text: /**
    ******************************************************************************
    * @file    stm32f4xx_ll_usart.h
    * @author  MCD Application Team
    * @brief   Header file of USART LL module.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
    *
    * Redistribution and use in source and binary forms, with or without modification,
    * are permitted provided that the following conditions are met:
    *   1. Redistributions of source code must retain the above copyright notice,
    *      this list of conditions and the following disclaimer.
    *   2. Redistributions in binary form must reproduce the above copyright notice,
    *      this list of conditions and the following disclaimer in the documentation
    *      and/or other materials provided with the distribution.
    *   3. Neither the name of STMicroelectronics nor the names of its contributors
    *      may be used to endorse or promote products derived from this software
    *      without specific prior written permission.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
    * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
    * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    *
    ******************************************************************************
    */
  
  /* Define to prevent recursive inclusion -------------------------------------*/
  #ifndef __STM32F4xx_LL_USART_H
  #define __STM32F4xx_LL_USART_H
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /* Includes ------------------------------------------------------------------*/
  #include "stm32f4xx.h"
  
  /** @addtogroup STM32F4xx_LL_Driver
    * @{
    */
  
  #if defined (USART1) || defined (USART2) || defined (USART3) || defined (USART6) || defined (UART4) || defined (UART5) || defined (UART7) || defined (UART8) || defined (UART9) || defined (UART10)
  
  /** @defgroup USART_LL USART
    * @{
    */
  
  /* Private types -------------------------------------------------------------*/
  /* Private variables ---------------------------------------------------------*/
  
  /* Private constants ---------------------------------------------------------*/
  /** @defgroup USART_LL_Private_Constants USART Private Constants
    * @{
    */
  
  /* Defines used for the bit position in the register and perform offsets*/
  #define USART_POSITION_GTPR_GT                  USART_GTPR_GT_Pos
  /**
    * @}
    */
  
  /* Private macros ------------------------------------------------------------*/
  #if defined(USE_FULL_LL_DRIVER)
  /** @defgroup USART_LL_Private_Macros USART Private Macros
    * @{
    */
  /**
    * @}
    */
  #endif /*USE_FULL_LL_DRIVER*/
  
  /* Exported types ------------------------------------------------------------*/
  #if defined(USE_FULL_LL_DRIVER)
  /** @defgroup USART_LL_ES_INIT USART Exported Init structures
    * @{
    */
  
  /**
    * @brief LL USART Init Structure definition
    */
  typedef struct
  {
    uint32_t BaudRate;                  /*!< This field defines expected Usart communication baud rate.
  
                                             This feature can be modified afterwards using unitary function @ref LL_USART_SetBaudRate().*/
  
    uint32_t DataWidth;                 /*!< Specifies the number of data bits transmitted or received in a frame.
                                             This parameter can be a value of @ref USART_LL_EC_DATAWIDTH.
  
                                             This feature can be modified afterwards using unitary function @ref LL_USART_SetDataWidth().*/
  
    uint32_t StopBits;                  /*!< Specifies the number of stop bits transmitted.
                                             This parameter can be a value of @ref USART_LL_EC_STOPBITS.
  
                                             This feature can be modified afterwards using unitary function @ref LL_USART_SetStopBitsLength().*/
  
    uint32_t Parity;                    /*!< Specifies the parity mode.
                                             This parameter can be a value of @ref USART_LL_EC_PARITY.
  
                                             This feature can be modified afterwards using unitary function @ref LL_USART_SetParity().*/
  
    uint32_t TransferDirection;         /*!< Specifies whether the Receive and/or Transmit mode is enabled or disabled.
                                             This parameter can be a value of @ref USART_LL_EC_DIRECTION.
  
                                             This feature can be modified afterwards using unitary function @ref LL_USART_SetTransferDirection().*/
  
    uint32_t HardwareFlowControl;       /*!< Specifies whether the hardware flow control mode is enabled or disabled.
                                             This parameter can be a value of @ref USART_LL_EC_HWCONTROL.
  
                                             This feature can be modified afterwards using unitary function @ref LL_USART_SetHWFlowCtrl().*/
  
    uint32_t OverSampling;              /*!< Specifies whether USART oversampling mode is 16 or 8.
                                             This parameter can be a value of @ref USART_LL_EC_OVERSAMPLING.
  
                                             This feature can be modified afterwards using unitary function @ref LL_USART_SetOverSampling().*/
  
  } LL_USART_InitTypeDef;
  
  /**
    * @brief LL USART Clock Init Structure definition
    */
  typedef struct
  {
    uint32_t ClockOutput;               /*!< Specifies whether the USART clock is enabled or disabled.
                                             This parameter can be a value of @ref USART_LL_EC_CLOCK.
  
                                             USART HW configuration can be modified afterwards using unitary functions
                                             @ref LL_USART_EnableSCLKOutput() or @ref LL_USART_DisableSCLKOutput().
                                             For more details, refer to description of this function. */
  
    uint32_t ClockPolarity;             /*!< Specifies the steady state of the serial clock.
                                             This parameter can be a value of @ref USART_LL_EC_POLARITY.
  
                                             USART HW configuration can be modified afterwards using unitary functions @ref LL_USART_SetClockPolarity().
                                             For more details, refer to description of this function. */
  
    uint32_t ClockPhase;                /*!< Specifies the clock transition on which the bit capture is made.
                                             This parameter can be a value of @ref USART_LL_EC_PHASE.
  
                                             USART HW configuration can be modified afterwards using unitary functions @ref LL_USART_SetClockPhase().
                                             For more details, refer to description of this function. */
  
    uint32_t LastBitClockPulse;         /*!< Specifies whether the clock pulse corresponding to the last transmitted
                                             data bit (MSB) has to be output on the SCLK pin in synchronous mode.
                                             This parameter can be a value of @ref USART_LL_EC_LASTCLKPULSE.
  
                                             USART HW configuration can be modified afterwards using unitary functions @ref LL_USART_SetLastClkPulseOutput().
                                             For more details, refer to description of this function. */
  
  } LL_USART_ClockInitTypeDef;
  
  /**
    * @}
    */
  #endif /* USE_FULL_LL_DRIVER */
  
  /* Exported constants --------------------------------------------------------*/
  /** @defgroup USART_LL_Exported_Constants USART Exported Constants
    * @{
    */
  
  /** @defgroup USART_LL_EC_GET_FLAG Get Flags Defines
    * @brief    Flags defines which can be used with LL_USART_ReadReg function
    * @{
    */
  #define LL_USART_SR_PE                          USART_SR_PE                   /*!< Parity error flag */
  #define LL_USART_SR_FE                          USART_SR_FE                   /*!< Framing error flag */
  #define LL_USART_SR_NE                          USART_SR_NE                   /*!< Noise detected flag */
  #define LL_USART_SR_ORE                         USART_SR_ORE                  /*!< Overrun error flag */
  #define LL_USART_SR_IDLE                        USART_SR_IDLE                 /*!< Idle line detected flag */
  #define LL_USART_SR_RXNE                        USART_SR_RXNE                 /*!< Read data register not empty flag */
  #define LL_USART_SR_TC                          USART_SR_TC                   /*!< Transmission complete flag */
  #define LL_USART_SR_TXE                         USART_SR_TXE                  /*!< Transmit data register empty flag */
  #define LL_USART_SR_LBD                         USART_SR_LBD                  /*!< LIN break detection flag */
  #define LL_USART_SR_CTS                         USART_SR_CTS                  /*!< CTS flag */
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EC_IT IT Defines
    * @brief    IT defines which can be used with LL_USART_ReadReg and  LL_USART_WriteReg functions
    * @{
    */
  #define LL_USART_CR1_IDLEIE                     USART_CR1_IDLEIE              /*!< IDLE interrupt enable */
  #define LL_USART_CR1_RXNEIE                     USART_CR1_RXNEIE              /*!< Read data register not empty interrupt enable */
  #define LL_USART_CR1_TCIE                       USART_CR1_TCIE                /*!< Transmission complete interrupt enable */
  #define LL_USART_CR1_TXEIE                      USART_CR1_TXEIE               /*!< Transmit data register empty interrupt enable */
  #define LL_USART_CR1_PEIE                       USART_CR1_PEIE                /*!< Parity error */
  #define LL_USART_CR2_LBDIE                      USART_CR2_LBDIE               /*!< LIN break detection interrupt enable */
  #define LL_USART_CR3_EIE                        USART_CR3_EIE                 /*!< Error interrupt enable */
  #define LL_USART_CR3_CTSIE                      USART_CR3_CTSIE               /*!< CTS interrupt enable */
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EC_DIRECTION Communication Direction
    * @{
    */
  #define LL_USART_DIRECTION_NONE                 0x00000000U                        /*!< Transmitter and Receiver are disabled */
  #define LL_USART_DIRECTION_RX                   USART_CR1_RE                       /*!< Transmitter is disabled and Receiver is enabled */
  #define LL_USART_DIRECTION_TX                   USART_CR1_TE                       /*!< Transmitter is enabled and Receiver is disabled */
  #define LL_USART_DIRECTION_TX_RX                (USART_CR1_TE |USART_CR1_RE)       /*!< Transmitter and Receiver are enabled */
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EC_PARITY Parity Control
    * @{
    */ 
  #define LL_USART_PARITY_NONE                    0x00000000U                          /*!< Parity control disabled */
  #define LL_USART_PARITY_EVEN                    USART_CR1_PCE                        /*!< Parity control enabled and Even Parity is selected */
  #define LL_USART_PARITY_ODD                     (USART_CR1_PCE | USART_CR1_PS)       /*!< Parity control enabled and Odd Parity is selected */
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EC_WAKEUP Wakeup
    * @{
    */
  #define LL_USART_WAKEUP_IDLELINE                0x00000000U           /*!<  USART wake up from Mute mode on Idle Line */
  #define LL_USART_WAKEUP_ADDRESSMARK             USART_CR1_WAKE        /*!<  USART wake up from Mute mode on Address Mark */
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EC_DATAWIDTH Datawidth
    * @{
    */
  #define LL_USART_DATAWIDTH_8B                   0x00000000U             /*!< 8 bits word length : Start bit, 8 data bits, n stop bits */
  #define LL_USART_DATAWIDTH_9B                   USART_CR1_M             /*!< 9 bits word length : Start bit, 9 data bits, n stop bits */
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EC_OVERSAMPLING Oversampling
    * @{
    */
  #define LL_USART_OVERSAMPLING_16                0x00000000U            /*!< Oversampling by 16 */
  #define LL_USART_OVERSAMPLING_8                 USART_CR1_OVER8        /*!< Oversampling by 8 */
  /**
    * @}
    */
  
  #if defined(USE_FULL_LL_DRIVER)
  /** @defgroup USART_LL_EC_CLOCK Clock Signal
    * @{
    */
  
  #define LL_USART_CLOCK_DISABLE                  0x00000000U            /*!< Clock signal not provided */
  #define LL_USART_CLOCK_ENABLE                   USART_CR2_CLKEN        /*!< Clock signal provided */
  /**
    * @}
    */
  #endif /*USE_FULL_LL_DRIVER*/
  
  /** @defgroup USART_LL_EC_LASTCLKPULSE Last Clock Pulse
    * @{
    */
  #define LL_USART_LASTCLKPULSE_NO_OUTPUT         0x00000000U           /*!< The clock pulse of the last data bit is not output to the SCLK pin */
  #define LL_USART_LASTCLKPULSE_OUTPUT            USART_CR2_LBCL        /*!< The clock pulse of the last data bit is output to the SCLK pin */
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EC_PHASE Clock Phase
    * @{
    */
  #define LL_USART_PHASE_1EDGE                    0x00000000U           /*!< The first clock transition is the first data capture edge */
  #define LL_USART_PHASE_2EDGE                    USART_CR2_CPHA        /*!< The second clock transition is the first data capture edge */
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EC_POLARITY Clock Polarity
    * @{
    */
  #define LL_USART_POLARITY_LOW                   0x00000000U           /*!< Steady low value on SCLK pin outside transmission window*/
  #define LL_USART_POLARITY_HIGH                  USART_CR2_CPOL        /*!< Steady high value on SCLK pin outside transmission window */
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EC_STOPBITS Stop Bits
    * @{
    */
  #define LL_USART_STOPBITS_0_5                   USART_CR2_STOP_0                           /*!< 0.5 stop bit */
  #define LL_USART_STOPBITS_1                     0x00000000U                                /*!< 1 stop bit */
  #define LL_USART_STOPBITS_1_5                   (USART_CR2_STOP_0 | USART_CR2_STOP_1)      /*!< 1.5 stop bits */
  #define LL_USART_STOPBITS_2                     USART_CR2_STOP_1                           /*!< 2 stop bits */
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EC_HWCONTROL Hardware Control
    * @{
    */
  #define LL_USART_HWCONTROL_NONE                 0x00000000U                          /*!< CTS and RTS hardware flow control disabled */
  #define LL_USART_HWCONTROL_RTS                  USART_CR3_RTSE                       /*!< RTS output enabled, data is only requested when there is space in the receive buffer */
  #define LL_USART_HWCONTROL_CTS                  USART_CR3_CTSE                       /*!< CTS mode enabled, data is only transmitted when the nCTS input is asserted (tied to 0) */
  #define LL_USART_HWCONTROL_RTS_CTS              (USART_CR3_RTSE | USART_CR3_CTSE)    /*!< CTS and RTS hardware flow control enabled */
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EC_IRDA_POWER IrDA Power
    * @{
    */
  #define LL_USART_IRDA_POWER_NORMAL              0x00000000U           /*!< IrDA normal power mode */
  #define LL_USART_IRDA_POWER_LOW                 USART_CR3_IRLP        /*!< IrDA low power mode */
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EC_LINBREAK_DETECT LIN Break Detection Length
    * @{
    */
  #define LL_USART_LINBREAK_DETECT_10B            0x00000000U           /*!< 10-bit break detection method selected */
  #define LL_USART_LINBREAK_DETECT_11B            USART_CR2_LBDL        /*!< 11-bit break detection method selected */
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /* Exported macro ------------------------------------------------------------*/
  /** @defgroup USART_LL_Exported_Macros USART Exported Macros
    * @{
    */
  
  /** @defgroup USART_LL_EM_WRITE_READ Common Write and read registers Macros
    * @{
    */
  
  /**
    * @brief  Write a value in USART register
    * @param  __INSTANCE__ USART Instance
    * @param  __REG__ Register to be written
    * @param  __VALUE__ Value to be written in the register
    * @retval None
    */
  #define LL_USART_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
  
  /**
    * @brief  Read a value in USART register
    * @param  __INSTANCE__ USART Instance
    * @param  __REG__ Register to be read
    * @retval Register value
    */
  #define LL_USART_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EM_Exported_Macros_Helper Exported_Macros_Helper
    * @{
    */
  
  /**
    * @brief  Compute USARTDIV value according to Peripheral Clock and
    *         expected Baud Rate in 8 bits sampling mode (32 bits value of USARTDIV is returned)
    * @param  __PERIPHCLK__ Peripheral Clock frequency used for USART instance
    * @param  __BAUDRATE__ Baud rate value to achieve
    * @retval USARTDIV value to be used for BRR register filling in OverSampling_8 case
    */
  #define __LL_USART_DIV_SAMPLING8_100(__PERIPHCLK__, __BAUDRATE__)      (((__PERIPHCLK__)*25)/(2*(__BAUDRATE__)))
  #define __LL_USART_DIVMANT_SAMPLING8(__PERIPHCLK__, __BAUDRATE__)      (__LL_USART_DIV_SAMPLING8_100((__PERIPHCLK__), (__BAUDRATE__))/100)
  #define __LL_USART_DIVFRAQ_SAMPLING8(__PERIPHCLK__, __BAUDRATE__)      (((__LL_USART_DIV_SAMPLING8_100((__PERIPHCLK__), (__BAUDRATE__)) - (__LL_USART_DIVMANT_SAMPLING8((__PERIPHCLK__), (__BAUDRATE__)) * 100)) * 8 + 50) / 100)
  /* UART BRR = mantissa + overflow + fraction
              = (UART DIVMANT << 4) + ((UART DIVFRAQ & 0xF8) << 1) + (UART DIVFRAQ & 0x07) */
  #define __LL_USART_DIV_SAMPLING8(__PERIPHCLK__, __BAUDRATE__)             (((__LL_USART_DIVMANT_SAMPLING8((__PERIPHCLK__), (__BAUDRATE__)) << 4) + \
                                                                             ((__LL_USART_DIVFRAQ_SAMPLING8((__PERIPHCLK__), (__BAUDRATE__)) & 0xF8) << 1)) + \
                                                                             (__LL_USART_DIVFRAQ_SAMPLING8((__PERIPHCLK__), (__BAUDRATE__)) & 0x07))
  
  /**
    * @brief  Compute USARTDIV value according to Peripheral Clock and
    *         expected Baud Rate in 16 bits sampling mode (32 bits value of USARTDIV is returned)
    * @param  __PERIPHCLK__ Peripheral Clock frequency used for USART instance
    * @param  __BAUDRATE__ Baud rate value to achieve
    * @retval USARTDIV value to be used for BRR register filling in OverSampling_16 case
    */
  #define __LL_USART_DIV_SAMPLING16_100(__PERIPHCLK__, __BAUDRATE__)     (((__PERIPHCLK__)*25)/(4*(__BAUDRATE__)))
  #define __LL_USART_DIVMANT_SAMPLING16(__PERIPHCLK__, __BAUDRATE__)     (__LL_USART_DIV_SAMPLING16_100((__PERIPHCLK__), (__BAUDRATE__))/100)
  #define __LL_USART_DIVFRAQ_SAMPLING16(__PERIPHCLK__, __BAUDRATE__)     (((__LL_USART_DIV_SAMPLING16_100((__PERIPHCLK__), (__BAUDRATE__)) - (__LL_USART_DIVMANT_SAMPLING16((__PERIPHCLK__), (__BAUDRATE__)) * 100)) * 16 + 50) / 100)
  /* USART BRR = mantissa + overflow + fraction
              = (USART DIVMANT << 4) + (USART DIVFRAQ & 0xF0) + (USART DIVFRAQ & 0x0F) */
  #define __LL_USART_DIV_SAMPLING16(__PERIPHCLK__, __BAUDRATE__)            (((__LL_USART_DIVMANT_SAMPLING16((__PERIPHCLK__), (__BAUDRATE__)) << 4) + \
                                                                             (__LL_USART_DIVFRAQ_SAMPLING16((__PERIPHCLK__), (__BAUDRATE__)) & 0xF0)) + \
                                                                             (__LL_USART_DIVFRAQ_SAMPLING16((__PERIPHCLK__), (__BAUDRATE__)) & 0x0F))
  
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /* Exported functions --------------------------------------------------------*/
  
  /** @defgroup USART_LL_Exported_Functions USART Exported Functions
    * @{
    */
  
  /** @defgroup USART_LL_EF_Configuration Configuration functions
    * @{
    */
  
  /**
    * @brief  USART Enable
    * @rmtoll CR1          UE            LL_USART_Enable
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_Enable(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR1, USART_CR1_UE);
  }
  
  /**
    * @brief  USART Disable (all USART prescalers and outputs are disabled)
    * @note   When USART is disabled, USART prescalers and outputs are stopped immediately,
    *         and current operations are discarded. The configuration of the USART is kept, but all the status
    *         flags, in the USARTx_SR are set to their default values.
    * @rmtoll CR1          UE            LL_USART_Disable
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_Disable(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR1, USART_CR1_UE);
  }
  
  /**
    * @brief  Indicate if USART is enabled
    * @rmtoll CR1          UE            LL_USART_IsEnabled
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabled(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR1, USART_CR1_UE) == (USART_CR1_UE));
  }
  
  /**
    * @brief  Receiver Enable (Receiver is enabled and begins searching for a start bit)
    * @rmtoll CR1          RE            LL_USART_EnableDirectionRx
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableDirectionRx(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR1, USART_CR1_RE);
  }
  
  /**
    * @brief  Receiver Disable
    * @rmtoll CR1          RE            LL_USART_DisableDirectionRx
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableDirectionRx(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR1, USART_CR1_RE);
  }
  
  /**
    * @brief  Transmitter Enable
    * @rmtoll CR1          TE            LL_USART_EnableDirectionTx
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableDirectionTx(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR1, USART_CR1_TE);
  }
  
  /**
    * @brief  Transmitter Disable
    * @rmtoll CR1          TE            LL_USART_DisableDirectionTx
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableDirectionTx(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR1, USART_CR1_TE);
  }
  
  /**
    * @brief  Configure simultaneously enabled/disabled states
    *         of Transmitter and Receiver
    * @rmtoll CR1          RE            LL_USART_SetTransferDirection\n
    *         CR1          TE            LL_USART_SetTransferDirection
    * @param  USARTx USART Instance
    * @param  TransferDirection This parameter can be one of the following values:
    *         @arg @ref LL_USART_DIRECTION_NONE
    *         @arg @ref LL_USART_DIRECTION_RX
    *         @arg @ref LL_USART_DIRECTION_TX
    *         @arg @ref LL_USART_DIRECTION_TX_RX
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetTransferDirection(USART_TypeDef *USARTx, uint32_t TransferDirection)
  {
    MODIFY_REG(USARTx->CR1, USART_CR1_RE | USART_CR1_TE, TransferDirection);
  }
  
  /**
    * @brief  Return enabled/disabled states of Transmitter and Receiver
    * @rmtoll CR1          RE            LL_USART_GetTransferDirection\n
    *         CR1          TE            LL_USART_GetTransferDirection
    * @param  USARTx USART Instance
    * @retval Returned value can be one of the following values:
    *         @arg @ref LL_USART_DIRECTION_NONE
    *         @arg @ref LL_USART_DIRECTION_RX
    *         @arg @ref LL_USART_DIRECTION_TX
    *         @arg @ref LL_USART_DIRECTION_TX_RX
    */
  __STATIC_INLINE uint32_t LL_USART_GetTransferDirection(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->CR1, USART_CR1_RE | USART_CR1_TE));
  }
  
  /**
    * @brief  Configure Parity (enabled/disabled and parity mode if enabled).
    * @note   This function selects if hardware parity control (generation and detection) is enabled or disabled.
    *         When the parity control is enabled (Odd or Even), computed parity bit is inserted at the MSB position
    *         (9th or 8th bit depending on data width) and parity is checked on the received data.
    * @rmtoll CR1          PS            LL_USART_SetParity\n
    *         CR1          PCE           LL_USART_SetParity
    * @param  USARTx USART Instance
    * @param  Parity This parameter can be one of the following values:
    *         @arg @ref LL_USART_PARITY_NONE
    *         @arg @ref LL_USART_PARITY_EVEN
    *         @arg @ref LL_USART_PARITY_ODD
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetParity(USART_TypeDef *USARTx, uint32_t Parity)
  {
    MODIFY_REG(USARTx->CR1, USART_CR1_PS | USART_CR1_PCE, Parity);
  }
  
  /**
    * @brief  Return Parity configuration (enabled/disabled and parity mode if enabled)
    * @rmtoll CR1          PS            LL_USART_GetParity\n
    *         CR1          PCE           LL_USART_GetParity
    * @param  USARTx USART Instance
    * @retval Returned value can be one of the following values:
    *         @arg @ref LL_USART_PARITY_NONE
    *         @arg @ref LL_USART_PARITY_EVEN
    *         @arg @ref LL_USART_PARITY_ODD
    */
  __STATIC_INLINE uint32_t LL_USART_GetParity(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->CR1, USART_CR1_PS | USART_CR1_PCE));
  }
  
  /**
    * @brief  Set Receiver Wake Up method from Mute mode.
    * @rmtoll CR1          WAKE          LL_USART_SetWakeUpMethod
    * @param  USARTx USART Instance
    * @param  Method This parameter can be one of the following values:
    *         @arg @ref LL_USART_WAKEUP_IDLELINE
    *         @arg @ref LL_USART_WAKEUP_ADDRESSMARK
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetWakeUpMethod(USART_TypeDef *USARTx, uint32_t Method)
  {
    MODIFY_REG(USARTx->CR1, USART_CR1_WAKE, Method);
  }
  
  /**
    * @brief  Return Receiver Wake Up method from Mute mode
    * @rmtoll CR1          WAKE          LL_USART_GetWakeUpMethod
    * @param  USARTx USART Instance
    * @retval Returned value can be one of the following values:
    *         @arg @ref LL_USART_WAKEUP_IDLELINE
    *         @arg @ref LL_USART_WAKEUP_ADDRESSMARK
    */
  __STATIC_INLINE uint32_t LL_USART_GetWakeUpMethod(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->CR1, USART_CR1_WAKE));
  }
  
  /**
    * @brief  Set Word length (i.e. nb of data bits, excluding start and stop bits)
    * @rmtoll CR1          M             LL_USART_SetDataWidth
    * @param  USARTx USART Instance
    * @param  DataWidth This parameter can be one of the following values:
    *         @arg @ref LL_USART_DATAWIDTH_8B
    *         @arg @ref LL_USART_DATAWIDTH_9B
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetDataWidth(USART_TypeDef *USARTx, uint32_t DataWidth)
  {
    MODIFY_REG(USARTx->CR1, USART_CR1_M, DataWidth);
  }
  
  /**
    * @brief  Return Word length (i.e. nb of data bits, excluding start and stop bits)
    * @rmtoll CR1          M             LL_USART_GetDataWidth
    * @param  USARTx USART Instance
    * @retval Returned value can be one of the following values:
    *         @arg @ref LL_USART_DATAWIDTH_8B
    *         @arg @ref LL_USART_DATAWIDTH_9B
    */
  __STATIC_INLINE uint32_t LL_USART_GetDataWidth(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->CR1, USART_CR1_M));
  }
  
  /**
    * @brief  Set Oversampling to 8-bit or 16-bit mode
    * @rmtoll CR1          OVER8         LL_USART_SetOverSampling
    * @param  USARTx USART Instance
    * @param  OverSampling This parameter can be one of the following values:
    *         @arg @ref LL_USART_OVERSAMPLING_16
    *         @arg @ref LL_USART_OVERSAMPLING_8
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetOverSampling(USART_TypeDef *USARTx, uint32_t OverSampling)
  {
    MODIFY_REG(USARTx->CR1, USART_CR1_OVER8, OverSampling);
  }
  
  /**
    * @brief  Return Oversampling mode
    * @rmtoll CR1          OVER8         LL_USART_GetOverSampling
    * @param  USARTx USART Instance
    * @retval Returned value can be one of the following values:
    *         @arg @ref LL_USART_OVERSAMPLING_16
    *         @arg @ref LL_USART_OVERSAMPLING_8
    */
  __STATIC_INLINE uint32_t LL_USART_GetOverSampling(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->CR1, USART_CR1_OVER8));
  }
  
  /**
    * @brief  Configure if Clock pulse of the last data bit is output to the SCLK pin or not
    * @note   Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not
    *         Synchronous mode is supported by the USARTx instance.
    * @rmtoll CR2          LBCL          LL_USART_SetLastClkPulseOutput
    * @param  USARTx USART Instance
    * @param  LastBitClockPulse This parameter can be one of the following values:
    *         @arg @ref LL_USART_LASTCLKPULSE_NO_OUTPUT
    *         @arg @ref LL_USART_LASTCLKPULSE_OUTPUT
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetLastClkPulseOutput(USART_TypeDef *USARTx, uint32_t LastBitClockPulse)
  {
    MODIFY_REG(USARTx->CR2, USART_CR2_LBCL, LastBitClockPulse);
  }
  
  /**
    * @brief  Retrieve Clock pulse of the last data bit output configuration
    *         (Last bit Clock pulse output to the SCLK pin or not)
    * @note   Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not
    *         Synchronous mode is supported by the USARTx instance.
    * @rmtoll CR2          LBCL          LL_USART_GetLastClkPulseOutput
    * @param  USARTx USART Instance
    * @retval Returned value can be one of the following values:
    *         @arg @ref LL_USART_LASTCLKPULSE_NO_OUTPUT
    *         @arg @ref LL_USART_LASTCLKPULSE_OUTPUT
    */
  __STATIC_INLINE uint32_t LL_USART_GetLastClkPulseOutput(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->CR2, USART_CR2_LBCL));
  }
  
  /**
    * @brief  Select the phase of the clock output on the SCLK pin in synchronous mode
    * @note   Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not
    *         Synchronous mode is supported by the USARTx instance.
    * @rmtoll CR2          CPHA          LL_USART_SetClockPhase
    * @param  USARTx USART Instance
    * @param  ClockPhase This parameter can be one of the following values:
    *         @arg @ref LL_USART_PHASE_1EDGE
    *         @arg @ref LL_USART_PHASE_2EDGE
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetClockPhase(USART_TypeDef *USARTx, uint32_t ClockPhase)
  {
    MODIFY_REG(USARTx->CR2, USART_CR2_CPHA, ClockPhase);
  }
  
  /**
    * @brief  Return phase of the clock output on the SCLK pin in synchronous mode
    * @note   Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not
    *         Synchronous mode is supported by the USARTx instance.
    * @rmtoll CR2          CPHA          LL_USART_GetClockPhase
    * @param  USARTx USART Instance
    * @retval Returned value can be one of the following values:
    *         @arg @ref LL_USART_PHASE_1EDGE
    *         @arg @ref LL_USART_PHASE_2EDGE
    */
  __STATIC_INLINE uint32_t LL_USART_GetClockPhase(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->CR2, USART_CR2_CPHA));
  }
  
  /**
    * @brief  Select the polarity of the clock output on the SCLK pin in synchronous mode
    * @note   Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not
    *         Synchronous mode is supported by the USARTx instance.
    * @rmtoll CR2          CPOL          LL_USART_SetClockPolarity
    * @param  USARTx USART Instance
    * @param  ClockPolarity This parameter can be one of the following values:
    *         @arg @ref LL_USART_POLARITY_LOW
    *         @arg @ref LL_USART_POLARITY_HIGH
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetClockPolarity(USART_TypeDef *USARTx, uint32_t ClockPolarity)
  {
    MODIFY_REG(USARTx->CR2, USART_CR2_CPOL, ClockPolarity);
  }
  
  /**
    * @brief  Return polarity of the clock output on the SCLK pin in synchronous mode
    * @note   Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not
    *         Synchronous mode is supported by the USARTx instance.
    * @rmtoll CR2          CPOL          LL_USART_GetClockPolarity
    * @param  USARTx USART Instance
    * @retval Returned value can be one of the following values:
    *         @arg @ref LL_USART_POLARITY_LOW
    *         @arg @ref LL_USART_POLARITY_HIGH
    */
  __STATIC_INLINE uint32_t LL_USART_GetClockPolarity(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->CR2, USART_CR2_CPOL));
  }
  
  /**
    * @brief  Configure Clock signal format (Phase Polarity and choice about output of last bit clock pulse)
    * @note   Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not
    *         Synchronous mode is supported by the USARTx instance.
    * @note   Call of this function is equivalent to following function call sequence :
    *         - Clock Phase configuration using @ref LL_USART_SetClockPhase() function
    *         - Clock Polarity configuration using @ref LL_USART_SetClockPolarity() function
    *         - Output of Last bit Clock pulse configuration using @ref LL_USART_SetLastClkPulseOutput() function
    * @rmtoll CR2          CPHA          LL_USART_ConfigClock\n
    *         CR2          CPOL          LL_USART_ConfigClock\n
    *         CR2          LBCL          LL_USART_ConfigClock
    * @param  USARTx USART Instance
    * @param  Phase This parameter can be one of the following values:
    *         @arg @ref LL_USART_PHASE_1EDGE
    *         @arg @ref LL_USART_PHASE_2EDGE
    * @param  Polarity This parameter can be one of the following values:
    *         @arg @ref LL_USART_POLARITY_LOW
    *         @arg @ref LL_USART_POLARITY_HIGH
    * @param  LBCPOutput This parameter can be one of the following values:
    *         @arg @ref LL_USART_LASTCLKPULSE_NO_OUTPUT
    *         @arg @ref LL_USART_LASTCLKPULSE_OUTPUT
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ConfigClock(USART_TypeDef *USARTx, uint32_t Phase, uint32_t Polarity, uint32_t LBCPOutput)
  {
    MODIFY_REG(USARTx->CR2, USART_CR2_CPHA | USART_CR2_CPOL | USART_CR2_LBCL, Phase | Polarity | LBCPOutput);
  }
  
  /**
    * @brief  Enable Clock output on SCLK pin
    * @note   Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not
    *         Synchronous mode is supported by the USARTx instance.
    * @rmtoll CR2          CLKEN         LL_USART_EnableSCLKOutput
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableSCLKOutput(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR2, USART_CR2_CLKEN);
  }
  
  /**
    * @brief  Disable Clock output on SCLK pin
    * @note   Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not
    *         Synchronous mode is supported by the USARTx instance.
    * @rmtoll CR2          CLKEN         LL_USART_DisableSCLKOutput
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableSCLKOutput(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR2, USART_CR2_CLKEN);
  }
  
  /**
    * @brief  Indicate if Clock output on SCLK pin is enabled
    * @note   Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not
    *         Synchronous mode is supported by the USARTx instance.
    * @rmtoll CR2          CLKEN         LL_USART_IsEnabledSCLKOutput
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledSCLKOutput(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR2, USART_CR2_CLKEN) == (USART_CR2_CLKEN));
  }
  
  /**
    * @brief  Set the length of the stop bits
    * @rmtoll CR2          STOP          LL_USART_SetStopBitsLength
    * @param  USARTx USART Instance
    * @param  StopBits This parameter can be one of the following values:
    *         @arg @ref LL_USART_STOPBITS_0_5
    *         @arg @ref LL_USART_STOPBITS_1
    *         @arg @ref LL_USART_STOPBITS_1_5
    *         @arg @ref LL_USART_STOPBITS_2
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetStopBitsLength(USART_TypeDef *USARTx, uint32_t StopBits)
  {
    MODIFY_REG(USARTx->CR2, USART_CR2_STOP, StopBits);
  }
  
  /**
    * @brief  Retrieve the length of the stop bits
    * @rmtoll CR2          STOP          LL_USART_GetStopBitsLength
    * @param  USARTx USART Instance
    * @retval Returned value can be one of the following values:
    *         @arg @ref LL_USART_STOPBITS_0_5
    *         @arg @ref LL_USART_STOPBITS_1
    *         @arg @ref LL_USART_STOPBITS_1_5
    *         @arg @ref LL_USART_STOPBITS_2
    */
  __STATIC_INLINE uint32_t LL_USART_GetStopBitsLength(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->CR2, USART_CR2_STOP));
  }
  
  /**
    * @brief  Configure Character frame format (Datawidth, Parity control, Stop Bits)
    * @note   Call of this function is equivalent to following function call sequence :
    *         - Data Width configuration using @ref LL_USART_SetDataWidth() function
    *         - Parity Control and mode configuration using @ref LL_USART_SetParity() function
    *         - Stop bits configuration using @ref LL_USART_SetStopBitsLength() function
    * @rmtoll CR1          PS            LL_USART_ConfigCharacter\n
    *         CR1          PCE           LL_USART_ConfigCharacter\n
    *         CR1          M             LL_USART_ConfigCharacter\n
    *         CR2          STOP          LL_USART_ConfigCharacter
    * @param  USARTx USART Instance
    * @param  DataWidth This parameter can be one of the following values:
    *         @arg @ref LL_USART_DATAWIDTH_8B
    *         @arg @ref LL_USART_DATAWIDTH_9B
    * @param  Parity This parameter can be one of the following values:
    *         @arg @ref LL_USART_PARITY_NONE
    *         @arg @ref LL_USART_PARITY_EVEN
    *         @arg @ref LL_USART_PARITY_ODD
    * @param  StopBits This parameter can be one of the following values:
    *         @arg @ref LL_USART_STOPBITS_0_5
    *         @arg @ref LL_USART_STOPBITS_1
    *         @arg @ref LL_USART_STOPBITS_1_5
    *         @arg @ref LL_USART_STOPBITS_2
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ConfigCharacter(USART_TypeDef *USARTx, uint32_t DataWidth, uint32_t Parity,
                                                uint32_t StopBits)
  {
    MODIFY_REG(USARTx->CR1, USART_CR1_PS | USART_CR1_PCE | USART_CR1_M, Parity | DataWidth);
    MODIFY_REG(USARTx->CR2, USART_CR2_STOP, StopBits);
  }
  
  /**
    * @brief  Set Address of the USART node.
    * @note   This is used in multiprocessor communication during Mute mode or Stop mode,
    *         for wake up with address mark detection.
    * @rmtoll CR2          ADD           LL_USART_SetNodeAddress
    * @param  USARTx USART Instance
    * @param  NodeAddress 4 bit Address of the USART node.
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetNodeAddress(USART_TypeDef *USARTx, uint32_t NodeAddress)
  {
    MODIFY_REG(USARTx->CR2, USART_CR2_ADD, (NodeAddress & USART_CR2_ADD));
  }
  
  /**
    * @brief  Return 4 bit Address of the USART node as set in ADD field of CR2.
    * @note   only 4bits (b3-b0) of returned value are relevant (b31-b4 are not relevant)
    * @rmtoll CR2          ADD           LL_USART_GetNodeAddress
    * @param  USARTx USART Instance
    * @retval Address of the USART node (Value between Min_Data=0 and Max_Data=255)
    */
  __STATIC_INLINE uint32_t LL_USART_GetNodeAddress(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->CR2, USART_CR2_ADD));
  }
  
  /**
    * @brief  Enable RTS HW Flow Control
    * @note   Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not
    *         Hardware Flow control feature is supported by the USARTx instance.
    * @rmtoll CR3          RTSE          LL_USART_EnableRTSHWFlowCtrl
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableRTSHWFlowCtrl(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR3, USART_CR3_RTSE);
  }
  
  /**
    * @brief  Disable RTS HW Flow Control
    * @note   Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not
    *         Hardware Flow control feature is supported by the USARTx instance.
    * @rmtoll CR3          RTSE          LL_USART_DisableRTSHWFlowCtrl
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableRTSHWFlowCtrl(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR3, USART_CR3_RTSE);
  }
  
  /**
    * @brief  Enable CTS HW Flow Control
    * @note   Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not
    *         Hardware Flow control feature is supported by the USARTx instance.
    * @rmtoll CR3          CTSE          LL_USART_EnableCTSHWFlowCtrl
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableCTSHWFlowCtrl(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR3, USART_CR3_CTSE);
  }
  
  /**
    * @brief  Disable CTS HW Flow Control
    * @note   Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not
    *         Hardware Flow control feature is supported by the USARTx instance.
    * @rmtoll CR3          CTSE          LL_USART_DisableCTSHWFlowCtrl
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableCTSHWFlowCtrl(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR3, USART_CR3_CTSE);
  }
  
  /**
    * @brief  Configure HW Flow Control mode (both CTS and RTS)
    * @note   Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not
    *         Hardware Flow control feature is supported by the USARTx instance.
    * @rmtoll CR3          RTSE          LL_USART_SetHWFlowCtrl\n
    *         CR3          CTSE          LL_USART_SetHWFlowCtrl
    * @param  USARTx USART Instance
    * @param  HardwareFlowControl This parameter can be one of the following values:
    *         @arg @ref LL_USART_HWCONTROL_NONE
    *         @arg @ref LL_USART_HWCONTROL_RTS
    *         @arg @ref LL_USART_HWCONTROL_CTS
    *         @arg @ref LL_USART_HWCONTROL_RTS_CTS
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetHWFlowCtrl(USART_TypeDef *USARTx, uint32_t HardwareFlowControl)
  {
    MODIFY_REG(USARTx->CR3, USART_CR3_RTSE | USART_CR3_CTSE, HardwareFlowControl);
  }
  
  /**
    * @brief  Return HW Flow Control configuration (both CTS and RTS)
    * @note   Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not
    *         Hardware Flow control feature is supported by the USARTx instance.
    * @rmtoll CR3          RTSE          LL_USART_GetHWFlowCtrl\n
    *         CR3          CTSE          LL_USART_GetHWFlowCtrl
    * @param  USARTx USART Instance
    * @retval Returned value can be one of the following values:
    *         @arg @ref LL_USART_HWCONTROL_NONE
    *         @arg @ref LL_USART_HWCONTROL_RTS
    *         @arg @ref LL_USART_HWCONTROL_CTS
    *         @arg @ref LL_USART_HWCONTROL_RTS_CTS
    */
  __STATIC_INLINE uint32_t LL_USART_GetHWFlowCtrl(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->CR3, USART_CR3_RTSE | USART_CR3_CTSE));
  }
  
  /**
    * @brief  Enable One bit sampling method
    * @rmtoll CR3          ONEBIT        LL_USART_EnableOneBitSamp
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableOneBitSamp(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR3, USART_CR3_ONEBIT);
  }
  
  /**
    * @brief  Disable One bit sampling method
    * @rmtoll CR3          ONEBIT        LL_USART_DisableOneBitSamp
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableOneBitSamp(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR3, USART_CR3_ONEBIT);
  }
  
  /**
    * @brief  Indicate if One bit sampling method is enabled
    * @rmtoll CR3          ONEBIT        LL_USART_IsEnabledOneBitSamp
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledOneBitSamp(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR3, USART_CR3_ONEBIT) == (USART_CR3_ONEBIT));
  }
  
  /**
    * @brief  Configure USART BRR register for achieving expected Baud Rate value.
    * @note   Compute and set USARTDIV value in BRR Register (full BRR content)
    *         according to used Peripheral Clock, Oversampling mode, and expected Baud Rate values
    * @note   Peripheral clock and Baud rate values provided as function parameters should be valid
    *         (Baud rate value != 0)
    * @rmtoll BRR          BRR           LL_USART_SetBaudRate
    * @param  USARTx USART Instance
    * @param  PeriphClk Peripheral Clock
    * @param  OverSampling This parameter can be one of the following values:
    *         @arg @ref LL_USART_OVERSAMPLING_16
    *         @arg @ref LL_USART_OVERSAMPLING_8
    * @param  BaudRate Baud Rate
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetBaudRate(USART_TypeDef *USARTx, uint32_t PeriphClk, uint32_t OverSampling,
                                            uint32_t BaudRate)
  {
    if (OverSampling == LL_USART_OVERSAMPLING_8)
    {
      USARTx->BRR = (uint16_t)(__LL_USART_DIV_SAMPLING8(PeriphClk, BaudRate));
    }
    else
    {
      USARTx->BRR = (uint16_t)(__LL_USART_DIV_SAMPLING16(PeriphClk, BaudRate));
    }
  }
  
  /**
    * @brief  Return current Baud Rate value, according to USARTDIV present in BRR register
    *         (full BRR content), and to used Peripheral Clock and Oversampling mode values
    * @note   In case of non-initialized or invalid value stored in BRR register, value 0 will be returned.
    * @rmtoll BRR          BRR           LL_USART_GetBaudRate
    * @param  USARTx USART Instance
    * @param  PeriphClk Peripheral Clock
    * @param  OverSampling This parameter can be one of the following values:
    *         @arg @ref LL_USART_OVERSAMPLING_16
    *         @arg @ref LL_USART_OVERSAMPLING_8
    * @retval Baud Rate
    */
  __STATIC_INLINE uint32_t LL_USART_GetBaudRate(USART_TypeDef *USARTx, uint32_t PeriphClk, uint32_t OverSampling)
  {
    register uint32_t usartdiv = 0x0U;
    register uint32_t brrresult = 0x0U;
  
    usartdiv = USARTx->BRR;
  
    if (OverSampling == LL_USART_OVERSAMPLING_8)
    {
      if ((usartdiv & 0xFFF7U) != 0U)
      {
        usartdiv = (uint16_t)((usartdiv & 0xFFF0U) | ((usartdiv & 0x0007U) << 1U)) ;
        brrresult = (PeriphClk * 2U) / usartdiv;
      }
    }
    else
    {
      if ((usartdiv & 0xFFFFU) != 0U)
      {
        brrresult = PeriphClk / usartdiv;
      }
    }
    return (brrresult);
  }
  
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EF_Configuration_IRDA Configuration functions related to Irda feature
    * @{
    */
  
  /**
    * @brief  Enable IrDA mode
    * @note   Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not
    *         IrDA feature is supported by the USARTx instance.
    * @rmtoll CR3          IREN          LL_USART_EnableIrda
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableIrda(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR3, USART_CR3_IREN);
  }
  
  /**
    * @brief  Disable IrDA mode
    * @note   Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not
    *         IrDA feature is supported by the USARTx instance.
    * @rmtoll CR3          IREN          LL_USART_DisableIrda
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableIrda(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR3, USART_CR3_IREN);
  }
  
  /**
    * @brief  Indicate if IrDA mode is enabled
    * @note   Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not
    *         IrDA feature is supported by the USARTx instance.
    * @rmtoll CR3          IREN          LL_USART_IsEnabledIrda
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledIrda(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR3, USART_CR3_IREN) == (USART_CR3_IREN));
  }
  
  /**
    * @brief  Configure IrDA Power Mode (Normal or Low Power)
    * @note   Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not
    *         IrDA feature is supported by the USARTx instance.
    * @rmtoll CR3          IRLP          LL_USART_SetIrdaPowerMode
    * @param  USARTx USART Instance
    * @param  PowerMode This parameter can be one of the following values:
    *         @arg @ref LL_USART_IRDA_POWER_NORMAL
    *         @arg @ref LL_USART_IRDA_POWER_LOW
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetIrdaPowerMode(USART_TypeDef *USARTx, uint32_t PowerMode)
  {
    MODIFY_REG(USARTx->CR3, USART_CR3_IRLP, PowerMode);
  }
  
  /**
    * @brief  Retrieve IrDA Power Mode configuration (Normal or Low Power)
    * @note   Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not
    *         IrDA feature is supported by the USARTx instance.
    * @rmtoll CR3          IRLP          LL_USART_GetIrdaPowerMode
    * @param  USARTx USART Instance
    * @retval Returned value can be one of the following values:
    *         @arg @ref LL_USART_IRDA_POWER_NORMAL
    *         @arg @ref LL_USART_PHASE_2EDGE
    */
  __STATIC_INLINE uint32_t LL_USART_GetIrdaPowerMode(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->CR3, USART_CR3_IRLP));
  }
  
