--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/l476rg/Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_uart.c	Thu Jan 12 02:45:43 2017 +0300
@@ -0,0 +1,2783 @@
+/**
+  ******************************************************************************
+  * @file    stm32l4xx_hal_uart.c
+  * @author  MCD Application Team
+  * @version V1.6.0
+  * @date    28-October-2016
+  * @brief   UART HAL module driver.
+  *          This file provides firmware functions to manage the following
+  *          functionalities of the Universal Asynchronous Receiver Transmitter Peripheral (UART).
+  *           + Initialization and de-initialization functions
+  *           + IO operation functions
+  *           + Peripheral Control functions
+  *
+  *
+  @verbatim
+ ===============================================================================
+                        ##### How to use this driver #####
+ ===============================================================================
+  [..]
+    The UART HAL driver can be used as follows:
+
+    (#) Declare a UART_HandleTypeDef handle structure (eg. UART_HandleTypeDef huart).
+    (#) 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.
+        (++) UART interrupts handling:
+              -@@-  The specific UART interrupts (Transmission complete interrupt,
+                RXNE interrupt and Error Interrupts) are managed using the macros
+                __HAL_UART_ENABLE_IT() and __HAL_UART_DISABLE_IT() inside the transmit and receive processes.
+        (++) DMA Configuration if you need to use DMA process (HAL_UART_Transmit_DMA()
+             and HAL_UART_Receive_DMA() APIs):
+            (+++) Declare a DMA handle structure for the Tx/Rx channel.
+            (+++) Enable the DMAx interface clock.
+            (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
+            (+++) Configure the DMA Tx/Rx channel.
+            (+++) Associate the initialized DMA handle to the UART DMA Tx/Rx handle.
+            (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx/Rx channel.
+
+    (#) Program the Baud Rate, Word Length, Stop Bit, Parity, Hardware
+        flow control and Mode (Receiver/Transmitter) in the huart handle Init structure.
+
+    (#) If required, program UART advanced features (TX/RX pins swap, auto Baud rate detection,...)
+        in the huart handle AdvancedInit 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 UART LIN (Local Interconnection Network) mode, initialize the UART registers
+        by calling the HAL_LIN_Init() API.
+
+    (#) For the UART Multiprocessor mode, initialize the UART registers
+        by calling the HAL_MultiProcessor_Init() API.
+
+    (#) For the UART RS485 Driver Enabled mode, initialize the UART registers
+        by calling the HAL_RS485Ex_Init() API.
+
+    [..]
+    (@) These API's (HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_LIN_Init(), HAL_MultiProcessor_Init(),
+        also configure the low level Hardware GPIO, CLOCK, CORTEX...etc) by
+        calling the customized HAL_UART_MspInit() API.
+
+  @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 "stm32l4xx_hal.h"
+
+/** @addtogroup STM32L4xx_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)) /*!< UART or USART CR1 fields of parameters set by UART_SetConfig API */
+
+#define UART_LPUART_BRR_MIN           ((uint32_t)0x00000300)  /* LPUART BRR minimum authorized value */
+#define UART_LPUART_BRR_MAX           ((uint32_t)0x000FFFFF)  /* LPUART BRR maximum authorized value */                                                                      
+/**
+  * @}
+  */
+
+/* Private macros ------------------------------------------------------------*/
+/* 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 void UART_DMATxAbortCallback(DMA_HandleTypeDef *hdma);
+static void UART_DMARxAbortCallback(DMA_HandleTypeDef *hdma);
+static void UART_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma);
+static void UART_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma);
+static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart);
+static HAL_StatusTypeDef UART_EndTransmit_IT(UART_HandleTypeDef *huart);
+static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart);
+/**
+  * @}
+  */
+
+/* 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 the parameters below 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.
+        (++) Hardware flow control
+        (++) Receiver/transmitter modes
+        (++) Over Sampling Method
+        (++) One-Bit Sampling Method
+      (+) For the asynchronous mode, the following advanced features can be configured as well:
+        (++) TX and/or RX pin level inversion
+        (++) data logical level inversion
+        (++) RX and TX pins swap
+        (++) RX overrun detection disabling
+        (++) DMA disabling on RX error
+        (++) MSB first on communication line
+        (++) auto Baud rate detection
+    [..]
+    The HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_LIN_Init()and HAL_MultiProcessor_Init()API
+    follow respectively the UART asynchronous, UART Half duplex, UART LIN mode
+    and UART multiprocessor mode configuration procedures (details for the procedures
+    are available in reference manual).
+
+@endverbatim
+
+  Depending on the frame length defined by the M1 and M0 bits (7-bit, 
+  8-bit or 9-bit), the possible UART formats are listed in the 
+  following table.
+  
+  Table 1. UART frame format.
