diff options
| author | Grigori Goronzy <greg@chown.ath.cx> | 2018-03-31 15:34:59 +0200 |
|---|---|---|
| committer | KevinOConnor <kevin@koconnor.net> | 2018-04-09 18:08:29 -0400 |
| commit | 75d57372115eb70ac22d16240c5c887df8ae1da8 (patch) | |
| tree | d31b31d32f80916c8406fc663994260a1acaa786 /lib/hal-stm32f1/source/stm32f1xx_hal_uart.c | |
| parent | e097b085209e4737abc71dbb0fc06408a6e1f6d1 (diff) | |
| download | kutter-75d57372115eb70ac22d16240c5c887df8ae1da8.tar.gz kutter-75d57372115eb70ac22d16240c5c887df8ae1da8.tar.xz kutter-75d57372115eb70ac22d16240c5c887df8ae1da8.zip | |
Add STM32F103 port
Add a fully functional STM32F1 port, currently mostly targeting STM32F103
microcontrollers. This requires an 8 MHz XTAL. The maximum possible step rate
is around 282K steps per second.
This uses stm32flash to burn the firmware. The bootloader needs to be started
by setting BOOT0 to 1 and resetting the MCU. There is no automatic bootloader,
unlike on Arduino.
Signed-off-by: Grigori Goronzy <greg@kinoho.net>
Diffstat (limited to 'lib/hal-stm32f1/source/stm32f1xx_hal_uart.c')
| -rw-r--r-- | lib/hal-stm32f1/source/stm32f1xx_hal_uart.c | 2558 |
1 files changed, 2558 insertions, 0 deletions
diff --git a/lib/hal-stm32f1/source/stm32f1xx_hal_uart.c b/lib/hal-stm32f1/source/stm32f1xx_hal_uart.c new file mode 100644 index 00000000..03162e0a --- /dev/null +++ b/lib/hal-stm32f1/source/stm32f1xx_hal_uart.c @@ -0,0 +1,2558 @@ +/**
+ ******************************************************************************
+ * @file stm32f1xx_hal_uart.c
+ * @author MCD Application Team
+ * @version V1.1.1
+ * @date 12-May-2017
+ * @brief UART HAL module driver.
+ * This file provides firmware functions to manage the following
+ * functionalities of the Universal Asynchronous Receiver Transmitter (UART) peripheral:
+ * + Initialization and de-initialization functions
+ * + IO operation functions
+ * + Peripheral Control functions
+ * + Peripheral State and Errors functions
+ @verbatim
+ ==============================================================================
+ ##### How to use this driver #####
+ ==============================================================================
+ [..]
+ The UART HAL driver can be used as follows:
+
+ (#) Declare a UART_HandleTypeDef handle structure.
+ (#) Initialize the UART low level resources by implementing the HAL_UART_MspInit() API:
+ (##) Enable the USARTx interface clock.
+ (##) UART pins configuration:
+ (+++) Enable the clock for the UART GPIOs.
+ (+++) Configure the UART pins (TX as alternate function pull-up, RX as alternate function Input).
+ (##) NVIC configuration if you need to use interrupt process (HAL_UART_Transmit_IT()
+ and HAL_UART_Receive_IT() APIs):
+ (+++) Configure the USARTx interrupt priority.
+ (+++) Enable the NVIC USART IRQ handle.
+ (##) DMA Configuration if you need to use DMA process (HAL_UART_Transmit_DMA()
+ and HAL_UART_Receive_DMA() APIs):
+ (+++) Declare a DMA handle structure for the Tx/Rx channel.
+ (+++) Enable the DMAx interface clock.
+ (+++) Configure the declared DMA handle structure with the required
+ Tx/Rx parameters.
+ (+++) Configure the DMA Tx/Rx channel.
+ (+++) Associate the initialized DMA handle to the UART DMA Tx/Rx handle.
+ (+++) Configure the priority and enable the NVIC for the transfer complete
+ interrupt on the DMA Tx/Rx channel.
+ (+++) Configure the USARTx interrupt priority and enable the NVIC USART IRQ handle
+ (used for last byte sending completion detection in DMA non circular mode)
+
+ (#) Program the Baud Rate, Word Length, Stop Bit, Parity, Hardware
+ flow control and Mode(Receiver/Transmitter) in the huart Init structure.
+
+ (#) For the UART asynchronous mode, initialize the UART registers by calling
+ the HAL_UART_Init() API.
+
+ (#) For the UART Half duplex mode, initialize the UART registers by calling
+ the HAL_HalfDuplex_Init() API.
+
+ (#) For the LIN mode, initialize the UART registers by calling the HAL_LIN_Init() API.
+
+ (#) For the Multi-Processor mode, initialize the UART registers by calling
+ the HAL_MultiProcessor_Init() API.
+
+ [..]
+ (@) The specific UART interrupts (Transmission complete interrupt,
+ RXNE interrupt and Error Interrupts) will be managed using the macros
+ __HAL_UART_ENABLE_IT() and __HAL_UART_DISABLE_IT() inside the transmit
+ and receive process.
+
+ [..]
+ (@) These APIs (HAL_UART_Init() and HAL_HalfDuplex_Init()) configure also the
+ low level Hardware GPIO, CLOCK, CORTEX...etc) by calling the customized
+ HAL_UART_MspInit() API.
+
+ [..]
+ Three operation modes are available within this driver:
+
+ *** Polling mode IO operation ***
+ =================================
+ [..]
+ (+) Send an amount of data in blocking mode using HAL_UART_Transmit()
+ (+) Receive an amount of data in blocking mode using HAL_UART_Receive()
+
+ *** Interrupt mode IO operation ***
+ ===================================
+ [..]
+ (+) Send an amount of data in non blocking mode using HAL_UART_Transmit_IT()
+ (+) At transmission end of transfer HAL_UART_TxCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_UART_TxCpltCallback
+ (+) Receive an amount of data in non blocking mode using HAL_UART_Receive_IT()
+ (+) At reception end of transfer HAL_UART_RxCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_UART_RxCpltCallback
+ (+) In case of transfer Error, HAL_UART_ErrorCallback() function is executed and user can
+ add his own code by customization of function pointer HAL_UART_ErrorCallback
+
+ *** DMA mode IO operation ***
+ ==============================
+ [..]
+ (+) Send an amount of data in non blocking mode (DMA) using HAL_UART_Transmit_DMA()
+ (+) At transmission end of half transfer HAL_UART_TxHalfCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_UART_TxHalfCpltCallback
+ (+) At transmission end of transfer HAL_UART_TxCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_UART_TxCpltCallback
+ (+) Receive an amount of data in non blocking mode (DMA) using HAL_UART_Receive_DMA()
+ (+) At reception end of half transfer HAL_UART_RxHalfCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_UART_RxHalfCpltCallback
+ (+) At reception end of transfer HAL_UART_RxCpltCallback is executed and user can
+ add his own code by customization of function pointer HAL_UART_RxCpltCallback
+ (+) In case of transfer Error, HAL_UART_ErrorCallback() function is executed and user can
+ add his own code by customization of function pointer HAL_UART_ErrorCallback
+ (+) Pause the DMA Transfer using HAL_UART_DMAPause()
+ (+) Resume the DMA Transfer using HAL_UART_DMAResume()
+ (+) Stop the DMA Transfer using HAL_UART_DMAStop()
+
+ *** UART HAL driver macros list ***
+ =============================================
+ [..]
+ Below the list of most used macros in UART HAL driver.
+
+ (+) __HAL_UART_ENABLE: Enable the UART peripheral
+ (+) __HAL_UART_DISABLE: Disable the UART peripheral
+ (+) __HAL_UART_GET_FLAG : Check whether the specified UART flag is set or not
+ (+) __HAL_UART_CLEAR_FLAG : Clear the specified UART pending flag
+ (+) __HAL_UART_ENABLE_IT: Enable the specified UART interrupt
+ (+) __HAL_UART_DISABLE_IT: Disable the specified UART interrupt
+ (+) __HAL_UART_GET_IT_SOURCE: Check whether the specified UART interrupt has occurred or not
+
+ [..]
+ (@) You can refer to the UART HAL driver header file for more useful macros
+ @endverbatim
+ [..]
+ (@) Additionnal remark: If the parity is enabled, then the MSB bit of the data written
+ in the data register is transmitted but is changed by the parity bit.
+ Depending on the frame length defined by the M bit (8-bits or 9-bits),
+ the possible UART frame formats are as listed in the following table:
+ +-------------------------------------------------------------+
+ | M bit | PCE bit | UART frame |
+ |---------------------|---------------------------------------|
+ | 0 | 0 | | SB | 8 bit data | STB | |
+ |---------|-----------|---------------------------------------|
+ | 0 | 1 | | SB | 7 bit data | PB | STB | |
+ |---------|-----------|---------------------------------------|
+ | 1 | 0 | | SB | 9 bit data | STB | |
+ |---------|-----------|---------------------------------------|
+ | 1 | 1 | | SB | 8 bit data | PB | STB | |
+ +-------------------------------------------------------------+
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f1xx_hal.h"
+
+/** @addtogroup STM32F1xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup UART UART
+ * @brief HAL UART module driver
+ * @{
+ */
+#ifdef HAL_UART_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @addtogroup UART_Private_Constants
+ * @{
+ */
+/**
+ * @}
+ */
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/** @addtogroup UART_Private_Functions
+ * @{
+ */
+static void UART_EndTxTransfer(UART_HandleTypeDef *huart);
+static void UART_EndRxTransfer(UART_HandleTypeDef *huart);
+static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma);
+static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
+static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
+static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
+static void UART_DMAError(DMA_HandleTypeDef *hdma);
+static void UART_DMAAbortOnError(DMA_HandleTypeDef *hdma);
+static void UART_DMATxAbortCallback(DMA_HandleTypeDef *hdma);
+static void UART_DMARxAbortCallback(DMA_HandleTypeDef *hdma);
+static void UART_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma);
+static void UART_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma);
+static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart);
+static HAL_StatusTypeDef UART_EndTransmit_IT(UART_HandleTypeDef *huart);
+static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart);
+static HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout(UART_HandleTypeDef *huart, uint32_t Flag, FlagStatus Status, uint32_t Tickstart, uint32_t Timeout);
+static void UART_SetConfig (UART_HandleTypeDef *huart);
+/**
+ * @}
+ */
+/* Exported functions ---------------------------------------------------------*/
+/** @defgroup UART_Exported_Functions UART Exported Functions
+ * @{
+ */
+
+/** @defgroup UART_Exported_Functions_Group1 Initialization and de-initialization functions
+ * @brief Initialization and Configuration functions
+ *
+@verbatim
+ ==============================================================================
+ ##### Initialization and Configuration functions #####
+ ==============================================================================
+ [..]
+ This subsection provides a set of functions allowing to initialize the USARTx or the UARTy
+ in asynchronous mode.
+ (+) For the asynchronous mode only these parameters can be configured:
+ (++) Baud Rate
+ (++) Word Length
+ (++) Stop Bit
+ (++) Parity: If the parity is enabled, then the MSB bit of the data written
+ in the data register is transmitted but is changed by the parity bit.
+ Depending on the frame length defined by the M bit (8-bits or 9-bits),
+ please refer to Reference manual for possible UART frame formats.
+ (++) Hardware flow control
+ (++) Receiver/transmitter modes
+ (++) Over Sampling Method
+ [..]
+ The HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_LIN_Init() and HAL_MultiProcessor_Init() APIs
+ follow respectively the UART asynchronous, UART Half duplex, LIN and Multi-Processor
+ configuration procedures (details for the procedures are available in reference manuals
+ (RM0008 for STM32F10Xxx MCUs and RM0041 for STM32F100xx MCUs)).
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Initializes the UART mode according to the specified parameters in
+ * the UART_InitTypeDef and create the associated handle.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart)
+{
+ /* Check the UART handle allocation */
+ if(huart == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ if(huart->Init.HwFlowCtl != UART_HWCONTROL_NONE)
+ {
+ /* The hardware flow control is available only for USART1, USART2, USART3 */
+ assert_param(IS_UART_HWFLOW_INSTANCE(huart->Instance));
+ assert_param(IS_UART_HARDWARE_FLOW_CONTROL(huart->Init.HwFlowCtl));
+ }
+ else
+ {
+ assert_param(IS_UART_INSTANCE(huart->Instance));
+ }
+ assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
+#if defined(USART_CR1_OVER8)
+ assert_param(IS_UART_OVERSAMPLING(huart->Init.OverSampling));
+#endif /* USART_CR1_OVER8 */
+
+ if(huart->gState == HAL_UART_STATE_RESET)
+ {
+ /* Allocate lock resource and initialize it */
+ huart->Lock = HAL_UNLOCKED;
+
+ /* Init the low level hardware */
+ HAL_UART_MspInit(huart);
+ }
+
+ huart->gState = HAL_UART_STATE_BUSY;
+
+ /* Disable the peripheral */
+ __HAL_UART_DISABLE(huart);
+
+ /* Set the UART Communication parameters */
+ UART_SetConfig(huart);
+
+ /* In asynchronous mode, the following bits must be kept cleared:
+ - LINEN and CLKEN bits in the USART_CR2 register,
+ - SCEN, HDSEL and IREN bits in the USART_CR3 register.*/
+ CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN));
+ CLEAR_BIT(huart->Instance->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN));
+
+ /* Enable the peripheral */
+ __HAL_UART_ENABLE(huart);
+
+ /* Initialize the UART state */
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+ huart->gState= HAL_UART_STATE_READY;
+ huart->RxState= HAL_UART_STATE_READY;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Initializes the half-duplex mode according to the specified
+ * parameters in the UART_InitTypeDef and create the associated handle.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart)
+{
+ /* Check the UART handle allocation */
+ if(huart == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_UART_HALFDUPLEX_INSTANCE(huart->Instance));
+ assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
+#if defined(USART_CR1_OVER8)
+ assert_param(IS_UART_OVERSAMPLING(huart->Init.OverSampling));
+#endif /* USART_CR1_OVER8 */
+ if(huart->gState == HAL_UART_STATE_RESET)
+ {
+ /* Allocate lock resource and initialize it */
+ huart->Lock = HAL_UNLOCKED;
+ /* Init the low level hardware */
+ HAL_UART_MspInit(huart);
+ }
+
+ huart->gState = HAL_UART_STATE_BUSY;
+
+ /* Disable the peripheral */
+ __HAL_UART_DISABLE(huart);
+
+ /* Set the UART Communication parameters */
+ UART_SetConfig(huart);
+
+ /* In half-duplex mode, the following bits must be kept cleared:
+ - LINEN and CLKEN bits in the USART_CR2 register,
+ - SCEN and IREN bits in the USART_CR3 register.*/
+ CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN));
+ CLEAR_BIT(huart->Instance->CR3, (USART_CR3_IREN | USART_CR3_SCEN));
+
+ /* Enable the Half-Duplex mode by setting the HDSEL bit in the CR3 register */
+ SET_BIT(huart->Instance->CR3, USART_CR3_HDSEL);
+
+ /* Enable the peripheral */
+ __HAL_UART_ENABLE(huart);
+
+ /* Initialize the UART state*/
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+ huart->gState= HAL_UART_STATE_READY;
+ huart->RxState= HAL_UART_STATE_READY;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Initializes the LIN mode according to the specified
+ * parameters in the UART_InitTypeDef and create the associated handle.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @param BreakDetectLength: Specifies the LIN break detection length.
+ * This parameter can be one of the following values:
+ * @arg UART_LINBREAKDETECTLENGTH_10B: 10-bit break detection
+ * @arg UART_LINBREAKDETECTLENGTH_11B: 11-bit break detection
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength)
+{
+ /* Check the UART handle allocation */
+ if(huart == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the LIN UART instance */
+ assert_param(IS_UART_LIN_INSTANCE(huart->Instance));
+ /* Check the Break detection length parameter */
+ assert_param(IS_UART_LIN_BREAK_DETECT_LENGTH(BreakDetectLength));
+ assert_param(IS_UART_LIN_WORD_LENGTH(huart->Init.WordLength));
+#if defined(USART_CR1_OVER8)
+ assert_param(IS_UART_LIN_OVERSAMPLING(huart->Init.OverSampling));
+#endif /* USART_CR1_OVER8 */
+
+ if(huart->gState == HAL_UART_STATE_RESET)
+ {
+ /* Allocate lock resource and initialize it */
+ huart->Lock = HAL_UNLOCKED;
+ /* Init the low level hardware */
+ HAL_UART_MspInit(huart);
+ }
+
+ huart->gState = HAL_UART_STATE_BUSY;
+
+ /* Disable the peripheral */
+ __HAL_UART_DISABLE(huart);
+
+ /* Set the UART Communication parameters */
+ UART_SetConfig(huart);
+
+ /* In LIN mode, the following bits must be kept cleared:
+ - CLKEN bits in the USART_CR2 register,
+ - SCEN and IREN bits in the USART_CR3 register.*/
+ CLEAR_BIT(huart->Instance->CR2, USART_CR2_CLKEN);
+ CLEAR_BIT(huart->Instance->CR3, (USART_CR3_HDSEL | USART_CR3_IREN | USART_CR3_SCEN));
+
+ /* Enable the LIN mode by setting the LINEN bit in the CR2 register */
+ SET_BIT(huart->Instance->CR2, USART_CR2_LINEN);
+
+ /* Set the USART LIN Break detection length. */
+ MODIFY_REG(huart->Instance->CR2, USART_CR2_LBDL, BreakDetectLength);
+
+ /* Enable the peripheral */
+ __HAL_UART_ENABLE(huart);
+
+ /* Initialize the UART state*/
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+ huart->gState= HAL_UART_STATE_READY;
+ huart->RxState= HAL_UART_STATE_READY;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Initializes the Multi-Processor mode according to the specified
+ * parameters in the UART_InitTypeDef and create the associated handle.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @param Address: USART address
+ * @param WakeUpMethod: specifies the USART wake-up method.
