official 610:813dcc80987e 1060 {
mbed_official 610:813dcc80987e 1061 /* Clear the Overrun flag before resuming the Rx transfer */
mbed_official 610:813dcc80987e 1062 __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF);
mbed_official 610:813dcc80987e 1063
mbed_official 610:813dcc80987e 1064 /* Enable the UART DMA Rx request */
mbed_official 610:813dcc80987e 1065 huart->Instance->CR3 |= USART_CR3_DMAR;
mbed_official 610:813dcc80987e 1066 }
mbed_official 610:813dcc80987e 1067 else if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official 610:813dcc80987e 1068 {
mbed_official 610:813dcc80987e 1069 /* Clear the Overrun flag before resuming the Rx transfer */
mbed_official 610:813dcc80987e 1070 __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF);
mbed_official 610:813dcc80987e 1071
mbed_official 610:813dcc80987e 1072 /* Enable the UART DMA Rx request before the DMA Tx request */
mbed_official 610:813dcc80987e 1073 huart->Instance->CR3 |= USART_CR3_DMAR;
mbed_official 610:813dcc80987e 1074
mbed_official 610:813dcc80987e 1075 /* Enable the UART DMA Tx request */
mbed_official 610:813dcc80987e 1076 huart->Instance->CR3 |= USART_CR3_DMAT;
mbed_official 610:813dcc80987e 1077 }
mbed_official 610:813dcc80987e 1078
mbed_official 610:813dcc80987e 1079 /* Process Unlocked */
mbed_official 610:813dcc80987e 1080 __HAL_UNLOCK(huart);
mbed_official 610:813dcc80987e 1081
mbed_official 610:813dcc80987e 1082 return HAL_OK;
mbed_official 610:813dcc80987e 1083 }
mbed_official 610:813dcc80987e 1084
mbed_official 610:813dcc80987e 1085 /**
mbed_official 610:813dcc80987e 1086 * @brief Stop the DMA Transfer.
mbed_official 610:813dcc80987e 1087 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1088 * @retval HAL status
mbed_official 610:813dcc80987e 1089 */
mbed_official 610:813dcc80987e 1090 HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1091 {
mbed_official 610:813dcc80987e 1092 /* The Lock is not implemented on this API to allow the user application
mbed_official 610:813dcc80987e 1093 to call the HAL UART API under callbacks HAL_UART_TxCpltCallback() / HAL_UART_RxCpltCallback() /
mbed_official 610:813dcc80987e 1094 HAL_UART_TxHalfCpltCallback / HAL_UART_RxHalfCpltCallback:
mbed_official 610:813dcc80987e 1095 indeed, when HAL_DMA_Abort() API is called, the DMA TX/RX Transfer or Half Transfer complete
mbed_official 610:813dcc80987e 1096 interrupt is generated if the DMA transfer interruption occurs at the middle or at the end of
mbed_official 610:813dcc80987e 1097 the stream and the corresponding call back is executed. */
mbed_official 610:813dcc80987e 1098
mbed_official 610:813dcc80987e 1099 /* Disable the UART Tx/Rx DMA requests */
mbed_official 610:813dcc80987e 1100 huart->Instance->CR3 &= ~USART_CR3_DMAT;
mbed_official 610:813dcc80987e 1101 huart->Instance->CR3 &= ~USART_CR3_DMAR;
mbed_official 610:813dcc80987e 1102
mbed_official 610:813dcc80987e 1103 /* Abort the UART DMA tx channel */
mbed_official 610:813dcc80987e 1104 if(huart->hdmatx != NULL)
mbed_official 610:813dcc80987e 1105 {
mbed_official 610:813dcc80987e 1106 HAL_DMA_Abort(huart->hdmatx);
mbed_official 610:813dcc80987e 1107 }
mbed_official 610:813dcc80987e 1108 /* Abort the UART DMA rx channel */
mbed_official 610:813dcc80987e 1109 if(huart->hdmarx != NULL)
mbed_official 610:813dcc80987e 1110 {
mbed_official 610:813dcc80987e 1111 HAL_DMA_Abort(huart->hdmarx);
mbed_official 610:813dcc80987e 1112 }
mbed_official 610:813dcc80987e 1113
mbed_official 610:813dcc80987e 1114 huart->State = HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1115
mbed_official 610:813dcc80987e 1116 return HAL_OK;
mbed_official 610:813dcc80987e 1117 }
mbed_official 610:813dcc80987e 1118
mbed_official 610:813dcc80987e 1119 /**
mbed_official 610:813dcc80987e 1120 * @brief Handle UART interrupt request.
mbed_official 610:813dcc80987e 1121 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1122 * @retval None
mbed_official 610:813dcc80987e 1123 */
mbed_official 610:813dcc80987e 1124 void HAL_UART_IRQHandler(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1125 {
mbed_official 610:813dcc80987e 1126 /* UART parity error interrupt occurred -------------------------------------*/
mbed_official 610:813dcc80987e 1127 if((__HAL_UART_GET_IT(huart, UART_IT_PE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_PE) != RESET))
mbed_official 610:813dcc80987e 1128 {
mbed_official 610:813dcc80987e 1129 __HAL_UART_CLEAR_IT(huart, UART_CLEAR_PEF);
mbed_official 610:813dcc80987e 1130
mbed_official 610:813dcc80987e 1131 huart->ErrorCode |= HAL_UART_ERROR_PE;
mbed_official 610:813dcc80987e 1132 /* Set the UART state ready to be able to start again the process */
mbed_official 610:813dcc80987e 1133 huart->State = HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1134 }
mbed_official 610:813dcc80987e 1135
mbed_official 610:813dcc80987e 1136 /* UART frame error interrupt occurred --------------------------------------*/
mbed_official 610:813dcc80987e 1137 if((__HAL_UART_GET_IT(huart, UART_IT_FE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR) != RESET))
mbed_official 610:813dcc80987e 1138 {
mbed_official 610:813dcc80987e 1139 __HAL_UART_CLEAR_IT(huart, UART_CLEAR_FEF);
mbed_official 610:813dcc80987e 1140
mbed_official 610:813dcc80987e 1141 huart->ErrorCode |= HAL_UART_ERROR_FE;
mbed_official 610:813dcc80987e 1142 /* Set the UART state ready to be able to start again the process */
mbed_official 610:813dcc80987e 1143 huart->State = HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1144 }
mbed_official 610:813dcc80987e 1145
mbed_official 610:813dcc80987e 1146 /* UART noise error interrupt occurred --------------------------------------*/
mbed_official 610:813dcc80987e 1147 if((__HAL_UART_GET_IT(huart, UART_IT_NE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR) != RESET))
mbed_official 610:813dcc80987e 1148 {
mbed_official 610:813dcc80987e 1149 __HAL_UART_CLEAR_IT(huart, UART_CLEAR_NEF);
mbed_official 610:813dcc80987e 1150
mbed_official 610:813dcc80987e 1151 huart->ErrorCode |= HAL_UART_ERROR_NE;
mbed_official 610:813dcc80987e 1152 /* Set the UART state ready to be able to start again the process */
mbed_official 610:813dcc80987e 1153 huart->State = HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1154 }
mbed_official 610:813dcc80987e 1155
mbed_official 610:813dcc80987e 1156 /* UART Over-Run interrupt occurred -----------------------------------------*/
mbed_official 610:813dcc80987e 1157 if((__HAL_UART_GET_IT(huart, UART_IT_ORE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR) != RESET))
mbed_official 610:813dcc80987e 1158 {
mbed_official 610:813dcc80987e 1159 __HAL_UART_CLEAR_IT(huart, UART_CLEAR_OREF);
mbed_official 610:813dcc80987e 1160
mbed_official 610:813dcc80987e 1161 huart->ErrorCode |= HAL_UART_ERROR_ORE;
mbed_official 610:813dcc80987e 1162 /* Set the UART state ready to be able to start again the process */
mbed_official 610:813dcc80987e 1163 huart->State = HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1164 }
mbed_official 610:813dcc80987e 1165
mbed_official 610:813dcc80987e 1166 /* Call UART Error Call back function if need be --------------------------*/
mbed_official 610:813dcc80987e 1167 if(huart->ErrorCode != HAL_UART_ERROR_NONE)
mbed_official 610:813dcc80987e 1168 {
mbed_official 610:813dcc80987e 1169 HAL_UART_ErrorCallback(huart);
mbed_official 610:813dcc80987e 1170 }
mbed_official 610:813dcc80987e 1171
mbed_official 610:813dcc80987e 1172 /* UART wakeup from Stop mode interrupt occurred -------------------------------------*/
mbed_official 610:813dcc80987e 1173 if((__HAL_UART_GET_IT(huart, UART_IT_WUF) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_WUF) != RESET))
mbed_official 610:813dcc80987e 1174 {
mbed_official 610:813dcc80987e 1175 __HAL_UART_CLEAR_IT(huart, UART_CLEAR_WUF);
mbed_official 610:813dcc80987e 1176 /* Set the UART state ready to be able to start again the process */
mbed_official 610:813dcc80987e 1177 huart->State = HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1178 HAL_UARTEx_WakeupCallback(huart);
mbed_official 610:813dcc80987e 1179 }
mbed_official 610:813dcc80987e 1180
mbed_official 610:813dcc80987e 1181 /* UART in mode Receiver ---------------------------------------------------*/
mbed_official 610:813dcc80987e 1182 if((__HAL_UART_GET_IT(huart, UART_IT_RXNE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_RXNE) != RESET))
mbed_official 610:813dcc80987e 1183 {
mbed_official 610:813dcc80987e 1184 UART_Receive_IT(huart);
mbed_official 610:813dcc80987e 1185 /* Clear RXNE interrupt flag */
mbed_official 610:813dcc80987e 1186 __HAL_UART_SEND_REQ(huart, UART_RXDATA_FLUSH_REQUEST);
mbed_official 610:813dcc80987e 1187 }
mbed_official 610:813dcc80987e 1188
mbed_official 610:813dcc80987e 1189
mbed_official 610:813dcc80987e 1190 /* UART in mode Transmitter ------------------------------------------------*/
mbed_official 610:813dcc80987e 1191 if((__HAL_UART_GET_IT(huart, UART_IT_TXE) != RESET) &&(__HAL_UART_GET_IT_SOURCE(huart, UART_IT_TXE) != RESET))
mbed_official 610:813dcc80987e 1192 {
mbed_official 610:813dcc80987e 1193 UART_Transmit_IT(huart);
mbed_official 610:813dcc80987e 1194 }
mbed_official 610:813dcc80987e 1195
mbed_official 610:813dcc80987e 1196 /* UART in mode Transmitter (transmission end) -----------------------------*/
mbed_official 610:813dcc80987e 1197 if((__HAL_UART_GET_IT(huart, UART_IT_TC) != RESET) &&(__HAL_UART_GET_IT_SOURCE(huart, UART_IT_TC) != RESET))
mbed_official 610:813dcc80987e 1198 {
mbed_official 610:813dcc80987e 1199 UART_EndTransmit_IT(huart);
mbed_official 610:813dcc80987e 1200 }
mbed_official 610:813dcc80987e 1201
mbed_official 610:813dcc80987e 1202 }
mbed_official 610:813dcc80987e 1203
mbed_official 610:813dcc80987e 1204 /**
mbed_official 610:813dcc80987e 1205 * @brief Tx Transfer completed callback.
mbed_official 610:813dcc80987e 1206 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1207 * @retval None
mbed_official 610:813dcc80987e 1208 */
mbed_official 610:813dcc80987e 1209 __weak void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1210 {
mbed_official 610:813dcc80987e 1211 /* NOTE : This function should not be modified, when the callback is needed,
mbed_official 610:813dcc80987e 1212 the HAL_UART_TxCpltCallback can be implemented in the user file.
mbed_official 610:813dcc80987e 1213 */
mbed_official 610:813dcc80987e 1214 }
mbed_official 610:813dcc80987e 1215
mbed_official 610:813dcc80987e 1216 /**
mbed_official 610:813dcc80987e 1217 * @brief Tx Half Transfer completed callback.
mbed_official 610:813dcc80987e 1218 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1219 * @retval None
mbed_official 610:813dcc80987e 1220 */
mbed_official 610:813dcc80987e 1221 __weak void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1222 {
mbed_official 610:813dcc80987e 1223 /* NOTE: This function should not be modified, when the callback is needed,
mbed_official 610:813dcc80987e 1224 the HAL_UART_TxHalfCpltCallback can be implemented in the user file.
mbed_official 610:813dcc80987e 1225 */
mbed_official 610:813dcc80987e 1226 }
mbed_official 610:813dcc80987e 1227
mbed_official 610:813dcc80987e 1228 /**
mbed_official 610:813dcc80987e 1229 * @brief Rx Transfer completed callback.
mbed_official 610:813dcc80987e 1230 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1231 * @retval None
mbed_official 610:813dcc80987e 1232 */
mbed_official 610:813dcc80987e 1233 __weak void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1234 {
mbed_official 610:813dcc80987e 1235 /* NOTE : This function should not be modified, when the callback is needed,
mbed_official 610:813dcc80987e 1236 the HAL_UART_RxCpltCallback can be implemented in the user file.
mbed_official 610:813dcc80987e 1237 */
mbed_official 610:813dcc80987e 1238 }
mbed_official 610:813dcc80987e 1239
mbed_official 610:813dcc80987e 1240 /**
mbed_official 610:813dcc80987e 1241 * @brief Rx Half Transfer completed callback.
mbed_official 610:813dcc80987e 1242 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1243 * @retval None
mbed_official 610:813dcc80987e 1244 */
mbed_official 610:813dcc80987e 1245 __weak void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1246 {
mbed_official 610:813dcc80987e 1247 /* NOTE: This function should not be modified, when the callback is needed,
mbed_official 610:813dcc80987e 1248 the HAL_UART_RxHalfCpltCallback can be implemented in the user file.
mbed_official 610:813dcc80987e 1249 */
mbed_official 610:813dcc80987e 1250 }
mbed_official 610:813dcc80987e 1251
mbed_official 610:813dcc80987e 1252 /**
mbed_official 610:813dcc80987e 1253 * @brief UART error callback.
mbed_official 610:813dcc80987e 1254 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1255 * @retval None
mbed_official 610:813dcc80987e 1256 */
mbed_official 610:813dcc80987e 1257 __weak void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1258 {
mbed_official 610:813dcc80987e 1259 /* NOTE : This function should not be modified, when the callback is needed,
mbed_official 610:813dcc80987e 1260 the HAL_UART_ErrorCallback can be implemented in the user file.
mbed_official 610:813dcc80987e 1261 */
mbed_official 610:813dcc80987e 1262 }
mbed_official 610:813dcc80987e 1263
mbed_official 610:813dcc80987e 1264 /**
mbed_official 610:813dcc80987e 1265 * @}
mbed_official 610:813dcc80987e 1266 */
mbed_official 610:813dcc80987e 1267
mbed_official 610:813dcc80987e 1268 /** @defgroup UART_Exported_Functions_Group3 Peripheral Control functions
mbed_official 610:813dcc80987e 1269 * @brief UART control functions
mbed_official 610:813dcc80987e 1270 *
mbed_official 610:813dcc80987e 1271 @verbatim
mbed_official 610:813dcc80987e 1272 ===============================================================================
mbed_official 610:813dcc80987e 1273 ##### Peripheral Control functions #####
mbed_official 610:813dcc80987e 1274 ===============================================================================
mbed_official 610:813dcc80987e 1275 [..]
mbed_official 610:813dcc80987e 1276 This subsection provides a set of functions allowing to control the UART.
mbed_official 610:813dcc80987e 1277 (+) HAL_MultiProcessor_EnableMuteMode() API enables mute mode
mbed_official 610:813dcc80987e 1278 (+) HAL_MultiProcessor_DisableMuteMode() API disables mute mode
mbed_official 610:813dcc80987e 1279 (+) HAL_MultiProcessor_EnterMuteMode() API enters mute mode
mbed_official 610:813dcc80987e 1280 (+) HAL_MultiProcessor_EnableMuteMode() API enables mute mode
mbed_official 610:813dcc80987e 1281 (+) UART_SetConfig() API configures the UART peripheral
mbed_official 610:813dcc80987e 1282 (+) UART_AdvFeatureConfig() API optionally configures the UART advanced features
mbed_official 610:813dcc80987e 1283 (+) UART_CheckIdleState() API ensures that TEACK and/or REACK are set after initialization
mbed_official 610:813dcc80987e 1284 (+) UART_Wakeup_AddressConfig() API configures the wake-up from stop mode parameters
mbed_official 610:813dcc80987e 1285 (+) HAL_HalfDuplex_EnableTransmitter() API disables receiver and enables transmitter
mbed_official 610:813dcc80987e 1286 (+) HAL_HalfDuplex_EnableReceiver() API disables transmitter and enables receiver
mbed_official 610:813dcc80987e 1287 (+) HAL_LIN_SendBreak() API transmits the break characters
mbed_official 610:813dcc80987e 1288 @endverbatim
mbed_official 610:813dcc80987e 1289 * @{
mbed_official 610:813dcc80987e 1290 */
mbed_official 610:813dcc80987e 1291
mbed_official 610:813dcc80987e 1292 /**
mbed_official 610:813dcc80987e 1293 * @brief Enable UART in mute mode (does not mean UART enters mute mode;
mbed_official 610:813dcc80987e 1294 * to enter mute mode, HAL_MultiProcessor_EnterMuteMode() API must be called).
mbed_official 610:813dcc80987e 1295 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1296 * @retval HAL status
mbed_official 610:813dcc80987e 1297 */
mbed_official 610:813dcc80987e 1298 HAL_StatusTypeDef HAL_MultiProcessor_EnableMuteMode(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1299 {
mbed_official 610:813dcc80987e 1300 /* Process Locked */
mbed_official 610:813dcc80987e 1301 __HAL_LOCK(huart);
mbed_official 610:813dcc80987e 1302
mbed_official 610:813dcc80987e 1303 huart->State = HAL_UART_STATE_BUSY;
mbed_official 610:813dcc80987e 1304
mbed_official 610:813dcc80987e 1305 /* Enable USART mute mode by setting the MME bit in the CR1 register */
mbed_official 610:813dcc80987e 1306 huart->Instance->CR1 |= USART_CR1_MME;
mbed_official 610:813dcc80987e 1307
mbed_official 610:813dcc80987e 1308 huart->State = HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1309
mbed_official 610:813dcc80987e 1310 return (UART_CheckIdleState(huart));
mbed_official 610:813dcc80987e 1311 }
mbed_official 610:813dcc80987e 1312
mbed_official 610:813dcc80987e 1313 /**
mbed_official 610:813dcc80987e 1314 * @brief Disable UART mute mode (does not mean the UART actually exits mute mode
mbed_official 610:813dcc80987e 1315 * as it may not have been in mute mode at this very moment).
mbed_official 610:813dcc80987e 1316 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1317 * @retval HAL status
mbed_official 610:813dcc80987e 1318 */
mbed_official 610:813dcc80987e 1319 HAL_StatusTypeDef HAL_MultiProcessor_DisableMuteMode(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1320 {
mbed_official 610:813dcc80987e 1321 /* Process Locked */
mbed_official 610:813dcc80987e 1322 __HAL_LOCK(huart);
mbed_official 610:813dcc80987e 1323
mbed_official 610:813dcc80987e 1324 huart->State = HAL_UART_STATE_BUSY;
mbed_official 610:813dcc80987e 1325
mbed_official 610:813dcc80987e 1326 /* Disable USART mute mode by clearing the MME bit in the CR1 register */
mbed_official 610:813dcc80987e 1327 huart->Instance->CR1 &= ~(USART_CR1_MME);
mbed_official 610:813dcc80987e 1328
mbed_official 610:813dcc80987e 1329 huart->State = HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1330
mbed_official 610:813dcc80987e 1331 return (UART_CheckIdleState(huart));
mbed_official 610:813dcc80987e 1332 }
mbed_official 610:813dcc80987e 1333
mbed_official 610:813dcc80987e 1334 /**
mbed_official 610:813dcc80987e 1335 * @brief Enter UART mute mode (means UART actually enters mute mode).
mbed_official 610:813dcc80987e 1336 * @note To exit from mute mode, HAL_MultiProcessor_DisableMuteMode() API must be called.
mbed_official 610:813dcc80987e 1337 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1338 * @retval None
mbed_official 610:813dcc80987e 1339 */
mbed_official 610:813dcc80987e 1340 void HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1341 {
mbed_official 610:813dcc80987e 1342 __HAL_UART_SEND_REQ(huart, UART_MUTE_MODE_REQUEST);
mbed_official 610:813dcc80987e 1343 }
mbed_official 610:813dcc80987e 1344
mbed_official 610:813dcc80987e 1345 /**
mbed_official 610:813dcc80987e 1346 * @brief Enable the UART transmitter and disable the UART receiver.
mbed_official 610:813dcc80987e 1347 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1348 * @retval HAL status
mbed_official 610:813dcc80987e 1349 */
mbed_official 610:813dcc80987e 1350 HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1351 {
mbed_official 610:813dcc80987e 1352 /* Process Locked */
mbed_official 610:813dcc80987e 1353 __HAL_LOCK(huart);
mbed_official 610:813dcc80987e 1354 huart->State = HAL_UART_STATE_BUSY;
mbed_official 610:813dcc80987e 1355
mbed_official 610:813dcc80987e 1356 /* Clear TE and RE bits */
mbed_official 610:813dcc80987e 1357 CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE | USART_CR1_RE));
mbed_official 610:813dcc80987e 1358 /* Enable the USART's transmit interface by setting the TE bit in the USART CR1 register */
mbed_official 610:813dcc80987e 1359 SET_BIT(huart->Instance->CR1, USART_CR1_TE);
mbed_official 610:813dcc80987e 1360
mbed_official 610:813dcc80987e 1361 huart->State= HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1362
mbed_official 610:813dcc80987e 1363 /* Process Unlocked */
mbed_official 610:813dcc80987e 1364 __HAL_UNLOCK(huart);
mbed_official 610:813dcc80987e 1365
mbed_official 610:813dcc80987e 1366 return HAL_OK;
mbed_official 610:813dcc80987e 1367 }
mbed_official 610:813dcc80987e 1368
mbed_official 610:813dcc80987e 1369 /**
mbed_official 610:813dcc80987e 1370 * @brief Enable the UART receiver and disable the UART transmitter.
mbed_official 610:813dcc80987e 1371 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1372 * @retval HAL status.
mbed_official 610:813dcc80987e 1373 */
mbed_official 610:813dcc80987e 1374 HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1375 {
mbed_official 610:813dcc80987e 1376 /* Process Locked */
mbed_official 610:813dcc80987e 1377 __HAL_LOCK(huart);
mbed_official 610:813dcc80987e 1378 huart->State = HAL_UART_STATE_BUSY;
mbed_official 610:813dcc80987e 1379
mbed_official 610:813dcc80987e 1380 /* Clear TE and RE bits */
mbed_official 610:813dcc80987e 1381 CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE | USART_CR1_RE));
mbed_official 610:813dcc80987e 1382 /* Enable the USART's receive interface by setting the RE bit in the USART CR1 register */
mbed_official 610:813dcc80987e 1383 SET_BIT(huart->Instance->CR1, USART_CR1_RE);
mbed_official 610:813dcc80987e 1384
mbed_official 610:813dcc80987e 1385 huart->State = HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1386 /* Process Unlocked */
mbed_official 610:813dcc80987e 1387 __HAL_UNLOCK(huart);
mbed_official 610:813dcc80987e 1388
mbed_official 610:813dcc80987e 1389 return HAL_OK;
mbed_official 610:813dcc80987e 1390 }
mbed_official 610:813dcc80987e 1391
mbed_official 610:813dcc80987e 1392
mbed_official 610:813dcc80987e 1393 /**
mbed_official 610:813dcc80987e 1394 * @brief Transmit break characters.
mbed_official 610:813dcc80987e 1395 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1396 * @retval HAL status
mbed_official 610:813dcc80987e 1397 */
mbed_official 610:813dcc80987e 1398 HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1399 {
mbed_official 610:813dcc80987e 1400 /* Check the parameters */
mbed_official 610:813dcc80987e 1401 assert_param(IS_UART_INSTANCE(huart->Instance));
mbed_official 610:813dcc80987e 1402
mbed_official 610:813dcc80987e 1403 /* Process Locked */
mbed_official 610:813dcc80987e 1404 __HAL_LOCK(huart);
mbed_official 610:813dcc80987e 1405
mbed_official 610:813dcc80987e 1406 huart->State = HAL_UART_STATE_BUSY;
mbed_official 610:813dcc80987e 1407
mbed_official 610:813dcc80987e 1408 /* Send break characters */
mbed_official 610:813dcc80987e 1409 huart->Instance->RQR |= UART_SENDBREAK_REQUEST;
mbed_official 610:813dcc80987e 1410
mbed_official 610:813dcc80987e 1411 huart->State = HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1412
mbed_official 610:813dcc80987e 1413 /* Process Unlocked */
mbed_official 610:813dcc80987e 1414 __HAL_UNLOCK(huart);
mbed_official 610:813dcc80987e 1415
mbed_official 610:813dcc80987e 1416 return HAL_OK;
mbed_official 610:813dcc80987e 1417 }
mbed_official 610:813dcc80987e 1418
mbed_official 610:813dcc80987e 1419
mbed_official 610:813dcc80987e 1420 /**
mbed_official 610:813dcc80987e 1421 * @}
mbed_official 610:813dcc80987e 1422 */
mbed_official 610:813dcc80987e 1423
mbed_official 610:813dcc80987e 1424 /** @defgroup UART_Exported_Functions_Group4 Peripheral State and Error functions
mbed_official 610:813dcc80987e 1425 * @brief UART Peripheral State functions
mbed_official 610:813dcc80987e 1426 *
mbed_official 610:813dcc80987e 1427 @verbatim
mbed_official 610:813dcc80987e 1428 ==============================================================================
mbed_official 610:813dcc80987e 1429 ##### Peripheral State and Error functions #####
mbed_official 610:813dcc80987e 1430 ==============================================================================
mbed_official 610:813dcc80987e 1431 [..]
mbed_official 610:813dcc80987e 1432 This subsection provides functions allowing to :
mbed_official 610:813dcc80987e 1433 (+) Return the UART handle state.
mbed_official 610:813dcc80987e 1434 (+) Return the UART handle error code
mbed_official 610:813dcc80987e 1435
mbed_official 610:813dcc80987e 1436 @endverbatim
mbed_official 610:813dcc80987e 1437 * @{
mbed_official 610:813dcc80987e 1438 */
mbed_official 610:813dcc80987e 1439
mbed_official 610:813dcc80987e 1440 /**
mbed_official 610:813dcc80987e 1441 * @brief Return the UART handle state.
mbed_official 610:813dcc80987e 1442 * @param huart : pointer to a UART_HandleTypeDef structure that contains
mbed_official 610:813dcc80987e 1443 * the configuration information for the specified UART.
mbed_official 610:813dcc80987e 1444 * @retval HAL state
mbed_official 610:813dcc80987e 1445 */
mbed_official 610:813dcc80987e 1446 HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1447 {
mbed_official 610:813dcc80987e 1448 return huart->State;
mbed_official 610:813dcc80987e 1449 }
mbed_official 610:813dcc80987e 1450
mbed_official 610:813dcc80987e 1451 /**
mbed_official 610:813dcc80987e 1452 * @brief Return the UART handle error code.
mbed_official 610:813dcc80987e 1453 * @param huart : pointer to a UART_HandleTypeDef structure that contains
mbed_official 610:813dcc80987e 1454 * the configuration information for the specified UART.
