| /** |
| ****************************************************************************** |
| * @file stm32f2xx_ll_usart.h |
| * @author MCD Application Team |
| * @brief Header file of USART LL module. |
| ****************************************************************************** |
| * @attention |
| * |
| * <h2><center>© Copyright (c) 2016 STMicroelectronics. |
| * All rights reserved.</center></h2> |
| * |
| * This software component is licensed by ST under BSD 3-Clause license, |
| * the "License"; You may not use this file except in compliance with the |
| * License. You may obtain a copy of the License at: |
| * opensource.org/licenses/BSD-3-Clause |
| * |
| ****************************************************************************** |
| */ |
| |
| /* Define to prevent recursive inclusion -------------------------------------*/ |
| #ifndef __STM32F2xx_LL_USART_H |
| #define __STM32F2xx_LL_USART_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32f2xx.h" |
| |
| /** @addtogroup STM32F2xx_LL_Driver |
| * @{ |
| */ |
| |
| #if defined (USART1) || defined (USART2) || defined (USART3) || defined (USART6) || defined (UART4) || defined (UART5) |
| |
| /** @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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| uint32_t usartdiv = 0x0U; |
| 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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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) |
| { |
| ATOMIC_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 */ |
| |
| /** |
| * @} |
| */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __STM32F2xx_LL_USART_H */ |
| |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |