Diff: targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_uart.c

Revision:

144:ef7eb2e8f9f7

Parent:

83:a036322b8637

--- a/targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_uart.c	Tue Aug 02 14:07:36 2016 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_uart.c	Fri Sep 02 15:07:44 2016 +0100
@@ -1,2010 +1,2185 @@
-/**
-  ******************************************************************************
-  * @file    stm32f7xx_hal_uart.c
-  * @author  MCD Application Team
-  * @version V1.0.4
-  * @date    09-December-2015
-  * @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_IT : Clears the specified UART ISR 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) 2015 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 "stm32f7xx_hal.h"
-
-/** @addtogroup STM32F7xx_HAL_Driver
-  * @{
-  */
-
-/** @defgroup UART UART
-  * @brief HAL UART module driver
-  * @{
-  */
-#ifdef HAL_UART_MODULE_ENABLED
-    
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-#define UART_CR1_FIELDS  ((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | \
-                                     USART_CR1_TE | USART_CR1_RE | USART_CR1_OVER8))
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma);
-static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
-static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
-static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
-static void UART_DMAError(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);
-/* Private 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 creates the associated handle .
-  * @param huart: uart handle
-  * @retval HAL status
-  */
-HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart)
-{
-  /* Check the UART handle allocation */
-  if(huart == NULL)
-  {
-    return HAL_ERROR;
-  }
-  
-  if(huart->Init.HwFlowCtl != UART_HWCONTROL_NONE)
-  {
-    /* Check the parameters */
-    assert_param(IS_UART_HWFLOW_INSTANCE(huart->Instance));
-  }
-  else
-  {
-    /* Check the parameters */
-    assert_param(IS_UART_INSTANCE(huart->Instance));
-  }
-  
-  if(huart->State == HAL_UART_STATE_RESET)
-  {
-    /* Allocate lock resource and initialize it */
-    huart->Lock = HAL_UNLOCKED;
-
-    /* Init the low level hardware : GPIO, CLOCK */
-    HAL_UART_MspInit(huart);
-  }
-
-  huart->State = HAL_UART_STATE_BUSY;
-
-  /* Disable the Peripheral */
-  __HAL_UART_DISABLE(huart);
-  
-  /* Set the UART Communication parameters */
-  if (UART_SetConfig(huart) == HAL_ERROR)
-  {
-    return HAL_ERROR;
-  }
-
-  if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
-  {
-    UART_AdvFeatureConfig(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.*/
-  huart->Instance->CR2 &= ~(USART_CR2_LINEN | USART_CR2_CLKEN);
-  huart->Instance->CR3 &= ~(USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN);
-
-  /* Enable the Peripheral */
-  __HAL_UART_ENABLE(huart);
-
-  /* TEACK and/or REACK to check before moving huart->State to Ready */
-  return (UART_CheckIdleState(huart));
-}
-
-/**
-  * @brief Initializes the half-duplex mode according to the specified
-  *         parameters in the UART_InitTypeDef and creates the associated handle .
-  * @param huart: UART handle
-  * @retval HAL status
-  */
-HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart)
-{
-  /* Check the UART handle allocation */
-  if(huart == NULL)
-  {
-    return HAL_ERROR;
-  }
-  
-  if(huart->State == HAL_UART_STATE_RESET)
-  {
-    /* Allocate lock resource and initialize it */
-    huart->Lock = HAL_UNLOCKED;
-    /* Init the low level hardware : GPIO, CLOCK */
-    HAL_UART_MspInit(huart);
-  }
-
-  huart->State = HAL_UART_STATE_BUSY;
-
-  /* Disable the Peripheral */
-  __HAL_UART_DISABLE(huart);
-
-  /* Set the UART Communication parameters */
-  if (UART_SetConfig(huart) == HAL_ERROR)
-  {
-    return HAL_ERROR;
-  }
-
-  if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
-  {
-    UART_AdvFeatureConfig(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.*/
-  huart->Instance->CR2 &= ~(USART_CR2_LINEN | USART_CR2_CLKEN);
-  huart->Instance->CR3 &= ~(USART_CR3_IREN | USART_CR3_SCEN);
-
-  /* Enable the Half-Duplex mode by setting the HDSEL bit in the CR3 register */
-  huart->Instance->CR3 |= USART_CR3_HDSEL;
-
-  /* Enable the Peripheral */
-  __HAL_UART_ENABLE(huart);
-
-  /* TEACK and/or REACK to check before moving huart->State to Ready */
-  return (UART_CheckIdleState(huart));
-}
-
-
-/**
-  * @brief Initializes the LIN mode according to the specified
-  *         parameters in the UART_InitTypeDef and creates the associated handle .
-  * @param huart: uart handle
-  * @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_LIN_WORD_LENGTH(huart->Init.WordLength));
-  	
-  if(huart->State == HAL_UART_STATE_RESET)
-  {  
-    /* Allocate lock resource and initialize it */
-    huart->Lock = HAL_UNLOCKED; 
-    /* Init the low level hardware : GPIO, CLOCK */
-    HAL_UART_MspInit(huart);
-  }
-  
-  huart->State = HAL_UART_STATE_BUSY;
-  
-  /* Disable the Peripheral */
-  __HAL_UART_DISABLE(huart);
-  
-  /* Set the UART Communication parameters */
-  if (UART_SetConfig(huart) == HAL_ERROR)
-  {
-    return HAL_ERROR;
-  } 
-  
-  if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
-  {
-    UART_AdvFeatureConfig(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.*/
-  huart->Instance->CR2 &= ~(USART_CR2_CLKEN);
-  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 */
-  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);
-  
-  /* TEACK and/or REACK to check before moving huart->State to Ready */
-  return (UART_CheckIdleState(huart));
-}
-
-
-
-/**
-  * @brief Initializes the multiprocessor mode according to the specified
-  *         parameters in the UART_InitTypeDef and creates the associated handle.
-  * @param huart: UART handle   
-  * @param Address: UART node address (4-, 6-, 7- or 8-bit long)
-  * @param WakeUpMethod: specifies the UART wakeup method.
-  *        This parameter can be one of the following values:
-  *          @arg UART_WAKEUPMETHOD_IDLELINE: WakeUp by an idle line detection
-  *          @arg UART_WAKEUPMETHOD_ADDRESSMARK: WakeUp by an address mark
-  * @note  If the user resorts to idle line detection wake up, the Address parameter
-  *        is useless and ignored by the initialization function.               
-  * @note  If the user resorts to address mark wake up, the address length detection 
-  *        is configured by default to 4 bits only. For the UART to be able to 
-  *        manage 6-, 7- or 8-bit long addresses detection                    
-  * @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 wake up method parameter */
-  assert_param(IS_UART_WAKEUPMETHOD(WakeUpMethod));
-  
-  if(huart->State == HAL_UART_STATE_RESET)
-  { 
-    /* Allocate lock resource and initialize it */
-    huart->Lock = HAL_UNLOCKED;  
-    /* Init the low level hardware : GPIO, CLOCK */
-    HAL_UART_MspInit(huart);
-  }
-  
-  huart->State = HAL_UART_STATE_BUSY;
-  
-  /* Disable the Peripheral */
-  __HAL_UART_DISABLE(huart);
-  
-  /* Set the UART Communication parameters */
-  if (UART_SetConfig(huart) == HAL_ERROR)
-  {
-    return HAL_ERROR;
-  } 
-  
-  if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
-  {
-    UART_AdvFeatureConfig(huart);
-  }
-  
-  /* In multiprocessor 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. */
-  huart->Instance->CR2 &= ~(USART_CR2_LINEN | USART_CR2_CLKEN);
-  huart->Instance->CR3 &= ~(USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN);
-  
-  if (WakeUpMethod == UART_WAKEUPMETHOD_ADDRESSMARK)
-  {
-    /* If address mark wake up method is chosen, set the USART address node */
-    MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, ((uint32_t)Address << UART_CR2_ADDRESS_LSB_POS));
-  }
-  
-  /* 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); 
-  
-  /* TEACK and/or REACK to check before moving huart->State to Ready */
-  return (UART_CheckIdleState(huart));
-}
-
-
-
-
-/**
-  * @brief DeInitializes the UART peripheral 
-  * @param huart: uart handle
-  * @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->State = HAL_UART_STATE_BUSY;
-  
-  /* Disable the Peripheral */
-  __HAL_UART_DISABLE(huart);
-  
-  huart->Instance->CR1 = 0x0;
-  huart->Instance->CR2 = 0x0;
-  huart->Instance->CR3 = 0x0;
-  
-  /* DeInit the low level hardware */
-  HAL_UART_MspDeInit(huart);
-
-  huart->ErrorCode = HAL_UART_ERROR_NONE;
-  huart->State = HAL_UART_STATE_RESET;
-  
-  /* Process Unlock */
-  __HAL_UNLOCK(huart);
-  
-  return HAL_OK;
-}
-
-/**
-  * @brief UART MSP Init
-  * @param huart: uart handle
-  * @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 can be implemented in the user file
-   */ 
-}
-
-/**
-  * @brief UART MSP DeInit
-  * @param huart: uart handle
-  * @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 can be implemented in the user file
-   */ 
-}
-
-/**
-  * @}
-  */
-
-/** @defgroup UART_Exported_Functions_Group2 IO operation functions 
-  *  @brief UART Transmit/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 mode 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.  
-       (+) No-Blocking mode: The communication is performed using Interrupts 
-           or DMA, These API's 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 API's are :
-        (+) HAL_UART_Transmit()
-        (+) HAL_UART_Receive() 
-        
-    (#) Non-Blocking mode API's with Interrupt are :
-        (+) HAL_UART_Transmit_IT()
-        (+) HAL_UART_Receive_IT()
-        (+) HAL_UART_IRQHandler()
-        (+) UART_Transmit_IT()
-        (+) UART_Receive_IT()
-
-    (#) No-Blocking mode API's 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 No_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 Send an amount of data in blocking mode 
-  * @param huart: uart handle
-  * @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;
-
-  if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_RX))
-  {
-    if((pData == NULL ) || (Size == 0))
-    {
-      return  HAL_ERROR;
-    }
-
-    /* Process Locked */
-    __HAL_LOCK(huart);
-
-    huart->ErrorCode = HAL_UART_ERROR_NONE;
-    /* Check if a non-blocking receive process is ongoing or not */
-    if(huart->State == HAL_UART_STATE_BUSY_RX) 
-    {
-      huart->State = HAL_UART_STATE_BUSY_TX_RX;
-    }
-    else
-    {
-      huart->State = HAL_UART_STATE_BUSY_TX;
-    }
-
-    huart->TxXferSize = Size;
-    huart->TxXferCount = Size;
-    while(huart->TxXferCount > 0)
-    {
-      huart->TxXferCount--;
-        if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, Timeout) != HAL_OK)  
-        { 
-          return HAL_TIMEOUT;
-        }
-      if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
-      {
-        tmp = (uint16_t*) pData;
-        huart->Instance->TDR = (*tmp & (uint16_t)0x01FF);
-        pData += 2;
-      }
-      else
-      {
-        huart->Instance->TDR = (*pData++ & (uint8_t)0xFF);
-      }
-    }
-    if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, Timeout) != HAL_OK)  
-    { 
-      return HAL_TIMEOUT;
-    }
-    /* Check if a non-blocking receive Process is ongoing or not */
-    if(huart->State == HAL_UART_STATE_BUSY_TX_RX) 
-    {
-      huart->State = HAL_UART_STATE_BUSY_RX;
-    }
-    else
-    {
-      huart->State = 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: uart handle
-  * @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;
-  uint16_t uhMask;
-
-  if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_TX))
-  {
-    if((pData == NULL ) || (Size == 0))
-    {
-      return  HAL_ERROR;
-    }
-
-    /* Process Locked */
-    __HAL_LOCK(huart);
-
-    huart->ErrorCode = HAL_UART_ERROR_NONE;
-    /* Check if a non-blocking transmit process is ongoing or not */
-    if(huart->State == HAL_UART_STATE_BUSY_TX)
-    {
-      huart->State = HAL_UART_STATE_BUSY_TX_RX;
-    }
-    else
-    {
-      huart->State = HAL_UART_STATE_BUSY_RX;
-    }
-
-    huart->RxXferSize = Size; 
-    huart->RxXferCount = Size;
-
-    /* Computation of UART mask to apply to RDR register */
-    UART_MASK_COMPUTATION(huart);
-    uhMask = huart->Mask;
-
-    /* as long as data have to be received */
-    while(huart->RxXferCount > 0)
-    {
-      huart->RxXferCount--;
-        if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, Timeout) != HAL_OK)  
-        {
-          return HAL_TIMEOUT;
-        }
-      if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
-      {
-        tmp = (uint16_t*) pData ;
-        *tmp = (uint16_t)(huart->Instance->RDR & uhMask);
-        pData +=2; 
-      }
-      else
-      {
-        *pData++ = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask); 
-      }
-    }
-
-    /* Check if a non-blocking transmit Process is ongoing or not */
-    if(huart->State == HAL_UART_STATE_BUSY_TX_RX) 
-    {
-      huart->State = HAL_UART_STATE_BUSY_TX;
-    }
-    else
-    {
-      huart->State = HAL_UART_STATE_READY;
-    }
-    /* Process Unlocked */
-    __HAL_UNLOCK(huart);
-
-    return HAL_OK;
-  }
-  else
-  {
-    return HAL_BUSY;
-  }
-}
-
-/**
-  * @brief Send an amount of data in interrupt mode 
-  * @param huart: uart handle
-  * @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)
-{  
-  if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_RX))
-  {
-    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;
-    /* Check if a receive process is ongoing or not */
-    if(huart->State == HAL_UART_STATE_BUSY_RX) 
-    {
-      huart->State = HAL_UART_STATE_BUSY_TX_RX;
-    }
-    else
-    {
-      huart->State = HAL_UART_STATE_BUSY_TX;
-    }
-    
-    /* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
-    __HAL_UART_ENABLE_IT(huart, UART_IT_ERR);
-    
-    /* 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 Receive an amount of data in interrupt mode 
-  * @param huart: uart handle
-  * @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)
-{
-  if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_TX))
-  {
-    if((pData == NULL ) || (Size == 0)) 
-    {
-      return HAL_ERROR;
-    }
-
-    /* Process Locked */
-    __HAL_LOCK(huart);
-
-    huart->pRxBuffPtr = pData;
-    huart->RxXferSize = Size;
-    huart->RxXferCount = Size;
-
-    /* Computation of UART mask to apply to RDR register */
-    UART_MASK_COMPUTATION(huart);
-
-    huart->ErrorCode = HAL_UART_ERROR_NONE;
-    /* Check if a transmit process is ongoing or not */
-    if(huart->State == HAL_UART_STATE_BUSY_TX) 
-    {
-      huart->State = HAL_UART_STATE_BUSY_TX_RX;
-    }
-    else
-    {
-      huart->State = HAL_UART_STATE_BUSY_RX;
-    }
-
-    /* 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);
-
-    /* Process Unlocked */
-    __HAL_UNLOCK(huart);
-
-    /* Enable the UART Data Register not empty Interrupt */
-    __HAL_UART_ENABLE_IT(huart, UART_IT_RXNE);
-
-    return HAL_OK;
-  }
-  else
-  {
-    return HAL_BUSY; 
-  }
-}
-
-/**
-  * @brief Send an amount of data in DMA mode 
-  * @param huart: uart handle
-  * @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;
-  
-  if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_RX))
-  {
-    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;
-    /* Check if a receive process is ongoing or not */
-    if(huart->State == HAL_UART_STATE_BUSY_RX) 
-    {
-      huart->State = HAL_UART_STATE_BUSY_TX_RX;
-    }
-    else
-    {
-      huart->State = 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;
-
-    /* Enable the UART transmit DMA channel */
-    tmp = (uint32_t*)&pData;
-    HAL_DMA_Start_IT(huart->hdmatx, *(uint32_t*)tmp, (uint32_t)&huart->Instance->TDR, Size);
-
-    /* Clear the TC flag in the SR register by writing 0 to it */
-    __HAL_UART_CLEAR_IT(huart, UART_FLAG_TC);
-
-    
-    /* Enable the DMA transfer for transmit request by setting the DMAT bit
-       in the UART CR3 register */
-    huart->Instance->CR3 |= USART_CR3_DMAT;
-    
-    /* Process Unlocked */
-    __HAL_UNLOCK(huart);
-    
-    return HAL_OK;
-  }
-  else
-  {
-    return HAL_BUSY;   
-  }
-}
-
-/**
-  * @brief Receive an amount of data in DMA mode 
-  * @param huart: uart handle
-  * @param pData: pointer to data buffer
-  * @param Size: amount of data to be received
-  * @note   When the UART parity is enabled (PCE = 1), the received data contain 
-  *         the parity bit (MSB position)     
-  * @retval HAL status
-  */
-HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
-{
-  uint32_t *tmp;
-  
-  if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_TX))
-  {
-    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;
-    /* Check if a transmit process is ongoing or not */
-    if(huart->State == HAL_UART_STATE_BUSY_TX) 
-    {
-      huart->State = HAL_UART_STATE_BUSY_TX_RX;
-    }
-    else
-    {
-      huart->State = 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;
-
-    /* Enable the DMA channel */
-    tmp = (uint32_t*)&pData;
-    HAL_DMA_Start_IT(huart->hdmarx, (uint32_t)&huart->Instance->RDR, *(uint32_t*)tmp, Size);
-
-    /* Enable the DMA transfer for the receiver request by setting the DMAR bit 
-       in the UART CR3 register */
-     huart->Instance->CR3 |= USART_CR3_DMAR;
-    
-     /* Process Unlocked */
-     __HAL_UNLOCK(huart);
-     
-    return HAL_OK;
-  }
-  else
-  {
-    return HAL_BUSY; 
-  }
-}
-
-/**
-  * @brief Pauses the DMA Transfer.
-  * @param huart: UART handle
-  * @retval None
-  */
-HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart)
-{
-  /* Process Locked */
-  __HAL_LOCK(huart);
-  
-  if(huart->State == HAL_UART_STATE_BUSY_TX)
-  {
-    /* Disable the UART DMA Tx request */
-    huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
-  }
-  else if(huart->State == HAL_UART_STATE_BUSY_RX)
-  {
-    /* Disable the UART DMA Rx request */
-    huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
-  }
-  else if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
-  {
-    /* Disable the UART DMA Tx request */
-    huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
-    /* Disable the UART DMA Rx request */
-    huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
-  }
-  
-  /* Process Unlocked */
-  __HAL_UNLOCK(huart);
-
-  return HAL_OK; 
-}
-
-/**
-  * @brief Resumes the DMA Transfer.
-  * @param huart: UART handle
-  * @retval None
-  */
-HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart)
-{
-  /* Process Locked */
-  __HAL_LOCK(huart);
-
-  if(huart->State == HAL_UART_STATE_BUSY_TX)
-  {
-    /* Enable the UART DMA Tx request */
-    huart->Instance->CR3 |= USART_CR3_DMAT;
-  }
-  else if(huart->State == HAL_UART_STATE_BUSY_RX)
-  {
-		/* Clear the Overrun flag before resuming the Rx transfer*/
-    __HAL_UART_CLEAR_IT(huart, UART_CLEAR_OREF);
-
-    /* Enable the UART DMA Rx request */
-    huart->Instance->CR3 |= USART_CR3_DMAR;
-  }
-  else if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
-  {
-		/* Clear the Overrun flag before resuming the Rx transfer*/
-    __HAL_UART_CLEAR_IT(huart, UART_CLEAR_OREF);
-		
-    /* Enable the UART DMA Rx request  before the DMA Tx request */
-    huart->Instance->CR3 |= USART_CR3_DMAR;
-
-    /* Enable the UART DMA Tx request */
-    huart->Instance->CR3 |= USART_CR3_DMAT;
-  }
-
-  /* If the UART peripheral is still not enabled, enable it */
-  if ((huart->Instance->CR1 & USART_CR1_UE) == 0)
-  {
-    /* Enable UART peripheral */
-    __HAL_UART_ENABLE(huart);
-  }
-
-  return HAL_OK;
-}
-
-/**
-  * @brief Stops the DMA Transfer.
-  * @param huart: UART handle
-  * @retval None
-  */
-HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart)
-{
-  /* 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() /
-     HAL_UART_TxHalfCpltCallback / HAL_UART_RxHalfCpltCallback: 
-     indeed, when HAL_DMA_Abort() API is called, the DMA TX/RX Transfer or Half Transfer complete  
-     interrupt is generated if the DMA transfer interruption occurs at the middle or at the end of 
-     the stream and the corresponding call back is executed. */
-  
-  /* Disable the UART Tx/Rx DMA requests */
-  huart->Instance->CR3 &= ~USART_CR3_DMAT;
-  huart->Instance->CR3 &= ~USART_CR3_DMAR;
-  
-  /* Abort the UART DMA tx channel */
-  if(huart->hdmatx != NULL)
-  {
-    HAL_DMA_Abort(huart->hdmatx);
-  }
-  /* Abort the UART DMA rx channel */
-  if(huart->hdmarx != NULL)
-  {
-    HAL_DMA_Abort(huart->hdmarx);
-  }
-  
-  huart->State = HAL_UART_STATE_READY;
-  
-  return HAL_OK;
-}
-
-/**
-  * @brief This function handles UART interrupt request.