+    +-----------------------------------------------------------------------+
+    |  M1 bit |  M0 bit |  PCE bit  |             UART frame                |
+    |---------|---------|-----------|---------------------------------------|
+    |    0    |    0    |    0      |    | SB |    8 bit data   | STB |     |
+    |---------|---------|-----------|---------------------------------------|
+    |    0    |    0    |    1      |    | SB | 7 bit data | PB | STB |     |
+    |---------|---------|-----------|---------------------------------------|
+    |    0    |    1    |    0      |    | SB |    9 bit data   | STB |     |
+    |---------|---------|-----------|---------------------------------------|
+    |    0    |    1    |    1      |    | SB | 8 bit data | PB | STB |     |
+    |---------|---------|-----------|---------------------------------------|
+    |    1    |    0    |    0      |    | SB |    7 bit data   | STB |     |
+    |---------|---------|-----------|---------------------------------------|
+    |    1    |    0    |    1      |    | SB | 6 bit data | PB | STB |     |
+    +-----------------------------------------------------------------------+
+
+  * @{
+  */
+
+/**
+  * @brief Initialize the UART mode according to the specified
+  *        parameters in the UART_InitTypeDef and initialize 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)) || (IS_LPUART_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 Initialize 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;
+  }
+
+  /* Check UART instance */
+  assert_param(IS_UART_HALFDUPLEX_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 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 LIN UART instance */
+  assert_param(IS_UART_LIN_INSTANCE(huart->Instance));
+  /* Check the Break detection length parameter */
+  assert_param(IS_UART_LIN_BREAK_DETECT_LENGTH(BreakDetectLength));
+
+  /* LIN mode limited to 16-bit oversampling only */
+  if(huart->Init.OverSampling == UART_OVERSAMPLING_8)
+  {
+    return HAL_ERROR;
+  }
+  /* LIN mode limited to 8-bit data length */
+  if(huart->Init.WordLength != UART_WORDLENGTH_8B)
+  {
+    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 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, the API
+  *        HAL_MultiProcessorEx_AddressLength_Set() must be called after
+  *        HAL_MultiProcessor_Init().
+  * @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 DeInitialize 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)) || (IS_LPUART_INSTANCE(huart->Instance)));
+
+  huart->gState = 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->gState    = HAL_UART_STATE_RESET;
+  huart->RxState   = HAL_UART_STATE_RESET;
+
+  /* Process Unlock */
+  __HAL_UNLOCK(huart);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief Initialize the UART MSP.
+  * @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 DeInitialize the UART MSP.
+  * @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()
+
+    (#) 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()
+
+    (#) Non-Blocking mode transfers could be aborted using Abort API's :
+        (+) HAL_UART_Abort()
+        (+) HAL_UART_AbortTransmit()
+        (+) HAL_UART_AbortReceive()
+        (+) HAL_UART_Abort_IT()
+        (+) HAL_UART_AbortTransmit_IT()
+        (+) HAL_UART_AbortReceive_IT()
+
+    (#) For Abort services based on interrupts (HAL_UART_Abortxxx_IT), a set of Abort Complete Callbacks are provided:
+        (+) HAL_UART_AbortCpltCallback()
+        (+) HAL_UART_AbortTransmitCpltCallback()
+        (+) HAL_UART_AbortReceiveCpltCallback()
+
+    (#) In Non-Blocking mode transfers, possible errors are split into 2 categories.
+        Errors are handled as follows :
+       (+) Error is considered as Recoverable and non blocking : Transfer could go till end, but error severity is 
+           to be evaluated by user : this concerns Frame Error, Parity Error or Noise Error in Interrupt mode reception .
+           Received character is then retrieved and stored in Rx buffer, Error code is set to allow user to identify error type,
+           and HAL_UART_ErrorCallback() user callback is executed. Transfer is kept ongoing on UART side.
+           If user wants to abort it, Abort services should be called by user.
+       (+) Error is considered as Blocking : Transfer could not be completed properly and is aborted.
+           This concerns Overrun Error In Interrupt mode reception and all errors in DMA mode.
+           Error code is set to allow user to identify error type, and HAL_UART_ErrorCallback() user callback is executed.
+
+    -@- 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 = 0;
+
+  /* Check that a Tx process is not already ongoing */
+  if(huart->gState == HAL_UART_STATE_READY)
+  {
+    if((pData == NULL ) || (Size == 0))
+    {
+      return  HAL_ERROR;
+    }
+
+    /* Process Locked */
+    __HAL_LOCK(huart);
+
+    huart->ErrorCode = HAL_UART_ERROR_NONE;
+    huart->gState = HAL_UART_STATE_BUSY_TX;
+
+    /* Init tickstart for timeout managment*/
+    tickstart = HAL_GetTick();
+
+    huart->TxXferSize = Size;
+    huart->TxXferCount = Size;
+    while(huart->TxXferCount > 0)
+    {
+      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)0x01FF);
+        pData += 2;
+      }
+      else
+      {
+        huart->Instance->TDR = (*pData++ & (uint8_t)0xFF);
+      }
+    }
+    if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, tickstart, Timeout) != HAL_OK)
+    {
+      return HAL_TIMEOUT;
+    }
+
+    /* At end of Tx process, restore huart->gState to Ready */
+    huart->gState = HAL_UART_STATE_READY;
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(huart);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief Receive an amount of data in blocking mode.
+  * @param huart: 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 = 0;
+
+  /* Check that a Rx process is not already ongoing */
+  if(huart->RxState == HAL_UART_STATE_READY)
+  {
+    if((pData == NULL ) || (Size == 0))
+    {
+      return  HAL_ERROR;
+    }
+
+    /* Process Locked */
+    __HAL_LOCK(huart);
+
+    huart->ErrorCode = HAL_UART_ERROR_NONE;
+    huart->RxState = HAL_UART_STATE_BUSY_RX;
+
+    /* Init tickstart for timeout managment*/
+    tickstart = HAL_GetTick();
+
+    huart->RxXferSize = Size;
+    huart->RxXferCount = Size;
+
+    /* 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, 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 +=2;
+      }
+      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 == 0))
+    {
+      return HAL_ERROR;
+    }
+
+    /* Process Locked */
+    __HAL_LOCK(huart);
+
+    huart->pTxBuffPtr = pData;
+    huart->TxXferSize = Size;
+    huart->TxXferCount = Size;
+
+    huart->ErrorCode = HAL_UART_ERROR_NONE;
+    huart->gState = HAL_UART_STATE_BUSY_TX;
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(huart);
+
+    /* Enable the UART Transmit Data Register Empty Interrupt */
+    SET_BIT(huart->Instance->CR1, USART_CR1_TXEIE);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief 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 == 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;
+    huart->RxState = HAL_UART_STATE_BUSY_RX;
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(huart);
+
+    /* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
+    SET_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+    /* Enable the UART Parity Error and Data Register not empty Interrupts */
+    SET_BIT(huart->Instance->CR1, USART_CR1_PEIE | USART_CR1_RXNEIE);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief 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)
+{
+  /* Check that a Tx process is not already ongoing */
+  if(huart->gState == HAL_UART_STATE_READY)
+  {
+    if((pData == NULL ) || (Size == 0))
+    {
+      return HAL_ERROR;
+    }
+
+    /* Process Locked */
+    __HAL_LOCK(huart);
+
+    huart->pTxBuffPtr = pData;
+    huart->TxXferSize = Size;
+    huart->TxXferCount = Size;
+
+    huart->ErrorCode = HAL_UART_ERROR_NONE;
+    huart->gState = HAL_UART_STATE_BUSY_TX;
+
+    /* Set the UART DMA transfer complete callback */
+    huart->hdmatx->XferCpltCallback = UART_DMATransmitCplt;
+
+    /* Set the UART DMA Half transfer complete callback */
+    huart->hdmatx->XferHalfCpltCallback = UART_DMATxHalfCplt;
+
+    /* Set the DMA error callback */
+    huart->hdmatx->XferErrorCallback = UART_DMAError;
+
+    /* Set the DMA abort callback */
+    huart->hdmatx->XferAbortCallback = NULL;
+
+    /* Enable the UART transmit DMA channel */
+    HAL_DMA_Start_IT(huart->hdmatx, (uint32_t)huart->pTxBuffPtr, (uint32_t)&huart->Instance->TDR, Size);
+
+    /* Clear the TC flag in the ICR register */
+    __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_TCF);
+
+    /* 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)
+{
+  /* Check that a Rx process is not already ongoing */
+  if(huart->RxState == HAL_UART_STATE_READY)
+  {
+    if((pData == NULL ) || (Size == 0))
+    {
+      return HAL_ERROR;
+    }
+
+    /* Process Locked */
+    __HAL_LOCK(huart);
+
+    huart->pRxBuffPtr = pData;
+    huart->RxXferSize = Size;
+
+    huart->ErrorCode = HAL_UART_ERROR_NONE;
+    huart->RxState = HAL_UART_STATE_BUSY_RX;
+
+    /* Set the UART DMA transfer complete callback */
+    huart->hdmarx->XferCpltCallback = UART_DMAReceiveCplt;
+
+    /* Set the UART DMA Half transfer complete callback */
+    huart->hdmarx->XferHalfCpltCallback = UART_DMARxHalfCplt;
+
+    /* Set the DMA error callback */
+    huart->hdmarx->XferErrorCallback = UART_DMAError;
+
+    /* Set the DMA abort callback */
+    huart->hdmarx->XferAbortCallback = NULL;
+
+    /* Enable the DMA channel */
+    HAL_DMA_Start_IT(huart->hdmarx, (uint32_t)&huart->Instance->RDR, (uint32_t)huart->pRxBuffPtr, 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_FLAG(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);
+  }
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(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  Abort ongoing transfers (blocking mode).
+  * @param  huart UART handle.
+  * @note   This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. 
+  *         This procedure performs following operations :
+  *           - Disable UART Interrupts (Tx and Rx)
+  *           - Disable the DMA transfer in the peripheral register (if enabled)
+  *           - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode)
+  *           - Set handle State to READY
+  * @note   This procedure is executed in blocking mode : when exiting function, Abort is considered as completed.
+  * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_UART_Abort(UART_HandleTypeDef *huart)
+{
+  /* Disable TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+  CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE));
+  CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+  /* Disable the UART DMA Tx request if enabled */
+  if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT))
+  {
+    CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
+
+    /* Abort the UART DMA Tx channel : use blocking DMA Abort API (no callback) */
+    if(huart->hdmatx != NULL)
+    {
+      /* Set the UART DMA Abort callback to Null. 
+         No call back execution at end of DMA abort procedure */
+      huart->hdmatx->XferAbortCallback = NULL;
+
+      HAL_DMA_Abort(huart->hdmatx);
+    }
+  }
+
+  /* Disable the UART DMA Rx request if enabled */
+  if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
+  {
+    CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
+
+    /* Abort the UART DMA Rx channel : use blocking DMA Abort API (no callback) */
+    if(huart->hdmarx != NULL)
+    {
+      /* Set the UART DMA Abort callback to Null. 
+         No call back execution at end of DMA abort procedure */
+      huart->hdmarx->XferAbortCallback = NULL;
+
+      HAL_DMA_Abort(huart->hdmarx);
+    }
+  }
+
+  /* Reset Tx and Rx transfer counters */
+  huart->TxXferCount = 0; 
+  huart->RxXferCount = 0; 
+
+  /* Clear the Error flags in the ICR register */
+  __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF);
+
+  /* Restore huart->gState and huart->RxState to Ready */
+  huart->gState  = HAL_UART_STATE_READY;
+  huart->RxState = HAL_UART_STATE_READY;
+
+  /* Reset Handle ErrorCode to No Error */
+  huart->ErrorCode = HAL_UART_ERROR_NONE;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Abort ongoing Transmit transfer (blocking mode).
+  * @param  huart UART handle.
+  * @note   This procedure could be used for aborting any ongoing Tx transfer started in Interrupt or DMA mode. 
+  *         This procedure performs following operations :
+  *           - Disable UART Interrupts (Tx)
+  *           - Disable the DMA transfer in the peripheral register (if enabled)
+  *           - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode)
+  *           - Set handle State to READY
+  * @note   This procedure is executed in blocking mode : when exiting function, Abort is considered as completed.
+  * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_UART_AbortTransmit(UART_HandleTypeDef *huart)
+{
+  /* Disable TXEIE and TCIE interrupts */
+  CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
+
+  /* Disable the UART DMA Tx request if enabled */
+  if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT))
+  {
+    CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
+
+    /* Abort the UART DMA Tx channel : use blocking DMA Abort API (no callback) */
+    if(huart->hdmatx != NULL)
+    {
+      /* Set the UART DMA Abort callback to Null. 
+         No call back execution at end of DMA abort procedure */
+      huart->hdmatx->XferAbortCallback = NULL;
+
+      HAL_DMA_Abort(huart->hdmatx);
+    }
+  }
+
+  /* Reset Tx transfer counter */
+  huart->TxXferCount = 0; 
+
+  /* Restore huart->gState to Ready */
+  huart->gState = HAL_UART_STATE_READY;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Abort ongoing Receive transfer (blocking mode).
+  * @param  huart UART handle.
+  * @note   This procedure could be used for aborting any ongoing Rx transfer started in Interrupt or DMA mode. 
+  *         This procedure performs following operations :
+  *           - Disable UART Interrupts (Rx)
+  *           - Disable the DMA transfer in the peripheral register (if enabled)
+  *           - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode)
+  *           - Set handle State to READY
+  * @note   This procedure is executed in blocking mode : when exiting function, Abort is considered as completed.
+  * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_UART_AbortReceive(UART_HandleTypeDef *huart)
+{
+  /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+  CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
+  CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+  /* Disable the UART DMA Rx request if enabled */
+  if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
+  {
+    CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
+
+    /* Abort the UART DMA Rx channel : use blocking DMA Abort API (no callback) */
+    if(huart->hdmarx != NULL)
+    {
+      /* Set the UART DMA Abort callback to Null. 
+         No call back execution at end of DMA abort procedure */
+      huart->hdmarx->XferAbortCallback = NULL;
+
+      HAL_DMA_Abort(huart->hdmarx);
+    }
+  }
+
+  /* Reset Rx transfer counter */
+  huart->RxXferCount = 0; 
+
+  /* Clear the Error flags in the ICR register */
+  __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF);
+
+  /* Restore huart->RxState to Ready */
+  huart->RxState = HAL_UART_STATE_READY;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Abort ongoing transfers (Interrupt mode).
+  * @param  huart UART handle.
+  * @note   This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. 
+  *         This procedure performs following operations :
+  *           - Disable UART Interrupts (Tx and Rx)
+  *           - Disable the DMA transfer in the peripheral register (if enabled)
+  *           - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode)
+  *           - Set handle State to READY
+  *           - At abort completion, call user abort complete callback
+  * @note   This procedure is executed in Interrupt mode, meaning that abort procedure could be
+  *         considered as completed only when user abort complete callback is executed (not when exiting function).
+  * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_UART_Abort_IT(UART_HandleTypeDef *huart)
+{
+  uint32_t abortcplt = 1;
+  
+  /* Disable TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+  CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE));
+  CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+  /* If DMA Tx and/or DMA Rx Handles are associated to UART Handle, DMA Abort complete callbacks should be initialised
+     before any call to DMA Abort functions */
+  /* DMA Tx Handle is valid */
+  if(huart->hdmatx != NULL)
+  {
+    /* Set DMA Abort Complete callback if UART DMA Tx request if enabled.
+       Otherwise, set it to NULL */
+    if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT))
+    {
+      huart->hdmatx->XferAbortCallback = UART_DMATxAbortCallback;
+    }
+    else
+    {
+      huart->hdmatx->XferAbortCallback = NULL;
+    }
+  }
+  /* DMA Rx Handle is valid */
+  if(huart->hdmarx != NULL)
+  {
+    /* Set DMA Abort Complete callback if UART DMA Rx request if enabled.
+       Otherwise, set it to NULL */
+    if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
+    {
+      huart->hdmarx->XferAbortCallback = UART_DMARxAbortCallback;
+    }
+    else
+    {
+      huart->hdmarx->XferAbortCallback = NULL;
+    }
+  }
+  
+  /* Disable the UART DMA Tx request if enabled */
+  if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT))
+  {
+    /* Disable DMA Tx at UART level */
+    CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
+
+    /* Abort the UART DMA Tx channel : use non blocking DMA Abort API (callback) */
+    if(huart->hdmatx != NULL)
+    {
+      /* UART Tx DMA Abort callback has already been initialised : 
+         will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */
+
+      /* Abort DMA TX */
+      if(HAL_DMA_Abort_IT(huart->hdmatx) != HAL_OK)
+      {
+        huart->hdmatx->XferAbortCallback = NULL;
+      }
+      else
+      {
+        abortcplt = 0;
+      }
+    }
+  }
+
+  /* Disable the UART DMA Rx request if enabled */
+  if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
+  {
+    CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
+
+    /* Abort the UART DMA Rx channel : use non blocking DMA Abort API (callback) */
+    if(huart->hdmarx != NULL)
+    {
+      /* UART Rx DMA Abort callback has already been initialised : 
+         will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */
+
+      /* Abort DMA RX */
+      if(HAL_DMA_Abort_IT(huart->hdmarx) != HAL_OK)
+      {
+        huart->hdmarx->XferAbortCallback = NULL;
+        abortcplt = 1;
+      }
+      else
+      {
+        abortcplt = 0;
+      }
+    }
+  }
+
+  /* if no DMA abort complete callback execution is required => call user Abort Complete callback */
+  if (abortcplt == 1)
+  {
+    /* Reset Tx and Rx transfer counters */
+    huart->TxXferCount = 0; 
+    huart->RxXferCount = 0;
+
+    /* Reset errorCode */
+    huart->ErrorCode = HAL_UART_ERROR_NONE;
+
+    /* Clear the Error flags in the ICR register */
+    __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF);
+
+    /* Restore huart->gState and huart->RxState to Ready */
+    huart->gState  = HAL_UART_STATE_READY;
+    huart->RxState = HAL_UART_STATE_READY;
+
+    /* As no DMA to be aborted, call directly user Abort complete callback */
+    HAL_UART_AbortCpltCallback(huart);
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Abort ongoing Transmit transfer (Interrupt mode).
+  * @param  huart UART handle.
+  * @note   This procedure could be used for aborting any ongoing Tx transfer started in Interrupt or DMA mode. 
+  *         This procedure performs following operations :
+  *           - Disable UART Interrupts (Tx)
+  *           - Disable the DMA transfer in the peripheral register (if enabled)
+  *           - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode)
+  *           - Set handle State to READY
+  *           - At abort completion, call user abort complete callback
+  * @note   This procedure is executed in Interrupt mode, meaning that abort procedure could be
+  *         considered as completed only when user abort complete callback is executed (not when exiting function).
+  * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_UART_AbortTransmit_IT(UART_HandleTypeDef *huart)
+{
+  /* Disable TXEIE and TCIE interrupts */
+  CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
+
+  /* Disable the UART DMA Tx request if enabled */
+  if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT))
+  {
+    CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
+
+    /* Abort the UART DMA Tx channel : use non blocking DMA Abort API (callback) */
+    if(huart->hdmatx != NULL)
+    {
+      /* Set the UART DMA Abort callback : 
+         will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */
+      huart->hdmatx->XferAbortCallback = UART_DMATxOnlyAbortCallback;
+
+      /* Abort DMA TX */
+      if(HAL_DMA_Abort_IT(huart->hdmatx) != HAL_OK)
+      {
+        /* Call Directly huart->hdmatx->XferAbortCallback function in case of error */
+        huart->hdmatx->XferAbortCallback(huart->hdmatx);
+      }
+    }
+    else
+    {
+      /* Reset Tx transfer counter */
+      huart->TxXferCount = 0; 
+
+      /* Restore huart->gState to Ready */
+      huart->gState = HAL_UART_STATE_READY;
+
+      /* As no DMA to be aborted, call directly user Abort complete callback */
+      HAL_UART_AbortTransmitCpltCallback(huart);
+    }
+  }
+  else
+  {
+    /* Reset Tx transfer counter */
+    huart->TxXferCount = 0; 
+
+    /* Restore huart->gState to Ready */
+    huart->gState = HAL_UART_STATE_READY;
+
+    /* As no DMA to be aborted, call directly user Abort complete callback */
+    HAL_UART_AbortTransmitCpltCallback(huart);
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Abort ongoing Receive transfer (Interrupt mode).
+  * @param  huart UART handle.
+  * @note   This procedure could be used for aborting any ongoing Rx transfer started in Interrupt or DMA mode. 
+  *         This procedure performs following operations :
+  *           - Disable UART Interrupts (Rx)
+  *           - Disable the DMA transfer in the peripheral register (if enabled)
+  *           - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode)
+  *           - Set handle State to READY
+  *           - At abort completion, call user abort complete callback
+  * @note   This procedure is executed in Interrupt mode, meaning that abort procedure could be
+  *         considered as completed only when user abort complete callback is executed (not when exiting function).
+  * @retval HAL status
+*/
+HAL_StatusTypeDef HAL_UART_AbortReceive_IT(UART_HandleTypeDef *huart)
+{
+  /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+  CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
+  CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+  /* Disable the UART DMA Rx request if enabled */
+  if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
+  {
+    CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
+
+    /* Abort the UART DMA Rx channel : use non blocking DMA Abort API (callback) */
+    if(huart->hdmarx != NULL)
+    {
+      /* Set the UART DMA Abort callback : 
+         will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */
+      huart->hdmarx->XferAbortCallback = UART_DMARxOnlyAbortCallback;
+
+      /* Abort DMA RX */
+      if(HAL_DMA_Abort_IT(huart->hdmarx) != HAL_OK)
+      {
+        /* Call Directly huart->hdmarx->XferAbortCallback function in case of error */
+        huart->hdmarx->XferAbortCallback(huart->hdmarx);
+      }
+    }
+    else
+    {
+      /* Reset Rx transfer counter */
+      huart->RxXferCount = 0; 
+
+      /* Clear the Error flags in the ICR register */
+      __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF);
+
+      /* Restore huart->RxState to Ready */
+      huart->RxState = HAL_UART_STATE_READY;
+
+      /* As no DMA to be aborted, call directly user Abort complete callback */
+      HAL_UART_AbortReceiveCpltCallback(huart);
+    }
+  }
+  else
+  {
+    /* Reset Rx transfer counter */
+    huart->RxXferCount = 0; 
+
+    /* Clear the Error flags in the ICR register */
+    __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF);
+
+    /* Restore huart->RxState to Ready */
+    huart->RxState = HAL_UART_STATE_READY;
+
+    /* As no DMA to be aborted, call directly user Abort complete callback */
+    HAL_UART_AbortReceiveCpltCallback(huart);
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief Handle 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;
+  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 */
+  cr3its = READ_REG(huart->Instance->CR3);
+  if(   (errorflags != RESET)
+     && (   ((cr3its & USART_CR3_EIE) != RESET)
+         || ((cr1its & (USART_CR1_RXNEIE | 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 wakeup from Stop mode interrupt occurred ---------------------------*/
+  cr3its = READ_REG(huart->Instance->CR3);
+  if(((isrflags & USART_ISR_WUF) != RESET) && ((cr3its & USART_CR3_WUFIE) != RESET))
+  {
+    __HAL_UART_CLEAR_IT(huart, UART_CLEAR_WUF);
+    /* Set the UART state ready to be able to start again the process */
+    huart->gState  = HAL_UART_STATE_READY;
+    huart->RxState = HAL_UART_STATE_READY;
+    HAL_UARTEx_WakeupCallback(huart);
+    return;
+  }
+
+  /* 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 Tx Transfer completed callback.
+  * @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 callback.
+  * @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 callback.
+  * @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 callback.
+  * @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 callback.
+  * @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  UART Abort Complete callback.
+  * @param  huart UART handle.
+  * @retval None
+  */
+__weak void HAL_UART_AbortCpltCallback (UART_HandleTypeDef *huart)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(huart);
+
+  /* NOTE : This function should not be modified, when the callback is needed,
+            the HAL_UART_AbortCpltCallback can be implemented in the user file.
+   */
+}
+
+/**
+  * @brief  UART Abort Complete callback.
+  * @param  huart UART handle.
+  * @retval None
+  */
+__weak void HAL_UART_AbortTransmitCpltCallback (UART_HandleTypeDef *huart)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(huart);
+
+  /* NOTE : This function should not be modified, when the callback is needed,
+            the HAL_UART_AbortTransmitCpltCallback can be implemented in the user file.
+   */
+}
+
+/**
+  * @brief  UART Abort Receive Complete callback.
+  * @param  huart UART handle.
+  * @retval None
+  */
+__weak void HAL_UART_AbortReceiveCpltCallback (UART_HandleTypeDef *huart)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(huart);
+
+  /* NOTE : This function should not be modified, when the callback is needed,
+            the HAL_UART_AbortReceiveCpltCallback can be implemented in the user file.
+   */
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup UART_Exported_Functions_Group3 Peripheral Control functions
+  *  @brief   UART control functions
+  *
+@verbatim
+ ===============================================================================
+                      ##### Peripheral Control functions #####
+ ===============================================================================
+    [..]
+    This subsection provides a set of functions allowing to control the UART.
+     (+) HAL_MultiProcessor_EnableMuteMode() API enables mute mode
+     (+) HAL_MultiProcessor_DisableMuteMode() API disables mute mode
+     (+) HAL_MultiProcessor_EnterMuteMode() API enters 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 (does not 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 (does not mean the UART actually exits mute mode
+  *         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).
+  * @note  To exit from mute mode, HAL_MultiProcessor_DisableMuteMode() API must be called.
+  * @param huart: UART handle.
+  * @retval None
+  */
+void HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart)
+{
+  __HAL_UART_SEND_REQ(huart, UART_MUTE_MODE_REQUEST);
+}
+
+/**
+  * @brief  Enable the UART transmitter and disable the UART receiver.
+  * @param  huart: UART handle.
+  * @retval HAL status
+  */
+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  Enable the UART receiver and disable 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  Transmit break characters.
+  * @param  huart: UART handle.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart)
+{
+  /* Check the parameters */
+  assert_param(IS_UART_LIN_INSTANCE(huart->Instance));
+
+  /* Process Locked */
+  __HAL_LOCK(huart);
+
+  huart->gState = HAL_UART_STATE_BUSY;
+
+  /* Send break characters */
+  huart->Instance->RQR |= UART_SENDBREAK_REQUEST;
+
+  huart->gState = HAL_UART_STATE_READY;
+
+  /* Process Unlocked */
+  __HAL_UNLOCK(huart);
+
+  return HAL_OK;
+}
+
+
+/**
+  * @}
+  */
+
+/** @defgroup UART_Exported_Functions_Group4 Peripheral State and Error functions
+ *  @brief   UART Peripheral State functions
+ *
+@verbatim
+  ==============================================================================
+            ##### Peripheral State and Error functions #####
+  ==============================================================================
+    [..]
+    This subsection provides functions allowing to :
+      (+) Return the UART handle state.
+      (+) Return the UART handle error code
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Return the UART handle state.
+  * @param  huart Pointer to a UART_HandleTypeDef structure that contains
+  *               the configuration information for the specified UART.
+  * @retval HAL state
+  */
+HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart)
+{
+  uint32_t temp1= 0x00, temp2 = 0x00;
+  temp1 = huart->gState;
+  temp2 = huart->RxState;
+
+  return (HAL_UART_StateTypeDef)(temp1 | temp2);
+}
+
+/**
+  * @brief  Return the UART handle 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;
+}
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/** @defgroup UART_Private_Functions UART Private Functions
+  * @{
+  */
+
+/**
+  * @brief Configure the UART peripheral.
+  * @param huart: UART handle.
+  * @retval HAL status
+  */
+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));
+  if(UART_INSTANCE_LOWPOWER(huart))
+  {
+    assert_param(IS_LPUART_STOPBITS(huart->Init.StopBits));
+  }
+  else
+  {
+    assert_param(IS_UART_STOPBITS(huart->Init.StopBits));
+    assert_param(IS_UART_ONE_BIT_SAMPLE(huart->Init.OneBitSampling));
+  }
+
+  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_OVERSAMPLING(huart->Init.OverSampling));
+
+
+  /*-------------------------- 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 (not applicable to LPUART) */
+  tmpreg = (uint32_t)huart->Init.HwFlowCtl;
+  if (!(UART_INSTANCE_LOWPOWER(huart)))
+  {
+    tmpreg |= 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 LPUART instance */
+  if(UART_INSTANCE_LOWPOWER(huart))
+  {
+    /* Retrieve frequency clock */
+    tmpreg = 0;
+
+    switch (clocksource)
+    {
+    case UART_CLOCKSOURCE_PCLK1:
+      tmpreg = HAL_RCC_GetPCLK1Freq();
+      break;
+    case UART_CLOCKSOURCE_HSI:
+      tmpreg = (uint32_t) HSI_VALUE;
+      break;
+    case UART_CLOCKSOURCE_SYSCLK:
+      tmpreg = HAL_RCC_GetSysClockFreq();
+      break;
+    case UART_CLOCKSOURCE_LSE:
+      tmpreg = (uint32_t) LSE_VALUE;
+      break;
+    case UART_CLOCKSOURCE_UNDEFINED:
+    default:
+        ret = HAL_ERROR;
+      break;
+    }
+
+    /* if proper clock source reported */
+    if (tmpreg != 0)
+    {
+      /* ensure that Frequency clock is in the range [3 * baudrate, 4096 * baudrate] */
+      if ( (tmpreg < (3 * huart->Init.BaudRate) ) ||
+           (tmpreg > (4096 * huart->Init.BaudRate) ))
+      {
+        ret = HAL_ERROR;
+      }
+      else
+      {
+        switch (clocksource)
+        {
+        case UART_CLOCKSOURCE_PCLK1:
+            tmpreg = (uint32_t)(UART_DIV_LPUART(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
+          break;
+        case UART_CLOCKSOURCE_HSI:
+            tmpreg = (uint32_t)(UART_DIV_LPUART(HSI_VALUE, huart->Init.BaudRate));
+          break;
+        case UART_CLOCKSOURCE_SYSCLK:
+            tmpreg = (uint32_t)(UART_DIV_LPUART(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
+          break;
+        case UART_CLOCKSOURCE_LSE:
+            tmpreg = (uint32_t)(UART_DIV_LPUART(LSE_VALUE, huart->Init.BaudRate));
+          break;
+        case UART_CLOCKSOURCE_UNDEFINED:
+        default:
+            ret = HAL_ERROR;
+          break;
+        }
+   
+        if ((tmpreg >= UART_LPUART_BRR_MIN) && (tmpreg <= UART_LPUART_BRR_MAX))
+        {
+           huart->Instance->BRR = tmpreg;
+        }
+        else
+        {
+          ret = HAL_ERROR;
+        }
+      }  /*   if ( (tmpreg < (3 * huart->Init.BaudRate) ) || (tmpreg > (4096 * huart->Init.BaudRate) )) */
+    } /* if (tmpreg != 0) */
+  }
+  /* Check UART Over Sampling to set Baud Rate Register */
+  else 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_USART_AUTOBAUDRATE_DETECTION_INSTANCE(huart->Instance));
+    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 = 0;
+
+  /* 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  Handle UART Communication Timeout.
+  * @param  huart UART handle.
+  * @param  Flag Specifies the UART flag to check
+  * @param  Status 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 == 0) || ((HAL_GetTick()-Tickstart) > Timeout))
+      {
+        /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
+        CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE));
+        CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+        huart->gState  = HAL_UART_STATE_READY;
+        huart->RxState = HAL_UART_STATE_READY;
+
+        /* Process Unlocked */
+        __HAL_UNLOCK(huart);
+        return HAL_TIMEOUT;
+      }
+    }
+  }
+  return HAL_OK;
+}
+
+
+/**
+  * @brief  End ongoing Tx transfer on UART peripheral (following error detection or Transmit completion).
+  * @param  huart UART handle.
+  * @retval None
+  */
+static void UART_EndTxTransfer(UART_HandleTypeDef *huart)
+{
+  /* Disable TXEIE and TCIE interrupts */
+  CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
+
+  /* At end of Tx process, restore huart->gState to Ready */
+  huart->gState = HAL_UART_STATE_READY;
+}
+
+
+/**
+  * @brief  End ongoing Rx transfer on UART peripheral (following error detection or Reception completion).
+  * @param  huart UART handle.
+  * @retval None
+  */
+static void UART_EndRxTransfer(UART_HandleTypeDef *huart)
+{
+  /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
+  CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
+  CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
+
+  /* At end of Rx process, restore huart->RxState to Ready */
+  huart->RxState = HAL_UART_STATE_READY;
+}
+
+
+/**
+  * @brief DMA UART transmit process complete callback.
+  * @param hdma DMA handle.
+  * @retval None
+  */
+static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma)
+{
+  UART_HandleTypeDef* huart = (UART_HandleTypeDef*)(hdma->Parent);
+  
+  /* DMA Normal mode */
+  if ( HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC) )
+  {
+    huart->TxXferCount = 0;
+
+    /* Disable the DMA transfer for transmit request by resetting 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*)(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*)(hdma->Parent);
+
+  /* DMA Normal mode */
+  if ( HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC) )
+  {
+    huart->RxXferCount = 0;
+
+    /* 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 resetting 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*)(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*)(hdma->Parent);
+
+  /* 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)) )
+  {
+    huart->TxXferCount = 0;
+    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)) )
+  {
+    huart->RxXferCount = 0;
+    UART_EndRxTransfer(huart);
+  }
+
+  huart->ErrorCode |= HAL_UART_ERROR_DMA;
+  HAL_UART_ErrorCallback(huart);
+}
+
+/**
+  * @brief  DMA UART communication abort callback, when initiated by HAL services on Error
+  *         (To be called at end of DMA Abort procedure following error occurrence).
+  * @param  hdma DMA handle.
+  * @retval None
+  */
+static void UART_DMAAbortOnError(DMA_HandleTypeDef *hdma)
+{
+  UART_HandleTypeDef* huart = (UART_HandleTypeDef*)(hdma->Parent);
+  huart->RxXferCount = 0;
+  huart->TxXferCount = 0;
+
+  HAL_UART_ErrorCallback(huart);
+}
+
+/**
+  * @brief  DMA UART Tx communication abort callback, when initiated by user
+  *         (To be called at end of DMA Tx Abort procedure following user abort request).
+  * @note   When this callback is executed, User Abort complete call back is called only if no
+  *         Abort still ongoing for Rx DMA Handle.
+  * @param  hdma DMA handle.
+  * @retval None
+  */
+static void UART_DMATxAbortCallback(DMA_HandleTypeDef *hdma)
+{
+  UART_HandleTypeDef* huart = (UART_HandleTypeDef* )(hdma->Parent);
+  
+  huart->hdmatx->XferAbortCallback = NULL;
+
+  /* Check if an Abort process is still ongoing */
+  if(huart->hdmarx != NULL)
+  {
+    if(huart->hdmarx->XferAbortCallback != NULL)
+    {
+      return;
+    }
+  }
+  
+  /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */
+  huart->TxXferCount = 0;
+  huart->RxXferCount = 0;
+
+  /* Reset errorCode */
+  huart->ErrorCode = HAL_UART_ERROR_NONE;
+
+  /* Clear the Error flags in the ICR register */
+  __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF);
+
+  /* Restore huart->gState and huart->RxState to Ready */
+  huart->gState  = HAL_UART_STATE_READY;
+  huart->RxState = HAL_UART_STATE_READY;
+
+  /* Call user Abort complete callback */
+  HAL_UART_AbortCpltCallback(huart);
+}
+
+
+/**
+  * @brief  DMA UART Rx communication abort callback, when initiated by user
+  *         (To be called at end of DMA Rx Abort procedure following user abort request).
+  * @note   When this callback is executed, User Abort complete call back is called only if no
+  *         Abort still ongoing for Tx DMA Handle.
+  * @param  hdma DMA handle.
+  * @retval None
+  */
+static void UART_DMARxAbortCallback(DMA_HandleTypeDef *hdma)
+{
+  UART_HandleTypeDef* huart = (UART_HandleTypeDef* )(hdma->Parent);
+  
+  huart->hdmarx->XferAbortCallback = NULL;
+
+  /* Check if an Abort process is still ongoing */
+  if(huart->hdmatx != NULL)
+  {
+    if(huart->hdmatx->XferAbortCallback != NULL)
+    {
+      return;
+    }
+  }
+  
+  /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */
+  huart->TxXferCount = 0;
+  huart->RxXferCount = 0;
+
+  /* Reset errorCode */
+  huart->ErrorCode = HAL_UART_ERROR_NONE;
+
+  /* Clear the Error flags in the ICR register */
+  __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF);
+
+  /* Restore huart->gState and huart->RxState to Ready */
+  huart->gState  = HAL_UART_STATE_READY;
+  huart->RxState = HAL_UART_STATE_READY;
+
+  /* Call user Abort complete callback */
+  HAL_UART_AbortCpltCallback(huart);
+}
+
+
+/**
+  * @brief  DMA UART Tx communication abort callback, when initiated by user by a call to
+  *         HAL_UART_AbortTransmit_IT API (Abort only Tx transfer)
+  *         (This callback is executed at end of DMA Tx Abort procedure following user abort request,
+  *         and leads to user Tx Abort Complete callback execution).
+  * @param  hdma DMA handle.
+  * @retval None
+  */
+static void UART_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma)
+{
+  UART_HandleTypeDef* huart = (UART_HandleTypeDef*)(hdma->Parent);
+
+  huart->TxXferCount = 0;
+
+  /* Restore huart->gState to Ready */
+  huart->gState = HAL_UART_STATE_READY;
+
+  /* Call user Abort complete callback */
+  HAL_UART_AbortTransmitCpltCallback(huart);
+}
+
+/**
+  * @brief  DMA UART Rx communication abort callback, when initiated by user by a call to
+  *         HAL_UART_AbortReceive_IT API (Abort only Rx transfer)
+  *         (This callback is executed at end of DMA Rx Abort procedure following user abort request,
+  *         and leads to user Rx Abort Complete callback execution).
+  * @param  hdma DMA handle.
+  * @retval None
+  */
+static void UART_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma)
+{
+  UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+
+  huart->RxXferCount = 0;
+
+  /* Clear the Error flags in the ICR register */
+  __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF);
+
+  /* Restore huart->RxState to Ready */
+  huart->RxState = HAL_UART_STATE_READY;
+
+  /* Call user Abort complete callback */
+  HAL_UART_AbortReceiveCpltCallback(huart);
+}
+
+/**
+  * @brief  Send an amount of data in interrupt mode.
+  * @note   Function is 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 == 0)
+    {
+      /* 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)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 */
+  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.
+  * @note   Function is 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;
+  uint16_t  uhdata;
+
+  /* Check that a Rx process is ongoing */
+  if(huart->RxState == HAL_UART_STATE_BUSY_RX)
+  {
+    uhdata = (uint16_t) READ_REG(huart->Instance->RDR);
+    if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
+    {
+      tmp = (uint16_t*) huart->pRxBuffPtr ;
+      *tmp = (uint16_t)(uhdata & uhMask);
+      huart->pRxBuffPtr +=2;
+    }
+    else
+    {
+      *huart->pRxBuffPtr++ = (uint8_t)(uhdata & (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;
+  }
+}
+
+/**
+  * @}
+  */
+
+#endif /* HAL_UART_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/