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diff Common/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_usart.h @ 128:c78bcbd5deda FlipDisplay
Added current STM32 standandard libraries in version independend folder structure
author | Ideenmodellierer |
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date | Sun, 17 Feb 2019 21:12:22 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Common/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_usart.h Sun Feb 17 21:12:22 2019 +0100 @@ -0,0 +1,2537 @@ +/** + ****************************************************************************** + * @file stm32f4xx_ll_usart.h + * @author MCD Application Team + * @brief Header file of USART LL module. + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of STMicroelectronics nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F4xx_LL_USART_H +#define __STM32F4xx_LL_USART_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f4xx.h" + +/** @addtogroup STM32F4xx_LL_Driver + * @{ + */ + +#if defined (USART1) || defined (USART2) || defined (USART3) || defined (USART6) || defined (UART4) || defined (UART5) || defined (UART7) || defined (UART8) || defined (UART9) || defined (UART10) + +/** @defgroup USART_LL USART + * @{ + */ + +/* Private types -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ + +/* Private constants ---------------------------------------------------------*/ +/** @defgroup USART_LL_Private_Constants USART Private Constants + * @{ + */ + +/* Defines used for the bit position in the register and perform offsets*/ +#define USART_POSITION_GTPR_GT USART_GTPR_GT_Pos +/** + * @} + */ + +/* Private macros ------------------------------------------------------------*/ +#if defined(USE_FULL_LL_DRIVER) +/** @defgroup USART_LL_Private_Macros USART Private Macros + * @{ + */ +/** + * @} + */ +#endif /*USE_FULL_LL_DRIVER*/ + +/* Exported types ------------------------------------------------------------*/ +#if defined(USE_FULL_LL_DRIVER) +/** @defgroup USART_LL_ES_INIT USART Exported Init structures + * @{ + */ + +/** + * @brief LL USART Init Structure definition + */ +typedef struct +{ + uint32_t BaudRate; /*!< This field defines expected Usart communication baud rate. + + This feature can be modified afterwards using unitary function @ref LL_USART_SetBaudRate().*/ + + uint32_t DataWidth; /*!< Specifies the number of data bits transmitted or received in a frame. + This parameter can be a value of @ref USART_LL_EC_DATAWIDTH. + + This feature can be modified afterwards using unitary function @ref LL_USART_SetDataWidth().*/ + + uint32_t StopBits; /*!< Specifies the number of stop bits transmitted. + This parameter can be a value of @ref USART_LL_EC_STOPBITS. + + This feature can be modified afterwards using unitary function @ref LL_USART_SetStopBitsLength().*/ + + uint32_t Parity; /*!< Specifies the parity mode. + This parameter can be a value of @ref USART_LL_EC_PARITY. + + This feature can be modified afterwards using unitary function @ref LL_USART_SetParity().*/ + + uint32_t TransferDirection; /*!< Specifies whether the Receive and/or Transmit mode is enabled or disabled. + This parameter can be a value of @ref USART_LL_EC_DIRECTION. + + This feature can be modified afterwards using unitary function @ref LL_USART_SetTransferDirection().*/ + + uint32_t HardwareFlowControl; /*!< Specifies whether the hardware flow control mode is enabled or disabled. + This parameter can be a value of @ref USART_LL_EC_HWCONTROL. + + This feature can be modified afterwards using unitary function @ref LL_USART_SetHWFlowCtrl().*/ + + uint32_t OverSampling; /*!< Specifies whether USART oversampling mode is 16 or 8. + This parameter can be a value of @ref USART_LL_EC_OVERSAMPLING. + + This feature can be modified afterwards using unitary function @ref LL_USART_SetOverSampling().*/ + +} LL_USART_InitTypeDef; + +/** + * @brief LL USART Clock Init Structure definition + */ +typedef struct +{ + uint32_t ClockOutput; /*!< Specifies whether the USART clock is enabled or disabled. + This parameter can be a value of @ref USART_LL_EC_CLOCK. + + USART HW configuration can be modified afterwards using unitary functions + @ref LL_USART_EnableSCLKOutput() or @ref LL_USART_DisableSCLKOutput(). + For more details, refer to description of this function. */ + + uint32_t ClockPolarity; /*!< Specifies the steady state of the serial clock. + This parameter can be a value of @ref USART_LL_EC_POLARITY. + + USART HW configuration can be modified afterwards using unitary functions @ref LL_USART_SetClockPolarity(). + For more details, refer to description of this function. */ + + uint32_t ClockPhase; /*!< Specifies the clock transition on which the bit capture is made. + This parameter can be a value of @ref USART_LL_EC_PHASE. + + USART HW configuration can be modified afterwards using unitary functions @ref LL_USART_SetClockPhase(). + For more details, refer to description of this function. */ + + uint32_t LastBitClockPulse; /*!< Specifies whether the clock pulse corresponding to the last transmitted + data bit (MSB) has to be output on the SCLK pin in synchronous mode. + This parameter can be a value of @ref USART_LL_EC_LASTCLKPULSE. + + USART HW configuration can be modified afterwards using unitary functions @ref LL_USART_SetLastClkPulseOutput(). + For more details, refer to description of this function. */ + +} LL_USART_ClockInitTypeDef; + +/** + * @} + */ +#endif /* USE_FULL_LL_DRIVER */ + +/* Exported constants --------------------------------------------------------*/ +/** @defgroup USART_LL_Exported_Constants USART Exported Constants + * @{ + */ + +/** @defgroup USART_LL_EC_GET_FLAG Get Flags Defines + * @brief Flags defines which can be used with LL_USART_ReadReg function + * @{ + */ +#define LL_USART_SR_PE USART_SR_PE /*!< Parity error flag */ +#define LL_USART_SR_FE USART_SR_FE /*!< Framing error flag */ +#define LL_USART_SR_NE USART_SR_NE /*!< Noise detected flag */ +#define LL_USART_SR_ORE USART_SR_ORE /*!< Overrun error flag */ +#define LL_USART_SR_IDLE USART_SR_IDLE /*!< Idle line detected flag */ +#define LL_USART_SR_RXNE USART_SR_RXNE /*!< Read data register not empty flag */ +#define LL_USART_SR_TC USART_SR_TC /*!< Transmission complete flag */ +#define LL_USART_SR_TXE USART_SR_TXE /*!< Transmit data register empty flag */ +#define LL_USART_SR_LBD USART_SR_LBD /*!< LIN break detection flag */ +#define LL_USART_SR_CTS USART_SR_CTS /*!< CTS flag */ +/** + * @} + */ + +/** @defgroup USART_LL_EC_IT IT Defines + * @brief IT defines which can be used with LL_USART_ReadReg and LL_USART_WriteReg functions + * @{ + */ +#define LL_USART_CR1_IDLEIE USART_CR1_IDLEIE /*!< IDLE interrupt enable */ +#define LL_USART_CR1_RXNEIE USART_CR1_RXNEIE /*!< Read data register not empty interrupt enable */ +#define LL_USART_CR1_TCIE USART_CR1_TCIE /*!< Transmission complete interrupt enable */ +#define LL_USART_CR1_TXEIE USART_CR1_TXEIE /*!< Transmit data register empty interrupt enable */ +#define LL_USART_CR1_PEIE USART_CR1_PEIE /*!< Parity error */ +#define LL_USART_CR2_LBDIE USART_CR2_LBDIE /*!< LIN break detection interrupt enable */ +#define LL_USART_CR3_EIE USART_CR3_EIE /*!< Error interrupt enable */ +#define LL_USART_CR3_CTSIE USART_CR3_CTSIE /*!< CTS interrupt enable */ +/** + * @} + */ + +/** @defgroup USART_LL_EC_DIRECTION Communication Direction + * @{ + */ +#define LL_USART_DIRECTION_NONE 0x00000000U /*!< Transmitter and Receiver are disabled */ +#define LL_USART_DIRECTION_RX USART_CR1_RE /*!< Transmitter is disabled and Receiver is enabled */ +#define LL_USART_DIRECTION_TX USART_CR1_TE /*!< Transmitter is enabled and Receiver is disabled */ +#define LL_USART_DIRECTION_TX_RX (USART_CR1_TE |USART_CR1_RE) /*!< Transmitter and Receiver are enabled */ +/** + * @} + */ + +/** @defgroup USART_LL_EC_PARITY Parity Control + * @{ + */ +#define LL_USART_PARITY_NONE 0x00000000U /*!< Parity control disabled */ +#define LL_USART_PARITY_EVEN USART_CR1_PCE /*!< Parity control enabled and Even Parity is selected */ +#define LL_USART_PARITY_ODD (USART_CR1_PCE | USART_CR1_PS) /*!< Parity control enabled and Odd Parity is selected */ +/** + * @} + */ + +/** @defgroup USART_LL_EC_WAKEUP Wakeup + * @{ + */ +#define LL_USART_WAKEUP_IDLELINE 0x00000000U /*!< USART wake up from Mute mode on Idle Line */ +#define LL_USART_WAKEUP_ADDRESSMARK USART_CR1_WAKE /*!