-  * @param huart: uart handle
-  * @retval None
-  */
-void HAL_UART_IRQHandler(UART_HandleTypeDef *huart)
-{
-  /* UART parity error interrupt occurred -------------------------------------*/
-  if((__HAL_UART_GET_IT(huart, UART_IT_PE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_PE) != RESET))
-  { 
-		__HAL_UART_CLEAR_PEFLAG(huart);
-
-    huart->ErrorCode |= HAL_UART_ERROR_PE;
-    /* Set the UART state ready to be able to start again the process */
-    huart->State = HAL_UART_STATE_READY;
-  }
-  
-  /* UART frame error interrupt occurred --------------------------------------*/
-  if((__HAL_UART_GET_IT(huart, UART_IT_FE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR) != RESET))
-  { 
-    __HAL_UART_CLEAR_FEFLAG(huart);
-
-    huart->ErrorCode |= HAL_UART_ERROR_FE;
-    /* Set the UART state ready to be able to start again the process */
-    huart->State = HAL_UART_STATE_READY;
-  }
-  
-  /* UART noise error interrupt occurred --------------------------------------*/
-  if((__HAL_UART_GET_IT(huart, UART_IT_NE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR) != RESET))
-  { 
-    __HAL_UART_CLEAR_NEFLAG(huart);
-
-    huart->ErrorCode |= HAL_UART_ERROR_NE;
-    /* Set the UART state ready to be able to start again the process */
-    huart->State = HAL_UART_STATE_READY;
-  }
-  
-  /* UART Over-Run interrupt occurred -----------------------------------------*/
-  if((__HAL_UART_GET_IT(huart, UART_IT_ORE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR) != RESET))
-  { 
-    __HAL_UART_CLEAR_OREFLAG(huart);
-
-    huart->ErrorCode |= HAL_UART_ERROR_ORE;
-    /* Set the UART state ready to be able to start again the process */
-    huart->State = HAL_UART_STATE_READY;
-  }
-
-   /* Call UART Error Call back function if need be --------------------------*/
-  if(huart->ErrorCode != HAL_UART_ERROR_NONE)
-  {
-    HAL_UART_ErrorCallback(huart);
-  }
-
-  /* UART in mode Receiver ---------------------------------------------------*/
-  if((__HAL_UART_GET_IT(huart, UART_IT_RXNE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_RXNE) != RESET))
-  { 
-    UART_Receive_IT(huart);
-    /* Clear RXNE interrupt flag */
-    __HAL_UART_SEND_REQ(huart, UART_RXDATA_FLUSH_REQUEST);
-  }
-  
-
-  /* UART in mode Transmitter ------------------------------------------------*/
- if((__HAL_UART_GET_IT(huart, UART_IT_TXE) != RESET) &&(__HAL_UART_GET_IT_SOURCE(huart, UART_IT_TXE) != RESET))
-  {
-    UART_Transmit_IT(huart);
-  }
-
-  /* UART in mode Transmitter (transmission end) -----------------------------*/
- if((__HAL_UART_GET_IT(huart, UART_IT_TC) != RESET) &&(__HAL_UART_GET_IT_SOURCE(huart, UART_IT_TC) != RESET))
-  {
-    UART_EndTransmit_IT(huart);
-  }
-  
-}
-
-
-/**
-  * @brief  This function handles UART Communication Timeout.
-  * @param  huart: UART handle
-  * @param  Flag: specifies the UART flag to check.
-  * @param  Status: The new Flag status (SET or RESET).
-  * @param  Timeout: Timeout duration
-  * @retval HAL status
-  */
-HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout(UART_HandleTypeDef *huart, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
-{
-  uint32_t tickstart = HAL_GetTick();
-  
-  /* Wait until flag is set */
-  if(Status == RESET)
-  {    
-    while(__HAL_UART_GET_FLAG(huart, Flag) == RESET)
-    {
-      /* Check for the Timeout */
-      if(Timeout != HAL_MAX_DELAY)
-      {
-        if((Timeout == 0)||((HAL_GetTick()-tickstart) >=  Timeout))
-        {
-          /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
-          __HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
-          __HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
-          __HAL_UART_DISABLE_IT(huart, UART_IT_PE);
-          __HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
-          
-          huart->State= HAL_UART_STATE_READY;
-          
-          /* Process Unlocked */
-          __HAL_UNLOCK(huart);
-          
-          return HAL_TIMEOUT;
-        }
-      }
-    }
-  }
-  else
-  {
-    while(__HAL_UART_GET_FLAG(huart, Flag) != RESET)
-    {
-      /* Check for the Timeout */
-      if(Timeout != HAL_MAX_DELAY)
-      {
-        if((Timeout == 0)||((HAL_GetTick()-tickstart) >=  Timeout))
-        {
-          /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
-          __HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
-          __HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
-          __HAL_UART_DISABLE_IT(huart, UART_IT_PE);
-          __HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
-          
-          huart->State= HAL_UART_STATE_READY;
-          
-          /* Process Unlocked */
-          __HAL_UNLOCK(huart);
-          
-          return HAL_TIMEOUT;
-        }
-      }
-    }
-  }
-  return HAL_OK;      
-}
-
-
-
-/**
-  * @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) == 0)
-  {
-    huart->TxXferCount = 0;
-
-    /* Disable the DMA transfer for transmit request by setting the DMAT bit
-       in the UART CR3 register */
-    huart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAT);
-
-    /* Enable the UART Transmit Complete Interrupt */
-    __HAL_UART_ENABLE_IT(huart, UART_IT_TC);
-  }
-  /* DMA Circular mode */
-  else
-  {
-    HAL_UART_TxCpltCallback(huart);
-  }
-}
-
-/**
-  * @brief DMA UART transmit process half complete callback 
-  * @param hdma : DMA handle
-  * @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) == 0)
-  { 
-    huart->RxXferCount = 0;
-    
-    /* Disable the DMA transfer for the receiver request by setting the DMAR bit 
-    in the UART CR3 register */
-    huart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAR);
-    
-    /* Check if a transmit Process is ongoing or not */
-    if(huart->State == HAL_UART_STATE_BUSY_TX_RX) 
-    {
-      huart->State = HAL_UART_STATE_BUSY_TX;
-    }
-    else
-    {
-      huart->State = HAL_UART_STATE_READY;
-    }
-  }
-  HAL_UART_RxCpltCallback(huart);
-}
-
-/**
-  * @brief DMA UART receive process half complete callback 
-  * @param hdma : DMA handle
-  * @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)   
-{
-  UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
-  huart->RxXferCount = 0;
-  huart->TxXferCount = 0;
-  huart->State= HAL_UART_STATE_READY;
-  huart->ErrorCode |= HAL_UART_ERROR_DMA;
-  HAL_UART_ErrorCallback(huart);
-}
-
-/**
-  * @brief Tx Transfer completed callbacks
-  * @param huart: uart handle
-  * @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 can be implemented in the user file
-   */ 
-}
-
-/**
-  * @brief  Tx Half Transfer completed callbacks.
-  * @param  huart: UART handle
-  * @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 can be implemented in the user file
-   */ 
-}
-
-/**
-  * @brief Rx Transfer completed callbacks
-  * @param huart: uart handle
-  * @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 can be implemented in the user file
-   */
-}
-
-/**
-  * @brief  Rx Half Transfer completed callbacks.
-  * @param  huart: UART handle
-  * @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 can be implemented in the user file
-   */
-}
-
-/**
-  * @brief UART error callbacks
-  * @param huart: uart handle
-  * @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 can be implemented in the user file
-   */ 
-}
-
-/**
-  * @brief Send an amount of data in interrupt mode 
-  *         Function called under interruption only, once
-  *         interruptions have been enabled by HAL_UART_Transmit_IT()
-  * @param  huart: UART handle
-  * @retval HAL status
-  */
-static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart)
-{
-  uint16_t* tmp;
-
-  if ((huart->State == HAL_UART_STATE_BUSY_TX) || (huart->State == HAL_UART_STATE_BUSY_TX_RX))
-  {
-
-    if(huart->TxXferCount == 0)
-    {
-      /* Disable the UART Transmit Data Register Empty Interrupt */
-      __HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
-
-      /* Check if a receive Process is ongoing or not */
-      if(huart->State == HAL_UART_STATE_BUSY_TX_RX) 
-      {
-        huart->State = HAL_UART_STATE_BUSY_RX;
-      }
-      else
-      {      
-        huart->State = HAL_UART_STATE_READY;
-      }
-      
-      /* Wait on TC flag to be able to start a second transfer */
-      if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, HAL_UART_TIMEOUT_VALUE) != HAL_OK)
-      { 
-        return HAL_TIMEOUT;
-      }
-
-      HAL_UART_TxCpltCallback(huart);
-
-      return HAL_OK;
-    }
-    else
-    {
-      if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
-      {
-        tmp = (uint16_t*) huart->pTxBuffPtr;
-        huart->Instance->TDR = (*tmp & (uint16_t)0x01FF);
-        huart->pTxBuffPtr += 2;
-      } 
-      else
-      {
-        huart->Instance->TDR = (uint8_t)(*huart->pTxBuffPtr++ & (uint8_t)0xFF);
-      }
-
-      huart->TxXferCount--;
-      
-      return HAL_OK;
-    }
-  }
-  else
-  {
-    return HAL_BUSY;   
-  }
-}
-
-/**
-  * @brief  Wrap 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);
-
-  /* Check if a receive process is ongoing or not */
-  if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
-  {
-    huart->State = HAL_UART_STATE_BUSY_RX;
-  }
-  else
-  {
-    huart->State = HAL_UART_STATE_READY;
-  }
-
-  HAL_UART_TxCpltCallback(huart);
-
-  return HAL_OK;
-}
-
-/**
-  * @brief Receive an amount of data in interrupt mode 
-  *         Function called under interruption only, once
-  *         interruptions have been enabled by HAL_UART_Receive_IT()
-  * @param  huart: UART handle
-  * @retval HAL status
-  */
-static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart)
-{
-  uint16_t* tmp;
-  uint16_t uhMask = huart->Mask;
-
-  if((huart->State == HAL_UART_STATE_BUSY_RX) || (huart->State == HAL_UART_STATE_BUSY_TX_RX))
-  {
-    
-    if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
-    {
-      tmp = (uint16_t*) huart->pRxBuffPtr ;
-      *tmp = (uint16_t)(huart->Instance->RDR & uhMask);
-      huart->pRxBuffPtr +=2;
-    }
-    else
-    {
-      *huart->pRxBuffPtr++ = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask); 
-    }
-
-    if(--huart->RxXferCount == 0)
-    {
-      __HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
-
-      /* Check if a transmit Process is ongoing or not */
-      if(huart->State == HAL_UART_STATE_BUSY_TX_RX) 
-      {
-        huart->State = HAL_UART_STATE_BUSY_TX;
-      }
-      else
-      {
-        /* 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);
-
-        huart->State = HAL_UART_STATE_READY;
-      }
-      
-      HAL_UART_RxCpltCallback(huart);
-      
-      return HAL_OK;
-    }
-    
-    return HAL_OK;
-  }
-  else
-  {
-    return HAL_BUSY; 
-  }
-}
-
-/**
-  * @}
-  */
-
-/** @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_UART_GetState() API is helpful to check in run-time the state of the UART peripheral. 
-     (+) HAL_MultiProcessor_EnableMuteMode() API enables mute mode
-     (+) HAL_MultiProcessor_DisableMuteMode() API disables mute mode
-     (+) HAL_MultiProcessor_EnterMuteMode() API enters mute mode
-     (+) HAL_MultiProcessor_EnableMuteMode() API enables mute mode
-     (+) UART_SetConfig() API configures the UART peripheral
-     (+) UART_AdvFeatureConfig() API optionally configures the UART advanced features        
-     (+) UART_CheckIdleState() API ensures that TEACK and/or REACK are set after initialization 
-     (+) HAL_HalfDuplex_EnableTransmitter() API disables receiver and enables transmitter  
-     (+) HAL_HalfDuplex_EnableReceiver() API disables transmitter and enables receiver  
-     (+) HAL_LIN_SendBreak() API transmits the break characters           
-@endverbatim
-  * @{
-  */
-
-/**
-  * @brief Enable UART in mute mode (doesn't mean UART enters mute mode;
-  * to enter mute mode, HAL_MultiProcessor_EnterMuteMode() API must be called)
-  * @param huart: UART handle
-  * @retval HAL status
-  */
-HAL_StatusTypeDef HAL_MultiProcessor_EnableMuteMode(UART_HandleTypeDef *huart)
-{  
-  /* Process Locked */
-  __HAL_LOCK(huart);
-  
-  huart->State = HAL_UART_STATE_BUSY;
-  
-  /* Enable USART mute mode by setting the MME bit in the CR1 register */
-  huart->Instance->CR1 |= USART_CR1_MME;
-  
-  huart->State = HAL_UART_STATE_READY;
-  
-  return (UART_CheckIdleState(huart));
-}
-
-/**
-  * @brief Disable UART mute mode (doesn't mean it actually wakes up the software,
-  * as it may not have been in mute mode at this very moment).
-  * @param huart: uart handle
-  * @retval HAL status
-  */
-HAL_StatusTypeDef HAL_MultiProcessor_DisableMuteMode(UART_HandleTypeDef *huart)
-{ 
-  /* Process Locked */
-  __HAL_LOCK(huart);
-  
-  huart->State = HAL_UART_STATE_BUSY;
-  
-   /* Disable USART mute mode by clearing the MME bit in the CR1 register */
-  huart->Instance->CR1 &= ~(USART_CR1_MME);
-  
-  huart->State = HAL_UART_STATE_READY;
-  
-  return (UART_CheckIdleState(huart));
-}
-
-/**
-  * @brief Enter UART mute mode (means UART actually enters mute mode).
-  * To exit from mute mode, HAL_MultiProcessor_DisableMuteMode() API must be called. 
-  * @param huart: uart handle
-  * @retval HAL status
-  */
-void HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart)
-{    
-  __HAL_UART_SEND_REQ(huart, UART_MUTE_MODE_REQUEST);
-}
-
-
-
-/**
-  * @brief return the UART state
-  * @param huart: uart handle
-  * @retval HAL state
-  */
-HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart)
-{
-  return huart->State;
-}
-
-/**
-* @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 Configure the UART peripheral 
-  * @param huart: uart handle
-  * @retval None
-  */
-HAL_StatusTypeDef UART_SetConfig(UART_HandleTypeDef *huart)
-{
-  uint32_t tmpreg                     = 0x00000000;
-  UART_ClockSourceTypeDef clocksource = UART_CLOCKSOURCE_UNDEFINED;
-  uint16_t brrtemp                    = 0x0000;
-  uint16_t usartdiv                   = 0x0000;
-  HAL_StatusTypeDef ret               = HAL_OK;  
-  
-  /* Check the parameters */ 
-  assert_param(IS_UART_BAUDRATE(huart->Init.BaudRate));  
-  assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
-  assert_param(IS_UART_STOPBITS(huart->Init.StopBits));
-  assert_param(IS_UART_PARITY(huart->Init.Parity));
-  assert_param(IS_UART_MODE(huart->Init.Mode));
-  assert_param(IS_UART_HARDWARE_FLOW_CONTROL(huart->Init.HwFlowCtl));
-  assert_param(IS_UART_ONE_BIT_SAMPLE(huart->Init.OneBitSampling)); 
-
-
-  /*-------------------------- USART CR1 Configuration -----------------------*/
-  /* Clear M, PCE, PS, TE, RE and OVER8 bits and configure       
-   *  the UART Word Length, Parity, Mode and oversampling: 
-   *  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 ;
-  MODIFY_REG(huart->Instance->CR1, UART_CR1_FIELDS, tmpreg);
-
-  /*-------------------------- USART 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);
-  
-  /*-------------------------- USART CR3 Configuration -----------------------*/
-  /* Configure 
-   * - UART HardWare Flow Control: set CTSE and RTSE bits according 
-   *   to huart->Init.HwFlowCtl value 
-   * - one-bit sampling method versus three samples' majority rule according
-   *   to huart->Init.OneBitSampling */
-  tmpreg = (uint32_t)huart->Init.HwFlowCtl | huart->Init.OneBitSampling ;
-  MODIFY_REG(huart->Instance->CR3, (USART_CR3_RTSE | USART_CR3_CTSE | USART_CR3_ONEBIT), tmpreg);
-  
-  /*-------------------------- USART BRR Configuration -----------------------*/
-  UART_GETCLOCKSOURCE(huart, clocksource);
-
-  /* Check UART Over Sampling to set Baud Rate Register */
-  if (huart->Init.OverSampling == UART_OVERSAMPLING_8)
-  { 
-    switch (clocksource)
-    {
-    case UART_CLOCKSOURCE_PCLK1:
-        usartdiv = (uint16_t)(UART_DIV_SAMPLING8(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
-      break;
-    case UART_CLOCKSOURCE_PCLK2:
-        usartdiv = (uint16_t)(UART_DIV_SAMPLING8(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate));
-      break;
-    case UART_CLOCKSOURCE_HSI:
-        usartdiv = (uint16_t)(UART_DIV_SAMPLING8(HSI_VALUE, huart->Init.BaudRate)); 
-      break;
-    case UART_CLOCKSOURCE_SYSCLK:
-        usartdiv = (uint16_t)(UART_DIV_SAMPLING8(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
-      break;
-    case UART_CLOCKSOURCE_LSE:
-        usartdiv = (uint16_t)(UART_DIV_SAMPLING8(LSE_VALUE, huart->Init.BaudRate)); 
-      break;
-      case UART_CLOCKSOURCE_UNDEFINED:                
-    default:
-        ret = HAL_ERROR; 
-      break;
-    }
-    
-    brrtemp = usartdiv & 0xFFF0;
-    brrtemp |= (uint16_t)((usartdiv & (uint16_t)0x000F) >> 1U);
-    huart->Instance->BRR = brrtemp;
-  }
-  else
-  {
-    switch (clocksource)
-    {
-    case UART_CLOCKSOURCE_PCLK1: 
-        huart->Instance->BRR = (uint16_t)(UART_DIV_SAMPLING16(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
-      break;
-    case UART_CLOCKSOURCE_PCLK2: 
-        huart->Instance->BRR = (uint16_t)(UART_DIV_SAMPLING16(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate));
-      break;
-    case UART_CLOCKSOURCE_HSI: 
-        huart->Instance->BRR = (uint16_t)(UART_DIV_SAMPLING16(HSI_VALUE, huart->Init.BaudRate)); 
-      break; 
-    case UART_CLOCKSOURCE_SYSCLK:  
-        huart->Instance->BRR = (uint16_t)(UART_DIV_SAMPLING16(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
-      break;  
-    case UART_CLOCKSOURCE_LSE:
-        huart->Instance->BRR = (uint16_t)(UART_DIV_SAMPLING16(LSE_VALUE, huart->Init.BaudRate)); 
-      break;
-      case UART_CLOCKSOURCE_UNDEFINED:                
-    default:
-        ret = HAL_ERROR; 
-      break;
-    }
-  }
-
-  return ret;   
-
-}
-
-
-/**
-  * @brief Configure the UART peripheral advanced features 
-  * @param huart: uart handle  
-  * @retval None
-  */
-void UART_AdvFeatureConfig(UART_HandleTypeDef *huart)
-{
-  /* Check whether the set of advanced features to configure is properly set */ 
-  assert_param(IS_UART_ADVFEATURE_INIT(huart->AdvancedInit.AdvFeatureInit));
-  
-  /* if required, configure TX pin active level inversion */
-  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_TXINVERT_INIT))
-  {
-    assert_param(IS_UART_ADVFEATURE_TXINV(huart->AdvancedInit.TxPinLevelInvert));
-    MODIFY_REG(huart->Instance->CR2, USART_CR2_TXINV, huart->AdvancedInit.TxPinLevelInvert);
-  }
-  
-  /* if required, configure RX pin active level inversion */
-  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXINVERT_INIT))
-  {
-    assert_param(IS_UART_ADVFEATURE_RXINV(huart->AdvancedInit.RxPinLevelInvert));
-    MODIFY_REG(huart->Instance->CR2, USART_CR2_RXINV, huart->AdvancedInit.RxPinLevelInvert);
-  }
-  
-  /* if required, configure data inversion */
-  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DATAINVERT_INIT))
-  {
-    assert_param(IS_UART_ADVFEATURE_DATAINV(huart->AdvancedInit.DataInvert));
-    MODIFY_REG(huart->Instance->CR2, USART_CR2_DATAINV, huart->AdvancedInit.DataInvert);
-  }
-  
-  /* if required, configure RX/TX pins swap */
-  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_SWAP_INIT))
-  {
-    assert_param(IS_UART_ADVFEATURE_SWAP(huart->AdvancedInit.Swap));
-    MODIFY_REG(huart->Instance->CR2, USART_CR2_SWAP, huart->AdvancedInit.Swap);
-  }
-  
-  /* if required, configure RX overrun detection disabling */
-  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXOVERRUNDISABLE_INIT))
-  {
-    assert_param(IS_UART_OVERRUN(huart->AdvancedInit.OverrunDisable));  
-    MODIFY_REG(huart->Instance->CR3, USART_CR3_OVRDIS, huart->AdvancedInit.OverrunDisable);
-  }
-  
-  /* if required, configure DMA disabling on reception error */
-  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DMADISABLEONERROR_INIT))
-  {
-    assert_param(IS_UART_ADVFEATURE_DMAONRXERROR(huart->AdvancedInit.DMADisableonRxError));   
-    MODIFY_REG(huart->Instance->CR3, USART_CR3_DDRE, huart->AdvancedInit.DMADisableonRxError);
-  }
-  
-  /* if required, configure auto Baud rate detection scheme */              
-  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_AUTOBAUDRATE_INIT))
-  {
-    assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATE(huart->AdvancedInit.AutoBaudRateEnable));
-    MODIFY_REG(huart->Instance->CR2, USART_CR2_ABREN, huart->AdvancedInit.AutoBaudRateEnable);
-    /* set auto Baudrate detection parameters if detection is enabled */
-    if(huart->AdvancedInit.AutoBaudRateEnable == UART_ADVFEATURE_AUTOBAUDRATE_ENABLE)
-    {
-      assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATEMODE(huart->AdvancedInit.AutoBaudRateMode));
-      MODIFY_REG(huart->Instance->CR2, USART_CR2_ABRMODE, huart->AdvancedInit.AutoBaudRateMode);
-    }
-  }
-  
-  /* if required, configure MSB first on communication line */  
-  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_MSBFIRST_INIT))
-  {
-    assert_param(IS_UART_ADVFEATURE_MSBFIRST(huart->AdvancedInit.MSBFirst));   
-    MODIFY_REG(huart->Instance->CR2, USART_CR2_MSBFIRST, huart->AdvancedInit.MSBFirst);
-  }
-}
-
-
-
-/**
-  * @brief Check the UART Idle State
-  * @param huart: uart handle
-  * @retval HAL status
-  */
-HAL_StatusTypeDef UART_CheckIdleState(UART_HandleTypeDef *huart)
-{
-  /* Initialize the UART ErrorCode */
-  huart->ErrorCode = HAL_UART_ERROR_NONE;
-  
-  /* Check if the Transmitter is enabled */
-  if((huart->Instance->CR1 & USART_CR1_TE) == USART_CR1_TE)
-  {
-    /* Wait until TEACK flag is set */
-    if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_TEACK, RESET, HAL_UART_TIMEOUT_VALUE) != HAL_OK)  
-    {
-      /* Timeout Occurred */
-      return HAL_TIMEOUT;
-    }
-  }
-  /* Check if the Receiver is enabled */
-  if((huart->Instance->CR1 & USART_CR1_RE) == USART_CR1_RE)
-  {
-    /* Wait until REACK flag is set */
-    if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_REACK, RESET,  HAL_UART_TIMEOUT_VALUE) != HAL_OK)  
-    { 
-      /* Timeout Occurred */
-      return HAL_TIMEOUT;
-    }
-  }
-  
-  /* Initialize the UART State */
-  huart->State= HAL_UART_STATE_READY;
-    
-  /* Process Unlocked */
-  __HAL_UNLOCK(huart);
-  
-  return HAL_OK;
-}
-
-/**
-  * @brief  Enables the UART transmitter and disables the UART receiver.
-  * @param  huart: UART handle
-  * @retval HAL status
-  * @retval None
-  */
-HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart)
-{
-  /* Process Locked */
-  __HAL_LOCK(huart);
-  huart->State = HAL_UART_STATE_BUSY;
-  
-  /* Clear TE and RE bits */
-  CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE | USART_CR1_RE));
-  /* Enable the USART's transmit interface by setting the TE bit in the USART CR1 register */
-  SET_BIT(huart->Instance->CR1, USART_CR1_TE);
- 
-  huart->State= HAL_UART_STATE_READY;
-  /* Process Unlocked */
-  __HAL_UNLOCK(huart);
-  
-  return HAL_OK;
-}
-
-/**
-  * @brief  Enables the UART receiver and disables the UART transmitter.
-  * @param  huart: UART handle
-  * @retval HAL status
-  */
-HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart)
-{
-  /* Process Locked */
-  __HAL_LOCK(huart);
-  huart->State = HAL_UART_STATE_BUSY;
-
-  /* Clear TE and RE bits */
-  CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE | USART_CR1_RE));
-  /* Enable the USART's receive interface by setting the RE bit in the USART CR1 register */
-  SET_BIT(huart->Instance->CR1, USART_CR1_RE);
-
-  huart->State = HAL_UART_STATE_READY;
-  /* Process Unlocked */
-  __HAL_UNLOCK(huart);
-
-  return HAL_OK;
-}
-
-
-/**
-  * @brief  Transmits break characters.
-  * @param  huart: UART handle
-  * @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->State = HAL_UART_STATE_BUSY;
-  
-  /* Send break characters */
-  huart->Instance->RQR |= UART_SENDBREAK_REQUEST;  
- 
-  huart->State = HAL_UART_STATE_READY;
-  
-  /* Process Unlocked */
-  __HAL_UNLOCK(huart);
-  
-  return HAL_OK; 
-}
-
-
-/**
-  * @}
-  */
-
-/**
-  * @}
-  */
-
-#endif /* HAL_UART_MODULE_ENABLED */
-/**
-  * @}
-  */
-
-/**
-  * @}
-  */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+/**
+  ******************************************************************************
+  * @file    stm32f7xx_hal_uart.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    22-April-2016
+  * @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_IT : Clears the specified UART ISR 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) 2016 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 "stm32f7xx_hal.h"
+
+/** @addtogroup STM32F7xx_HAL_Driver
+  * @{
+  */
+
+/** @defgroup UART UART
+  * @brief HAL UART module driver
+  * @{
+  */
+
+#ifdef HAL_UART_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @defgroup UART_Private_Constants UART Private Constants
+  * @{
+  */
+#define UART_CR1_FIELDS  ((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | \
+                                     USART_CR1_TE | USART_CR1_RE | USART_CR1_OVER8))
+/**
+  * @}
+  */
+/* 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_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
+static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
+static void UART_DMAError(DMA_HandleTypeDef *hdma);
+static void UART_DMAAbortOnError(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);
+/**
+  * @}
+  */
+
+/* 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 creates the associated handle .
+  * @param huart: uart handle
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart)
+{
+  /* Check the UART handle allocation */
+  if(huart == NULL)
+  {
+    return HAL_ERROR;
+  }
+
+  if(huart->Init.HwFlowCtl != UART_HWCONTROL_NONE)
+  {
+    /* Check the parameters */
+    assert_param(IS_UART_HWFLOW_INSTANCE(huart->Instance));
+  }
+  else
+  {
+    /* Check the parameters */
+    assert_param(IS_UART_INSTANCE(huart->Instance));
+  }
+
+  if(huart->gState == HAL_UART_STATE_RESET)
+  {
+    /* Allocate lock resource and initialize it */
+    huart->Lock = HAL_UNLOCKED;
+
+    /* Init the low level hardware : GPIO, CLOCK */
+    HAL_UART_MspInit(huart);
+  }
+
+  huart->gState = HAL_UART_STATE_BUSY;
+
+  /* Disable the Peripheral */
+  __HAL_UART_DISABLE(huart);
+
+  /* Set the UART Communication parameters */
+  if (UART_SetConfig(huart) == HAL_ERROR)
+  {
+    return HAL_ERROR;
+  }
+
+  if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
+  {
+    UART_AdvFeatureConfig(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);
+
+  /* TEACK and/or REACK to check before moving huart->gState and huart->RxState to Ready */
+  return (UART_CheckIdleState(huart));
+}
+
+/**
+  * @brief Initializes the half-duplex mode according to the specified
+  *         parameters in the UART_InitTypeDef and creates the associated handle .
+  * @param huart: UART handle
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart)
+{
+  /* Check the UART handle allocation */
+  if(huart == NULL)
+  {
+    return HAL_ERROR;
+  }
+
+  if(huart->gState == HAL_UART_STATE_RESET)
+  {
+    /* Allocate lock resource and initialize it */
+    huart->Lock = HAL_UNLOCKED;
+
+    /* Init the low level hardware : GPIO, CLOCK */
+    HAL_UART_MspInit(huart);
+  }
+
+  huart->gState = HAL_UART_STATE_BUSY;
+
+  /* Disable the Peripheral */
+  __HAL_UART_DISABLE(huart);
+
+  /* Set the UART Communication parameters */
+  if (UART_SetConfig(huart) == HAL_ERROR)
+  {
+    return HAL_ERROR;
+  }
+
+  if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
+  {
+    UART_AdvFeatureConfig(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);
+
+  /* TEACK and/or REACK to check before moving huart->gState and huart->RxState to Ready */
+  return (UART_CheckIdleState(huart));
+}
+
+
+/**
+  * @brief Initialize the LIN mode according to the specified
+  *        parameters in the UART_InitTypeDef and creates the associated handle .
+  * @param huart: UART handle.
+  * @param BreakDetectLength: specifies the LIN break detection length.
+  *        This parameter can be one of the following values:
+  *          @arg @ref UART_LINBREAKDETECTLENGTH_10B 10-bit break detection
+  *          @arg @ref 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_LIN_WORD_LENGTH(huart->Init.WordLength));
+
+  if(huart->gState == HAL_UART_STATE_RESET)
+  {
+    /* Allocate lock resource and initialize it */
+    huart->Lock = HAL_UNLOCKED;
+
+    /* Init the low level hardware : GPIO, CLOCK */
+    HAL_UART_MspInit(huart);
+  }
+
+  huart->gState = HAL_UART_STATE_BUSY;
+
+  /* Disable the Peripheral */
+  __HAL_UART_DISABLE(huart);
+
+  /* Set the UART Communication parameters */
+  if (UART_SetConfig(huart) == HAL_ERROR)
+  {
+    return HAL_ERROR;
+  }
+
+  if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
+  {
+    UART_AdvFeatureConfig(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. */
+  MODIFY_REG(huart->Instance->CR2, USART_CR2_LBDL, BreakDetectLength);
+
+  /* Enable the Peripheral */
+  __HAL_UART_ENABLE(huart);
+
+  /* TEACK and/or REACK to check before moving huart->gState and huart->RxState to Ready */
+  return (UART_CheckIdleState(huart));
+}
+
+
+/**
+  * @brief Initialize the multiprocessor mode according to the specified
+  *        parameters in the UART_InitTypeDef and initialize the associated handle.
+  * @param huart: UART handle.
+  * @param Address: UART node address (4-, 6-, 7- or 8-bit long).
+  * @param WakeUpMethod: specifies the UART wakeup method.
+  *        This parameter can be one of the following values:
+  *          @arg @ref UART_WAKEUPMETHOD_IDLELINE WakeUp by an idle line detection
+  *          @arg @ref UART_WAKEUPMETHOD_ADDRESSMARK WakeUp by an address mark
+  * @note  If the user resorts to idle line detection wake up, the Address parameter
+  *        is useless and ignored by the initialization function.
+  * @note  If the user resorts to address mark wake up, the address length detection
+  *        is configured by default to 4 bits only. For the UART to be able to
+  *        manage 6-, 7- or 8-bit long addresses detection
+  * @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 wake up method parameter */
+  assert_param(IS_UART_WAKEUPMETHOD(WakeUpMethod));
+
+  if(huart->gState == HAL_UART_STATE_RESET)
+  {
+    /* Allocate lock resource and initialize it */
+    huart->Lock = HAL_UNLOCKED;
+
+    /* Init the low level hardware : GPIO, CLOCK */
+    HAL_UART_MspInit(huart);
+  }
+
+  huart->gState = HAL_UART_STATE_BUSY;
+
+  /* Disable the Peripheral */
+  __HAL_UART_DISABLE(huart);
+
+  /* Set the UART Communication parameters */
+  if (UART_SetConfig(huart) == HAL_ERROR)
+  {
+    return HAL_ERROR;
+  }
+
+  if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
+  {
+    UART_AdvFeatureConfig(huart);
+  }
+
+  /* In multiprocessor 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));
+
+  if (WakeUpMethod == UART_WAKEUPMETHOD_ADDRESSMARK)
+  {
+    /* If address mark wake up method is chosen, set the USART address node */
+    MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, ((uint32_t)Address << UART_CR2_ADDRESS_LSB_POS));
+  }
+
+  /* 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);
+
+  /* TEACK and/or REACK to check before moving huart->gState and huart->RxState to Ready */
+  return (UART_CheckIdleState(huart));
+}
+
+
+/**
+  * @brief Initialize the RS485 Driver enable feature according to the specified
+  *         parameters in the UART_InitTypeDef and creates the associated handle.
+  * @param huart: UART handle.
+  * @param Polarity: select the driver enable polarity.
+  *        This parameter can be one of the following values:
+  *          @arg @ref UART_DE_POLARITY_HIGH DE signal is active high
+  *          @arg @ref UART_DE_POLARITY_LOW  DE signal is active low
+  * @param AssertionTime: Driver Enable assertion time:
+  *                         5-bit value defining the time between the activation of the DE (Driver Enable)
+  *                         signal and the beginning of the start bit. It is expressed in sample time
+  *                         units (1/8 or 1/16 bit time, depending on the oversampling rate)
+  * @param DeassertionTime: Driver Enable deassertion time:
+  *                         5-bit value defining the time between the end of the last stop bit, in a
+  *                         transmitted message, and the de-activation of the DE (Driver Enable) signal.
+  *                         It is expressed in sample time units (1/8 or 1/16 bit time, depending on the
+  *                         oversampling rate).
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_RS485Ex_Init(UART_HandleTypeDef *huart, uint32_t Polarity, uint32_t AssertionTime, uint32_t DeassertionTime)
+{
+  uint32_t temp = 0x0;
+
+  /* Check the UART handle allocation */
+  if(huart == NULL)
+  {
+    return HAL_ERROR;
+  }
+  /* Check the Driver Enable UART instance */
+  assert_param(IS_UART_DRIVER_ENABLE_INSTANCE(huart->Instance));
+
+  /* Check the Driver Enable polarity */
+  assert_param(IS_UART_DE_POLARITY(Polarity));
+
+  /* Check the Driver Enable assertion time */
+  assert_param(IS_UART_ASSERTIONTIME(AssertionTime));
+
+  /* Check the Driver Enable deassertion time */
+  assert_param(IS_UART_DEASSERTIONTIME(DeassertionTime));
+
+  if(huart->gState == HAL_UART_STATE_RESET)
+  {
+    /* Allocate lock resource and initialize it */
+    huart->Lock = HAL_UNLOCKED;
+
+    /* Init the low level hardware : GPIO, CLOCK, CORTEX */
+    HAL_UART_MspInit(huart);
+  }
+
+  huart->gState = HAL_UART_STATE_BUSY;
+
+  /* Disable the Peripheral */
+  __HAL_UART_DISABLE(huart);
+
+  /* Set the UART Communication parameters */
+  if (UART_SetConfig(huart) == HAL_ERROR)
+  {
+    return HAL_ERROR;
+  }
+
+  if(huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
+  {
+    UART_AdvFeatureConfig(huart);
+  }
+
+  /* Enable the Driver Enable mode by setting the DEM bit in the CR3 register */
+  SET_BIT(huart->Instance->CR3, USART_CR3_DEM);
+
+  /* Set the Driver Enable polarity */
+  MODIFY_REG(huart->Instance->CR3, USART_CR3_DEP, Polarity);
+
+  /* Set the Driver Enable assertion and deassertion times */
+  temp = (AssertionTime << UART_CR1_DEAT_ADDRESS_LSB_POS);
+  temp |= (DeassertionTime << UART_CR1_DEDT_ADDRESS_LSB_POS);
+  MODIFY_REG(huart->Instance->CR1, (USART_CR1_DEDT|USART_CR1_DEAT), temp);
+
+  /* Enable the Peripheral */
+  __HAL_UART_ENABLE(huart);
+
+  /* TEACK and/or REACK to check before moving huart->gState and huart->RxState to Ready */
+  return (UART_CheckIdleState(huart));
+}
+
+/**
+  * @brief DeInitializes the UART peripheral
+  * @param huart: uart handle
+  * @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;
+
+  /* Disable the Peripheral */
+  __HAL_UART_DISABLE(huart);
+
+  huart->Instance->CR1 = 0x0U;
+  huart->Instance->CR2 = 0x0U;
+  huart->Instance->CR3 = 0x0U;
+
+  /* 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: uart handle
+  * @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 can be implemented in the user file
+   */
+}
+
+/**
+  * @brief UART MSP DeInit
+  * @param huart: uart handle
+  * @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 can be implemented in the user file
+   */
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup UART_Exported_Functions_Group2 IO operation functions
+  * @brief UART Transmit/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 mode 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 API's 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 API's are :
+        (+) HAL_UART_Transmit()
+        (+) HAL_UART_Receive()
+
+    (#) Non-Blocking mode API's with Interrupt are :
+        (+) HAL_UART_Transmit_IT()
+        (+) HAL_UART_Receive_IT()
+        (+) HAL_UART_IRQHandler()
+        (+) UART_Transmit_IT()
+        (+) UART_Receive_IT()
+
+    (#) Non-Blocking mode API's 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 Send an amount of data in blocking mode.
+  * @param huart: UART handle.
+  * @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(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK)
+      {
+        return HAL_TIMEOUT;
+      }
+      if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
+      {
+        tmp = (uint16_t*) pData;
+        huart->Instance->TDR = (*tmp & (uint16_t)0x01FFU);
+        pData += 2;
+      }
+      else
+      {
+        huart->Instance->TDR = (*pData++ & (uint8_t)0xFFU);
+      }
+    }
+    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: UART handle.
+  * @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;
+  uint16_t uhMask;
+  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;
+
+    /* Computation of UART mask to apply to RDR register */
+    UART_MASK_COMPUTATION(huart);
+    uhMask = huart->Mask;
+
+    /* as long as data have to be received */
+    while(huart->RxXferCount > 0U)
+    {
+      huart->RxXferCount--;
+      if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK)
+      {
+        return HAL_TIMEOUT;
+      }
+      if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
+      {
+        tmp = (uint16_t*) pData ;
+        *tmp = (uint16_t)(huart->Instance->RDR & uhMask);
+        pData +=2U;
+      }
+      else
+      {
+        *pData++ = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask);
+      }
+    }
+
+    /* 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 Send an amount of data in interrupt mode.
+  * @param huart: UART handle.
+  * @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 */
+    SET_BIT(huart->Instance->CR1, USART_CR1_TXEIE);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief Receive an amount of data in interrupt mode.
+  * @param huart: UART handle.
+  * @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;
+
+    /* Computation of UART mask to apply to RDR register */
+    UART_MASK_COMPUTATION(huart);
+
+    huart->ErrorCode = HAL_UART_ERROR_NONE;
+    huart->RxState = HAL_UART_STATE_BUSY_RX;
+
+    /* 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 UART Data Register not empty Interrupt */
+    SET_BIT(huart->Instance->CR1, USART_CR1_RXNEIE);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief Send an amount of data in DMA mode.
+  * @param huart: UART handle.
+  * @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->TDR, Size);
+
+    /* Clear the TC flag in the SR register by writing 0 to it */
+    __HAL_UART_CLEAR_IT(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 Receive an amount of data in DMA mode.
+  * @param huart: UART handle.
+  * @param pData: pointer to data buffer.
+  * @param Size: amount of data to be received.
+  * @note   When the UART parity is enabled (PCE = 1), the received data contain
+  *         the parity bit (MSB position).
+  * @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->RDR, *(uint32_t*)tmp, Size);
+
+    /* 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 Pause the DMA Transfer.
+  * @param huart: UART handle.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart)
+{
+  /* Process Locked */
+  __HAL_LOCK(huart);
+
+  if ((huart->gState == HAL_UART_STATE_BUSY_TX) &&
+      (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)))
+  {
+    /* Disable the UART DMA Tx request */
+    CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
+  }
+  if ((huart->RxState == HAL_UART_STATE_BUSY_RX) &&
+      (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)))
+  {
+    /* Disable 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 Resume the DMA Transfer.
+  * @param huart: UART handle.
+  * @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_IT(huart, UART_CLEAR_OREF);
+
+    /* 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);
+  }
+
+  /* If the UART peripheral is still not enabled, enable it */
+  if ((huart->Instance->CR1 & USART_CR1_UE) == 0U)
+  {
+    /* Enable UART peripheral */
+    __HAL_UART_ENABLE(huart);
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief Stop the DMA Transfer.
+  * @param huart: UART handle.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart)
+{
+  /* 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() /
+     HAL_UART_TxHalfCpltCallback / HAL_UART_RxHalfCpltCallback:
+     indeed, when HAL_DMA_Abort() API is called, the DMA TX/RX Transfer or Half Transfer complete
+     interrupt is generated if the DMA transfer interruption occurs at the middle or at the end of
+     the stream and the corresponding call back is executed. */
+
+  /* Stop UART DMA Tx request if ongoing */
+  if ((huart->gState == HAL_UART_STATE_BUSY_TX) &&
+      (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)))
+  {
+    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 */
+  if ((huart->RxState == HAL_UART_STATE_BUSY_RX) &&
+      (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)
+    {
+      HAL_DMA_Abort(huart->hdmarx);
+    }
+
+    UART_EndRxTransfer(huart);
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief This function handles UART interrupt request.
