Diff: mbed-dev-master/targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_hal_uart.c

Revision:

0:bb348c97df44

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-dev-master/targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_hal_uart.c	Wed Sep 16 01:11:49 2020 +0000
@@ -0,0 +1,2537 @@
+/**
+  ******************************************************************************
+  * @file    stm32f4xx_hal_uart.c
+  * @author  MCD Application Team
+  * @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 these UART pins as alternate function pull-up.
+        (##) 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 stream.
+            (+++) Enable the DMAx interface clock.
+            (+++) Configure the declared DMA handle structure with the required 
+                  Tx/Rx parameters.                
+            (+++) Configure the DMA Tx/Rx Stream.
+            (+++) 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 Stream.
+
+    (#) Program the Baud Rate, Word Length, Stop Bit, Parity, Hardware 
+        flow control and Mode(Receiver/Transmitter) in the 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
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; 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 "stm32f4xx_hal.h"
+
+/** @addtogroup STM32F4xx_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   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 manual (RM0329)).
+
+@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 and USART6 */
+    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));
+  assert_param(IS_UART_OVERSAMPLING(huart->Init.OverSampling));
+  
+  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_INSTANCE(huart->Instance));
+  assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
+  assert_param(IS_UART_OVERSAMPLING(huart->Init.OverSampling));
+
+  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 parameters */
+  assert_param(IS_UART_INSTANCE(huart->Instance));
+  assert_param(IS_UART_LIN_BREAK_DETECT_LENGTH(BreakDetectLength));
+  assert_param(IS_UART_LIN_WORD_LENGTH(huart->Init.WordLength));
+  assert_param(IS_UART_LIN_OVERSAMPLING(huart->Init.OverSampling));
+  
+  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: 
+     - 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_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. */
+  CLEAR_BIT(huart->Instance->CR2, USART_CR2_LBDL);
+  SET_BIT(huart->Instance->CR2, 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 the parameters */
+  assert_param(IS_UART_INSTANCE(huart->Instance));
+  assert_param(IS_UART_WAKEUPMETHOD(WakeUpMethod));
+  assert_param(IS_UART_ADDRESS(Address));
+  assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
+  assert_param(IS_UART_OVERSAMPLING(huart->Init.OverSampling));
+
+  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));
+  
+  /* Clear the USART address */
+  CLEAR_BIT(huart->Instance->CR2, USART_CR2_ADD);
+  /* Set the USART address node */
+  SET_BIT(huart->Instance->CR2, Address);
+  
+  /* Set the wake up method by setting the WAKE bit in the CR1 register */
+  CLEAR_BIT(huart->Instance->CR1, USART_CR1_WAKE);
+  SET_BIT(huart->Instance->CR1, 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 Lock */
+  __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()
+
+    (#) A set of Transfer Complete Callbacks are provided in non blocking mode:
+        (++) HAL_UART_TxCpltCallback()
+        (++) 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 == 0)) 
+    {
+      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  Receives 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 == 0)) 
+    {
+      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 == 0)) 
+    {
+      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 */
+    SET_BIT(huart->Instance->CR1, USART_CR1_TXEIE);
+    
+    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 == 0)) 
+    {
+      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 Error Interrupt: (Frame error, noise error, overrun error) */
+    SET_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+    /* Enable the UART Parity Error and Data Register not empty Interrupts */
+    SET_BIT(huart->Instance->CR1, USART_CR1_PEIE | USART_CR1_RXNEIE);
+    
+    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 == 0))
+    {
+      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 Stream */
+    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 == 0)) 
+    {
+      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 Stream */
+    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_TxCpltCallback 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_TxCpltCallback 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_TxCpltCallback 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.
+    
+@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->CR & DMA_SxCR_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->CR & DMA_SxCR_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 = 0U;
+  huart->TxXferCount = 0U;
+
+  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 */
+      CLEAR_BIT(huart->Instance->CR1, USART_CR1_TXEIE);
+
+      /* Enable the UART Transmit Complete Interrupt */    
+      SET_BIT(huart->Instance->CR1, USART_CR1_TCIE);
+    }
+    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 */    
+  CLEAR_BIT(huart->Instance->CR1, USART_CR1_TCIE);
+  
+  /* 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 UART Parity Error Interrupt and RXNE interrupt*/
+      CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
+
+      /* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */
+      CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+      /* 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));
+
+  /*-------------------------- USART CR2 Configuration -----------------------*/
+  tmpreg = huart->Instance->CR2;
+
+  /* Clear STOP[13:12] bits */
+  tmpreg &= (uint32_t)~((uint32_t)USART_CR2_STOP);
+
+  /* Configure the UART Stop Bits: Set STOP[13:12] bits according to huart->Init.StopBits value */
+  tmpreg |= (uint32_t)huart->Init.StopBits;
+  
+  /* Write to USART CR2 */
+  WRITE_REG(huart->Instance->CR2, (uint32_t)tmpreg);
+
+  /*-------------------------- USART CR1 Configuration -----------------------*/
+  tmpreg = huart->Instance->CR1;
+
+  /* Clear M, PCE, PS, TE and RE bits */
+  tmpreg &= (uint32_t)~((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | \
+                                   USART_CR1_RE | USART_CR1_OVER8));
+
+  /* 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 */
+  tmpreg |= (uint32_t)huart->Init.WordLength | huart->Init.Parity | huart->Init.Mode | huart->Init.OverSampling;
+  
+  /* Write to USART CR1 */
+  WRITE_REG(huart->Instance->CR1, (uint32_t)tmpreg);
+  
+  /*-------------------------- USART CR3 Configuration -----------------------*/  
+  tmpreg = huart->Instance->CR3;
+  
+  /* Clear CTSE and RTSE bits */
+  tmpreg &= (uint32_t)~((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE));
+  
+  /* Configure the UART HFC: Set CTSE and RTSE bits according to huart->Init.HwFlowCtl value */
+  tmpreg |= huart->Init.HwFlowCtl;
+  
+  /* Write to USART CR3 */
+  WRITE_REG(huart->Instance->CR3, (uint32_t)tmpreg);
+  
+  /* Check the Over Sampling */
+  if(huart->Init.OverSampling == UART_OVERSAMPLING_8)
+  {
+    /*-------------------------- USART BRR Configuration ---------------------*/
+#if defined(USART6) 
+    if((huart->Instance == USART1) || (huart->Instance == USART6))
+    {
+      huart->Instance->BRR = UART_BRR_SAMPLING8(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate);
+    }
+#else
+    if(huart->Instance == USART1)
+    {
+      huart->Instance->BRR = UART_BRR_SAMPLING8(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate);
+    }	
+#endif /* USART6 */
+    else
+    {
+      huart->Instance->BRR = UART_BRR_SAMPLING8(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate);
+    }
+  }
+  else
+  {
+    /*-------------------------- USART BRR Configuration ---------------------*/
+#if defined(USART6) 
+    if((huart->Instance == USART1) || (huart->Instance == USART6))
+    {
+      huart->Instance->BRR = UART_BRR_SAMPLING16(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate);
+    }
+#else
+    if(huart->Instance == USART1)
+    {
+      huart->Instance->BRR = UART_BRR_SAMPLING16(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate);
+    }	
+#endif /* USART6 */
+    else
+    {
+      huart->Instance->BRR = UART_BRR_SAMPLING16(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate);
+    }
+  }
+}
+
+/**
+  * @}
+  */
+
+#endif /* HAL_UART_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/