mbed_official 610:813dcc80987e 1455 * @retval UART Error Code
mbed_official 610:813dcc80987e 1456 */
mbed_official 610:813dcc80987e 1457 uint32_t HAL_UART_GetError(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1458 {
mbed_official 610:813dcc80987e 1459 return huart->ErrorCode;
mbed_official 610:813dcc80987e 1460 }
mbed_official 610:813dcc80987e 1461 /**
mbed_official 610:813dcc80987e 1462 * @}
mbed_official 610:813dcc80987e 1463 */
mbed_official 610:813dcc80987e 1464
mbed_official 610:813dcc80987e 1465 /**
mbed_official 610:813dcc80987e 1466 * @}
mbed_official 610:813dcc80987e 1467 */
mbed_official 610:813dcc80987e 1468
mbed_official 610:813dcc80987e 1469 /** @defgroup UART_Private_Functions UART Private Functions
mbed_official 610:813dcc80987e 1470 * @{
mbed_official 610:813dcc80987e 1471 */
mbed_official 610:813dcc80987e 1472
mbed_official 610:813dcc80987e 1473 /**
mbed_official 610:813dcc80987e 1474 * @brief Configure the UART peripheral.
mbed_official 610:813dcc80987e 1475 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1476 * @retval HAL status
mbed_official 610:813dcc80987e 1477 */
mbed_official 610:813dcc80987e 1478 HAL_StatusTypeDef UART_SetConfig(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1479 {
mbed_official 610:813dcc80987e 1480 uint32_t tmpreg = 0x00000000;
mbed_official 610:813dcc80987e 1481 UART_ClockSourceTypeDef clocksource = UART_CLOCKSOURCE_UNDEFINED;
mbed_official 610:813dcc80987e 1482 uint16_t brrtemp = 0x0000;
mbed_official 610:813dcc80987e 1483 uint16_t usartdiv = 0x0000;
mbed_official 610:813dcc80987e 1484 HAL_StatusTypeDef ret = HAL_OK;
mbed_official 610:813dcc80987e 1485
mbed_official 610:813dcc80987e 1486 /* Check the parameters */
mbed_official 610:813dcc80987e 1487 assert_param(IS_UART_BAUDRATE(huart->Init.BaudRate));
mbed_official 610:813dcc80987e 1488 assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
mbed_official 610:813dcc80987e 1489 if(UART_INSTANCE_LOWPOWER(huart))
mbed_official 610:813dcc80987e 1490 {
mbed_official 610:813dcc80987e 1491 assert_param(IS_LPUART_STOPBITS(huart->Init.StopBits));
mbed_official 610:813dcc80987e 1492 }
mbed_official 610:813dcc80987e 1493 else
mbed_official 610:813dcc80987e 1494 {
mbed_official 610:813dcc80987e 1495 assert_param(IS_UART_STOPBITS(huart->Init.StopBits));
mbed_official 610:813dcc80987e 1496 assert_param(IS_UART_ONE_BIT_SAMPLE(huart->Init.OneBitSampling));
mbed_official 610:813dcc80987e 1497 }
mbed_official 610:813dcc80987e 1498
mbed_official 610:813dcc80987e 1499 assert_param(IS_UART_PARITY(huart->Init.Parity));
mbed_official 610:813dcc80987e 1500 assert_param(IS_UART_MODE(huart->Init.Mode));
mbed_official 610:813dcc80987e 1501 assert_param(IS_UART_HARDWARE_FLOW_CONTROL(huart->Init.HwFlowCtl));
mbed_official 610:813dcc80987e 1502 assert_param(IS_UART_OVERSAMPLING(huart->Init.OverSampling));
mbed_official 610:813dcc80987e 1503
mbed_official 610:813dcc80987e 1504
mbed_official 610:813dcc80987e 1505 /*-------------------------- USART CR1 Configuration -----------------------*/
mbed_official 610:813dcc80987e 1506 /* Clear M, PCE, PS, TE, RE and OVER8 bits and configure
mbed_official 610:813dcc80987e 1507 * the UART Word Length, Parity, Mode and oversampling:
mbed_official 610:813dcc80987e 1508 * set the M bits according to huart->Init.WordLength value
mbed_official 610:813dcc80987e 1509 * set PCE and PS bits according to huart->Init.Parity value
mbed_official 610:813dcc80987e 1510 * set TE and RE bits according to huart->Init.Mode value
mbed_official 610:813dcc80987e 1511 * set OVER8 bit according to huart->Init.OverSampling value */
mbed_official 610:813dcc80987e 1512 tmpreg = (uint32_t)huart->Init.WordLength | huart->Init.Parity | huart->Init.Mode | huart->Init.OverSampling ;
mbed_official 610:813dcc80987e 1513 MODIFY_REG(huart->Instance->CR1, UART_CR1_FIELDS, tmpreg);
mbed_official 610:813dcc80987e 1514
mbed_official 610:813dcc80987e 1515 /*-------------------------- USART CR2 Configuration -----------------------*/
mbed_official 610:813dcc80987e 1516 /* Configure the UART Stop Bits: Set STOP[13:12] bits according
mbed_official 610:813dcc80987e 1517 * to huart->Init.StopBits value */
mbed_official 610:813dcc80987e 1518 MODIFY_REG(huart->Instance->CR2, USART_CR2_STOP, huart->Init.StopBits);
mbed_official 610:813dcc80987e 1519
mbed_official 610:813dcc80987e 1520 /*-------------------------- USART CR3 Configuration -----------------------*/
mbed_official 610:813dcc80987e 1521 /* Configure
mbed_official 610:813dcc80987e 1522 * - UART HardWare Flow Control: set CTSE and RTSE bits according
mbed_official 610:813dcc80987e 1523 * to huart->Init.HwFlowCtl value
mbed_official 610:813dcc80987e 1524 * - one-bit sampling method versus three samples' majority rule according
mbed_official 610:813dcc80987e 1525 * to huart->Init.OneBitSampling (not applicable to LPUART) */
mbed_official 610:813dcc80987e 1526 tmpreg = (uint32_t)huart->Init.HwFlowCtl;
mbed_official 610:813dcc80987e 1527 if (!(UART_INSTANCE_LOWPOWER(huart)))
mbed_official 610:813dcc80987e 1528 {
mbed_official 610:813dcc80987e 1529 tmpreg |= huart->Init.OneBitSampling;
mbed_official 610:813dcc80987e 1530 }
mbed_official 610:813dcc80987e 1531 MODIFY_REG(huart->Instance->CR3, (USART_CR3_RTSE | USART_CR3_CTSE | USART_CR3_ONEBIT), tmpreg);
mbed_official 610:813dcc80987e 1532
mbed_official 610:813dcc80987e 1533 /*-------------------------- USART BRR Configuration -----------------------*/
mbed_official 610:813dcc80987e 1534 UART_GETCLOCKSOURCE(huart, clocksource);
mbed_official 610:813dcc80987e 1535
mbed_official 610:813dcc80987e 1536 /* Check LPUART instance */
mbed_official 610:813dcc80987e 1537 if(UART_INSTANCE_LOWPOWER(huart))
mbed_official 610:813dcc80987e 1538 {
mbed_official 610:813dcc80987e 1539 /* Retrieve frequency clock */
mbed_official 610:813dcc80987e 1540 tmpreg = 0;
mbed_official 610:813dcc80987e 1541
mbed_official 610:813dcc80987e 1542 switch (clocksource)
mbed_official 610:813dcc80987e 1543 {
mbed_official 610:813dcc80987e 1544 case UART_CLOCKSOURCE_PCLK1:
mbed_official 610:813dcc80987e 1545 tmpreg = HAL_RCC_GetPCLK1Freq();
mbed_official 610:813dcc80987e 1546 break;
mbed_official 610:813dcc80987e 1547 case UART_CLOCKSOURCE_HSI:
mbed_official 610:813dcc80987e 1548 tmpreg = (uint32_t) HSI_VALUE;
mbed_official 610:813dcc80987e 1549 break;
mbed_official 610:813dcc80987e 1550 case UART_CLOCKSOURCE_SYSCLK:
mbed_official 610:813dcc80987e 1551 tmpreg = HAL_RCC_GetSysClockFreq();
mbed_official 610:813dcc80987e 1552 break;
mbed_official 610:813dcc80987e 1553 case UART_CLOCKSOURCE_LSE:
mbed_official 610:813dcc80987e 1554 tmpreg = (uint32_t) LSE_VALUE;
mbed_official 610:813dcc80987e 1555 break;
mbed_official 610:813dcc80987e 1556 case UART_CLOCKSOURCE_UNDEFINED:
mbed_official 610:813dcc80987e 1557 default:
mbed_official 610:813dcc80987e 1558 ret = HAL_ERROR;
mbed_official 610:813dcc80987e 1559 break;
mbed_official 610:813dcc80987e 1560 }
mbed_official 610:813dcc80987e 1561
mbed_official 610:813dcc80987e 1562 /* if proper clock source reported */
mbed_official 610:813dcc80987e 1563 if (tmpreg != 0)
mbed_official 610:813dcc80987e 1564 {
mbed_official 610:813dcc80987e 1565 /* ensure that Frequency clock is in the range [3 * baudrate, 4096 * baudrate] */
mbed_official 610:813dcc80987e 1566 if ( (tmpreg < (3 * huart->Init.BaudRate) ) ||
mbed_official 610:813dcc80987e 1567 (tmpreg > (4096 * huart->Init.BaudRate) ))
mbed_official 610:813dcc80987e 1568 {
mbed_official 610:813dcc80987e 1569 ret = HAL_ERROR;
mbed_official 610:813dcc80987e 1570 }
mbed_official 610:813dcc80987e 1571 else
mbed_official 610:813dcc80987e 1572 {
mbed_official 610:813dcc80987e 1573 switch (clocksource)
mbed_official 610:813dcc80987e 1574 {
mbed_official 610:813dcc80987e 1575 case UART_CLOCKSOURCE_PCLK1:
mbed_official 610:813dcc80987e 1576 tmpreg = (uint32_t)(UART_DIV_LPUART(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
mbed_official 610:813dcc80987e 1577 break;
mbed_official 610:813dcc80987e 1578 case UART_CLOCKSOURCE_HSI:
mbed_official 610:813dcc80987e 1579 tmpreg = (uint32_t)(UART_DIV_LPUART(HSI_VALUE, huart->Init.BaudRate));
mbed_official 610:813dcc80987e 1580 break;
mbed_official 610:813dcc80987e 1581 case UART_CLOCKSOURCE_SYSCLK:
mbed_official 610:813dcc80987e 1582 tmpreg = (uint32_t)(UART_DIV_LPUART(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
mbed_official 610:813dcc80987e 1583 break;
mbed_official 610:813dcc80987e 1584 case UART_CLOCKSOURCE_LSE:
mbed_official 610:813dcc80987e 1585 tmpreg = (uint32_t)(UART_DIV_LPUART(LSE_VALUE, huart->Init.BaudRate));
mbed_official 610:813dcc80987e 1586 break;
mbed_official 610:813dcc80987e 1587 case UART_CLOCKSOURCE_UNDEFINED:
mbed_official 610:813dcc80987e 1588 default:
mbed_official 610:813dcc80987e 1589 ret = HAL_ERROR;
mbed_official 610:813dcc80987e 1590 break;
mbed_official 610:813dcc80987e 1591 }
mbed_official 610:813dcc80987e 1592
mbed_official 610:813dcc80987e 1593 if ((tmpreg >= UART_LPUART_BRR_MIN) && (tmpreg <= UART_LPUART_BRR_MAX))
mbed_official 610:813dcc80987e 1594 {
mbed_official 610:813dcc80987e 1595 huart->Instance->BRR = tmpreg;
mbed_official 610:813dcc80987e 1596 }
mbed_official 610:813dcc80987e 1597 else
mbed_official 610:813dcc80987e 1598 {
mbed_official 610:813dcc80987e 1599 ret = HAL_ERROR;
mbed_official 610:813dcc80987e 1600 }
mbed_official 610:813dcc80987e 1601 } /* if ( (tmpreg < (3 * huart->Init.BaudRate) ) || (tmpreg > (4096 * huart->Init.BaudRate) )) */
mbed_official 610:813dcc80987e 1602 } /* if (tmpreg != 0) */
mbed_official 610:813dcc80987e 1603 }
mbed_official 610:813dcc80987e 1604 /* Check UART Over Sampling to set Baud Rate Register */
mbed_official 610:813dcc80987e 1605 else if (huart->Init.OverSampling == UART_OVERSAMPLING_8)
mbed_official 610:813dcc80987e 1606 {
mbed_official 610:813dcc80987e 1607 switch (clocksource)
mbed_official 610:813dcc80987e 1608 {
mbed_official 610:813dcc80987e 1609 case UART_CLOCKSOURCE_PCLK1:
mbed_official 610:813dcc80987e 1610 usartdiv = (uint16_t)(UART_DIV_SAMPLING8(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
mbed_official 610:813dcc80987e 1611 break;
mbed_official 610:813dcc80987e 1612 case UART_CLOCKSOURCE_PCLK2:
mbed_official 610:813dcc80987e 1613 usartdiv = (uint16_t)(UART_DIV_SAMPLING8(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate));
mbed_official 610:813dcc80987e 1614 break;
mbed_official 610:813dcc80987e 1615 case UART_CLOCKSOURCE_HSI:
mbed_official 610:813dcc80987e 1616 usartdiv = (uint16_t)(UART_DIV_SAMPLING8(HSI_VALUE, huart->Init.BaudRate));
mbed_official 610:813dcc80987e 1617 break;
mbed_official 610:813dcc80987e 1618 case UART_CLOCKSOURCE_SYSCLK:
mbed_official 610:813dcc80987e 1619 usartdiv = (uint16_t)(UART_DIV_SAMPLING8(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
mbed_official 610:813dcc80987e 1620 break;
mbed_official 610:813dcc80987e 1621 case UART_CLOCKSOURCE_LSE:
mbed_official 610:813dcc80987e 1622 usartdiv = (uint16_t)(UART_DIV_SAMPLING8(LSE_VALUE, huart->Init.BaudRate));
mbed_official 610:813dcc80987e 1623 break;
mbed_official 610:813dcc80987e 1624 case UART_CLOCKSOURCE_UNDEFINED:
mbed_official 610:813dcc80987e 1625 default:
mbed_official 610:813dcc80987e 1626 ret = HAL_ERROR;
mbed_official 610:813dcc80987e 1627 break;
mbed_official 610:813dcc80987e 1628 }
mbed_official 610:813dcc80987e 1629
mbed_official 610:813dcc80987e 1630 brrtemp = usartdiv & 0xFFF0;
mbed_official 610:813dcc80987e 1631 brrtemp |= (uint16_t)((usartdiv & (uint16_t)0x000F) >> 1U);
mbed_official 610:813dcc80987e 1632 huart->Instance->BRR = brrtemp;
mbed_official 610:813dcc80987e 1633 }
mbed_official 610:813dcc80987e 1634 else
mbed_official 610:813dcc80987e 1635 {
mbed_official 610:813dcc80987e 1636 switch (clocksource)
mbed_official 610:813dcc80987e 1637 {
mbed_official 610:813dcc80987e 1638 case UART_CLOCKSOURCE_PCLK1:
mbed_official 610:813dcc80987e 1639 huart->Instance->BRR = (uint16_t)(UART_DIV_SAMPLING16(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
mbed_official 610:813dcc80987e 1640 break;
mbed_official 610:813dcc80987e 1641 case UART_CLOCKSOURCE_PCLK2:
mbed_official 610:813dcc80987e 1642 huart->Instance->BRR = (uint16_t)(UART_DIV_SAMPLING16(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate));
mbed_official 610:813dcc80987e 1643 break;
mbed_official 610:813dcc80987e 1644 case UART_CLOCKSOURCE_HSI:
mbed_official 610:813dcc80987e 1645 huart->Instance->BRR = (uint16_t)(UART_DIV_SAMPLING16(HSI_VALUE, huart->Init.BaudRate));
mbed_official 610:813dcc80987e 1646 break;
mbed_official 610:813dcc80987e 1647 case UART_CLOCKSOURCE_SYSCLK:
mbed_official 610:813dcc80987e 1648 huart->Instance->BRR = (uint16_t)(UART_DIV_SAMPLING16(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
mbed_official 610:813dcc80987e 1649 break;
mbed_official 610:813dcc80987e 1650 case UART_CLOCKSOURCE_LSE:
mbed_official 610:813dcc80987e 1651 huart->Instance->BRR = (uint16_t)(UART_DIV_SAMPLING16(LSE_VALUE, huart->Init.BaudRate));
mbed_official 610:813dcc80987e 1652 break;
mbed_official 610:813dcc80987e 1653 case UART_CLOCKSOURCE_UNDEFINED:
mbed_official 610:813dcc80987e 1654 default:
mbed_official 610:813dcc80987e 1655 ret = HAL_ERROR;
mbed_official 610:813dcc80987e 1656 break;
mbed_official 610:813dcc80987e 1657 }
mbed_official 610:813dcc80987e 1658 }
mbed_official 610:813dcc80987e 1659
mbed_official 610:813dcc80987e 1660 return ret;
mbed_official 610:813dcc80987e 1661
mbed_official 610:813dcc80987e 1662 }
mbed_official 610:813dcc80987e 1663
mbed_official 610:813dcc80987e 1664 /**
mbed_official 610:813dcc80987e 1665 * @brief Configure the UART peripheral advanced features.
mbed_official 610:813dcc80987e 1666 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1667 * @retval None
mbed_official 610:813dcc80987e 1668 */
mbed_official 610:813dcc80987e 1669 void UART_AdvFeatureConfig(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1670 {
mbed_official 610:813dcc80987e 1671 /* Check whether the set of advanced features to configure is properly set */
mbed_official 610:813dcc80987e 1672 assert_param(IS_UART_ADVFEATURE_INIT(huart->AdvancedInit.AdvFeatureInit));
mbed_official 610:813dcc80987e 1673
mbed_official 610:813dcc80987e 1674 /* if required, configure TX pin active level inversion */
mbed_official 610:813dcc80987e 1675 if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_TXINVERT_INIT))
mbed_official 610:813dcc80987e 1676 {
mbed_official 610:813dcc80987e 1677 assert_param(IS_UART_ADVFEATURE_TXINV(huart->AdvancedInit.TxPinLevelInvert));
mbed_official 610:813dcc80987e 1678 MODIFY_REG(huart->Instance->CR2, USART_CR2_TXINV, huart->AdvancedInit.TxPinLevelInvert);
mbed_official 610:813dcc80987e 1679 }
mbed_official 610:813dcc80987e 1680
mbed_official 610:813dcc80987e 1681 /* if required, configure RX pin active level inversion */
mbed_official 610:813dcc80987e 1682 if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXINVERT_INIT))
mbed_official 610:813dcc80987e 1683 {
mbed_official 610:813dcc80987e 1684 assert_param(IS_UART_ADVFEATURE_RXINV(huart->AdvancedInit.RxPinLevelInvert));
mbed_official 610:813dcc80987e 1685 MODIFY_REG(huart->Instance->CR2, USART_CR2_RXINV, huart->AdvancedInit.RxPinLevelInvert);
mbed_official 610:813dcc80987e 1686 }
mbed_official 610:813dcc80987e 1687
mbed_official 610:813dcc80987e 1688 /* if required, configure data inversion */
mbed_official 610:813dcc80987e 1689 if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DATAINVERT_INIT))
mbed_official 610:813dcc80987e 1690 {
mbed_official 610:813dcc80987e 1691 assert_param(IS_UART_ADVFEATURE_DATAINV(huart->AdvancedInit.DataInvert));
mbed_official 610:813dcc80987e 1692 MODIFY_REG(huart->Instance->CR2, USART_CR2_DATAINV, huart->AdvancedInit.DataInvert);
mbed_official 610:813dcc80987e 1693 }
mbed_official 610:813dcc80987e 1694
mbed_official 610:813dcc80987e 1695 /* if required, configure RX/TX pins swap */
mbed_official 610:813dcc80987e 1696 if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_SWAP_INIT))
mbed_official 610:813dcc80987e 1697 {
mbed_official 610:813dcc80987e 1698 assert_param(IS_UART_ADVFEATURE_SWAP(huart->AdvancedInit.Swap));
mbed_official 610:813dcc80987e 1699 MODIFY_REG(huart->Instance->CR2, USART_CR2_SWAP, huart->AdvancedInit.Swap);
mbed_official 610:813dcc80987e 1700 }
mbed_official 610:813dcc80987e 1701
mbed_official 610:813dcc80987e 1702 /* if required, configure RX overrun detection disabling */
mbed_official 610:813dcc80987e 1703 if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXOVERRUNDISABLE_INIT))
mbed_official 610:813dcc80987e 1704 {
mbed_official 610:813dcc80987e 1705 assert_param(IS_UART_OVERRUN(huart->AdvancedInit.OverrunDisable));
mbed_official 610:813dcc80987e 1706 MODIFY_REG(huart->Instance->CR3, USART_CR3_OVRDIS, huart->AdvancedInit.OverrunDisable);
mbed_official 610:813dcc80987e 1707 }
mbed_official 610:813dcc80987e 1708
mbed_official 610:813dcc80987e 1709 /* if required, configure DMA disabling on reception error */
mbed_official 610:813dcc80987e 1710 if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DMADISABLEONERROR_INIT))
mbed_official 610:813dcc80987e 1711 {
mbed_official 610:813dcc80987e 1712 assert_param(IS_UART_ADVFEATURE_DMAONRXERROR(huart->AdvancedInit.DMADisableonRxError));
mbed_official 610:813dcc80987e 1713 MODIFY_REG(huart->Instance->CR3, USART_CR3_DDRE, huart->AdvancedInit.DMADisableonRxError);
mbed_official 610:813dcc80987e 1714 }
mbed_official 610:813dcc80987e 1715
mbed_official 610:813dcc80987e 1716 /* if required, configure auto Baud rate detection scheme */
mbed_official 610:813dcc80987e 1717 if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_AUTOBAUDRATE_INIT))
mbed_official 610:813dcc80987e 1718 {
mbed_official 610:813dcc80987e 1719 assert_param(IS_USART_AUTOBAUDRATE_DETECTION_INSTANCE(huart->Instance));
mbed_official 610:813dcc80987e 1720 assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATE(huart->AdvancedInit.AutoBaudRateEnable));
mbed_official 610:813dcc80987e 1721 MODIFY_REG(huart->Instance->CR2, USART_CR2_ABREN, huart->AdvancedInit.AutoBaudRateEnable);
mbed_official 610:813dcc80987e 1722 /* set auto Baudrate detection parameters if detection is enabled */
mbed_official 610:813dcc80987e 1723 if(huart->AdvancedInit.AutoBaudRateEnable == UART_ADVFEATURE_AUTOBAUDRATE_ENABLE)
mbed_official 610:813dcc80987e 1724 {
mbed_official 610:813dcc80987e 1725 assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATEMODE(huart->AdvancedInit.AutoBaudRateMode));
mbed_official 610:813dcc80987e 1726 MODIFY_REG(huart->Instance->CR2, USART_CR2_ABRMODE, huart->AdvancedInit.AutoBaudRateMode);
mbed_official 610:813dcc80987e 1727 }
mbed_official 610:813dcc80987e 1728 }
mbed_official 610:813dcc80987e 1729
mbed_official 610:813dcc80987e 1730 /* if required, configure MSB first on communication line */
mbed_official 610:813dcc80987e 1731 if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_MSBFIRST_INIT))
mbed_official 610:813dcc80987e 1732 {
mbed_official 610:813dcc80987e 1733 assert_param(IS_UART_ADVFEATURE_MSBFIRST(huart->AdvancedInit.MSBFirst));
mbed_official 610:813dcc80987e 1734 MODIFY_REG(huart->Instance->CR2, USART_CR2_MSBFIRST, huart->AdvancedInit.MSBFirst);
mbed_official 610:813dcc80987e 1735 }
mbed_official 610:813dcc80987e 1736 }
mbed_official 610:813dcc80987e 1737
mbed_official 610:813dcc80987e 1738 /**
mbed_official 610:813dcc80987e 1739 * @brief Check the UART Idle State.
mbed_official 610:813dcc80987e 1740 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1741 * @retval HAL status
mbed_official 610:813dcc80987e 1742 */
mbed_official 610:813dcc80987e 1743 HAL_StatusTypeDef UART_CheckIdleState(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1744 {
mbed_official 610:813dcc80987e 1745 /* Initialize the UART ErrorCode */
mbed_official 610:813dcc80987e 1746 huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official 610:813dcc80987e 1747
mbed_official 610:813dcc80987e 1748 /* Check if the Transmitter is enabled */
mbed_official 610:813dcc80987e 1749 if((huart->Instance->CR1 & USART_CR1_TE) == USART_CR1_TE)
mbed_official 610:813dcc80987e 1750 {
mbed_official 610:813dcc80987e 1751 /* Wait until TEACK flag is set */
mbed_official 610:813dcc80987e 1752 if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_TEACK, RESET, HAL_UART_TIMEOUT_VALUE) != HAL_OK)
mbed_official 610:813dcc80987e 1753 {
mbed_official 610:813dcc80987e 1754 /* Timeout occurred */
mbed_official 610:813dcc80987e 1755 return HAL_TIMEOUT;
mbed_official 610:813dcc80987e 1756 }
mbed_official 610:813dcc80987e 1757 }
mbed_official 610:813dcc80987e 1758 /* Check if the Receiver is enabled */
mbed_official 610:813dcc80987e 1759 if((huart->Instance->CR1 & USART_CR1_RE) == USART_CR1_RE)
mbed_official 610:813dcc80987e 1760 {
mbed_official 610:813dcc80987e 1761 /* Wait until REACK flag is set */
mbed_official 610:813dcc80987e 1762 if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_REACK, RESET, HAL_UART_TIMEOUT_VALUE) != HAL_OK)
mbed_official 610:813dcc80987e 1763 {
mbed_official 610:813dcc80987e 1764 /* Timeout occurred */
mbed_official 610:813dcc80987e 1765 return HAL_TIMEOUT;
mbed_official 610:813dcc80987e 1766 }
mbed_official 610:813dcc80987e 1767 }
mbed_official 610:813dcc80987e 1768
mbed_official 610:813dcc80987e 1769 /* Initialize the UART State */
mbed_official 610:813dcc80987e 1770 huart->State= HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1771
mbed_official 610:813dcc80987e 1772 /* Process Unlocked */
mbed_official 610:813dcc80987e 1773 __HAL_UNLOCK(huart);
mbed_official 610:813dcc80987e 1774
mbed_official 610:813dcc80987e 1775 return HAL_OK;
mbed_official 610:813dcc80987e 1776 }
mbed_official 610:813dcc80987e 1777
mbed_official 610:813dcc80987e 1778 /**
mbed_official 610:813dcc80987e 1779 * @brief DMA UART transmit process complete callback.
mbed_official 610:813dcc80987e 1780 * @param hdma: DMA handle.
mbed_official 610:813dcc80987e 1781 * @retval None
mbed_official 610:813dcc80987e 1782 */
mbed_official 610:813dcc80987e 1783 static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma)
mbed_official 610:813dcc80987e 1784 {
mbed_official 610:813dcc80987e 1785 UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 610:813dcc80987e 1786
mbed_official 610:813dcc80987e 1787 /* DMA Normal mode */
mbed_official 610:813dcc80987e 1788 if ( HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC) )
mbed_official 610:813dcc80987e 1789 {
mbed_official 610:813dcc80987e 1790 huart->TxXferCount = 0;
mbed_official 610:813dcc80987e 1791
mbed_official 610:813dcc80987e 1792 /* Disable the DMA transfer for transmit request by resetting the DMAT bit
mbed_official 610:813dcc80987e 1793 in the UART CR3 register */
mbed_official 610:813dcc80987e 1794 huart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAT);
mbed_official 610:813dcc80987e 1795
mbed_official 610:813dcc80987e 1796 /* Enable the UART Transmit Complete Interrupt */
mbed_official 610:813dcc80987e 1797 __HAL_UART_ENABLE_IT(huart, UART_IT_TC);
mbed_official 610:813dcc80987e 1798 }
mbed_official 610:813dcc80987e 1799 /* DMA Circular mode */
mbed_official 610:813dcc80987e 1800 else
mbed_official 610:813dcc80987e 1801 {
mbed_official 610:813dcc80987e 1802 HAL_UART_TxCpltCallback(huart);
mbed_official 610:813dcc80987e 1803 }
mbed_official 610:813dcc80987e 1804
mbed_official 610:813dcc80987e 1805 }
mbed_official 610:813dcc80987e 1806
mbed_official 610:813dcc80987e 1807 /**
mbed_official 610:813dcc80987e 1808 * @brief DMA UART transmit process half complete callback.
mbed_official 610:813dcc80987e 1809 * @param hdma : DMA handle.
mbed_official 610:813dcc80987e 1810 * @retval None
mbed_official 610:813dcc80987e 1811 */
mbed_official 610:813dcc80987e 1812 static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official 610:813dcc80987e 1813 {
mbed_official 610:813dcc80987e 1814 UART_HandleTypeDef* huart = (UART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
mbed_official 610:813dcc80987e 1815
mbed_official 610:813dcc80987e 1816 HAL_UART_TxHalfCpltCallback(huart);
mbed_official 610:813dcc80987e 1817 }
mbed_official 610:813dcc80987e 1818
mbed_official 610:813dcc80987e 1819 /**
mbed_official 610:813dcc80987e 1820 * @brief DMA UART receive process complete callback.
mbed_official 610:813dcc80987e 1821 * @param hdma: DMA handle.
mbed_official 610:813dcc80987e 1822 * @retval None
mbed_official 610:813dcc80987e 1823 */
mbed_official 610:813dcc80987e 1824 static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
mbed_official 610:813dcc80987e 1825 {
mbed_official 610:813dcc80987e 1826 UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 610:813dcc80987e 1827
mbed_official 610:813dcc80987e 1828 /* DMA Normal mode */
mbed_official 610:813dcc80987e 1829 if ( HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC) )
mbed_official 610:813dcc80987e 1830 {
mbed_official 610:813dcc80987e 1831 huart->RxXferCount = 0;
mbed_official 610:813dcc80987e 1832
mbed_official 610:813dcc80987e 1833 /* Disable the DMA transfer for the receiver request by resetting the DMAR bit
mbed_official 610:813dcc80987e 1834 in the UART CR3 register */
mbed_official 610:813dcc80987e 1835 huart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAR);
mbed_official 610:813dcc80987e 1836
mbed_official 610:813dcc80987e 1837 /* Check if a transmit Process is ongoing or not */
mbed_official 610:813dcc80987e 1838 if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official 610:813dcc80987e 1839 {
mbed_official 610:813dcc80987e 1840 huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official 610:813dcc80987e 1841 }
mbed_official 610:813dcc80987e 1842 else
mbed_official 610:813dcc80987e 1843 {
mbed_official 610:813dcc80987e 1844 huart->State = HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1845 }
mbed_official 610:813dcc80987e 1846 }
mbed_official 610:813dcc80987e 1847
mbed_official 610:813dcc80987e 1848 HAL_UART_RxCpltCallback(huart);
mbed_official 610:813dcc80987e 1849 }
mbed_official 610:813dcc80987e 1850
mbed_official 610:813dcc80987e 1851 /**
mbed_official 610:813dcc80987e 1852 * @brief Handle UART Communication Timeout.
mbed_official 610:813dcc80987e 1853 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1854 * @param Flag: specifies the UART flag to check.
mbed_official 610:813dcc80987e 1855 * @param Status: the Flag status (SET or RESET).
mbed_official 610:813dcc80987e 1856 * @param Timeout: Timeout duration.
mbed_official 610:813dcc80987e 1857 * @retval HAL status
mbed_official 610:813dcc80987e 1858 */
mbed_official 610:813dcc80987e 1859 HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout(UART_HandleTypeDef *huart, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
mbed_official 610:813dcc80987e 1860 {
mbed_official 610:813dcc80987e 1861 uint32_t tickstart = HAL_GetTick();
mbed_official 610:813dcc80987e 1862
mbed_official 610:813dcc80987e 1863 /* Wait until flag is set */
mbed_official 610:813dcc80987e 1864 if(Status == RESET)
mbed_official 610:813dcc80987e 1865 {
mbed_official 610:813dcc80987e 1866 while(__HAL_UART_GET_FLAG(huart, Flag) == RESET)
mbed_official 610:813dcc80987e 1867 {
mbed_official 610:813dcc80987e 1868 /* Check for the Timeout */
mbed_official 610:813dcc80987e 1869 if(Timeout != HAL_MAX_DELAY)
mbed_official 610:813dcc80987e 1870 {
mbed_official 610:813dcc80987e 1871 if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
mbed_official 610:813dcc80987e 1872 {
mbed_official 610:813dcc80987e 1873 /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
mbed_official 610:813dcc80987e 1874 __HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
mbed_official 610:813dcc80987e 1875 __HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
mbed_official 610:813dcc80987e 1876 __HAL_UART_DISABLE_IT(huart, UART_IT_PE);
mbed_official 610:813dcc80987e 1877 __HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official 610:813dcc80987e 1878
mbed_official 610:813dcc80987e 1879 huart->State= HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1880
mbed_official 610:813dcc80987e 1881 /* Process Unlocked */
mbed_official 610:813dcc80987e 1882 __HAL_UNLOCK(huart);
mbed_official 610:813dcc80987e 1883
mbed_official 610:813dcc80987e 1884 return HAL_TIMEOUT;
mbed_official 610:813dcc80987e 1885 }
mbed_official 610:813dcc80987e 1886 }
mbed_official 610:813dcc80987e 1887 }
mbed_official 610:813dcc80987e 1888 }
mbed_official 610:813dcc80987e 1889 else
mbed_official 610:813dcc80987e 1890 {
mbed_official 610:813dcc80987e 1891 while(__HAL_UART_GET_FLAG(huart, Flag) != RESET)
mbed_official 610:813dcc80987e 1892 {
mbed_official 610:813dcc80987e 1893 /* Check for the Timeout */
mbed_official 610:813dcc80987e 1894 if(Timeout != HAL_MAX_DELAY)
mbed_official 610:813dcc80987e 1895 {
mbed_official 610:813dcc80987e 1896 if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
mbed_official 610:813dcc80987e 1897 {
mbed_official 610:813dcc80987e 1898 /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
mbed_official 610:813dcc80987e 1899 __HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
mbed_official 610:813dcc80987e 1900 __HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
mbed_official 610:813dcc80987e 1901 __HAL_UART_DISABLE_IT(huart, UART_IT_PE);
mbed_official 610:813dcc80987e 1902 __HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official 610:813dcc80987e 1903
mbed_official 610:813dcc80987e 1904 huart->State= HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1905
mbed_official 610:813dcc80987e 1906 /* Process Unlocked */
mbed_official 610:813dcc80987e 1907 __HAL_UNLOCK(huart);
mbed_official 610:813dcc80987e 1908
mbed_official 610:813dcc80987e 1909 return HAL_TIMEOUT;
mbed_official 610:813dcc80987e 1910 }
mbed_official 610:813dcc80987e 1911 }
mbed_official 610:813dcc80987e 1912 }
mbed_official 610:813dcc80987e 1913 }
mbed_official 610:813dcc80987e 1914 return HAL_OK;
mbed_official 610:813dcc80987e 1915 }
mbed_official 610:813dcc80987e 1916
mbed_official 610:813dcc80987e 1917 /**
mbed_official 610:813dcc80987e 1918 * @brief DMA UART receive process half complete callback.
mbed_official 610:813dcc80987e 1919 * @param hdma : DMA handle.
mbed_official 610:813dcc80987e 1920 * @retval None
mbed_official 610:813dcc80987e 1921 */
mbed_official 610:813dcc80987e 1922 static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official 610:813dcc80987e 1923 {
mbed_official 610:813dcc80987e 1924 UART_HandleTypeDef* huart = (UART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
mbed_official 610:813dcc80987e 1925
mbed_official 610:813dcc80987e 1926 HAL_UART_RxHalfCpltCallback(huart);
mbed_official 610:813dcc80987e 1927 }
mbed_official 610:813dcc80987e 1928
mbed_official 610:813dcc80987e 1929 /**
mbed_official 610:813dcc80987e 1930 * @brief DMA UART communication error callback.
mbed_official 610:813dcc80987e 1931 * @param hdma: DMA handle.
mbed_official 610:813dcc80987e 1932 * @retval None
mbed_official 610:813dcc80987e 1933 */
mbed_official 610:813dcc80987e 1934 static void UART_DMAError(DMA_HandleTypeDef *hdma)
mbed_official 610:813dcc80987e 1935 {
mbed_official 610:813dcc80987e 1936 UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official 610:813dcc80987e 1937 huart->RxXferCount = 0;
mbed_official 610:813dcc80987e 1938 huart->TxXferCount = 0;
mbed_official 610:813dcc80987e 1939 huart->State= HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 1940 huart->ErrorCode |= HAL_UART_ERROR_DMA;
mbed_official 610:813dcc80987e 1941 HAL_UART_ErrorCallback(huart);
mbed_official 610:813dcc80987e 1942 }
mbed_official 610:813dcc80987e 1943
mbed_official 610:813dcc80987e 1944 /**
mbed_official 610:813dcc80987e 1945 * @brief Send an amount of data in interrupt mode.
mbed_official 610:813dcc80987e 1946 * @note Function is called under interruption only, once
mbed_official 610:813dcc80987e 1947 * interruptions have been enabled by HAL_UART_Transmit_IT().
mbed_official 610:813dcc80987e 1948 * @param huart: UART handle.