+  * @param huart: uart handle
+  * @retval None
+  */
+void HAL_UART_IRQHandler(UART_HandleTypeDef *huart)
+{
+  uint32_t isrflags   = READ_REG(huart->Instance->ISR);
+  uint32_t cr1its     = READ_REG(huart->Instance->CR1);
+  uint32_t cr3its     = READ_REG(huart->Instance->CR3);
+  uint32_t errorflags;
+
+  /* If no error occurs */
+  errorflags = (isrflags & (uint32_t)(USART_ISR_PE | USART_ISR_FE | USART_ISR_ORE | USART_ISR_NE));
+  if (errorflags == RESET)
+  {
+    /* UART in mode Receiver ---------------------------------------------------*/
+    if(((isrflags & USART_ISR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET))
+    {
+      UART_Receive_IT(huart);
+      return;
+    }
+  }
+
+  /* If some errors occur */
+  if((errorflags != RESET) && ((cr3its & (USART_CR3_EIE | USART_CR1_PEIE)) != RESET))
+  {
+
+    /* UART parity error interrupt occurred -------------------------------------*/
+    if(((isrflags & USART_ISR_PE) != RESET) && ((cr1its & USART_CR1_PEIE) != RESET))
+    {
+      __HAL_UART_CLEAR_IT(huart, UART_CLEAR_PEF);
+
+      huart->ErrorCode |= HAL_UART_ERROR_PE;
+    }
+
+    /* UART frame error interrupt occurred --------------------------------------*/
+    if(((isrflags & USART_ISR_FE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
+    {
+      __HAL_UART_CLEAR_IT(huart, UART_CLEAR_FEF);
+
+      huart->ErrorCode |= HAL_UART_ERROR_FE;
+    }
+
+    /* UART noise error interrupt occurred --------------------------------------*/
+    if(((isrflags & USART_ISR_NE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
+    {
+      __HAL_UART_CLEAR_IT(huart, UART_CLEAR_NEF);
+
+      huart->ErrorCode |= HAL_UART_ERROR_NE;
+    }
+    
+    /* UART Over-Run interrupt occurred -----------------------------------------*/
+    if(((isrflags & USART_ISR_ORE) != RESET) &&
+       (((cr1its & USART_CR1_RXNEIE) != RESET) || ((cr3its & USART_CR3_EIE) != RESET)))
+    {
+      __HAL_UART_CLEAR_IT(huart, UART_CLEAR_OREF);
+
+      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_ISR_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 */
+      if (((huart->ErrorCode & HAL_UART_ERROR_ORE) != RESET) ||
+          (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)))
+      {
+        /* 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;
+
+            /* 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
+          {
+            /* 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_ISR_TXE) != RESET) && ((cr1its & USART_CR1_TXEIE) != RESET))
+  {
+    UART_Transmit_IT(huart);
+    return;
+  }
+
+  /* UART in mode Transmitter (transmission end) -----------------------------*/
+  if(((isrflags & USART_ISR_TC) != RESET) && ((cr1its & USART_CR1_TCIE) != RESET))
+  {
+    UART_EndTransmit_IT(huart);
+    return;
+  }
+
+}
+
+/**
+  * @brief  This function handles UART Communication Timeout.
+  * @param  huart UART handle
+  * @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
+  */
+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 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 : DMA handle
+  * @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 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 : DMA handle
+  * @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)
+{
+  UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+  huart->RxXferCount = 0U;
+  huart->TxXferCount = 0U;
+  /* Stop UART DMA Tx request if ongoing */
+  if (  (huart->gState == HAL_UART_STATE_BUSY_TX)
+      &&(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)) )
+  {
+    UART_EndTxTransfer(huart);
+  }
+
+  /* Stop UART DMA Rx request if ongoing */
+  if (  (huart->RxState == HAL_UART_STATE_BUSY_RX)
+      &&(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) )
+  {
+    UART_EndRxTransfer(huart);
+  }
+  SET_BIT(huart->ErrorCode, HAL_UART_ERROR_DMA);
+  HAL_UART_ErrorCallback(huart);
+}
+
+/**
+  * @brief DMA UART communication abort callback, when call 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*)(hdma->Parent);
+  huart->RxXferCount = 0U;
+  huart->TxXferCount = 0U;
+
+  HAL_UART_ErrorCallback(huart);
+}
+
+/**
+  * @brief Tx Transfer completed callbacks
+  * @param huart: uart handle
+  * @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 can be implemented in the user file
+   */
+}
+
+/**
+  * @brief  Tx Half Transfer completed callbacks.
+  * @param  huart: UART handle
+  * @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 can be implemented in the user file
+   */
+}
+
+/**
+  * @brief Rx Transfer completed callbacks
+  * @param huart: uart handle
+  * @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 can be implemented in the user file
+   */
+}
+
+/**
+  * @brief  Rx Half Transfer completed callbacks.
+  * @param  huart: UART handle
+  * @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 can be implemented in the user file
+   */
+}
+
+/**
+  * @brief UART error callbacks
+  * @param huart: uart handle
+  * @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 can be implemented in the user file
+   */
+}
+
+/**
+  * @brief Send an amount of data in interrupt mode
+  *         Function called under interruption only, once
+  *         interruptions have been enabled by HAL_UART_Transmit_IT()
+  * @param  huart: UART handle
+  * @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->TxXferCount == 0U)
+    {
+      /* Disable the UART Transmit Data Register Empty 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
+    {
+      if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
+      {
+        tmp = (uint16_t*) huart->pTxBuffPtr;
+        huart->Instance->TDR = (*tmp & (uint16_t)0x01FFU);
+        huart->pTxBuffPtr += 2U;
+      }
+      else
+      {
+        huart->Instance->TDR = (uint8_t)(*huart->pTxBuffPtr++ & (uint8_t)0xFFU);
+      }
+
+      huart->TxXferCount--;
+
+      return HAL_OK;
+    }
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief  Wrap 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 Receive an amount of data in interrupt mode
+  *         Function called under interruption only, once
+  *         interruptions have been enabled by HAL_UART_Receive_IT()
+  * @param  huart: UART handle
+  * @retval HAL status
+  */
+static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart)
+{
+  uint16_t* tmp;
+  uint16_t uhMask = huart->Mask;
+
+  /* Check that a Rx process is ongoing */
+  if(huart->RxState == HAL_UART_STATE_BUSY_RX)
+  {
+
+    if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
+    {
+      tmp = (uint16_t*) huart->pRxBuffPtr ;
+      *tmp = (uint16_t)(huart->Instance->RDR & uhMask);
+      huart->pRxBuffPtr +=2;
+    }
+    else
+    {
+      *huart->pRxBuffPtr++ = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask);
+    }
+
+    if(--huart->RxXferCount == 0)
+    {
+      /* 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
+  {
+    /* Clear RXNE interrupt flag */
+    __HAL_UART_SEND_REQ(huart, UART_RXDATA_FLUSH_REQUEST);
+
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @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;
+}
+
+/**
+  * @}
+  */
+
+/** @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_UART_GetState() API is helpful to check in run-time the state of the UART peripheral.
+     (+) HAL_MultiProcessor_EnableMuteMode() API enables mute mode
+     (+) HAL_MultiProcessor_DisableMuteMode() API disables mute mode
+     (+) HAL_MultiProcessor_EnterMuteMode() API enters mute mode
+     (+) HAL_MultiProcessor_EnableMuteMode() API enables mute mode
+     (+) UART_SetConfig() API configures the UART peripheral
+     (+) UART_AdvFeatureConfig() API optionally configures the UART advanced features
+     (+) UART_CheckIdleState() API ensures that TEACK and/or REACK are set after initialization
+     (+) HAL_HalfDuplex_EnableTransmitter() API disables receiver and enables transmitter
+     (+) HAL_HalfDuplex_EnableReceiver() API disables transmitter and enables receiver
+     (+) HAL_LIN_SendBreak() API transmits the break characters
+	 (+) HAL_MultiProcessorEx_AddressLength_Set() API optionally sets the UART node address
+         detection length to more than 4 bits for multiprocessor address mark wake up.
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief Enable UART in mute mode (doesn't mean UART enters mute mode;
+  * to enter mute mode, HAL_MultiProcessor_EnterMuteMode() API must be called)
+  * @param huart: UART handle
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_MultiProcessor_EnableMuteMode(UART_HandleTypeDef *huart)
+{
+  /* Process Locked */
+  __HAL_LOCK(huart);
+
+  huart->gState = HAL_UART_STATE_BUSY;
+
+  /* Enable USART mute mode by setting the MME bit in the CR1 register */
+  SET_BIT(huart->Instance->CR1, USART_CR1_MME);
+
+  huart->gState = HAL_UART_STATE_READY;
+
+  return (UART_CheckIdleState(huart));
+}
+
+/**
+  * @brief Disable UART mute mode (doesn't mean it actually wakes up the software,
+  * as it may not have been in mute mode at this very moment).
+  * @param huart: uart handle
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_MultiProcessor_DisableMuteMode(UART_HandleTypeDef *huart)
+{
+  /* Process Locked */
+  __HAL_LOCK(huart);
+
+  huart->gState = HAL_UART_STATE_BUSY;
+
+   /* Disable USART mute mode by clearing the MME bit in the CR1 register */
+  CLEAR_BIT(huart->Instance->CR1, USART_CR1_MME);
+
+  huart->gState = HAL_UART_STATE_READY;
+
+  return (UART_CheckIdleState(huart));
+}
+
+/**
+  * @brief Enter UART mute mode (means UART actually enters mute mode).
+  * To exit from mute mode, HAL_MultiProcessor_DisableMuteMode() API must be called.