+ * This parameter can be one of the following values:
+ * @arg UART_WAKEUPMETHOD_IDLELINE: Wake-up by an idle line detection
+ * @arg UART_WAKEUPMETHOD_ADDRESSMARK: Wake-up by an address mark
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod)
+{
+ /* Check the UART handle allocation */
+ if(huart == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check UART instance capabilities */
+ assert_param(IS_UART_MULTIPROCESSOR_INSTANCE(huart->Instance));
+
+ /* Check the Address & wake up method parameters */
+ assert_param(IS_UART_WAKEUPMETHOD(WakeUpMethod));
+ assert_param(IS_UART_ADDRESS(Address));
+ assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
+#if defined(USART_CR1_OVER8)
+ assert_param(IS_UART_OVERSAMPLING(huart->Init.OverSampling));
+#endif /* USART_CR1_OVER8 */
+
+ if(huart->gState == HAL_UART_STATE_RESET)
+ {
+ /* Allocate lock resource and initialize it */
+ huart->Lock = HAL_UNLOCKED;
+ /* Init the low level hardware */
+ HAL_UART_MspInit(huart);
+ }
+
+ huart->gState = HAL_UART_STATE_BUSY;
+
+ /* Disable the peripheral */
+ __HAL_UART_DISABLE(huart);
+
+ /* Set the UART Communication parameters */
+ UART_SetConfig(huart);
+
+ /* In Multi-Processor mode, the following bits must be kept cleared:
+ - LINEN and CLKEN bits in the USART_CR2 register,
+ - SCEN, HDSEL and IREN bits in the USART_CR3 register */
+ CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN));
+ CLEAR_BIT(huart->Instance->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN));
+
+ /* Set the USART address node */
+ MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, Address);
+
+ /* Set the wake up method by setting the WAKE bit in the CR1 register */
+ MODIFY_REG(huart->Instance->CR1, USART_CR1_WAKE, WakeUpMethod);
+
+ /* Enable the peripheral */
+ __HAL_UART_ENABLE(huart);
+
+ /* Initialize the UART state */
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+ huart->gState = HAL_UART_STATE_READY;
+ huart->RxState = HAL_UART_STATE_READY;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief DeInitializes the UART peripheral.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart)
+{
+ /* Check the UART handle allocation */
+ if(huart == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_UART_INSTANCE(huart->Instance));
+
+ huart->gState = HAL_UART_STATE_BUSY;
+
+ /* DeInit the low level hardware */
+ HAL_UART_MspDeInit(huart);
+
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+ huart->gState = HAL_UART_STATE_RESET;
+ huart->RxState = HAL_UART_STATE_RESET;
+
+ /* Process Unlock */
+ __HAL_UNLOCK(huart);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief UART MSP Init.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval None
+ */
+__weak void HAL_UART_MspInit(UART_HandleTypeDef *huart)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(huart);
+ /* NOTE: This function should not be modified, when the callback is needed,
+ the HAL_UART_MspInit could be implemented in the user file
+ */
+}
+
+/**
+ * @brief UART MSP DeInit.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval None
+ */
+__weak void HAL_UART_MspDeInit(UART_HandleTypeDef *huart)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(huart);
+ /* NOTE: This function should not be modified, when the callback is needed,
+ the HAL_UART_MspDeInit could be implemented in the user file
+ */
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup UART_Exported_Functions_Group2 IO operation functions
+ * @brief UART Transmit and Receive functions
+ *
+@verbatim
+ ==============================================================================
+ ##### IO operation functions #####
+ ==============================================================================
+ [..]
+ This subsection provides a set of functions allowing to manage the UART asynchronous
+ and Half duplex data transfers.
+
+ (#) There are two modes of transfer:
+ (++) Blocking mode: The communication is performed in polling mode.
+ The HAL status of all data processing is returned by the same function
+ after finishing transfer.
+ (++) Non blocking mode: The communication is performed using Interrupts
+ or DMA, these APIs return the HAL status.
+ The end of the data processing will be indicated through the
+ dedicated UART IRQ when using Interrupt mode or the DMA IRQ when
+ using DMA mode.
+ The HAL_UART_TxCpltCallback(), HAL_UART_RxCpltCallback() user callbacks
+ will be executed respectively at the end of the transmit or receive process.
+ The HAL_UART_ErrorCallback() user callback will be executed when
+ a communication error is detected.
+
+ (#) Blocking mode APIs are:
+ (++) HAL_UART_Transmit()
+ (++) HAL_UART_Receive()
+
+ (#) Non Blocking mode APIs with Interrupt are:
+ (++) HAL_UART_Transmit_IT()
+ (++) HAL_UART_Receive_IT()
+ (++) HAL_UART_IRQHandler()
+
+ (#) Non Blocking mode functions with DMA are:
+ (++) HAL_UART_Transmit_DMA()
+ (++) HAL_UART_Receive_DMA()
+ (++) HAL_UART_DMAPause()
+ (++) HAL_UART_DMAResume()
+ (++) HAL_UART_DMAStop()
+
+ (#) A set of Transfer Complete Callbacks are provided in non blocking mode:
+ (++) HAL_UART_TxHalfCpltCallback()
+ (++) HAL_UART_TxCpltCallback()
+ (++) HAL_UART_RxHalfCpltCallback()
+ (++) HAL_UART_RxCpltCallback()
+ (++) HAL_UART_ErrorCallback()
+
+ [..]
+ (@) In the Half duplex communication, it is forbidden to run the transmit
+ and receive process in parallel, the UART state HAL_UART_STATE_BUSY_TX_RX
+ can't be useful.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Sends an amount of data in blocking mode.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @param pData: Pointer to data buffer
+ * @param Size: Amount of data to be sent
+ * @param Timeout: Timeout duration
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout)
+{
+ uint16_t* tmp;
+ uint32_t tickstart = 0U;
+
+ /* Check that a Tx process is not already ongoing */
+ if(huart->gState == HAL_UART_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0U))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(huart);
+
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+ huart->gState = HAL_UART_STATE_BUSY_TX;
+
+ /* Init tickstart for timeout managment */
+ tickstart = HAL_GetTick();
+
+ huart->TxXferSize = Size;
+ huart->TxXferCount = Size;
+ while(huart->TxXferCount > 0U)
+ {
+ huart->TxXferCount--;
+ if(huart->Init.WordLength == UART_WORDLENGTH_9B)
+ {
+ if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ tmp = (uint16_t*) pData;
+ huart->Instance->DR = (*tmp & (uint16_t)0x01FF);
+ if(huart->Init.Parity == UART_PARITY_NONE)
+ {
+ pData +=2U;
+ }
+ else
+ {
+ pData +=1U;
+ }
+ }
+ else
+ {
+ if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ huart->Instance->DR = (*pData++ & (uint8_t)0xFF);
+ }
+ }
+
+ if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, tickstart, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+
+ /* At end of Tx process, restore huart->gState to Ready */
+ huart->gState = HAL_UART_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(huart);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Receive an amount of data in blocking mode.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @param pData: Pointer to data buffer
+ * @param Size: Amount of data to be received
+ * @param Timeout: Timeout duration
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout)
+{
+ uint16_t* tmp;
+ uint32_t tickstart = 0U;
+
+ /* Check that a Rx process is not already ongoing */
+ if(huart->RxState == HAL_UART_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0U))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(huart);
+
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+ huart->RxState = HAL_UART_STATE_BUSY_RX;
+
+ /* Init tickstart for timeout managment */
+ tickstart = HAL_GetTick();
+
+ huart->RxXferSize = Size;
+ huart->RxXferCount = Size;
+
+ /* Check the remain data to be received */
+ while(huart->RxXferCount > 0U)
+ {
+ huart->RxXferCount--;
+ if(huart->Init.WordLength == UART_WORDLENGTH_9B)
+ {
+ if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ tmp = (uint16_t*)pData;
+ if(huart->Init.Parity == UART_PARITY_NONE)
+ {
+ *tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x01FF);
+ pData +=2U;
+ }
+ else
+ {
+ *tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x00FF);
+ pData +=1U;
+ }
+
+ }
+ else
+ {
+ if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ if(huart->Init.Parity == UART_PARITY_NONE)
+ {
+ *pData++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x00FF);
+ }
+ else
+ {
+ *pData++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x007F);
+ }
+
+ }
+ }
+
+ /* At end of Rx process, restore huart->RxState to Ready */
+ huart->RxState = HAL_UART_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(huart);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Sends an amount of data in non blocking mode.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @param pData: Pointer to data buffer
+ * @param Size: Amount of data to be sent
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
+{
+ /* Check that a Tx process is not already ongoing */
+ if(huart->gState == HAL_UART_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0U))
+ {
+ return HAL_ERROR;
+ }
+ /* Process Locked */
+ __HAL_LOCK(huart);
+
+ huart->pTxBuffPtr = pData;
+ huart->TxXferSize = Size;
+ huart->TxXferCount = Size;
+
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+ huart->gState = HAL_UART_STATE_BUSY_TX;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(huart);
+
+ /* Enable the UART Transmit data register empty Interrupt */
+ __HAL_UART_ENABLE_IT(huart, UART_IT_TXE);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Receives an amount of data in non blocking mode.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @param pData: Pointer to data buffer
+ * @param Size: Amount of data to be received
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
+{
+ /* Check that a Rx process is not already ongoing */
+ if(huart->RxState == HAL_UART_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0U))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(huart);
+
+ huart->pRxBuffPtr = pData;
+ huart->RxXferSize = Size;
+ huart->RxXferCount = Size;
+
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+ huart->RxState = HAL_UART_STATE_BUSY_RX;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(huart);
+
+ /* Enable the UART Parity Error Interrupt */
+ __HAL_UART_ENABLE_IT(huart, UART_IT_PE);
+
+ /* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
+ __HAL_UART_ENABLE_IT(huart, UART_IT_ERR);
+
+ /* Enable the UART Data Register not empty Interrupt */
+ __HAL_UART_ENABLE_IT(huart, UART_IT_RXNE);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Sends an amount of data in non blocking mode.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @param pData: Pointer to data buffer
+ * @param Size: Amount of data to be sent
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
+{
+ uint32_t *tmp;
+
+ /* Check that a Tx process is not already ongoing */
+ if(huart->gState == HAL_UART_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0U))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(huart);
+
+ huart->pTxBuffPtr = pData;
+ huart->TxXferSize = Size;
+ huart->TxXferCount = Size;
+
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+ huart->gState = HAL_UART_STATE_BUSY_TX;
+
+ /* Set the UART DMA transfer complete callback */
+ huart->hdmatx->XferCpltCallback = UART_DMATransmitCplt;
+
+ /* Set the UART DMA Half transfer complete callback */
+ huart->hdmatx->XferHalfCpltCallback = UART_DMATxHalfCplt;
+
+ /* Set the DMA error callback */
+ huart->hdmatx->XferErrorCallback = UART_DMAError;
+
+ /* Set the DMA abort callback */
+ huart->hdmatx->XferAbortCallback = NULL;
+
+ /* Enable the UART transmit DMA channel */
+ tmp = (uint32_t*)&pData;
+ HAL_DMA_Start_IT(huart->hdmatx, *(uint32_t*)tmp, (uint32_t)&huart->Instance->DR, Size);
+
+ /* Clear the TC flag in the SR register by writing 0 to it */
+ __HAL_UART_CLEAR_FLAG(huart, UART_FLAG_TC);
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(huart);
+
+ /* Enable the DMA transfer for transmit request by setting the DMAT bit
+ in the UART CR3 register */
+ SET_BIT(huart->Instance->CR3, USART_CR3_DMAT);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Receives an amount of data in non blocking mode.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @param pData: Pointer to data buffer
+ * @param Size: Amount of data to be received
+ * @note When the UART parity is enabled (PCE = 1) the data received contain the parity bit.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
+{
+ uint32_t *tmp;
+
+ /* Check that a Rx process is not already ongoing */
+ if(huart->RxState == HAL_UART_STATE_READY)
+ {
+ if((pData == NULL) || (Size == 0U))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process Locked */
+ __HAL_LOCK(huart);
+
+ huart->pRxBuffPtr = pData;
+ huart->RxXferSize = Size;
+
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+ huart->RxState = HAL_UART_STATE_BUSY_RX;
+
+ /* Set the UART DMA transfer complete callback */
+ huart->hdmarx->XferCpltCallback = UART_DMAReceiveCplt;
+
+ /* Set the UART DMA Half transfer complete callback */
+ huart->hdmarx->XferHalfCpltCallback = UART_DMARxHalfCplt;
+
+ /* Set the DMA error callback */
+ huart->hdmarx->XferErrorCallback = UART_DMAError;
+
+ /* Set the DMA abort callback */
+ huart->hdmarx->XferAbortCallback = NULL;
+
+ /* Enable the DMA channel */
+ tmp = (uint32_t*)&pData;
+ HAL_DMA_Start_IT(huart->hdmarx, (uint32_t)&huart->Instance->DR, *(uint32_t*)tmp, Size);
+
+ /* Clear the Overrun flag just before enabling the DMA Rx request: can be mandatory for the second transfer */
+ __HAL_UART_CLEAR_OREFLAG(huart);
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(huart);
+
+ /* Enable the UART Parity Error Interrupt */
+ SET_BIT(huart->Instance->CR1, USART_CR1_PEIE);
+
+ /* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
+ SET_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+ /* Enable the DMA transfer for the receiver request by setting the DMAR bit
+ in the UART CR3 register */
+ SET_BIT(huart->Instance->CR3, USART_CR3_DMAR);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Pauses the DMA Transfer.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart)
+{
+ uint32_t dmarequest = 0x00U;
+
+ /* Process Locked */
+ __HAL_LOCK(huart);
+
+ dmarequest = HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT);
+ if((huart->gState == HAL_UART_STATE_BUSY_TX) && dmarequest)
+ {
+ /* Disable the UART DMA Tx request */
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
+ }
+
+ dmarequest = HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR);
+ if((huart->RxState == HAL_UART_STATE_BUSY_RX) && dmarequest)
+ {
+ /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+ CLEAR_BIT(huart->Instance->CR1, USART_CR1_PEIE);
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+ /* Disable the UART DMA Rx request */
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
+ }
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(huart);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Resumes the DMA Transfer.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart)
+{
+ /* Process Locked */
+ __HAL_LOCK(huart);
+
+ if(huart->gState == HAL_UART_STATE_BUSY_TX)
+ {
+ /* Enable the UART DMA Tx request */
+ SET_BIT(huart->Instance->CR3, USART_CR3_DMAT);
+ }
+
+ if(huart->RxState == HAL_UART_STATE_BUSY_RX)
+ {
+ /* Clear the Overrun flag before resuming the Rx transfer*/
+ __HAL_UART_CLEAR_OREFLAG(huart);
+
+ /* Reenable PE and ERR (Frame error, noise error, overrun error) interrupts */
+ SET_BIT(huart->Instance->CR1, USART_CR1_PEIE);
+ SET_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+ /* Enable the UART DMA Rx request */
+ SET_BIT(huart->Instance->CR3, USART_CR3_DMAR);
+ }
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(huart);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Stops the DMA Transfer.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart)
+{
+ uint32_t dmarequest = 0x00U;
+ /* The Lock is not implemented on this API to allow the user application
+ to call the HAL UART API under callbacks HAL_UART_TxCpltCallback() / HAL_UART_RxCpltCallback():
+ when calling HAL_DMA_Abort() API the DMA TX/RX Transfer complete interrupt is generated
+ and the correspond call back is executed HAL_UART_TxCpltCallback() / HAL_UART_RxCpltCallback()
+ */
+
+ /* Stop UART DMA Tx request if ongoing */
+ dmarequest = HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT);
+ if((huart->gState == HAL_UART_STATE_BUSY_TX) && dmarequest)
+ {
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
+
+ /* Abort the UART DMA Tx channel */
+ if(huart->hdmatx != NULL)
+ {
+ HAL_DMA_Abort(huart->hdmatx);
+ }
+ UART_EndTxTransfer(huart);
+ }
+
+ /* Stop UART DMA Rx request if ongoing */
+ dmarequest = HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR);
+ if((huart->RxState == HAL_UART_STATE_BUSY_RX) && dmarequest)
+ {
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
+
+ /* Abort the UART DMA Rx channel */
+ if(huart->hdmarx != NULL)
+ {
+ HAL_DMA_Abort(huart->hdmarx);
+ }
+ UART_EndRxTransfer(huart);
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Abort ongoing transfers (blocking mode).
+ * @param huart UART handle.
+ * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
+ * This procedure performs following operations :
+ * - Disable PPP Interrupts
+ * - Disable the DMA transfer in the peripheral register (if enabled)
+ * - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode)
+ * - Set handle State to READY
+ * @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed.
+ * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_UART_Abort(UART_HandleTypeDef *huart)
+{
+ /* Disable TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+ CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE));
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+ /* Disable the UART DMA Tx request if enabled */
+ if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT))
+ {
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
+
+ /* Abort the UART DMA Tx channel: use blocking DMA Abort API (no callback) */
+ if(huart->hdmatx != NULL)
+ {
+ /* Set the UART DMA Abort callback to Null.
+ No call back execution at end of DMA abort procedure */
+ huart->hdmatx->XferAbortCallback = NULL;
+
+ HAL_DMA_Abort(huart->hdmatx);
+ }
+ }
+
+ /* Disable the UART DMA Rx request if enabled */
+ if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
+ {
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
+
+ /* Abort the UART DMA Rx channel: use blocking DMA Abort API (no callback) */
+ if(huart->hdmarx != NULL)
+ {
+ /* Set the UART DMA Abort callback to Null.
+ No call back execution at end of DMA abort procedure */
+ huart->hdmarx->XferAbortCallback = NULL;
+
+ HAL_DMA_Abort(huart->hdmarx);
+ }
+ }
+
+ /* Reset Tx and Rx transfer counters */
+ huart->TxXferCount = 0x00U;
+ huart->RxXferCount = 0x00U;
+
+ /* Reset ErrorCode */
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+
+ /* Restore huart->RxState and huart->gState to Ready */
+ huart->RxState = HAL_UART_STATE_READY;
+ huart->gState = HAL_UART_STATE_READY;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Abort ongoing Transmit transfer (blocking mode).
+ * @param huart UART handle.
+ * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
+ * This procedure performs following operations :
+ * - Disable PPP Interrupts
+ * - Disable the DMA transfer in the peripheral register (if enabled)
+ * - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode)
+ * - Set handle State to READY
+ * @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed.
+ * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_UART_AbortTransmit(UART_HandleTypeDef *huart)
+{
+ /* Disable TXEIE and TCIE interrupts */
+ CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
+
+ /* Disable the UART DMA Tx request if enabled */
+ if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT))
+ {
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
+
+ /* Abort the UART DMA Tx channel : use blocking DMA Abort API (no callback) */
+ if(huart->hdmatx != NULL)
+ {
+ /* Set the UART DMA Abort callback to Null.
+ No call back execution at end of DMA abort procedure */
+ huart->hdmatx->XferAbortCallback = NULL;
+
+ HAL_DMA_Abort(huart->hdmatx);
+ }
+ }
+
+ /* Reset Tx transfer counter */
+ huart->TxXferCount = 0x00U;
+
+ /* Restore huart->gState to Ready */
+ huart->gState = HAL_UART_STATE_READY;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Abort ongoing Receive transfer (blocking mode).
+ * @param huart UART handle.
+ * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
+ * This procedure performs following operations :
+ * - Disable PPP Interrupts
+ * - Disable the DMA transfer in the peripheral register (if enabled)
+ * - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode)
+ * - Set handle State to READY
+ * @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed.
+ * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_UART_AbortReceive(UART_HandleTypeDef *huart)
+{
+ /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+ CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+ /* Disable the UART DMA Rx request if enabled */
+ if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
+ {
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
+
+ /* Abort the UART DMA Rx channel : use blocking DMA Abort API (no callback) */
+ if(huart->hdmarx != NULL)
+ {
+ /* Set the UART DMA Abort callback to Null.
+ No call back execution at end of DMA abort procedure */
+ huart->hdmarx->XferAbortCallback = NULL;
+
+ HAL_DMA_Abort(huart->hdmarx);
+ }
+ }
+
+ /* Reset Rx transfer counter */
+ huart->RxXferCount = 0x00U;
+
+ /* Restore huart->RxState to Ready */
+ huart->RxState = HAL_UART_STATE_READY;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Abort ongoing transfers (Interrupt mode).
+ * @param huart UART handle.
+ * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
+ * This procedure performs following operations :
+ * - Disable PPP Interrupts
+ * - Disable the DMA transfer in the peripheral register (if enabled)
+ * - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode)
+ * - Set handle State to READY
+ * - At abort completion, call user abort complete callback
+ * @note This procedure is executed in Interrupt mode, meaning that abort procedure could be
+ * considered as completed only when user abort complete callback is executed (not when exiting function).
+ * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_UART_Abort_IT(UART_HandleTypeDef *huart)
+{
+ uint32_t AbortCplt = 0x01U;
+
+ /* Disable TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+ CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE));
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+ /* If DMA Tx and/or DMA Rx Handles are associated to UART Handle, DMA Abort complete callbacks should be initialised
+ before any call to DMA Abort functions */
+ /* DMA Tx Handle is valid */
+ if(huart->hdmatx != NULL)
+ {
+ /* Set DMA Abort Complete callback if UART DMA Tx request if enabled.
+ Otherwise, set it to NULL */
+ if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT))
+ {
+ huart->hdmatx->XferAbortCallback = UART_DMATxAbortCallback;
+ }
+ else
+ {
+ huart->hdmatx->XferAbortCallback = NULL;
+ }
+ }
+ /* DMA Rx Handle is valid */
+ if(huart->hdmarx != NULL)
+ {
+ /* Set DMA Abort Complete callback if UART DMA Rx request if enabled.
+ Otherwise, set it to NULL */
+ if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
+ {
+ huart->hdmarx->XferAbortCallback = UART_DMARxAbortCallback;
+ }
+ else
+ {
+ huart->hdmarx->XferAbortCallback = NULL;
+ }
+ }
+
+ /* Disable the UART DMA Tx request if enabled */
+ if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT))
+ {
+ /* Disable DMA Tx at UART level */
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
+
+ /* Abort the UART DMA Tx channel : use non blocking DMA Abort API (callback) */
+ if(huart->hdmatx != NULL)
+ {
+ /* UART Tx DMA Abort callback has already been initialised :
+ will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */
+
+ /* Abort DMA TX */
+ if(HAL_DMA_Abort_IT(huart->hdmatx) != HAL_OK)
+ {
+ huart->hdmatx->XferAbortCallback = NULL;
+ }
+ else
+ {
+ AbortCplt = 0x00U;
+ }
+ }
+ }
+
+ /* Disable the UART DMA Rx request if enabled */
+ if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
+ {
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
+
+ /* Abort the UART DMA Rx channel : use non blocking DMA Abort API (callback) */
+ if(huart->hdmarx != NULL)
+ {
+ /* UART Rx DMA Abort callback has already been initialised :
+ will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */
+
+ /* Abort DMA RX */
+ if(HAL_DMA_Abort_IT(huart->hdmarx) != HAL_OK)
+ {
+ huart->hdmarx->XferAbortCallback = NULL;
+ AbortCplt = 0x01U;
+ }
+ else
+ {
+ AbortCplt = 0x00U;
+ }
+ }
+ }
+
+ /* if no DMA abort complete callback execution is required => call user Abort Complete callback */
+ if(AbortCplt == 0x01U)
+ {
+ /* Reset Tx and Rx transfer counters */
+ huart->TxXferCount = 0x00U;
+ huart->RxXferCount = 0x00U;
+
+ /* Reset ErrorCode */
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+
+ /* Restore huart->gState and huart->RxState to Ready */
+ huart->gState = HAL_UART_STATE_READY;
+ huart->RxState = HAL_UART_STATE_READY;
+
+ /* As no DMA to be aborted, call directly user Abort complete callback */
+ HAL_UART_AbortCpltCallback(huart);
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Abort ongoing Transmit transfer (Interrupt mode).
+ * @param huart UART handle.
+ * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
+ * This procedure performs following operations :
+ * - Disable PPP Interrupts
+ * - Disable the DMA transfer in the peripheral register (if enabled)
+ * - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode)
+ * - Set handle State to READY
+ * - At abort completion, call user abort complete callback
+ * @note This procedure is executed in Interrupt mode, meaning that abort procedure could be
+ * considered as completed only when user abort complete callback is executed (not when exiting function).
+ * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_UART_AbortTransmit_IT(UART_HandleTypeDef *huart)
+{
+ /* Disable TXEIE and TCIE interrupts */
+ CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
+
+ /* Disable the UART DMA Tx request if enabled */
+ if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT))
+ {
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
+
+ /* Abort the UART DMA Tx channel : use blocking DMA Abort API (no callback) */
+ if(huart->hdmatx != NULL)
+ {
+ /* Set the UART DMA Abort callback :
+ will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */
+ huart->hdmatx->XferAbortCallback = UART_DMATxOnlyAbortCallback;
+
+ /* Abort DMA TX */
+ if(HAL_DMA_Abort_IT(huart->hdmatx) != HAL_OK)
+ {
+ /* Call Directly huart->hdmatx->XferAbortCallback function in case of error */
+ huart->hdmatx->XferAbortCallback(huart->hdmatx);
+ }
+ }
+ else
+ {
+ /* Reset Tx transfer counter */
+ huart->TxXferCount = 0x00U;
+
+ /* Restore huart->gState to Ready */
+ huart->gState = HAL_UART_STATE_READY;
+
+ /* As no DMA to be aborted, call directly user Abort complete callback */
+ HAL_UART_AbortTransmitCpltCallback(huart);
+ }
+ }
+ else
+ {
+ /* Reset Tx transfer counter */
+ huart->TxXferCount = 0x00U;
+
+ /* Restore huart->gState to Ready */
+ huart->gState = HAL_UART_STATE_READY;
+
+ /* As no DMA to be aborted, call directly user Abort complete callback */
+ HAL_UART_AbortTransmitCpltCallback(huart);
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Abort ongoing Receive transfer (Interrupt mode).
+ * @param huart UART handle.
+ * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
+ * This procedure performs following operations :
+ * - Disable PPP Interrupts
+ * - Disable the DMA transfer in the peripheral register (if enabled)
+ * - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode)
+ * - Set handle State to READY
+ * - At abort completion, call user abort complete callback
+ * @note This procedure is executed in Interrupt mode, meaning that abort procedure could be
+ * considered as completed only when user abort complete callback is executed (not when exiting function).
+ * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_UART_AbortReceive_IT(UART_HandleTypeDef *huart)
+{
+ /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+ CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+ /* Disable the UART DMA Rx request if enabled */
+ if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
+ {
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
+
+ /* Abort the UART DMA Rx channel : use blocking DMA Abort API (no callback) */
+ if(huart->hdmarx != NULL)
+ {
+ /* Set the UART DMA Abort callback :
+ will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */
+ huart->hdmarx->XferAbortCallback = UART_DMARxOnlyAbortCallback;
+
+ /* Abort DMA RX */
+ if(HAL_DMA_Abort_IT(huart->hdmarx) != HAL_OK)
+ {
+ /* Call Directly huart->hdmarx->XferAbortCallback function in case of error */
+ huart->hdmarx->XferAbortCallback(huart->hdmarx);
+ }
+ }
+ else
+ {
+ /* Reset Rx transfer counter */
+ huart->RxXferCount = 0x00U;
+
+ /* Restore huart->RxState to Ready */
+ huart->RxState = HAL_UART_STATE_READY;
+
+ /* As no DMA to be aborted, call directly user Abort complete callback */
+ HAL_UART_AbortReceiveCpltCallback(huart);
+ }
+ }
+ else
+ {
+ /* Reset Rx transfer counter */
+ huart->RxXferCount = 0x00U;
+
+ /* Restore huart->RxState to Ready */
+ huart->RxState = HAL_UART_STATE_READY;
+
+ /* As no DMA to be aborted, call directly user Abort complete callback */
+ HAL_UART_AbortReceiveCpltCallback(huart);
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief This function handles UART interrupt request.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval None
+ */
+void HAL_UART_IRQHandler(UART_HandleTypeDef *huart)
+{
+ uint32_t isrflags = READ_REG(huart->Instance->SR);
+ uint32_t cr1its = READ_REG(huart->Instance->CR1);
+ uint32_t cr3its = READ_REG(huart->Instance->CR3);
+ uint32_t errorflags = 0x00U;
+ uint32_t dmarequest = 0x00U;
+
+ /* If no error occurs */
+ errorflags = (isrflags & (uint32_t)(USART_SR_PE | USART_SR_FE | USART_SR_ORE | USART_SR_NE));
+ if(errorflags == RESET)
+ {
+ /* UART in mode Receiver -------------------------------------------------*/
+ if(((isrflags & USART_SR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET))
+ {
+ UART_Receive_IT(huart);
+ return;
+ }
+ }
+
+ /* If some errors occur */
+ if((errorflags != RESET) && (((cr3its & USART_CR3_EIE) != RESET) || ((cr1its & (USART_CR1_RXNEIE | USART_CR1_PEIE)) != RESET)))
+ {
+ /* UART parity error interrupt occurred ----------------------------------*/
+ if(((isrflags & USART_SR_PE) != RESET) && ((cr1its & USART_CR1_PEIE) != RESET))
+ {
+ huart->ErrorCode |= HAL_UART_ERROR_PE;
+ }
+
+ /* UART noise error interrupt occurred -----------------------------------*/
+ if(((isrflags & USART_SR_NE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
+ {
+ huart->ErrorCode |= HAL_UART_ERROR_NE;
+ }
+
+ /* UART frame error interrupt occurred -----------------------------------*/
+ if(((isrflags & USART_SR_FE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
+ {
+ huart->ErrorCode |= HAL_UART_ERROR_FE;
+ }
+
+ /* UART Over-Run interrupt occurred --------------------------------------*/
+ if(((isrflags & USART_SR_ORE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
+ {
+ huart->ErrorCode |= HAL_UART_ERROR_ORE;
+ }
+
+ /* Call UART Error Call back function if need be --------------------------*/
+ if(huart->ErrorCode != HAL_UART_ERROR_NONE)
+ {
+ /* UART in mode Receiver -----------------------------------------------*/
+ if(((isrflags & USART_SR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET))
+ {
+ UART_Receive_IT(huart);
+ }
+
+ /* If Overrun error occurs, or if any error occurs in DMA mode reception,
+ consider error as blocking */
+ dmarequest = HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR);
+ if(((huart->ErrorCode & HAL_UART_ERROR_ORE) != RESET) || dmarequest)
+ {
+ /* Blocking error : transfer is aborted
+ Set the UART state ready to be able to start again the process,
+ Disable Rx Interrupts, and disable Rx DMA request, if ongoing */
+ UART_EndRxTransfer(huart);
+
+ /* Disable the UART DMA Rx request if enabled */
+ if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
+ {
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
+
+ /* Abort the UART DMA Rx channel */
+ if(huart->hdmarx != NULL)
+ {
+ /* Set the UART DMA Abort callback :
+ will lead to call HAL_UART_ErrorCallback() at end of DMA abort procedure */
+ huart->hdmarx->XferAbortCallback = UART_DMAAbortOnError;
+ if(HAL_DMA_Abort_IT(huart->hdmarx) != HAL_OK)
+ {
+ /* Call Directly XferAbortCallback function in case of error */
+ huart->hdmarx->XferAbortCallback(huart->hdmarx);
+ }
+ }
+ else
+ {
+ /* Call user error callback */
+ HAL_UART_ErrorCallback(huart);
+ }
+ }
+ else
+ {
+ /* Call user error callback */
+ HAL_UART_ErrorCallback(huart);
+ }
+ }
+ else
+ {
+ /* Non Blocking error : transfer could go on.
+ Error is notified to user through user error callback */
+ HAL_UART_ErrorCallback(huart);
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+ }
+ }
+ return;
+ } /* End if some error occurs */
+
+ /* UART in mode Transmitter ------------------------------------------------*/
+ if(((isrflags & USART_SR_TXE) != RESET) && ((cr1its & USART_CR1_TXEIE) != RESET))
+ {
+ UART_Transmit_IT(huart);
+ return;
+ }
+
+ /* UART in mode Transmitter end --------------------------------------------*/
+ if(((isrflags & USART_SR_TC) != RESET) && ((cr1its & USART_CR1_TCIE) != RESET))
+ {
+ UART_EndTransmit_IT(huart);
+ return;
+ }
+}
+
+/**
+ * @brief Tx Transfer completed callbacks.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval None
+ */
+ __weak void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(huart);
+ /* NOTE: This function Should not be modified, when the callback is needed,
+ the HAL_UART_TxCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Tx Half Transfer completed callbacks.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval None
+ */
+ __weak void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(huart);
+ /* NOTE: This function Should not be modified, when the callback is needed,
+ the HAL_UART_TxHalfCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Rx Transfer completed callbacks.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval None
+ */
+__weak void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(huart);
+ /* NOTE: This function Should not be modified, when the callback is needed,
+ the HAL_UART_RxCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Rx Half Transfer completed callbacks.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval None
+ */
+__weak void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(huart);
+ /* NOTE: This function Should not be modified, when the callback is needed,
+ the HAL_UART_RxHalfCpltCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief UART error callbacks.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval None
+ */
+ __weak void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(huart);
+ /* NOTE: This function Should not be modified, when the callback is needed,
+ the HAL_UART_ErrorCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief UART Abort Complete callback.
+ * @param huart UART handle.
+ * @retval None
+ */
+__weak void HAL_UART_AbortCpltCallback (UART_HandleTypeDef *huart)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(huart);
+
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_UART_AbortCpltCallback can be implemented in the user file.
+ */
+}
+/**
+ * @brief UART Abort Complete callback.
+ * @param huart UART handle.
+ * @retval None
+ */
+__weak void HAL_UART_AbortTransmitCpltCallback (UART_HandleTypeDef *huart)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(huart);
+
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_UART_AbortTransmitCpltCallback can be implemented in the user file.
+ */
+}
+
+/**
+ * @brief UART Abort Receive Complete callback.
+ * @param huart UART handle.
+ * @retval None
+ */
+__weak void HAL_UART_AbortReceiveCpltCallback (UART_HandleTypeDef *huart)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(huart);
+
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_UART_AbortReceiveCpltCallback can be implemented in the user file.
+ */
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup UART_Exported_Functions_Group3 Peripheral Control functions
+ * @brief UART control functions
+ *
+@verbatim
+ ==============================================================================
+ ##### Peripheral Control functions #####
+ ==============================================================================
+ [..]
+ This subsection provides a set of functions allowing to control the UART:
+ (+) HAL_LIN_SendBreak() API can be helpful to transmit the break character.
+ (+) HAL_MultiProcessor_EnterMuteMode() API can be helpful to enter the UART in mute mode.
+ (+) HAL_MultiProcessor_ExitMuteMode() API can be helpful to exit the UART mute mode by software.
+ (+) HAL_HalfDuplex_EnableTransmitter() API to enable the UART transmitter and disables the UART receiver in Half Duplex mode
+ (+) HAL_HalfDuplex_EnableReceiver() API to enable the UART receiver and disables the UART transmitter in Half Duplex mode
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Transmits break characters.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart)
+{
+ /* Check the parameters */
+ assert_param(IS_UART_INSTANCE(huart->Instance));
+
+ /* Process Locked */
+ __HAL_LOCK(huart);
+
+ huart->gState = HAL_UART_STATE_BUSY;
+
+ /* Send break characters */
+ SET_BIT(huart->Instance->CR1, USART_CR1_SBK);
+
+ huart->gState = HAL_UART_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(huart);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Enters the UART in mute mode.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart)
+{
+ /* Check the parameters */
+ assert_param(IS_UART_INSTANCE(huart->Instance));
+
+ /* Process Locked */
+ __HAL_LOCK(huart);
+
+ huart->gState = HAL_UART_STATE_BUSY;
+
+ /* Enable the USART mute mode by setting the RWU bit in the CR1 register */
+ SET_BIT(huart->Instance->CR1, USART_CR1_RWU);
+
+ huart->gState = HAL_UART_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(huart);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Exits the UART mute mode: wake up software.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_MultiProcessor_ExitMuteMode(UART_HandleTypeDef *huart)
+{
+ /* Check the parameters */
+ assert_param(IS_UART_INSTANCE(huart->Instance));
+
+ /* Process Locked */
+ __HAL_LOCK(huart);
+
+ huart->gState = HAL_UART_STATE_BUSY;
+
+ /* Disable the USART mute mode by clearing the RWU bit in the CR1 register */
+ CLEAR_BIT(huart->Instance->CR1, USART_CR1_RWU);
+
+ huart->gState = HAL_UART_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(huart);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Enables the UART transmitter and disables the UART receiver.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart)
+{
+ uint32_t tmpreg = 0x00U;
+
+ /* Process Locked */
+ __HAL_LOCK(huart);
+
+ huart->gState = HAL_UART_STATE_BUSY;
+
+ /*-------------------------- USART CR1 Configuration -----------------------*/
+ tmpreg = huart->Instance->CR1;
+
+ /* Clear TE and RE bits */
+ tmpreg &= (uint32_t)~((uint32_t)(USART_CR1_TE | USART_CR1_RE));
+
+ /* Enable the USART's transmit interface by setting the TE bit in the USART CR1 register */
+ tmpreg |= (uint32_t)USART_CR1_TE;
+
+ /* Write to USART CR1 */
+ WRITE_REG(huart->Instance->CR1, (uint32_t)tmpreg);
+
+ huart->gState = HAL_UART_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(huart);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Enables the UART receiver and disables the UART transmitter.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart)
+{
+ uint32_t tmpreg = 0x00U;
+
+ /* Process Locked */
+ __HAL_LOCK(huart);
+
+ huart->gState = HAL_UART_STATE_BUSY;
+
+ /*-------------------------- USART CR1 Configuration -----------------------*/
+ tmpreg = huart->Instance->CR1;
+
+ /* Clear TE and RE bits */
+ tmpreg &= (uint32_t)~((uint32_t)(USART_CR1_TE | USART_CR1_RE));
+
+ /* Enable the USART's receive interface by setting the RE bit in the USART CR1 register */
+ tmpreg |= (uint32_t)USART_CR1_RE;
+
+ /* Write to USART CR1 */
+ WRITE_REG(huart->Instance->CR1, (uint32_t)tmpreg);
+
+ huart->gState = HAL_UART_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(huart);
+
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup UART_Exported_Functions_Group4 Peripheral State and Errors functions
+ * @brief UART State and Errors functions
+ *
+@verbatim
+ ==============================================================================
+ ##### Peripheral State and Errors functions #####
+ ==============================================================================
+ [..]
+ This subsection provides a set of functions allowing to return the State of
+ UART communication process, return Peripheral Errors occurred during communication
+ process
+ (+) HAL_UART_GetState() API can be helpful to check in run-time the state of the UART peripheral.
+ (+) HAL_UART_GetError() check in run-time errors that could be occurred during communication.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Returns the UART state.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval HAL state
+ */
+HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart)
+{
+ uint32_t temp1= 0x00U, temp2 = 0x00U;
+ temp1 = huart->gState;
+ temp2 = huart->RxState;
+
+ return (HAL_UART_StateTypeDef)(temp1 | temp2);
+}
+
+/**
+ * @brief Return the UART error code
+ * @param huart : pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART.
+ * @retval UART Error Code
+ */
+uint32_t HAL_UART_GetError(UART_HandleTypeDef *huart)
+{
+ return huart->ErrorCode;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @brief DMA UART transmit process complete callback.
+ * @param hdma: DMA handle
+ * @retval None
+ */
+static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma)
+{
+ UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+ /* DMA Normal mode*/
+ if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0U)
+ {
+ huart->TxXferCount = 0U;
+
+ /* Disable the DMA transfer for transmit request by setting the DMAT bit
+ in the UART CR3 register */
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
+
+ /* Enable the UART Transmit Complete Interrupt */
+ SET_BIT(huart->Instance->CR1, USART_CR1_TCIE);
+
+ }
+ /* DMA Circular mode */
+ else
+ {
+ HAL_UART_TxCpltCallback(huart);
+ }
+}
+
+/**
+ * @brief DMA UART transmit process half complete callback
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA module.
+ * @retval None
+ */
+static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
+{
+ UART_HandleTypeDef* huart = (UART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
+
+ HAL_UART_TxHalfCpltCallback(huart);
+}
+
+/**
+ * @brief DMA UART receive process complete callback.
+ * @param hdma: DMA handle
+ * @retval None
+ */
+static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
+{
+ UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+ /* DMA Normal mode*/
+ if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0U)
+ {
+ huart->RxXferCount = 0U;
+
+ /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+ CLEAR_BIT(huart->Instance->CR1, USART_CR1_PEIE);
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+ /* Disable the DMA transfer for the receiver request by setting the DMAR bit
+ in the UART CR3 register */
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
+
+ /* At end of Rx process, restore huart->RxState to Ready */
+ huart->RxState = HAL_UART_STATE_READY;
+ }
+ HAL_UART_RxCpltCallback(huart);
+}
+
+/**
+ * @brief DMA UART receive process half complete callback
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA module.
+ * @retval None
+ */
+static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
+{
+ UART_HandleTypeDef* huart = (UART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
+ HAL_UART_RxHalfCpltCallback(huart);
+}
+
+/**
+ * @brief DMA UART communication error callback.
+ * @param hdma: DMA handle
+ * @retval None
+ */
+static void UART_DMAError(DMA_HandleTypeDef *hdma)
+{
+ uint32_t dmarequest = 0x00U;
+ UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+ /* Stop UART DMA Tx request if ongoing */
+ dmarequest = HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT);
+ if((huart->gState == HAL_UART_STATE_BUSY_TX) && dmarequest)
+ {
+ huart->TxXferCount = 0U;
+ UART_EndTxTransfer(huart);
+ }
+
+ /* Stop UART DMA Rx request if ongoing */
+ dmarequest = HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR);
+ if((huart->RxState == HAL_UART_STATE_BUSY_RX) && dmarequest)
+ {
+ huart->RxXferCount = 0U;
+ UART_EndRxTransfer(huart);
+ }
+
+ huart->ErrorCode |= HAL_UART_ERROR_DMA;
+ HAL_UART_ErrorCallback(huart);
+}
+
+/**
+ * @brief This function handles UART Communication Timeout.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @param Flag: specifies the UART flag to check.
+ * @param Status: The new Flag status (SET or RESET).
+ * @param Tickstart Tick start value
+ * @param Timeout: Timeout duration
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout(UART_HandleTypeDef *huart, uint32_t Flag, FlagStatus Status, uint32_t Tickstart, uint32_t Timeout)
+{
+ /* Wait until flag is set */
+ while((__HAL_UART_GET_FLAG(huart, Flag) ? SET : RESET) == Status)
+ {
+ /* Check for the Timeout */
+ if(Timeout != HAL_MAX_DELAY)
+ {
+ if((Timeout == 0U)||((HAL_GetTick() - Tickstart ) > Timeout))
+ {
+ /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
+ CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE));
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+ huart->gState = HAL_UART_STATE_READY;
+ huart->RxState = HAL_UART_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(huart);
+
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief End ongoing Tx transfer on UART peripheral (following error detection or Transmit completion).
+ * @param huart: UART handle.
+ * @retval None
+ */
+static void UART_EndTxTransfer(UART_HandleTypeDef *huart)
+{
+ /* Disable TXEIE and TCIE interrupts */
+ CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
+
+ /* At end of Tx process, restore huart->gState to Ready */
+ huart->gState = HAL_UART_STATE_READY;
+}
+
+/**
+ * @brief End ongoing Rx transfer on UART peripheral (following error detection or Reception completion).
+ * @param huart: UART handle.
+ * @retval None
+ */
+static void UART_EndRxTransfer(UART_HandleTypeDef *huart)
+{
+ /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+ CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
+ CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+ /* At end of Rx process, restore huart->RxState to Ready */
+ huart->RxState = HAL_UART_STATE_READY;
+}
+
+/**
+ * @brief DMA UART communication abort callback, when initiated by HAL services on Error
+ * (To be called at end of DMA Abort procedure following error occurrence).
+ * @param hdma DMA handle.
+ * @retval None
+ */
+static void UART_DMAAbortOnError(DMA_HandleTypeDef *hdma)
+{
+ UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+ huart->RxXferCount = 0x00U;
+ huart->TxXferCount = 0x00U;
+
+ HAL_UART_ErrorCallback(huart);
+}
+
+/**
+ * @brief DMA UART Tx communication abort callback, when initiated by user
+ * (To be called at end of DMA Tx Abort procedure following user abort request).
+ * @note When this callback is executed, User Abort complete call back is called only if no
+ * Abort still ongoing for Rx DMA Handle.
+ * @param hdma DMA handle.
+ * @retval None
+ */
+static void UART_DMATxAbortCallback(DMA_HandleTypeDef *hdma)
+{
+ UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+ huart->hdmatx->XferAbortCallback = NULL;
+
+ /* Check if an Abort process is still ongoing */
+ if(huart->hdmarx != NULL)
+ {
+ if(huart->hdmarx->XferAbortCallback != NULL)
+ {
+ return;
+ }
+ }
+
+ /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */
+ huart->TxXferCount = 0x00U;
+ huart->RxXferCount = 0x00U;
+
+ /* Reset ErrorCode */
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+
+ /* Restore huart->gState and huart->RxState to Ready */
+ huart->gState = HAL_UART_STATE_READY;
+ huart->RxState = HAL_UART_STATE_READY;
+
+ /* Call user Abort complete callback */
+ HAL_UART_AbortCpltCallback(huart);
+}
+
+/**
+ * @brief DMA UART Rx communication abort callback, when initiated by user
+ * (To be called at end of DMA Rx Abort procedure following user abort request).