mbed_official 610:813dcc80987e 1949 * @retval HAL status
mbed_official 610:813dcc80987e 1950 */
mbed_official 610:813dcc80987e 1951 static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 1952 {
mbed_official 610:813dcc80987e 1953 uint16_t* tmp;
mbed_official 610:813dcc80987e 1954
mbed_official 610:813dcc80987e 1955 if ((huart->State == HAL_UART_STATE_BUSY_TX) || (huart->State == HAL_UART_STATE_BUSY_TX_RX))
mbed_official 610:813dcc80987e 1956 {
mbed_official 610:813dcc80987e 1957
mbed_official 610:813dcc80987e 1958 if(huart->TxXferCount == 0)
mbed_official 610:813dcc80987e 1959 {
mbed_official 610:813dcc80987e 1960 /* Disable the UART Transmit Data Register Empty Interrupt */
mbed_official 610:813dcc80987e 1961 __HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
mbed_official 610:813dcc80987e 1962
mbed_official 610:813dcc80987e 1963 /* Enable the UART Transmit Complete Interrupt */
mbed_official 610:813dcc80987e 1964 __HAL_UART_ENABLE_IT(huart, UART_IT_TC);
mbed_official 610:813dcc80987e 1965
mbed_official 610:813dcc80987e 1966 return HAL_OK;
mbed_official 610:813dcc80987e 1967 }
mbed_official 610:813dcc80987e 1968 else
mbed_official 610:813dcc80987e 1969 {
mbed_official 610:813dcc80987e 1970 if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official 610:813dcc80987e 1971 {
mbed_official 610:813dcc80987e 1972 tmp = (uint16_t*) huart->pTxBuffPtr;
mbed_official 610:813dcc80987e 1973 huart->Instance->TDR = (*tmp & (uint16_t)0x01FF);
mbed_official 610:813dcc80987e 1974 huart->pTxBuffPtr += 2;
mbed_official 610:813dcc80987e 1975 }
mbed_official 610:813dcc80987e 1976 else
mbed_official 610:813dcc80987e 1977 {
mbed_official 610:813dcc80987e 1978 huart->Instance->TDR = (uint8_t)(*huart->pTxBuffPtr++ & (uint8_t)0xFF);
mbed_official 610:813dcc80987e 1979 }
mbed_official 610:813dcc80987e 1980
mbed_official 610:813dcc80987e 1981 huart->TxXferCount--;
mbed_official 610:813dcc80987e 1982
mbed_official 610:813dcc80987e 1983 return HAL_OK;
mbed_official 610:813dcc80987e 1984 }
mbed_official 610:813dcc80987e 1985 }
mbed_official 610:813dcc80987e 1986 else
mbed_official 610:813dcc80987e 1987 {
mbed_official 610:813dcc80987e 1988 return HAL_BUSY;
mbed_official 610:813dcc80987e 1989 }
mbed_official 610:813dcc80987e 1990 }
mbed_official 610:813dcc80987e 1991
mbed_official 610:813dcc80987e 1992
mbed_official 610:813dcc80987e 1993 /**
mbed_official 610:813dcc80987e 1994 * @brief Wrap up transmission in non-blocking mode.
mbed_official 610:813dcc80987e 1995 * @param huart: pointer to a UART_HandleTypeDef structure that contains
mbed_official 610:813dcc80987e 1996 * the configuration information for the specified UART module.
mbed_official 610:813dcc80987e 1997 * @retval HAL status
mbed_official 610:813dcc80987e 1998 */
mbed_official 610:813dcc80987e 1999 static HAL_StatusTypeDef UART_EndTransmit_IT(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 2000 {
mbed_official 610:813dcc80987e 2001 /* Disable the UART Transmit Complete Interrupt */
mbed_official 610:813dcc80987e 2002 __HAL_UART_DISABLE_IT(huart, UART_IT_TC);
mbed_official 610:813dcc80987e 2003
mbed_official 610:813dcc80987e 2004 /* Check if a receive process is ongoing or not */
mbed_official 610:813dcc80987e 2005 if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official 610:813dcc80987e 2006 {
mbed_official 610:813dcc80987e 2007 huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official 610:813dcc80987e 2008 }
mbed_official 610:813dcc80987e 2009 else
mbed_official 610:813dcc80987e 2010 {
mbed_official 610:813dcc80987e 2011 /* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official 610:813dcc80987e 2012 __HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official 610:813dcc80987e 2013
mbed_official 610:813dcc80987e 2014 huart->State = HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 2015 }
mbed_official 610:813dcc80987e 2016
mbed_official 610:813dcc80987e 2017 HAL_UART_TxCpltCallback(huart);
mbed_official 610:813dcc80987e 2018
mbed_official 610:813dcc80987e 2019 return HAL_OK;
mbed_official 610:813dcc80987e 2020 }
mbed_official 610:813dcc80987e 2021
mbed_official 610:813dcc80987e 2022
mbed_official 610:813dcc80987e 2023 /**
mbed_official 610:813dcc80987e 2024 * @brief Receive an amount of data in interrupt mode.
mbed_official 610:813dcc80987e 2025 * @note Function is called under interruption only, once
mbed_official 610:813dcc80987e 2026 * interruptions have been enabled by HAL_UART_Receive_IT()
mbed_official 610:813dcc80987e 2027 * @param huart: UART handle.
mbed_official 610:813dcc80987e 2028 * @retval HAL status
mbed_official 610:813dcc80987e 2029 */
mbed_official 610:813dcc80987e 2030 static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart)
mbed_official 610:813dcc80987e 2031 {
mbed_official 610:813dcc80987e 2032 uint16_t* tmp;
mbed_official 610:813dcc80987e 2033 uint16_t uhMask = huart->Mask;
mbed_official 610:813dcc80987e 2034
mbed_official 610:813dcc80987e 2035 if((huart->State == HAL_UART_STATE_BUSY_RX) || (huart->State == HAL_UART_STATE_BUSY_TX_RX))
mbed_official 610:813dcc80987e 2036 {
mbed_official 610:813dcc80987e 2037
mbed_official 610:813dcc80987e 2038 if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official 610:813dcc80987e 2039 {
mbed_official 610:813dcc80987e 2040 tmp = (uint16_t*) huart->pRxBuffPtr ;
mbed_official 610:813dcc80987e 2041 *tmp = (uint16_t)(huart->Instance->RDR & uhMask);
mbed_official 610:813dcc80987e 2042 huart->pRxBuffPtr +=2;
mbed_official 610:813dcc80987e 2043 }
mbed_official 610:813dcc80987e 2044 else
mbed_official 610:813dcc80987e 2045 {
mbed_official 610:813dcc80987e 2046 *huart->pRxBuffPtr++ = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask);
mbed_official 610:813dcc80987e 2047 }
mbed_official 610:813dcc80987e 2048
mbed_official 610:813dcc80987e 2049 if(--huart->RxXferCount == 0)
mbed_official 610:813dcc80987e 2050 {
mbed_official 610:813dcc80987e 2051 __HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
mbed_official 610:813dcc80987e 2052
mbed_official 610:813dcc80987e 2053 /* Check if a transmit Process is ongoing or not */
mbed_official 610:813dcc80987e 2054 if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official 610:813dcc80987e 2055 {
mbed_official 610:813dcc80987e 2056 huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official 610:813dcc80987e 2057 }
mbed_official 610:813dcc80987e 2058 else
mbed_official 610:813dcc80987e 2059 {
mbed_official 610:813dcc80987e 2060 /* Disable the UART Parity Error Interrupt */
mbed_official 610:813dcc80987e 2061 __HAL_UART_DISABLE_IT(huart, UART_IT_PE);
mbed_official 610:813dcc80987e 2062
mbed_official 610:813dcc80987e 2063 /* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official 610:813dcc80987e 2064 __HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official 610:813dcc80987e 2065
mbed_official 610:813dcc80987e 2066 huart->State = HAL_UART_STATE_READY;
mbed_official 610:813dcc80987e 2067 }
mbed_official 610:813dcc80987e 2068
mbed_official 610:813dcc80987e 2069 HAL_UART_RxCpltCallback(huart);
mbed_official 610:813dcc80987e 2070
mbed_official 610:813dcc80987e 2071 return HAL_OK;
mbed_official 610:813dcc80987e 2072 }
mbed_official 610:813dcc80987e 2073
mbed_official 610:813dcc80987e 2074 return HAL_OK;
mbed_official 610:813dcc80987e 2075 }
mbed_official 610:813dcc80987e 2076 else
mbed_official 610:813dcc80987e 2077 {
mbed_official 610:813dcc80987e 2078 return HAL_BUSY;
mbed_official 610:813dcc80987e 2079 }
mbed_official 610:813dcc80987e 2080 }
mbed_official 610:813dcc80987e 2081
mbed_official 610:813dcc80987e 2082 /**
mbed_official 610:813dcc80987e 2083 * @}
mbed_official 610:813dcc80987e 2084 */
mbed_official 610:813dcc80987e 2085
mbed_official 610:813dcc80987e 2086 #endif /* HAL_UART_MODULE_ENABLED */
mbed_official 610:813dcc80987e 2087 /**
mbed_official 610:813dcc80987e 2088 * @}
mbed_official 610:813dcc80987e 2089 */
mbed_official 610:813dcc80987e 2090
mbed_official 610:813dcc80987e 2091 /**
mbed_official 610:813dcc80987e 2092 * @}
mbed_official 610:813dcc80987e 2093 */
mbed_official 610:813dcc80987e 2094
mbed_official 610:813dcc80987e 2095 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/