< USART wake up from Mute mode on Address Mark */ +/** + * @} + */ + +/** @defgroup USART_LL_EC_DATAWIDTH Datawidth + * @{ + */ +#define LL_USART_DATAWIDTH_8B 0x00000000U /*!< 8 bits word length : Start bit, 8 data bits, n stop bits */ +#define LL_USART_DATAWIDTH_9B USART_CR1_M /*!< 9 bits word length : Start bit, 9 data bits, n stop bits */ +/** + * @} + */ + +/** @defgroup USART_LL_EC_OVERSAMPLING Oversampling + * @{ + */ +#define LL_USART_OVERSAMPLING_16 0x00000000U /*!< Oversampling by 16 */ +#define LL_USART_OVERSAMPLING_8 USART_CR1_OVER8 /*!< Oversampling by 8 */ +/** + * @} + */ + +#if defined(USE_FULL_LL_DRIVER) +/** @defgroup USART_LL_EC_CLOCK Clock Signal + * @{ + */ + +#define LL_USART_CLOCK_DISABLE 0x00000000U /*!< Clock signal not provided */ +#define LL_USART_CLOCK_ENABLE USART_CR2_CLKEN /*!< Clock signal provided */ +/** + * @} + */ +#endif /*USE_FULL_LL_DRIVER*/ + +/** @defgroup USART_LL_EC_LASTCLKPULSE Last Clock Pulse + * @{ + */ +#define LL_USART_LASTCLKPULSE_NO_OUTPUT 0x00000000U /*!< The clock pulse of the last data bit is not output to the SCLK pin */ +#define LL_USART_LASTCLKPULSE_OUTPUT USART_CR2_LBCL /*!< The clock pulse of the last data bit is output to the SCLK pin */ +/** + * @} + */ + +/** @defgroup USART_LL_EC_PHASE Clock Phase + * @{ + */ +#define LL_USART_PHASE_1EDGE 0x00000000U /*!< The first clock transition is the first data capture edge */ +#define LL_USART_PHASE_2EDGE USART_CR2_CPHA /*!< The second clock transition is the first data capture edge */ +/** + * @} + */ + +/** @defgroup USART_LL_EC_POLARITY Clock Polarity + * @{ + */ +#define LL_USART_POLARITY_LOW 0x00000000U /*!< Steady low value on SCLK pin outside transmission window*/ +#define LL_USART_POLARITY_HIGH USART_CR2_CPOL /*!< Steady high value on SCLK pin outside transmission window */ +/** + * @} + */ + +/** @defgroup USART_LL_EC_STOPBITS Stop Bits + * @{ + */ +#define LL_USART_STOPBITS_0_5 USART_CR2_STOP_0 /*!< 0.5 stop bit */ +#define LL_USART_STOPBITS_1 0x00000000U /*!< 1 stop bit */ +#define LL_USART_STOPBITS_1_5 (USART_CR2_STOP_0 | USART_CR2_STOP_1) /*!< 1.5 stop bits */ +#define LL_USART_STOPBITS_2 USART_CR2_STOP_1 /*!< 2 stop bits */ +/** + * @} + */ + +/** @defgroup USART_LL_EC_HWCONTROL Hardware Control + * @{ + */ +#define LL_USART_HWCONTROL_NONE 0x00000000U /*!< CTS and RTS hardware flow control disabled */ +#define LL_USART_HWCONTROL_RTS USART_CR3_RTSE /*!< RTS output enabled, data is only requested when there is space in the receive buffer */ +#define LL_USART_HWCONTROL_CTS USART_CR3_CTSE /*!< CTS mode enabled, data is only transmitted when the nCTS input is asserted (tied to 0) */ +#define LL_USART_HWCONTROL_RTS_CTS (USART_CR3_RTSE | USART_CR3_CTSE) /*!< CTS and RTS hardware flow control enabled */ +/** + * @} + */ + +/** @defgroup USART_LL_EC_IRDA_POWER IrDA Power + * @{ + */ +#define LL_USART_IRDA_POWER_NORMAL 0x00000000U /*!< IrDA normal power mode */ +#define LL_USART_IRDA_POWER_LOW USART_CR3_IRLP /*!< IrDA low power mode */ +/** + * @} + */ + +/** @defgroup USART_LL_EC_LINBREAK_DETECT LIN Break Detection Length + * @{ + */ +#define LL_USART_LINBREAK_DETECT_10B 0x00000000U /*!< 10-bit break detection method selected */ +#define LL_USART_LINBREAK_DETECT_11B USART_CR2_LBDL /*!< 11-bit break detection method selected */ +/** + * @} + */ + +/** + * @} + */ + +/* Exported macro ------------------------------------------------------------*/ +/** @defgroup USART_LL_Exported_Macros USART Exported Macros + * @{ + */ + +/** @defgroup USART_LL_EM_WRITE_READ Common Write and read registers Macros + * @{ + */ + +/** + * @brief Write a value in USART register + * @param __INSTANCE__ USART Instance + * @param __REG__ Register to be written + * @param __VALUE__ Value to be written in the register + * @retval None + */ +#define LL_USART_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__)) + +/** + * @brief Read a value in USART register + * @param __INSTANCE__ USART Instance + * @param __REG__ Register to be read + * @retval Register value + */ +#define LL_USART_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__) +/** + * @} + */ + +/** @defgroup USART_LL_EM_Exported_Macros_Helper Exported_Macros_Helper + * @{ + */ + +/** + * @brief Compute USARTDIV value according to Peripheral Clock and + * expected Baud Rate in 8 bits sampling mode (32 bits value of USARTDIV is returned) + * @param __PERIPHCLK__ Peripheral Clock frequency used for USART instance + * @param __BAUDRATE__ Baud rate value to achieve + * @retval USARTDIV value to be used for BRR register filling in OverSampling_8 case + */ +#define __LL_USART_DIV_SAMPLING8_100(__PERIPHCLK__, __BAUDRATE__) (((__PERIPHCLK__)*25)/(2*(__BAUDRATE__))) +#define __LL_USART_DIVMANT_SAMPLING8(__PERIPHCLK__, __BAUDRATE__) (__LL_USART_DIV_SAMPLING8_100((__PERIPHCLK__), (__BAUDRATE__))/100) +#define __LL_USART_DIVFRAQ_SAMPLING8(__PERIPHCLK__, __BAUDRATE__) (((__LL_USART_DIV_SAMPLING8_100((__PERIPHCLK__), (__BAUDRATE__)) - (__LL_USART_DIVMANT_SAMPLING8((__PERIPHCLK__), (__BAUDRATE__)) * 100)) * 8 + 50) / 100) +/* UART BRR = mantissa + overflow + fraction + = (UART DIVMANT << 4) + ((UART DIVFRAQ & 0xF8) << 1) + (UART DIVFRAQ & 0x07) */ +#define __LL_USART_DIV_SAMPLING8(__PERIPHCLK__, __BAUDRATE__) (((__LL_USART_DIVMANT_SAMPLING8((__PERIPHCLK__), (__BAUDRATE__)) << 4) + \ + ((__LL_USART_DIVFRAQ_SAMPLING8((__PERIPHCLK__), (__BAUDRATE__)) & 0xF8) << 1)) + \ + (__LL_USART_DIVFRAQ_SAMPLING8((__PERIPHCLK__), (__BAUDRATE__)) & 0x07)) + +/** + * @brief Compute USARTDIV value according to Peripheral Clock and + * expected Baud Rate in 16 bits sampling mode (32 bits value of USARTDIV is returned) + * @param __PERIPHCLK__ Peripheral Clock frequency used for USART instance + * @param __BAUDRATE__ Baud rate value to achieve + * @retval USARTDIV value to be used for BRR register filling in OverSampling_16 case + */ +#define __LL_USART_DIV_SAMPLING16_100(__PERIPHCLK__, __BAUDRATE__) (((__PERIPHCLK__)*25)/(4*(__BAUDRATE__))) +#define __LL_USART_DIVMANT_SAMPLING16(__PERIPHCLK__, __BAUDRATE__) (__LL_USART_DIV_SAMPLING16_100((__PERIPHCLK__), (__BAUDRATE__))/100) +#define __LL_USART_DIVFRAQ_SAMPLING16(__PERIPHCLK__, __BAUDRATE__) (((__LL_USART_DIV_SAMPLING16_100((__PERIPHCLK__), (__BAUDRATE__)) - (__LL_USART_DIVMANT_SAMPLING16((__PERIPHCLK__), (__BAUDRATE__)) * 100)) * 16 + 50) / 100) +/* USART BRR = mantissa + overflow + fraction + = (USART DIVMANT << 4) + (USART DIVFRAQ & 0xF0) + (USART DIVFRAQ & 0x0F) */ +#define __LL_USART_DIV_SAMPLING16(__PERIPHCLK__, __BAUDRATE__) (((__LL_USART_DIVMANT_SAMPLING16((__PERIPHCLK__), (__BAUDRATE__)) << 4) + \ + (__LL_USART_DIVFRAQ_SAMPLING16((__PERIPHCLK__), (__BAUDRATE__)) & 0xF0)) + \ + (__LL_USART_DIVFRAQ_SAMPLING16((__PERIPHCLK__), (__BAUDRATE__)) & 0x0F)) + +/** + * @} + */ + +/** + * @} + */ + +/* Exported functions --------------------------------------------------------*/ + +/** @defgroup USART_LL_Exported_Functions USART Exported Functions + * @{ + */ + +/** @defgroup USART_LL_EF_Configuration Configuration functions + * @{ + */ + +/** + * @brief USART Enable + * @rmtoll CR1 UE LL_USART_Enable + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_Enable(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR1, USART_CR1_UE); +} + +/** + * @brief USART Disable (all USART prescalers and outputs are disabled) + * @note When USART is disabled, USART prescalers and outputs are stopped immediately, + * and current operations are discarded. The configuration of the USART is kept, but all the status + * flags, in the USARTx_SR are set to their default values. + * @rmtoll CR1 UE LL_USART_Disable + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_Disable(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR1, USART_CR1_UE); +} + +/** + * @brief Indicate if USART is enabled + * @rmtoll CR1 UE LL_USART_IsEnabled + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabled(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR1, USART_CR1_UE) == (USART_CR1_UE)); +} + +/** + * @brief Receiver Enable (Receiver is enabled and begins searching for a start bit) + * @rmtoll CR1 RE LL_USART_EnableDirectionRx + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableDirectionRx(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR1, USART_CR1_RE); +} + +/** + * @brief Receiver Disable + * @rmtoll CR1 RE LL_USART_DisableDirectionRx + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableDirectionRx(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR1, USART_CR1_RE); +} + +/** + * @brief Transmitter Enable + * @rmtoll CR1 TE LL_USART_EnableDirectionTx + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableDirectionTx(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR1, USART_CR1_TE); +} + +/** + * @brief Transmitter Disable + * @rmtoll CR1 TE LL_USART_DisableDirectionTx + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableDirectionTx(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR1, USART_CR1_TE); +} + +/** + * @brief Configure simultaneously enabled/disabled states + * of Transmitter and Receiver + * @rmtoll CR1 RE LL_USART_SetTransferDirection\n + * CR1 TE LL_USART_SetTransferDirection + * @param USARTx USART Instance + * @param TransferDirection This parameter can be one of the following values: + * @arg @ref LL_USART_DIRECTION_NONE + * @arg @ref LL_USART_DIRECTION_RX + * @arg @ref LL_USART_DIRECTION_TX + * @arg @ref LL_USART_DIRECTION_TX_RX + * @retval None + */ +__STATIC_INLINE void LL_USART_SetTransferDirection(USART_TypeDef *USARTx, uint32_t TransferDirection) +{ + MODIFY_REG(USARTx->CR1, USART_CR1_RE | USART_CR1_TE, TransferDirection); +} + +/** + * @brief Return enabled/disabled states of Transmitter and Receiver + * @rmtoll CR1 RE LL_USART_GetTransferDirection\n + * CR1 TE LL_USART_GetTransferDirection + * @param USARTx USART Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_USART_DIRECTION_NONE + * @arg @ref LL_USART_DIRECTION_RX + * @arg @ref LL_USART_DIRECTION_TX + * @arg @ref LL_USART_DIRECTION_TX_RX + */ +__STATIC_INLINE uint32_t LL_USART_GetTransferDirection(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->CR1, USART_CR1_RE | USART_CR1_TE)); +} + +/** + * @brief Configure Parity (enabled/disabled and parity mode if enabled). + * @note This function selects if hardware parity control (generation and detection) is enabled or disabled. + * When the parity control is enabled (Odd or Even), computed parity bit is inserted at the MSB position + * (9th or 8th bit depending on data width) and parity is checked on the received data. + * @rmtoll CR1 PS LL_USART_SetParity\n + * CR1 PCE LL_USART_SetParity + * @param USARTx USART Instance + * @param Parity This parameter can be one of the following values: + * @arg @ref LL_USART_PARITY_NONE + * @arg @ref LL_USART_PARITY_EVEN + * @arg @ref LL_USART_PARITY_ODD + * @retval None + */ +__STATIC_INLINE void LL_USART_SetParity(USART_TypeDef *USARTx, uint32_t Parity) +{ + MODIFY_REG(USARTx->CR1, USART_CR1_PS | USART_CR1_PCE, Parity); +} + +/** + * @brief Return Parity configuration (enabled/disabled and parity mode if enabled) + * @rmtoll CR1 PS LL_USART_GetParity\n + * CR1 PCE LL_USART_GetParity + * @param USARTx USART Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_USART_PARITY_NONE + * @arg @ref LL_USART_PARITY_EVEN + * @arg @ref LL_USART_PARITY_ODD + */ +__STATIC_INLINE uint32_t LL_USART_GetParity(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->CR1, USART_CR1_PS | USART_CR1_PCE)); +} + +/** + * @brief Set Receiver Wake Up method from Mute mode. + * @rmtoll CR1 WAKE LL_USART_SetWakeUpMethod + * @param USARTx USART Instance + * @param Method This parameter can be one of the following values: + * @arg @ref LL_USART_WAKEUP_IDLELINE + * @arg @ref LL_USART_WAKEUP_ADDRESSMARK + * @retval None + */ +__STATIC_INLINE void LL_USART_SetWakeUpMethod(USART_TypeDef *USARTx, uint32_t Method) +{ + MODIFY_REG(USARTx->CR1, USART_CR1_WAKE, Method); +} + +/** + * @brief Return Receiver Wake Up method from Mute mode + * @rmtoll CR1 WAKE LL_USART_GetWakeUpMethod + * @param USARTx USART Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_USART_WAKEUP_IDLELINE + * @arg @ref LL_USART_WAKEUP_ADDRESSMARK + */ +__STATIC_INLINE uint32_t LL_USART_GetWakeUpMethod(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->CR1, USART_CR1_WAKE)); +} + +/** + * @brief Set Word length (i.e. nb of data bits, excluding start and stop bits) + * @rmtoll CR1 M LL_USART_SetDataWidth + * @param USARTx USART Instance + * @param DataWidth This parameter can be one of the following values: + * @arg @ref LL_USART_DATAWIDTH_8B + * @arg @ref LL_USART_DATAWIDTH_9B + * @retval None + */ +__STATIC_INLINE void LL_USART_SetDataWidth(USART_TypeDef *USARTx, uint32_t DataWidth) +{ + MODIFY_REG(USARTx->CR1, USART_CR1_M, DataWidth); +} + +/** + * @brief Return Word length (i.e. nb of data bits, excluding start and stop bits) + * @rmtoll CR1 M LL_USART_GetDataWidth + * @param USARTx USART Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_USART_DATAWIDTH_8B + * @arg @ref LL_USART_DATAWIDTH_9B + */ +__STATIC_INLINE uint32_t LL_USART_GetDataWidth(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->CR1, USART_CR1_M)); +} + +/** + * @brief Set Oversampling to 8-bit or 16-bit mode + * @rmtoll CR1 OVER8 LL_USART_SetOverSampling + * @param USARTx USART Instance + * @param OverSampling This parameter can be one of the following values: + * @arg @ref LL_USART_OVERSAMPLING_16 + * @arg @ref LL_USART_OVERSAMPLING_8 + * @retval None + */ +__STATIC_INLINE void LL_USART_SetOverSampling(USART_TypeDef *USARTx, uint32_t OverSampling) +{ + MODIFY_REG(USARTx->CR1, USART_CR1_OVER8, OverSampling); +} + +/** + * @brief Return Oversampling mode + * @rmtoll CR1 OVER8 LL_USART_GetOverSampling + * @param USARTx USART Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_USART_OVERSAMPLING_16 + * @arg @ref LL_USART_OVERSAMPLING_8 + */ +__STATIC_INLINE uint32_t LL_USART_GetOverSampling(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->CR1, USART_CR1_OVER8)); +} + +/** + * @brief Configure if Clock pulse of the last data bit is output to the SCLK pin or not + * @note Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not + * Synchronous mode is supported by the USARTx instance. + * @rmtoll CR2 LBCL LL_USART_SetLastClkPulseOutput + * @param USARTx USART Instance + * @param LastBitClockPulse This parameter can be one of the following values: + * @arg @ref LL_USART_LASTCLKPULSE_NO_OUTPUT + * @arg @ref LL_USART_LASTCLKPULSE_OUTPUT + * @retval None + */ +__STATIC_INLINE void LL_USART_SetLastClkPulseOutput(USART_TypeDef *USARTx, uint32_t LastBitClockPulse) +{ + MODIFY_REG(USARTx->CR2, USART_CR2_LBCL, LastBitClockPulse); +} + +/** + * @brief Retrieve Clock pulse of the last data bit output configuration + * (Last bit Clock pulse output to the SCLK pin or not) + * @note Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not + * Synchronous mode is supported by the USARTx instance. + * @rmtoll CR2 LBCL LL_USART_GetLastClkPulseOutput + * @param USARTx USART Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_USART_LASTCLKPULSE_NO_OUTPUT + * @arg @ref LL_USART_LASTCLKPULSE_OUTPUT + */ +__STATIC_INLINE uint32_t LL_USART_GetLastClkPulseOutput(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->CR2, USART_CR2_LBCL)); +} + +/** + * @brief Select the phase of the clock output on the SCLK pin in synchronous mode + * @note Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not + * Synchronous mode is supported by the USARTx instance. + * @rmtoll CR2 CPHA LL_USART_SetClockPhase + * @param USARTx USART Instance + * @param ClockPhase This parameter can be one of the following values: + * @arg @ref LL_USART_PHASE_1EDGE + * @arg @ref LL_USART_PHASE_2EDGE + * @retval None + */ +__STATIC_INLINE void LL_USART_SetClockPhase(USART_TypeDef *USARTx, uint32_t ClockPhase) +{ + MODIFY_REG(USARTx->CR2, USART_CR2_CPHA, ClockPhase); +} + +/** + * @brief Return phase of the clock output on the SCLK pin in synchronous mode + * @note Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not + * Synchronous mode is supported by the USARTx instance. + * @rmtoll CR2 CPHA LL_USART_GetClockPhase + * @param USARTx USART Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_USART_PHASE_1EDGE + * @arg @ref LL_USART_PHASE_2EDGE + */ +__STATIC_INLINE uint32_t LL_USART_GetClockPhase(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->CR2, USART_CR2_CPHA)); +} + +/** + * @brief Select the polarity of the clock output on the SCLK pin in synchronous mode + * @note Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not + * Synchronous mode is supported by the USARTx instance. + * @rmtoll CR2 CPOL LL_USART_SetClockPolarity + * @param USARTx USART Instance + * @param ClockPolarity This parameter can be one of the following values: + * @arg @ref LL_USART_POLARITY_LOW + * @arg @ref LL_USART_POLARITY_HIGH + * @retval None + */ +__STATIC_INLINE void LL_USART_SetClockPolarity(USART_TypeDef *USARTx, uint32_t ClockPolarity) +{ + MODIFY_REG(USARTx->CR2, USART_CR2_CPOL, ClockPolarity); +} + +/** + * @brief Return polarity of the clock output on the SCLK pin in synchronous mode + * @note Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not + * Synchronous mode is supported by the USARTx instance. + * @rmtoll CR2 CPOL LL_USART_GetClockPolarity + * @param USARTx USART Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_USART_POLARITY_LOW + * @arg @ref LL_USART_POLARITY_HIGH + */ +__STATIC_INLINE uint32_t LL_USART_GetClockPolarity(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->CR2, USART_CR2_CPOL)); +} + +/** + * @brief Configure Clock signal format (Phase Polarity and choice about output of last bit clock pulse) + * @note Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not + * Synchronous mode is supported by the USARTx instance. + * @note Call of this function is equivalent to following function call sequence : + * - Clock Phase configuration using @ref LL_USART_SetClockPhase() function + * - Clock Polarity configuration using @ref LL_USART_SetClockPolarity() function + * - Output of Last bit Clock pulse configuration using @ref LL_USART_SetLastClkPulseOutput() function + * @rmtoll CR2 CPHA LL_USART_ConfigClock\n + * CR2 CPOL LL_USART_ConfigClock\n + * CR2 LBCL LL_USART_ConfigClock + * @param USARTx USART Instance + * @param Phase This parameter can be one of the following values: + * @arg @ref LL_USART_PHASE_1EDGE + * @arg @ref LL_USART_PHASE_2EDGE + * @param Polarity This parameter can be one of the following values: + * @arg @ref LL_USART_POLARITY_LOW + * @arg @ref LL_USART_POLARITY_HIGH + * @param LBCPOutput This parameter can be one of the following values: + * @arg @ref LL_USART_LASTCLKPULSE_NO_OUTPUT + * @arg @ref LL_USART_LASTCLKPULSE_OUTPUT + * @retval None + */ +__STATIC_INLINE void LL_USART_ConfigClock(USART_TypeDef *USARTx, uint32_t Phase, uint32_t Polarity, uint32_t LBCPOutput) +{ + MODIFY_REG(USARTx->CR2, USART_CR2_CPHA | USART_CR2_CPOL | USART_CR2_LBCL, Phase | Polarity | LBCPOutput); +} + +/** + * @brief Enable Clock output on SCLK pin + * @note Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not + * Synchronous mode is supported by the USARTx instance. + * @rmtoll CR2 CLKEN LL_USART_EnableSCLKOutput + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableSCLKOutput(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR2, USART_CR2_CLKEN); +} + +/** + * @brief Disable Clock output on SCLK pin + * @note Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not + * Synchronous mode is supported by the USARTx instance. + * @rmtoll CR2 CLKEN LL_USART_DisableSCLKOutput + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableSCLKOutput(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR2, USART_CR2_CLKEN); +} + +/** + * @brief Indicate if Clock output on SCLK pin is enabled + * @note Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not + * Synchronous mode is supported by the USARTx instance. + * @rmtoll CR2 CLKEN LL_USART_IsEnabledSCLKOutput + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledSCLKOutput(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR2, USART_CR2_CLKEN) == (USART_CR2_CLKEN)); +} + +/** + * @brief Set the length of the stop bits + * @rmtoll CR2 STOP LL_USART_SetStopBitsLength + * @param USARTx USART Instance + * @param StopBits This parameter can be one of the following values: + * @arg @ref LL_USART_STOPBITS_0_5 + * @arg @ref LL_USART_STOPBITS_1 + * @arg @ref LL_USART_STOPBITS_1_5 + * @arg @ref LL_USART_STOPBITS_2 + * @retval None + */ +__STATIC_INLINE void LL_USART_SetStopBitsLength(USART_TypeDef *USARTx, uint32_t StopBits) +{ + MODIFY_REG(USARTx->CR2, USART_CR2_STOP, StopBits); +} + +/** + * @brief Retrieve the length of the stop bits + * @rmtoll CR2 STOP LL_USART_GetStopBitsLength + * @param USARTx USART Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_USART_STOPBITS_0_5 + * @arg @ref LL_USART_STOPBITS_1 + * @arg @ref LL_USART_STOPBITS_1_5 + * @arg @ref LL_USART_STOPBITS_2 + */ +__STATIC_INLINE