+  * @param huart: uart handle
+  * @retval HAL status
+  */
+void HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart)
+{
+  __HAL_UART_SEND_REQ(huart, UART_MUTE_MODE_REQUEST);
+}
+
+
+
+/**
+  * @brief return the UART state
+  * @param huart: uart handle
+  * @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 Configure the UART peripheral
+  * @param huart: uart handle
+  * @retval None
+  */
+HAL_StatusTypeDef UART_SetConfig(UART_HandleTypeDef *huart)
+{
+  uint32_t tmpreg                     = 0x00000000U;
+  UART_ClockSourceTypeDef clocksource = UART_CLOCKSOURCE_UNDEFINED;
+  uint16_t brrtemp                    = 0x0000U;
+  uint16_t usartdiv                   = 0x0000U;
+  HAL_StatusTypeDef ret               = HAL_OK;
+
+  /* Check the parameters */
+  assert_param(IS_UART_BAUDRATE(huart->Init.BaudRate));
+  assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
+  assert_param(IS_UART_STOPBITS(huart->Init.StopBits));
+  assert_param(IS_UART_PARITY(huart->Init.Parity));
+  assert_param(IS_UART_MODE(huart->Init.Mode));
+  assert_param(IS_UART_HARDWARE_FLOW_CONTROL(huart->Init.HwFlowCtl));
+  assert_param(IS_UART_ONE_BIT_SAMPLE(huart->Init.OneBitSampling));
+
+
+  /*-------------------------- USART CR1 Configuration -----------------------*/
+  /* Clear M, PCE, PS, TE, RE and OVER8 bits and configure
+   *  the UART Word Length, Parity, Mode and oversampling:
+   *  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 ;
+  MODIFY_REG(huart->Instance->CR1, UART_CR1_FIELDS, tmpreg);
+
+  /*-------------------------- USART 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);
+
+  /*-------------------------- USART CR3 Configuration -----------------------*/
+  /* Configure
+   * - UART HardWare Flow Control: set CTSE and RTSE bits according
+   *   to huart->Init.HwFlowCtl value
+   * - one-bit sampling method versus three samples' majority rule according
+   *   to huart->Init.OneBitSampling */
+  tmpreg = (uint32_t)huart->Init.HwFlowCtl | huart->Init.OneBitSampling ;
+  MODIFY_REG(huart->Instance->CR3, (USART_CR3_RTSE | USART_CR3_CTSE | USART_CR3_ONEBIT), tmpreg);
+
+  /*-------------------------- USART BRR Configuration -----------------------*/
+  UART_GETCLOCKSOURCE(huart, clocksource);
+
+  /* Check UART Over Sampling to set Baud Rate Register */
+  if (huart->Init.OverSampling == UART_OVERSAMPLING_8)
+  {
+    switch (clocksource)
+    {
+    case UART_CLOCKSOURCE_PCLK1:
+        usartdiv = (uint16_t)(UART_DIV_SAMPLING8(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
+      break;
+    case UART_CLOCKSOURCE_PCLK2:
+        usartdiv = (uint16_t)(UART_DIV_SAMPLING8(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate));
+      break;
+    case UART_CLOCKSOURCE_HSI:
+        usartdiv = (uint16_t)(UART_DIV_SAMPLING8(HSI_VALUE, huart->Init.BaudRate));
+      break;
+    case UART_CLOCKSOURCE_SYSCLK:
+        usartdiv = (uint16_t)(UART_DIV_SAMPLING8(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
+      break;
+    case UART_CLOCKSOURCE_LSE:
+        usartdiv = (uint16_t)(UART_DIV_SAMPLING8(LSE_VALUE, huart->Init.BaudRate));
+      break;
+      case UART_CLOCKSOURCE_UNDEFINED:
+    default:
+        ret = HAL_ERROR;
+      break;
+    }
+
+    brrtemp = usartdiv & 0xFFF0U;
+    brrtemp |= (uint16_t)((usartdiv & (uint16_t)0x000FU) >> 1U);
+    huart->Instance->BRR = brrtemp;
+  }
+  else
+  {
+    switch (clocksource)
+    {
+    case UART_CLOCKSOURCE_PCLK1:
+        huart->Instance->BRR = (uint16_t)(UART_DIV_SAMPLING16(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
+      break;
+    case UART_CLOCKSOURCE_PCLK2:
+        huart->Instance->BRR = (uint16_t)(UART_DIV_SAMPLING16(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate));
+      break;
+    case UART_CLOCKSOURCE_HSI:
+        huart->Instance->BRR = (uint16_t)(UART_DIV_SAMPLING16(HSI_VALUE, huart->Init.BaudRate));
+      break;
+    case UART_CLOCKSOURCE_SYSCLK:
+        huart->Instance->BRR = (uint16_t)(UART_DIV_SAMPLING16(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
+      break;
+    case UART_CLOCKSOURCE_LSE:
+        huart->Instance->BRR = (uint16_t)(UART_DIV_SAMPLING16(LSE_VALUE, huart->Init.BaudRate));
+      break;
+      case UART_CLOCKSOURCE_UNDEFINED:
+    default:
+        ret = HAL_ERROR;
+      break;
+    }
+  }
+
+  return ret;
+
+}
+
+
+/**
+  * @brief Configure the UART peripheral advanced features
+  * @param huart: uart handle
+  * @retval None
+  */
+void UART_AdvFeatureConfig(UART_HandleTypeDef *huart)
+{
+  /* Check whether the set of advanced features to configure is properly set */
+  assert_param(IS_UART_ADVFEATURE_INIT(huart->AdvancedInit.AdvFeatureInit));
+
+  /* if required, configure TX pin active level inversion */
+  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_TXINVERT_INIT))
+  {
+    assert_param(IS_UART_ADVFEATURE_TXINV(huart->AdvancedInit.TxPinLevelInvert));
+    MODIFY_REG(huart->Instance->CR2, USART_CR2_TXINV, huart->AdvancedInit.TxPinLevelInvert);
+  }
+
+  /* if required, configure RX pin active level inversion */
+  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXINVERT_INIT))
+  {
+    assert_param(IS_UART_ADVFEATURE_RXINV(huart->AdvancedInit.RxPinLevelInvert));
+    MODIFY_REG(huart->Instance->CR2, USART_CR2_RXINV, huart->AdvancedInit.RxPinLevelInvert);
+  }
+
+  /* if required, configure data inversion */
+  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DATAINVERT_INIT))
+  {
+    assert_param(IS_UART_ADVFEATURE_DATAINV(huart->AdvancedInit.DataInvert));
+    MODIFY_REG(huart->Instance->CR2, USART_CR2_DATAINV, huart->AdvancedInit.DataInvert);
+  }
+
+  /* if required, configure RX/TX pins swap */
+  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_SWAP_INIT))
+  {
+    assert_param(IS_UART_ADVFEATURE_SWAP(huart->AdvancedInit.Swap));
+    MODIFY_REG(huart->Instance->CR2, USART_CR2_SWAP, huart->AdvancedInit.Swap);
+  }
+
+  /* if required, configure RX overrun detection disabling */
+  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXOVERRUNDISABLE_INIT))
+  {
+    assert_param(IS_UART_OVERRUN(huart->AdvancedInit.OverrunDisable));
+    MODIFY_REG(huart->Instance->CR3, USART_CR3_OVRDIS, huart->AdvancedInit.OverrunDisable);
+  }
+
+  /* if required, configure DMA disabling on reception error */
+  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DMADISABLEONERROR_INIT))
+  {
+    assert_param(IS_UART_ADVFEATURE_DMAONRXERROR(huart->AdvancedInit.DMADisableonRxError));
+    MODIFY_REG(huart->Instance->CR3, USART_CR3_DDRE, huart->AdvancedInit.DMADisableonRxError);
+  }
+
+  /* if required, configure auto Baud rate detection scheme */
+  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_AUTOBAUDRATE_INIT))
+  {
+    assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATE(huart->AdvancedInit.AutoBaudRateEnable));
+    MODIFY_REG(huart->Instance->CR2, USART_CR2_ABREN, huart->AdvancedInit.AutoBaudRateEnable);
+    /* set auto Baudrate detection parameters if detection is enabled */
+    if(huart->AdvancedInit.AutoBaudRateEnable == UART_ADVFEATURE_AUTOBAUDRATE_ENABLE)
+    {
+      assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATEMODE(huart->AdvancedInit.AutoBaudRateMode));
+      MODIFY_REG(huart->Instance->CR2, USART_CR2_ABRMODE, huart->AdvancedInit.AutoBaudRateMode);
+    }
+  }
+
+  /* if required, configure MSB first on communication line */
+  if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_MSBFIRST_INIT))
+  {
+    assert_param(IS_UART_ADVFEATURE_MSBFIRST(huart->AdvancedInit.MSBFirst));
+    MODIFY_REG(huart->Instance->CR2, USART_CR2_MSBFIRST, huart->AdvancedInit.MSBFirst);
+  }
+}
+
+
+
+/**
+  * @brief Check the UART Idle State
+  * @param huart: uart handle
+  * @retval HAL status
+  */
+HAL_StatusTypeDef UART_CheckIdleState(UART_HandleTypeDef *huart)
+{
+  uint32_t tickstart = 0U;
+
+  /* Initialize the UART ErrorCode */
+  huart->ErrorCode = HAL_UART_ERROR_NONE;
+
+  /* Init tickstart for timeout managment*/
+  tickstart = HAL_GetTick();
+
+  /* Check if the Transmitter is enabled */
+  if((huart->Instance->CR1 & USART_CR1_TE) == USART_CR1_TE)
+  {
+    /* Wait until TEACK flag is set */
+    if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_TEACK, RESET, tickstart, HAL_UART_TIMEOUT_VALUE) != HAL_OK)
+    {
+      /* Timeout Occurred */
+      return HAL_TIMEOUT;
+    }
+  }
+  /* Check if the Receiver is enabled */
+  if((huart->Instance->CR1 & USART_CR1_RE) == USART_CR1_RE)
+  {
+    /* Wait until REACK flag is set */
+    if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_REACK, RESET, tickstart, HAL_UART_TIMEOUT_VALUE) != HAL_OK)
+    {
+      /* Timeout Occurred */
+      return HAL_TIMEOUT;
+    }
+  }
+
+  /* Initialize the UART State */
+  huart->gState= HAL_UART_STATE_READY;
+  huart->RxState= HAL_UART_STATE_READY;
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(huart);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Enables the UART transmitter and disables the UART receiver.
+  * @param  huart: UART handle
+  * @retval HAL status
+  * @retval None
+  */
+HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart)
+{
+  /* Process Locked */
+  __HAL_LOCK(huart);
+  huart->gState = HAL_UART_STATE_BUSY;
+
+  /* Clear TE and RE bits */
+  CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE | USART_CR1_RE));
+  /* Enable the USART's transmit interface by setting the TE bit in the USART CR1 register */
+  SET_BIT(huart->Instance->CR1, USART_CR1_TE);
+
+  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: UART handle
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart)
+{
+  /* Process Locked */
+  __HAL_LOCK(huart);
+  huart->gState = HAL_UART_STATE_BUSY;
+
+  /* Clear TE and RE bits */
+  CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE | USART_CR1_RE));
+  /* Enable the USART's receive interface by setting the RE bit in the USART CR1 register */
+  SET_BIT(huart->Instance->CR1, USART_CR1_RE);
+
+  huart->gState = HAL_UART_STATE_READY;
+  /* Process Unlocked */
+  __HAL_UNLOCK(huart);
+
+  return HAL_OK;
+}
+
+
+/**
+  * @brief  Transmits break characters.
+  * @param  huart: UART handle
+  * @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->RQR, UART_SENDBREAK_REQUEST);
+
+  huart->gState = HAL_UART_STATE_READY;
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(huart);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief By default in multiprocessor mode, when the wake up method is set
+  *        to address mark, the UART handles only 4-bit long addresses detection;
+  *        this API allows to enable longer addresses detection (6-, 7- or 8-bit
+  *        long).
+  * @note  Addresses detection lengths are: 6-bit address detection in 7-bit data mode,
+  *        7-bit address detection in 8-bit data mode, 8-bit address detection in 9-bit data mode.
+  * @param huart: UART handle.
+  * @param AddressLength: this parameter can be one of the following values:
+  *          @arg @ref UART_ADDRESS_DETECT_4B 4-bit long address
+  *          @arg @ref UART_ADDRESS_DETECT_7B 6-, 7- or 8-bit long address
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_MultiProcessorEx_AddressLength_Set(UART_HandleTypeDef *huart, uint32_t AddressLength)
+{
+  /* Check the UART handle allocation */
+  if(huart == NULL)
+  {
+    return HAL_ERROR;
+  }
+
+  /* Check the address length parameter */
+  assert_param(IS_UART_ADDRESSLENGTH_DETECT(AddressLength));
+
+  huart->gState = HAL_UART_STATE_BUSY;
+
+  /* Disable the Peripheral */
+  __HAL_UART_DISABLE(huart);
+
+  /* Set the address length */
+  MODIFY_REG(huart->Instance->CR2, USART_CR2_ADDM7, AddressLength);
+
+  /* Enable the Peripheral */
+  __HAL_UART_ENABLE(huart);
+
+  /* TEACK and/or REACK to check before moving huart->gState to Ready */
+  return (UART_CheckIdleState(huart));
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* HAL_UART_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/