+ * @note When this callback is executed, User Abort complete call back is called only if no
+ * Abort still ongoing for Tx DMA Handle.
+ * @param hdma DMA handle.
+ * @retval None
+ */
+static void UART_DMARxAbortCallback(DMA_HandleTypeDef *hdma)
+{
+ UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+ huart->hdmarx->XferAbortCallback = NULL;
+
+ /* Check if an Abort process is still ongoing */
+ if(huart->hdmatx != NULL)
+ {
+ if(huart->hdmatx->XferAbortCallback != NULL)
+ {
+ return;
+ }
+ }
+
+ /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */
+ huart->TxXferCount = 0x00U;
+ huart->RxXferCount = 0x00U;
+
+ /* Reset ErrorCode */
+ huart->ErrorCode = HAL_UART_ERROR_NONE;
+
+ /* Restore huart->gState and huart->RxState to Ready */
+ huart->gState = HAL_UART_STATE_READY;
+ huart->RxState = HAL_UART_STATE_READY;
+
+ /* Call user Abort complete callback */
+ HAL_UART_AbortCpltCallback(huart);
+}
+
+/**
+ * @brief DMA UART Tx communication abort callback, when initiated by user by a call to
+ * HAL_UART_AbortTransmit_IT API (Abort only Tx transfer)
+ * (This callback is executed at end of DMA Tx Abort procedure following user abort request,
+ * and leads to user Tx Abort Complete callback execution).
+ * @param hdma DMA handle.
+ * @retval None
+ */
+static void UART_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma)
+{
+ UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+ huart->TxXferCount = 0x00U;
+
+ /* Restore huart->gState to Ready */
+ huart->gState = HAL_UART_STATE_READY;
+
+ /* Call user Abort complete callback */
+ HAL_UART_AbortTransmitCpltCallback(huart);
+}
+
+/**
+ * @brief DMA UART Rx communication abort callback, when initiated by user by a call to
+ * HAL_UART_AbortReceive_IT API (Abort only Rx transfer)
+ * (This callback is executed at end of DMA Rx Abort procedure following user abort request,
+ * and leads to user Rx Abort Complete callback execution).
+ * @param hdma DMA handle.
+ * @retval None
+ */
+static void UART_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma)
+{
+ UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+ huart->RxXferCount = 0x00U;
+
+ /* Restore huart->RxState to Ready */
+ huart->RxState = HAL_UART_STATE_READY;
+
+ /* Call user Abort complete callback */
+ HAL_UART_AbortReceiveCpltCallback(huart);
+}
+
+/**
+ * @brief Sends an amount of data in non blocking mode.
+ * @param huart: Pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart)
+{
+ uint16_t* tmp;
+
+ /* Check that a Tx process is ongoing */
+ if(huart->gState == HAL_UART_STATE_BUSY_TX)
+ {
+ if(huart->Init.WordLength == UART_WORDLENGTH_9B)
+ {
+ tmp = (uint16_t*) huart->pTxBuffPtr;
+ huart->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF);
+ if(huart->Init.Parity == UART_PARITY_NONE)
+ {
+ huart->pTxBuffPtr += 2U;
+ }
+ else
+ {
+ huart->pTxBuffPtr += 1U;
+ }
+ }
+ else
+ {
+ huart->Instance->DR = (uint8_t)(*huart->pTxBuffPtr++ & (uint8_t)0x00FF);
+ }
+
+ if(--huart->TxXferCount == 0U)
+ {
+ /* Disable the UART Transmit Complete Interrupt */
+ __HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
+
+ /* Enable the UART Transmit Complete Interrupt */
+ __HAL_UART_ENABLE_IT(huart, UART_IT_TC);
+ }
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Wraps up transmission in non blocking mode.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef UART_EndTransmit_IT(UART_HandleTypeDef *huart)
+{
+ /* Disable the UART Transmit Complete Interrupt */
+ __HAL_UART_DISABLE_IT(huart, UART_IT_TC);
+
+ /* Tx process is ended, restore huart->gState to Ready */
+ huart->gState = HAL_UART_STATE_READY;
+ HAL_UART_TxCpltCallback(huart);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Receives an amount of data in non blocking mode
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart)
+{
+ uint16_t* tmp;
+
+ /* Check that a Rx process is ongoing */
+ if(huart->RxState == HAL_UART_STATE_BUSY_RX)
+ {
+ if(huart->Init.WordLength == UART_WORDLENGTH_9B)
+ {
+ tmp = (uint16_t*) huart->pRxBuffPtr;
+ if(huart->Init.Parity == UART_PARITY_NONE)
+ {
+ *tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x01FF);
+ huart->pRxBuffPtr += 2U;
+ }
+ else
+ {
+ *tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x00FF);
+ huart->pRxBuffPtr += 1U;
+ }
+ }
+ else
+ {
+ if(huart->Init.Parity == UART_PARITY_NONE)
+ {
+ *huart->pRxBuffPtr++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x00FF);
+ }
+ else
+ {
+ *huart->pRxBuffPtr++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x007F);
+ }
+ }
+
+ if(--huart->RxXferCount == 0U)
+ {
+ /* Disable the IRDA Data Register not empty Interrupt */
+ __HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
+
+ /* Disable the UART Parity Error Interrupt */
+ __HAL_UART_DISABLE_IT(huart, UART_IT_PE);
+ /* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */
+ __HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
+
+ /* Rx process is completed, restore huart->RxState to Ready */
+ huart->RxState = HAL_UART_STATE_READY;
+
+ HAL_UART_RxCpltCallback(huart);
+
+ return HAL_OK;
+ }
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Configures the UART peripheral.
+ * @param huart: pointer to a UART_HandleTypeDef structure that contains
+ * the configuration information for the specified UART module.
+ * @retval None
+ */
+static void UART_SetConfig(UART_HandleTypeDef *huart)
+{
+ uint32_t tmpreg = 0x00U;
+
+ /* Check the parameters */
+ assert_param(IS_UART_BAUDRATE(huart->Init.BaudRate));
+ assert_param(IS_UART_STOPBITS(huart->Init.StopBits));
+ assert_param(IS_UART_PARITY(huart->Init.Parity));
+ assert_param(IS_UART_MODE(huart->Init.Mode));
+
+ /*------- UART-associated USART registers setting : CR2 Configuration ------*/
+ /* Configure the UART Stop Bits: Set STOP[13:12] bits according
+ * to huart->Init.StopBits value */
+ MODIFY_REG(huart->Instance->CR2, USART_CR2_STOP, huart->Init.StopBits);
+
+ /*------- UART-associated USART registers setting : CR1 Configuration ------*/
+ /* Configure the UART Word Length, Parity and mode:
+ Set the M bits according to huart->Init.WordLength value
+ Set PCE and PS bits according to huart->Init.Parity value
+ Set TE and RE bits according to huart->Init.Mode value
+ Set OVER8 bit according to huart->Init.OverSampling value */
+
+#if defined(USART_CR1_OVER8)
+ tmpreg |= (uint32_t)huart->Init.WordLength | huart->Init.Parity | huart->Init.Mode | huart->Init.OverSampling;
+ MODIFY_REG(huart->Instance->CR1,
+ (uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE | USART_CR1_OVER8),
+ tmpreg);
+#else
+ tmpreg |= (uint32_t)huart->Init.WordLength | huart->Init.Parity | huart->Init.Mode;
+ MODIFY_REG(huart->Instance->CR1,
+ (uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE),
+ tmpreg);
+#endif /* USART_CR1_OVER8 */
+
+ /*------- UART-associated USART registers setting : CR3 Configuration ------*/
+ /* Configure the UART HFC: Set CTSE and RTSE bits according to huart->Init.HwFlowCtl value */
+ MODIFY_REG(huart->Instance->CR3, (USART_CR3_RTSE | USART_CR3_CTSE), huart->Init.HwFlowCtl);
+
+#if defined(USART_CR1_OVER8)
+ /* Check the Over Sampling */
+ if(huart->Init.OverSampling == UART_OVERSAMPLING_8)
+ {
+ /*-------------------------- USART BRR Configuration ---------------------*/
+ if(huart->Instance == USART1)
+ {
+ huart->Instance->BRR = UART_BRR_SAMPLING8(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate);
+ }
+ else
+ {
+ huart->Instance->BRR = UART_BRR_SAMPLING8(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate);
+ }
+ }
+ else
+ {
+ /*-------------------------- USART BRR Configuration ---------------------*/
+ if(huart->Instance == USART1)
+ {
+ huart->Instance->BRR = UART_BRR_SAMPLING16(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate);
+ }
+ else
+ {
+ huart->Instance->BRR = UART_BRR_SAMPLING16(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate);
+ }
+ }
+#else
+ /*-------------------------- USART BRR Configuration ---------------------*/
+ if(huart->Instance == USART1)
+ {
+ huart->Instance->BRR = UART_BRR_SAMPLING16(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate);
+ }
+ else
+ {
+ huart->Instance->BRR = UART_BRR_SAMPLING16(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate);
+ }
+#endif /* USART_CR1_OVER8 */
+}
+
+/**
+ * @}
+ */
+
+#endif /* HAL_UART_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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