  /**
    * @brief  Set Irda prescaler value, used for dividing the USART clock source
    *         to achieve the Irda Low Power frequency (8 bits value)
    * @note   Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not
    *         IrDA feature is supported by the USARTx instance.
    * @rmtoll GTPR         PSC           LL_USART_SetIrdaPrescaler
    * @param  USARTx USART Instance
    * @param  PrescalerValue Value between Min_Data=0x00 and Max_Data=0xFF
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetIrdaPrescaler(USART_TypeDef *USARTx, uint32_t PrescalerValue)
  {
    MODIFY_REG(USARTx->GTPR, USART_GTPR_PSC, PrescalerValue);
  }
  
  /**
    * @brief  Return Irda prescaler value, used for dividing the USART clock source
    *         to achieve the Irda Low Power frequency (8 bits value)
    * @note   Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not
    *         IrDA feature is supported by the USARTx instance.
    * @rmtoll GTPR         PSC           LL_USART_GetIrdaPrescaler
    * @param  USARTx USART Instance
    * @retval Irda prescaler value (Value between Min_Data=0x00 and Max_Data=0xFF)
    */
  __STATIC_INLINE uint32_t LL_USART_GetIrdaPrescaler(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->GTPR, USART_GTPR_PSC));
  }
  
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EF_Configuration_Smartcard Configuration functions related to Smartcard feature
    * @{
    */
  
  /**
    * @brief  Enable Smartcard NACK transmission
    * @note   Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not
    *         Smartcard feature is supported by the USARTx instance.
    * @rmtoll CR3          NACK          LL_USART_EnableSmartcardNACK
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableSmartcardNACK(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR3, USART_CR3_NACK);
  }
  
  /**
    * @brief  Disable Smartcard NACK transmission
    * @note   Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not
    *         Smartcard feature is supported by the USARTx instance.
    * @rmtoll CR3          NACK          LL_USART_DisableSmartcardNACK
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableSmartcardNACK(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR3, USART_CR3_NACK);
  }
  
  /**
    * @brief  Indicate if Smartcard NACK transmission is enabled
    * @note   Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not
    *         Smartcard feature is supported by the USARTx instance.
    * @rmtoll CR3          NACK          LL_USART_IsEnabledSmartcardNACK
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledSmartcardNACK(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR3, USART_CR3_NACK) == (USART_CR3_NACK));
  }
  
  /**
    * @brief  Enable Smartcard mode
    * @note   Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not
    *         Smartcard feature is supported by the USARTx instance.
    * @rmtoll CR3          SCEN          LL_USART_EnableSmartcard
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableSmartcard(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR3, USART_CR3_SCEN);
  }
  
  /**
    * @brief  Disable Smartcard mode
    * @note   Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not
    *         Smartcard feature is supported by the USARTx instance.
    * @rmtoll CR3          SCEN          LL_USART_DisableSmartcard
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableSmartcard(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR3, USART_CR3_SCEN);
  }
  
  /**
    * @brief  Indicate if Smartcard mode is enabled
    * @note   Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not
    *         Smartcard feature is supported by the USARTx instance.
    * @rmtoll CR3          SCEN          LL_USART_IsEnabledSmartcard
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledSmartcard(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR3, USART_CR3_SCEN) == (USART_CR3_SCEN));
  }
  
  /**
    * @brief  Set Smartcard prescaler value, used for dividing the USART clock
    *         source to provide the SMARTCARD Clock (5 bits value)
    * @note   Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not
    *         Smartcard feature is supported by the USARTx instance.
    * @rmtoll GTPR         PSC           LL_USART_SetSmartcardPrescaler
    * @param  USARTx USART Instance
    * @param  PrescalerValue Value between Min_Data=0 and Max_Data=31
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetSmartcardPrescaler(USART_TypeDef *USARTx, uint32_t PrescalerValue)
  {
    MODIFY_REG(USARTx->GTPR, USART_GTPR_PSC, PrescalerValue);
  }
  
  /**
    * @brief  Return Smartcard prescaler value, used for dividing the USART clock
    *         source to provide the SMARTCARD Clock (5 bits value)
    * @note   Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not
    *         Smartcard feature is supported by the USARTx instance.
    * @rmtoll GTPR         PSC           LL_USART_GetSmartcardPrescaler
    * @param  USARTx USART Instance
    * @retval Smartcard prescaler value (Value between Min_Data=0 and Max_Data=31)
    */
  __STATIC_INLINE uint32_t LL_USART_GetSmartcardPrescaler(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->GTPR, USART_GTPR_PSC));
  }
  
  /**
    * @brief  Set Smartcard Guard time value, expressed in nb of baud clocks periods
    *         (GT[7:0] bits : Guard time value)
    * @note   Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not
    *         Smartcard feature is supported by the USARTx instance.
    * @rmtoll GTPR         GT            LL_USART_SetSmartcardGuardTime
    * @param  USARTx USART Instance
    * @param  GuardTime Value between Min_Data=0x00 and Max_Data=0xFF
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetSmartcardGuardTime(USART_TypeDef *USARTx, uint32_t GuardTime)
  {
    MODIFY_REG(USARTx->GTPR, USART_GTPR_GT, GuardTime << USART_POSITION_GTPR_GT);
  }
  
  /**
    * @brief  Return Smartcard Guard time value, expressed in nb of baud clocks periods
    *         (GT[7:0] bits : Guard time value)
    * @note   Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not
    *         Smartcard feature is supported by the USARTx instance.
    * @rmtoll GTPR         GT            LL_USART_GetSmartcardGuardTime
    * @param  USARTx USART Instance
    * @retval Smartcard Guard time value (Value between Min_Data=0x00 and Max_Data=0xFF)
    */
  __STATIC_INLINE uint32_t LL_USART_GetSmartcardGuardTime(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->GTPR, USART_GTPR_GT) >> USART_POSITION_GTPR_GT);
  }
  
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EF_Configuration_HalfDuplex Configuration functions related to Half Duplex feature
    * @{
    */
  
  /**
    * @brief  Enable Single Wire Half-Duplex mode
    * @note   Macro @ref IS_UART_HALFDUPLEX_INSTANCE(USARTx) can be used to check whether or not
    *         Half-Duplex mode is supported by the USARTx instance.
    * @rmtoll CR3          HDSEL         LL_USART_EnableHalfDuplex
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableHalfDuplex(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR3, USART_CR3_HDSEL);
  }
  
  /**
    * @brief  Disable Single Wire Half-Duplex mode
    * @note   Macro @ref IS_UART_HALFDUPLEX_INSTANCE(USARTx) can be used to check whether or not
    *         Half-Duplex mode is supported by the USARTx instance.
    * @rmtoll CR3          HDSEL         LL_USART_DisableHalfDuplex
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableHalfDuplex(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR3, USART_CR3_HDSEL);
  }
  
  /**
    * @brief  Indicate if Single Wire Half-Duplex mode is enabled
    * @note   Macro @ref IS_UART_HALFDUPLEX_INSTANCE(USARTx) can be used to check whether or not
    *         Half-Duplex mode is supported by the USARTx instance.
    * @rmtoll CR3          HDSEL         LL_USART_IsEnabledHalfDuplex
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledHalfDuplex(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR3, USART_CR3_HDSEL) == (USART_CR3_HDSEL));
  }
  
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EF_Configuration_LIN Configuration functions related to LIN feature
    * @{
    */
  
  /**
    * @brief  Set LIN Break Detection Length
    * @note   Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not
    *         LIN feature is supported by the USARTx instance.
    * @rmtoll CR2          LBDL          LL_USART_SetLINBrkDetectionLen
    * @param  USARTx USART Instance
    * @param  LINBDLength This parameter can be one of the following values:
    *         @arg @ref LL_USART_LINBREAK_DETECT_10B
    *         @arg @ref LL_USART_LINBREAK_DETECT_11B
    * @retval None
    */
  __STATIC_INLINE void LL_USART_SetLINBrkDetectionLen(USART_TypeDef *USARTx, uint32_t LINBDLength)
  {
    MODIFY_REG(USARTx->CR2, USART_CR2_LBDL, LINBDLength);
  }
  
  /**
    * @brief  Return LIN Break Detection Length
    * @note   Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not
    *         LIN feature is supported by the USARTx instance.
    * @rmtoll CR2          LBDL          LL_USART_GetLINBrkDetectionLen
    * @param  USARTx USART Instance
    * @retval Returned value can be one of the following values:
    *         @arg @ref LL_USART_LINBREAK_DETECT_10B
    *         @arg @ref LL_USART_LINBREAK_DETECT_11B
    */
  __STATIC_INLINE uint32_t LL_USART_GetLINBrkDetectionLen(USART_TypeDef *USARTx)
  {
    return (uint32_t)(READ_BIT(USARTx->CR2, USART_CR2_LBDL));
  }
  
  /**
    * @brief  Enable LIN mode
    * @note   Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not
    *         LIN feature is supported by the USARTx instance.
    * @rmtoll CR2          LINEN         LL_USART_EnableLIN
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableLIN(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR2, USART_CR2_LINEN);
  }
  
  /**
    * @brief  Disable LIN mode
    * @note   Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not
    *         LIN feature is supported by the USARTx instance.
    * @rmtoll CR2          LINEN         LL_USART_DisableLIN
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableLIN(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR2, USART_CR2_LINEN);
  }
  
  /**
    * @brief  Indicate if LIN mode is enabled
    * @note   Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not
    *         LIN feature is supported by the USARTx instance.
    * @rmtoll CR2          LINEN         LL_USART_IsEnabledLIN
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledLIN(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR2, USART_CR2_LINEN) == (USART_CR2_LINEN));
  }
  
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EF_AdvancedConfiguration Advanced Configurations services
    * @{
    */
  
  /**
    * @brief  Perform basic configuration of USART for enabling use in Asynchronous Mode (UART)
    * @note   In UART mode, the following bits must be kept cleared:
    *           - LINEN bit in the USART_CR2 register,
    *           - CLKEN bit in the USART_CR2 register,
    *           - SCEN bit in the USART_CR3 register,
    *           - IREN bit in the USART_CR3 register,
    *           - HDSEL bit in the USART_CR3 register.
    * @note   Call of this function is equivalent to following function call sequence :
    *         - Clear LINEN in CR2 using @ref LL_USART_DisableLIN() function
    *         - Clear CLKEN in CR2 using @ref LL_USART_DisableSCLKOutput() function
    *         - Clear SCEN in CR3 using @ref LL_USART_DisableSmartcard() function
    *         - Clear IREN in CR3 using @ref LL_USART_DisableIrda() function
    *         - Clear HDSEL in CR3 using @ref LL_USART_DisableHalfDuplex() function
    * @note   Other remaining configurations items related to Asynchronous Mode
    *         (as Baud Rate, Word length, Parity, ...) should be set using
    *         dedicated functions
    * @rmtoll CR2          LINEN         LL_USART_ConfigAsyncMode\n
    *         CR2          CLKEN         LL_USART_ConfigAsyncMode\n
    *         CR3          SCEN          LL_USART_ConfigAsyncMode\n
    *         CR3          IREN          LL_USART_ConfigAsyncMode\n
    *         CR3          HDSEL         LL_USART_ConfigAsyncMode
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ConfigAsyncMode(USART_TypeDef *USARTx)
  {
    /* In Asynchronous mode, the following bits must be kept cleared:
    - LINEN, CLKEN bits in the USART_CR2 register,
    - SCEN, IREN and HDSEL bits in the USART_CR3 register.*/
    CLEAR_BIT(USARTx->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN));
    CLEAR_BIT(USARTx->CR3, (USART_CR3_SCEN | USART_CR3_IREN | USART_CR3_HDSEL));
  }
  
  /**
    * @brief  Perform basic configuration of USART for enabling use in Synchronous Mode
    * @note   In Synchronous mode, the following bits must be kept cleared:
    *           - LINEN bit in the USART_CR2 register,
    *           - SCEN bit in the USART_CR3 register,
    *           - IREN bit in the USART_CR3 register,
    *           - HDSEL bit in the USART_CR3 register.
    *         This function also sets the USART in Synchronous mode.
    * @note   Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not
    *         Synchronous mode is supported by the USARTx instance.
    * @note   Call of this function is equivalent to following function call sequence :
    *         - Clear LINEN in CR2 using @ref LL_USART_DisableLIN() function
    *         - Clear IREN in CR3 using @ref LL_USART_DisableIrda() function
    *         - Clear SCEN in CR3 using @ref LL_USART_DisableSmartcard() function
    *         - Clear HDSEL in CR3 using @ref LL_USART_DisableHalfDuplex() function
    *         - Set CLKEN in CR2 using @ref LL_USART_EnableSCLKOutput() function
    * @note   Other remaining configurations items related to Synchronous Mode
    *         (as Baud Rate, Word length, Parity, Clock Polarity, ...) should be set using
    *         dedicated functions
    * @rmtoll CR2          LINEN         LL_USART_ConfigSyncMode\n
    *         CR2          CLKEN         LL_USART_ConfigSyncMode\n
    *         CR3          SCEN          LL_USART_ConfigSyncMode\n
    *         CR3          IREN          LL_USART_ConfigSyncMode\n
    *         CR3          HDSEL         LL_USART_ConfigSyncMode
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ConfigSyncMode(USART_TypeDef *USARTx)
  {
    /* In Synchronous mode, the following bits must be kept cleared:
    - LINEN bit in the USART_CR2 register,
    - SCEN, IREN and HDSEL bits in the USART_CR3 register.*/
    CLEAR_BIT(USARTx->CR2, (USART_CR2_LINEN));
    CLEAR_BIT(USARTx->CR3, (USART_CR3_SCEN | USART_CR3_IREN | USART_CR3_HDSEL));
    /* set the UART/USART in Synchronous mode */
    SET_BIT(USARTx->CR2, USART_CR2_CLKEN);
  }
  
  /**
    * @brief  Perform basic configuration of USART for enabling use in LIN Mode
    * @note   In LIN mode, the following bits must be kept cleared:
    *           - STOP and CLKEN bits in the USART_CR2 register,
    *           - SCEN bit in the USART_CR3 register,
    *           - IREN bit in the USART_CR3 register,
    *           - HDSEL bit in the USART_CR3 register.
    *         This function also set the UART/USART in LIN mode.
    * @note   Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not
    *         LIN feature is supported by the USARTx instance.
    * @note   Call of this function is equivalent to following function call sequence :
    *         - Clear CLKEN in CR2 using @ref LL_USART_DisableSCLKOutput() function
    *         - Clear STOP in CR2 using @ref LL_USART_SetStopBitsLength() function
    *         - Clear SCEN in CR3 using @ref LL_USART_DisableSmartcard() function
    *         - Clear IREN in CR3 using @ref LL_USART_DisableIrda() function
    *         - Clear HDSEL in CR3 using @ref LL_USART_DisableHalfDuplex() function
    *         - Set LINEN in CR2 using @ref LL_USART_EnableLIN() function
    * @note   Other remaining configurations items related to LIN Mode
    *         (as Baud Rate, Word length, LIN Break Detection Length, ...) should be set using
    *         dedicated functions
    * @rmtoll CR2          CLKEN         LL_USART_ConfigLINMode\n
    *         CR2          STOP          LL_USART_ConfigLINMode\n
    *         CR2          LINEN         LL_USART_ConfigLINMode\n
    *         CR3          IREN          LL_USART_ConfigLINMode\n
    *         CR3          SCEN          LL_USART_ConfigLINMode\n
    *         CR3          HDSEL         LL_USART_ConfigLINMode
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ConfigLINMode(USART_TypeDef *USARTx)
  {
    /* In LIN mode, the following bits must be kept cleared:
    - STOP and CLKEN bits in the USART_CR2 register,
    - IREN, SCEN and HDSEL bits in the USART_CR3 register.*/
    CLEAR_BIT(USARTx->CR2, (USART_CR2_CLKEN | USART_CR2_STOP));
    CLEAR_BIT(USARTx->CR3, (USART_CR3_IREN | USART_CR3_SCEN | USART_CR3_HDSEL));
    /* Set the UART/USART in LIN mode */
    SET_BIT(USARTx->CR2, USART_CR2_LINEN);
  }
  
  /**
    * @brief  Perform basic configuration of USART for enabling use in Half Duplex Mode
    * @note   In Half Duplex mode, the following bits must be kept cleared:
    *           - LINEN bit in the USART_CR2 register,
    *           - CLKEN bit in the USART_CR2 register,
    *           - SCEN bit in the USART_CR3 register,
    *           - IREN bit in the USART_CR3 register,
    *         This function also sets the UART/USART in Half Duplex mode.
    * @note   Macro @ref IS_UART_HALFDUPLEX_INSTANCE(USARTx) can be used to check whether or not
    *         Half-Duplex mode is supported by the USARTx instance.
    * @note   Call of this function is equivalent to following function call sequence :
    *         - Clear LINEN in CR2 using @ref LL_USART_DisableLIN() function
    *         - Clear CLKEN in CR2 using @ref LL_USART_DisableSCLKOutput() function
    *         - Clear SCEN in CR3 using @ref LL_USART_DisableSmartcard() function
    *         - Clear IREN in CR3 using @ref LL_USART_DisableIrda() function
    *         - Set HDSEL in CR3 using @ref LL_USART_EnableHalfDuplex() function
    * @note   Other remaining configurations items related to Half Duplex Mode
    *         (as Baud Rate, Word length, Parity, ...) should be set using
    *         dedicated functions
    * @rmtoll CR2          LINEN         LL_USART_ConfigHalfDuplexMode\n
    *         CR2          CLKEN         LL_USART_ConfigHalfDuplexMode\n
    *         CR3          HDSEL         LL_USART_ConfigHalfDuplexMode\n
    *         CR3          SCEN          LL_USART_ConfigHalfDuplexMode\n
    *         CR3          IREN          LL_USART_ConfigHalfDuplexMode
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ConfigHalfDuplexMode(USART_TypeDef *USARTx)
  {
    /* 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(USARTx->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN));
    CLEAR_BIT(USARTx->CR3, (USART_CR3_SCEN | USART_CR3_IREN));
    /* set the UART/USART in Half Duplex mode */
    SET_BIT(USARTx->CR3, USART_CR3_HDSEL);
  }
  
  /**
    * @brief  Perform basic configuration of USART for enabling use in Smartcard Mode
    * @note   In Smartcard mode, the following bits must be kept cleared:
    *           - LINEN bit in the USART_CR2 register,
    *           - IREN bit in the USART_CR3 register,
    *           - HDSEL bit in the USART_CR3 register.
    *         This function also configures Stop bits to 1.5 bits and
    *         sets the USART in Smartcard mode (SCEN bit).
    *         Clock Output is also enabled (CLKEN).
    * @note   Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not
    *         Smartcard feature is supported by the USARTx instance.
    * @note   Call of this function is equivalent to following function call sequence :
    *         - Clear LINEN in CR2 using @ref LL_USART_DisableLIN() function
    *         - Clear IREN in CR3 using @ref LL_USART_DisableIrda() function
    *         - Clear HDSEL in CR3 using @ref LL_USART_DisableHalfDuplex() function
    *         - Configure STOP in CR2 using @ref LL_USART_SetStopBitsLength() function
    *         - Set CLKEN in CR2 using @ref LL_USART_EnableSCLKOutput() function
    *         - Set SCEN in CR3 using @ref LL_USART_EnableSmartcard() function
    * @note   Other remaining configurations items related to Smartcard Mode
    *         (as Baud Rate, Word length, Parity, ...) should be set using
    *         dedicated functions
    * @rmtoll CR2          LINEN         LL_USART_ConfigSmartcardMode\n
    *         CR2          STOP          LL_USART_ConfigSmartcardMode\n
    *         CR2          CLKEN         LL_USART_ConfigSmartcardMode\n
    *         CR3          HDSEL         LL_USART_ConfigSmartcardMode\n
    *         CR3          SCEN          LL_USART_ConfigSmartcardMode
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ConfigSmartcardMode(USART_TypeDef *USARTx)
  {
    /* In Smartcard mode, the following bits must be kept cleared:
    - LINEN bit in the USART_CR2 register,
    - IREN and HDSEL bits in the USART_CR3 register.*/
    CLEAR_BIT(USARTx->CR2, (USART_CR2_LINEN));
    CLEAR_BIT(USARTx->CR3, (USART_CR3_IREN | USART_CR3_HDSEL));
    /* Configure Stop bits to 1.5 bits */
    /* Synchronous mode is activated by default */
    SET_BIT(USARTx->CR2, (USART_CR2_STOP_0 | USART_CR2_STOP_1 | USART_CR2_CLKEN));
    /* set the UART/USART in Smartcard mode */
    SET_BIT(USARTx->CR3, USART_CR3_SCEN);
  }
  
  /**
    * @brief  Perform basic configuration of USART for enabling use in Irda Mode
    * @note   In IRDA mode, the following bits must be kept cleared:
    *           - LINEN bit in the USART_CR2 register,
    *           - STOP and CLKEN bits in the USART_CR2 register,
    *           - SCEN bit in the USART_CR3 register,
    *           - HDSEL bit in the USART_CR3 register.
    *         This function also sets the UART/USART in IRDA mode (IREN bit).
    * @note   Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not
    *         IrDA feature is supported by the USARTx instance.
    * @note   Call of this function is equivalent to following function call sequence :
    *         - Clear LINEN in CR2 using @ref LL_USART_DisableLIN() function
    *         - Clear CLKEN in CR2 using @ref LL_USART_DisableSCLKOutput() function
    *         - Clear SCEN in CR3 using @ref LL_USART_DisableSmartcard() function
    *         - Clear HDSEL in CR3 using @ref LL_USART_DisableHalfDuplex() function
    *         - Configure STOP in CR2 using @ref LL_USART_SetStopBitsLength() function
    *         - Set IREN in CR3 using @ref LL_USART_EnableIrda() function
    * @note   Other remaining configurations items related to Irda Mode
    *         (as Baud Rate, Word length, Power mode, ...) should be set using
    *         dedicated functions
    * @rmtoll CR2          LINEN         LL_USART_ConfigIrdaMode\n
    *         CR2          CLKEN         LL_USART_ConfigIrdaMode\n
    *         CR2          STOP          LL_USART_ConfigIrdaMode\n
    *         CR3          SCEN          LL_USART_ConfigIrdaMode\n
    *         CR3          HDSEL         LL_USART_ConfigIrdaMode\n
    *         CR3          IREN          LL_USART_ConfigIrdaMode
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ConfigIrdaMode(USART_TypeDef *USARTx)
  {
    /* In IRDA mode, the following bits must be kept cleared:
    - LINEN, STOP and CLKEN bits in the USART_CR2 register,
    - SCEN and HDSEL bits in the USART_CR3 register.*/
    CLEAR_BIT(USARTx->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN | USART_CR2_STOP));
    CLEAR_BIT(USARTx->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL));
    /* set the UART/USART in IRDA mode */
    SET_BIT(USARTx->CR3, USART_CR3_IREN);
  }
  
  /**
    * @brief  Perform basic configuration of USART for enabling use in Multi processor Mode
    *         (several USARTs connected in a network, one of the USARTs can be the master,
    *         its TX output connected to the RX inputs of the other slaves USARTs).
    * @note   In MultiProcessor mode, the following bits must be kept cleared:
    *           - LINEN bit in the USART_CR2 register,
    *           - CLKEN bit in the USART_CR2 register,
    *           - SCEN bit in the USART_CR3 register,
    *           - IREN bit in the USART_CR3 register,
    *           - HDSEL bit in the USART_CR3 register.
    * @note   Call of this function is equivalent to following function call sequence :
    *         - Clear LINEN in CR2 using @ref LL_USART_DisableLIN() function
    *         - Clear CLKEN in CR2 using @ref LL_USART_DisableSCLKOutput() function
    *         - Clear SCEN in CR3 using @ref LL_USART_DisableSmartcard() function
    *         - Clear IREN in CR3 using @ref LL_USART_DisableIrda() function
    *         - Clear HDSEL in CR3 using @ref LL_USART_DisableHalfDuplex() function
    * @note   Other remaining configurations items related to Multi processor Mode
    *         (as Baud Rate, Wake Up Method, Node address, ...) should be set using
    *         dedicated functions
    * @rmtoll CR2          LINEN         LL_USART_ConfigMultiProcessMode\n
    *         CR2          CLKEN         LL_USART_ConfigMultiProcessMode\n
    *         CR3          SCEN          LL_USART_ConfigMultiProcessMode\n
    *         CR3          HDSEL         LL_USART_ConfigMultiProcessMode\n
    *         CR3          IREN          LL_USART_ConfigMultiProcessMode
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ConfigMultiProcessMode(USART_TypeDef *USARTx)
  {
    /* In Multi Processor mode, the following bits must be kept cleared:
    - LINEN and CLKEN bits in the USART_CR2 register,
    - IREN, SCEN and HDSEL bits in the USART_CR3 register.*/
    CLEAR_BIT(USARTx->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN));
    CLEAR_BIT(USARTx->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN));
  }
  
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EF_FLAG_Management FLAG_Management
    * @{
    */
  
  /**
    * @brief  Check if the USART Parity Error Flag is set or not
    * @rmtoll SR           PE            LL_USART_IsActiveFlag_PE
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsActiveFlag_PE(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->SR, USART_SR_PE) == (USART_SR_PE));
  }
  
  /**
    * @brief  Check if the USART Framing Error Flag is set or not
    * @rmtoll SR           FE            LL_USART_IsActiveFlag_FE
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsActiveFlag_FE(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->SR, USART_SR_FE) == (USART_SR_FE));
  }
  
  /**
    * @brief  Check if the USART Noise error detected Flag is set or not
    * @rmtoll SR           NF            LL_USART_IsActiveFlag_NE
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsActiveFlag_NE(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->SR, USART_SR_NE) == (USART_SR_NE));
  }
  
  /**
    * @brief  Check if the USART OverRun Error Flag is set or not
    * @rmtoll SR           ORE           LL_USART_IsActiveFlag_ORE
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsActiveFlag_ORE(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->SR, USART_SR_ORE) == (USART_SR_ORE));
  }
  
  /**
    * @brief  Check if the USART IDLE line detected Flag is set or not
    * @rmtoll SR           IDLE          LL_USART_IsActiveFlag_IDLE
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsActiveFlag_IDLE(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->SR, USART_SR_IDLE) == (USART_SR_IDLE));
  }
  
  /**
    * @brief  Check if the USART Read Data Register Not Empty Flag is set or not
    * @rmtoll SR           RXNE          LL_USART_IsActiveFlag_RXNE
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsActiveFlag_RXNE(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->SR, USART_SR_RXNE) == (USART_SR_RXNE));
  }
  
  /**
    * @brief  Check if the USART Transmission Complete Flag is set or not
    * @rmtoll SR           TC            LL_USART_IsActiveFlag_TC
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsActiveFlag_TC(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->SR, USART_SR_TC) == (USART_SR_TC));
  }
  
  /**
    * @brief  Check if the USART Transmit Data Register Empty Flag is set or not
    * @rmtoll SR           TXE           LL_USART_IsActiveFlag_TXE
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsActiveFlag_TXE(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->SR, USART_SR_TXE) == (USART_SR_TXE));
  }
  
  /**
    * @brief  Check if the USART LIN Break Detection Flag is set or not
    * @note   Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not
    *         LIN feature is supported by the USARTx instance.
    * @rmtoll SR           LBD           LL_USART_IsActiveFlag_LBD
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsActiveFlag_LBD(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->SR, USART_SR_LBD) == (USART_SR_LBD));
  }
  
  /**
    * @brief  Check if the USART CTS Flag is set or not
    * @note   Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not
    *         Hardware Flow control feature is supported by the USARTx instance.
    * @rmtoll SR           CTS           LL_USART_IsActiveFlag_nCTS
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsActiveFlag_nCTS(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->SR, USART_SR_CTS) == (USART_SR_CTS));
  }
  
  /**
    * @brief  Check if the USART Send Break Flag is set or not
    * @rmtoll CR1          SBK           LL_USART_IsActiveFlag_SBK
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsActiveFlag_SBK(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR1, USART_CR1_SBK) == (USART_CR1_SBK));
  }
  
  /**
    * @brief  Check if the USART Receive Wake Up from mute mode Flag is set or not
    * @rmtoll CR1          RWU           LL_USART_IsActiveFlag_RWU
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsActiveFlag_RWU(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR1, USART_CR1_RWU) == (USART_CR1_RWU));
  }
  
  /**
    * @brief  Clear Parity Error Flag
    * @note   Clearing this flag is done by a read access to the USARTx_SR
    *         register followed by a read access to the USARTx_DR register.
    * @note   Please also consider that when clearing this flag, other flags as 
    *         NE, FE, ORE, IDLE would also be cleared.
    * @rmtoll SR           PE            LL_USART_ClearFlag_PE
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ClearFlag_PE(USART_TypeDef *USARTx)
  {
    __IO uint32_t tmpreg;
    tmpreg = USARTx->SR;
    (void) tmpreg;
    tmpreg = USARTx->DR;
    (void) tmpreg;
  }
  
  /**
    * @brief  Clear Framing Error Flag
    * @note   Clearing this flag is done by a read access to the USARTx_SR
    *         register followed by a read access to the USARTx_DR register.
    * @note   Please also consider that when clearing this flag, other flags as 
    *         PE, NE, ORE, IDLE would also be cleared.
    * @rmtoll SR           FE            LL_USART_ClearFlag_FE
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ClearFlag_FE(USART_TypeDef *USARTx)
  {
    __IO uint32_t tmpreg;
    tmpreg = USARTx->SR;
    (void) tmpreg;
    tmpreg = USARTx->DR;
    (void) tmpreg;
  }
  
  /**
    * @brief  Clear Noise detected Flag
    * @note   Clearing this flag is done by a read access to the USARTx_SR
    *         register followed by a read access to the USARTx_DR register.
    * @note   Please also consider that when clearing this flag, other flags as 
    *         PE, FE, ORE, IDLE would also be cleared.
    * @rmtoll SR           NF            LL_USART_ClearFlag_NE
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ClearFlag_NE(USART_TypeDef *USARTx)
  {
    __IO uint32_t tmpreg;
    tmpreg = USARTx->SR;
    (void) tmpreg;
    tmpreg = USARTx->DR;
    (void) tmpreg;
  }
  
  /**
    * @brief  Clear OverRun Error Flag
    * @note   Clearing this flag is done by a read access to the USARTx_SR
    *         register followed by a read access to the USARTx_DR register.
    * @note   Please also consider that when clearing this flag, other flags as 
    *         PE, NE, FE, IDLE would also be cleared.
    * @rmtoll SR           ORE           LL_USART_ClearFlag_ORE
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ClearFlag_ORE(USART_TypeDef *USARTx)
  {
    __IO uint32_t tmpreg;
    tmpreg = USARTx->SR;
    (void) tmpreg;
    tmpreg = USARTx->DR;
    (void) tmpreg;
  }
  
  /**
    * @brief  Clear IDLE line detected Flag
    * @note   Clearing this flag is done by a read access to the USARTx_SR
    *         register followed by a read access to the USARTx_DR register.
    * @note   Please also consider that when clearing this flag, other flags as 
    *         PE, NE, FE, ORE would also be cleared.
    * @rmtoll SR           IDLE          LL_USART_ClearFlag_IDLE
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ClearFlag_IDLE(USART_TypeDef *USARTx)
  {
    __IO uint32_t tmpreg;
    tmpreg = USARTx->SR;
    (void) tmpreg;
    tmpreg = USARTx->DR;
    (void) tmpreg;
  }
  
  /**
    * @brief  Clear Transmission Complete Flag
    * @rmtoll SR           TC            LL_USART_ClearFlag_TC
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ClearFlag_TC(USART_TypeDef *USARTx)
  {
    WRITE_REG(USARTx->SR , ~(USART_SR_TC));
  }
  
  /**
    * @brief  Clear RX Not Empty Flag
    * @rmtoll SR           RXNE          LL_USART_ClearFlag_RXNE
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ClearFlag_RXNE(USART_TypeDef *USARTx)
  {
    WRITE_REG(USARTx->SR , ~(USART_SR_RXNE));
  }
  
  /**
    * @brief  Clear LIN Break Detection Flag
    * @note   Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not
    *         LIN feature is supported by the USARTx instance.
    * @rmtoll SR           LBD           LL_USART_ClearFlag_LBD
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ClearFlag_LBD(USART_TypeDef *USARTx)
  {
    WRITE_REG(USARTx->SR , ~(USART_SR_LBD));
  }
  
  /**
    * @brief  Clear CTS Interrupt Flag
    * @note   Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not
    *         Hardware Flow control feature is supported by the USARTx instance.
    * @rmtoll SR           CTS           LL_USART_ClearFlag_nCTS
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_ClearFlag_nCTS(USART_TypeDef *USARTx)
  {
    WRITE_REG(USARTx->SR , ~(USART_SR_CTS));
  }
  
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EF_IT_Management IT_Management
    * @{
    */
  
  /**
    * @brief  Enable IDLE Interrupt
    * @rmtoll CR1          IDLEIE        LL_USART_EnableIT_IDLE
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableIT_IDLE(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR1, USART_CR1_IDLEIE);
  }
  
  /**
    * @brief  Enable RX Not Empty Interrupt
    * @rmtoll CR1          RXNEIE        LL_USART_EnableIT_RXNE
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableIT_RXNE(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR1, USART_CR1_RXNEIE);
  }
  
  /**
    * @brief  Enable Transmission Complete Interrupt
    * @rmtoll CR1          TCIE          LL_USART_EnableIT_TC
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableIT_TC(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR1, USART_CR1_TCIE);
  }
  
  /**
    * @brief  Enable TX Empty Interrupt
    * @rmtoll CR1          TXEIE         LL_USART_EnableIT_TXE
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableIT_TXE(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR1, USART_CR1_TXEIE);
  }
  
  /**
    * @brief  Enable Parity Error Interrupt
    * @rmtoll CR1          PEIE          LL_USART_EnableIT_PE
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableIT_PE(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR1, USART_CR1_PEIE);
  }
  
  /**
    * @brief  Enable LIN Break Detection Interrupt
    * @note   Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not
    *         LIN feature is supported by the USARTx instance.
    * @rmtoll CR2          LBDIE         LL_USART_EnableIT_LBD
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableIT_LBD(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR2, USART_CR2_LBDIE);
  }
  
  /**
    * @brief  Enable Error Interrupt
    * @note   When set, Error Interrupt Enable Bit is enabling interrupt generation in case of a framing
    *         error, overrun error or noise flag (FE=1 or ORE=1 or NF=1 in the USARTx_SR register).
    *           0: Interrupt is inhibited
    *           1: An interrupt is generated when FE=1 or ORE=1 or NF=1 in the USARTx_SR register.
    * @rmtoll CR3          EIE           LL_USART_EnableIT_ERROR
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableIT_ERROR(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR3, USART_CR3_EIE);
  }
  
  /**
    * @brief  Enable CTS Interrupt
    * @note   Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not
    *         Hardware Flow control feature is supported by the USARTx instance.
    * @rmtoll CR3          CTSIE         LL_USART_EnableIT_CTS
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableIT_CTS(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR3, USART_CR3_CTSIE);
  }
  
  /**
    * @brief  Disable IDLE Interrupt
    * @rmtoll CR1          IDLEIE        LL_USART_DisableIT_IDLE
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableIT_IDLE(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR1, USART_CR1_IDLEIE);
  }
  
  /**
    * @brief  Disable RX Not Empty Interrupt
    * @rmtoll CR1          RXNEIE        LL_USART_DisableIT_RXNE
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableIT_RXNE(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR1, USART_CR1_RXNEIE);
  }
  
  /**
    * @brief  Disable Transmission Complete Interrupt
    * @rmtoll CR1          TCIE          LL_USART_DisableIT_TC
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableIT_TC(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR1, USART_CR1_TCIE);
  }
  
  /**
    * @brief  Disable TX Empty Interrupt
    * @rmtoll CR1          TXEIE         LL_USART_DisableIT_TXE
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableIT_TXE(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR1, USART_CR1_TXEIE);
  }
  
  /**
    * @brief  Disable Parity Error Interrupt
    * @rmtoll CR1          PEIE          LL_USART_DisableIT_PE
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableIT_PE(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR1, USART_CR1_PEIE);
  }
  
  /**
    * @brief  Disable LIN Break Detection Interrupt
    * @note   Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not
    *         LIN feature is supported by the USARTx instance.
    * @rmtoll CR2          LBDIE         LL_USART_DisableIT_LBD
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableIT_LBD(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR2, USART_CR2_LBDIE);
  }
  
  /**
    * @brief  Disable Error Interrupt
    * @note   When set, Error Interrupt Enable Bit is enabling interrupt generation in case of a framing
    *         error, overrun error or noise flag (FE=1 or ORE=1 or NF=1 in the USARTx_SR register).
    *           0: Interrupt is inhibited
    *           1: An interrupt is generated when FE=1 or ORE=1 or NF=1 in the USARTx_SR register.
    * @rmtoll CR3          EIE           LL_USART_DisableIT_ERROR
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableIT_ERROR(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR3, USART_CR3_EIE);
  }
  
  /**
    * @brief  Disable CTS Interrupt
    * @note   Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not
    *         Hardware Flow control feature is supported by the USARTx instance.
    * @rmtoll CR3          CTSIE         LL_USART_DisableIT_CTS
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableIT_CTS(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR3, USART_CR3_CTSIE);
  }
  
  /**
    * @brief  Check if the USART IDLE Interrupt  source is enabled or disabled.
    * @rmtoll CR1          IDLEIE        LL_USART_IsEnabledIT_IDLE
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledIT_IDLE(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR1, USART_CR1_IDLEIE) == (USART_CR1_IDLEIE));
  }
  
  /**
    * @brief  Check if the USART RX Not Empty Interrupt is enabled or disabled.
    * @rmtoll CR1          RXNEIE        LL_USART_IsEnabledIT_RXNE
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledIT_RXNE(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR1, USART_CR1_RXNEIE) == (USART_CR1_RXNEIE));
  }
  
  /**
    * @brief  Check if the USART Transmission Complete Interrupt is enabled or disabled.
    * @rmtoll CR1          TCIE          LL_USART_IsEnabledIT_TC
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledIT_TC(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR1, USART_CR1_TCIE) == (USART_CR1_TCIE));
  }
  
  /**
    * @brief  Check if the USART TX Empty Interrupt is enabled or disabled.
    * @rmtoll CR1          TXEIE         LL_USART_IsEnabledIT_TXE
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledIT_TXE(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR1, USART_CR1_TXEIE) == (USART_CR1_TXEIE));
  }
  
  /**
    * @brief  Check if the USART Parity Error Interrupt is enabled or disabled.
    * @rmtoll CR1          PEIE          LL_USART_IsEnabledIT_PE
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledIT_PE(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR1, USART_CR1_PEIE) == (USART_CR1_PEIE));
  }
  
  /**
    * @brief  Check if the USART LIN Break Detection Interrupt is enabled or disabled.
    * @note   Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not
    *         LIN feature is supported by the USARTx instance.
    * @rmtoll CR2          LBDIE         LL_USART_IsEnabledIT_LBD
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledIT_LBD(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR2, USART_CR2_LBDIE) == (USART_CR2_LBDIE));
  }
  
  /**
    * @brief  Check if the USART Error Interrupt is enabled or disabled.
    * @rmtoll CR3          EIE           LL_USART_IsEnabledIT_ERROR
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledIT_ERROR(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR3, USART_CR3_EIE) == (USART_CR3_EIE));
  }
  
  /**
    * @brief  Check if the USART CTS Interrupt is enabled or disabled.
    * @note   Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not
    *         Hardware Flow control feature is supported by the USARTx instance.
    * @rmtoll CR3          CTSIE         LL_USART_IsEnabledIT_CTS
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledIT_CTS(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR3, USART_CR3_CTSIE) == (USART_CR3_CTSIE));
  }
  
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EF_DMA_Management DMA_Management
    * @{
    */
  
  /**
    * @brief  Enable DMA Mode for reception
    * @rmtoll CR3          DMAR          LL_USART_EnableDMAReq_RX
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableDMAReq_RX(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR3, USART_CR3_DMAR);
  }
  
  /**
    * @brief  Disable DMA Mode for reception
    * @rmtoll CR3          DMAR          LL_USART_DisableDMAReq_RX
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableDMAReq_RX(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR3, USART_CR3_DMAR);
  }
  
  /**
    * @brief  Check if DMA Mode is enabled for reception
    * @rmtoll CR3          DMAR          LL_USART_IsEnabledDMAReq_RX
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledDMAReq_RX(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR3, USART_CR3_DMAR) == (USART_CR3_DMAR));
  }
  
  /**
    * @brief  Enable DMA Mode for transmission
    * @rmtoll CR3          DMAT          LL_USART_EnableDMAReq_TX
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_EnableDMAReq_TX(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR3, USART_CR3_DMAT);
  }
  
  /**
    * @brief  Disable DMA Mode for transmission
    * @rmtoll CR3          DMAT          LL_USART_DisableDMAReq_TX
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_DisableDMAReq_TX(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR3, USART_CR3_DMAT);
  }
  
  /**
    * @brief  Check if DMA Mode is enabled for transmission
    * @rmtoll CR3          DMAT          LL_USART_IsEnabledDMAReq_TX
    * @param  USARTx USART Instance
    * @retval State of bit (1 or 0).
    */
  __STATIC_INLINE uint32_t LL_USART_IsEnabledDMAReq_TX(USART_TypeDef *USARTx)
  {
    return (READ_BIT(USARTx->CR3, USART_CR3_DMAT) == (USART_CR3_DMAT));
  }
  
  /**
    * @brief  Get the data register address used for DMA transfer
    * @rmtoll DR           DR            LL_USART_DMA_GetRegAddr
    * @note   Address of Data Register is valid for both Transmit and Receive transfers.
    * @param  USARTx USART Instance
    * @retval Address of data register
    */
  __STATIC_INLINE uint32_t LL_USART_DMA_GetRegAddr(USART_TypeDef *USARTx)
  {
    /* return address of DR register */
    return ((uint32_t) &(USARTx->DR));
  }
  
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EF_Data_Management Data_Management
    * @{
    */
  
  /**
    * @brief  Read Receiver Data register (Receive Data value, 8 bits)
    * @rmtoll DR           DR            LL_USART_ReceiveData8
    * @param  USARTx USART Instance
    * @retval Value between Min_Data=0x00 and Max_Data=0xFF
    */
  __STATIC_INLINE uint8_t LL_USART_ReceiveData8(USART_TypeDef *USARTx)
  {
    return (uint8_t)(READ_BIT(USARTx->DR, USART_DR_DR));
  }
  
  /**
    * @brief  Read Receiver Data register (Receive Data value, 9 bits)
    * @rmtoll DR           DR            LL_USART_ReceiveData9
    * @param  USARTx USART Instance
    * @retval Value between Min_Data=0x00 and Max_Data=0x1FF
    */
  __STATIC_INLINE uint16_t LL_USART_ReceiveData9(USART_TypeDef *USARTx)
  {
    return (uint16_t)(READ_BIT(USARTx->DR, USART_DR_DR));
  }
  
  /**
    * @brief  Write in Transmitter Data Register (Transmit Data value, 8 bits)
    * @rmtoll DR           DR            LL_USART_TransmitData8
    * @param  USARTx USART Instance
    * @param  Value between Min_Data=0x00 and Max_Data=0xFF
    * @retval None
    */
  __STATIC_INLINE void LL_USART_TransmitData8(USART_TypeDef *USARTx, uint8_t Value)
  {
    USARTx->DR = Value;
  }
  
  /**
    * @brief  Write in Transmitter Data Register (Transmit Data value, 9 bits)
    * @rmtoll DR           DR            LL_USART_TransmitData9
    * @param  USARTx USART Instance
    * @param  Value between Min_Data=0x00 and Max_Data=0x1FF
    * @retval None
    */
  __STATIC_INLINE void LL_USART_TransmitData9(USART_TypeDef *USARTx, uint16_t Value)
  {
    USARTx->DR = Value & 0x1FFU;
  }
  
  /**
    * @}
    */
  
  /** @defgroup USART_LL_EF_Execution Execution
    * @{
    */
  
  /**
    * @brief  Request Break sending
    * @rmtoll CR1          SBK           LL_USART_RequestBreakSending
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_RequestBreakSending(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR1, USART_CR1_SBK);
  }
  
  /**
    * @brief  Put USART in Mute mode
    * @rmtoll CR1          RWU           LL_USART_RequestEnterMuteMode
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_RequestEnterMuteMode(USART_TypeDef *USARTx)
  {
    SET_BIT(USARTx->CR1, USART_CR1_RWU);
  }
  
  /**
    * @brief  Put USART in Active mode
    * @rmtoll CR1          RWU           LL_USART_RequestExitMuteMode
    * @param  USARTx USART Instance
    * @retval None
    */
  __STATIC_INLINE void LL_USART_RequestExitMuteMode(USART_TypeDef *USARTx)
  {
    CLEAR_BIT(USARTx->CR1, USART_CR1_RWU);
  }
  
  /**
    * @}
    */
  
  #if defined(USE_FULL_LL_DRIVER)
  /** @defgroup USART_LL_EF_Init Initialization and de-initialization functions
    * @{
    */
  ErrorStatus LL_USART_DeInit(USART_TypeDef *USARTx);
  ErrorStatus LL_USART_Init(USART_TypeDef *USARTx, LL_USART_InitTypeDef *USART_InitStruct);
  void        LL_USART_StructInit(LL_USART_InitTypeDef *USART_InitStruct);
  ErrorStatus LL_USART_ClockInit(USART_TypeDef *USARTx, LL_USART_ClockInitTypeDef *USART_ClockInitStruct);
  void        LL_USART_ClockStructInit(LL_USART_ClockInitTypeDef *USART_ClockInitStruct);
  /**
    * @}
    */
  #endif /* USE_FULL_LL_DRIVER */
  
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  #endif /* USART1 || USART2 || USART3 || USART6 || UART4 || UART5 || UART7 || UART8 || UART9 || UART10 */
  
  /**
    * @}
    */
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* __STM32F4xx_LL_USART_H */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  