uint32_t LL_USART_GetStopBitsLength(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->CR2, USART_CR2_STOP)); +} + +/** + * @brief Configure Character frame format (Datawidth, Parity control, Stop Bits) + * @note Call of this function is equivalent to following function call sequence : + * - Data Width configuration using @ref LL_USART_SetDataWidth() function + * - Parity Control and mode configuration using @ref LL_USART_SetParity() function + * - Stop bits configuration using @ref LL_USART_SetStopBitsLength() function + * @rmtoll CR1 PS LL_USART_ConfigCharacter\n + * CR1 PCE LL_USART_ConfigCharacter\n + * CR1 M LL_USART_ConfigCharacter\n + * CR2 STOP LL_USART_ConfigCharacter + * @param USARTx USART Instance + * @param DataWidth This parameter can be one of the following values: + * @arg @ref LL_USART_DATAWIDTH_8B + * @arg @ref LL_USART_DATAWIDTH_9B + * @param Parity This parameter can be one of the following values: + * @arg @ref LL_USART_PARITY_NONE + * @arg @ref LL_USART_PARITY_EVEN + * @arg @ref LL_USART_PARITY_ODD + * @param StopBits This parameter can be one of the following values: + * @arg @ref LL_USART_STOPBITS_0_5 + * @arg @ref LL_USART_STOPBITS_1 + * @arg @ref LL_USART_STOPBITS_1_5 + * @arg @ref LL_USART_STOPBITS_2 + * @retval None + */ +__STATIC_INLINE void LL_USART_ConfigCharacter(USART_TypeDef *USARTx, uint32_t DataWidth, uint32_t Parity, + uint32_t StopBits) +{ + MODIFY_REG(USARTx->CR1, USART_CR1_PS | USART_CR1_PCE | USART_CR1_M, Parity | DataWidth); + MODIFY_REG(USARTx->CR2, USART_CR2_STOP, StopBits); +} + +/** + * @brief Set Address of the USART node. + * @note This is used in multiprocessor communication during Mute mode or Stop mode, + * for wake up with address mark detection. + * @rmtoll CR2 ADD LL_USART_SetNodeAddress + * @param USARTx USART Instance + * @param NodeAddress 4 bit Address of the USART node. + * @retval None + */ +__STATIC_INLINE void LL_USART_SetNodeAddress(USART_TypeDef *USARTx, uint32_t NodeAddress) +{ + MODIFY_REG(USARTx->CR2, USART_CR2_ADD, (NodeAddress & USART_CR2_ADD)); +} + +/** + * @brief Return 4 bit Address of the USART node as set in ADD field of CR2. + * @note only 4bits (b3-b0) of returned value are relevant (b31-b4 are not relevant) + * @rmtoll CR2 ADD LL_USART_GetNodeAddress + * @param USARTx USART Instance + * @retval Address of the USART node (Value between Min_Data=0 and Max_Data=255) + */ +__STATIC_INLINE uint32_t LL_USART_GetNodeAddress(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->CR2, USART_CR2_ADD)); +} + +/** + * @brief Enable RTS HW Flow Control + * @note Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not + * Hardware Flow control feature is supported by the USARTx instance. + * @rmtoll CR3 RTSE LL_USART_EnableRTSHWFlowCtrl + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableRTSHWFlowCtrl(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR3, USART_CR3_RTSE); +} + +/** + * @brief Disable RTS HW Flow Control + * @note Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not + * Hardware Flow control feature is supported by the USARTx instance. + * @rmtoll CR3 RTSE LL_USART_DisableRTSHWFlowCtrl + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableRTSHWFlowCtrl(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR3, USART_CR3_RTSE); +} + +/** + * @brief Enable CTS HW Flow Control + * @note Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not + * Hardware Flow control feature is supported by the USARTx instance. + * @rmtoll CR3 CTSE LL_USART_EnableCTSHWFlowCtrl + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableCTSHWFlowCtrl(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR3, USART_CR3_CTSE); +} + +/** + * @brief Disable CTS HW Flow Control + * @note Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not + * Hardware Flow control feature is supported by the USARTx instance. + * @rmtoll CR3 CTSE LL_USART_DisableCTSHWFlowCtrl + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableCTSHWFlowCtrl(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR3, USART_CR3_CTSE); +} + +/** + * @brief Configure HW Flow Control mode (both CTS and RTS) + * @note Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not + * Hardware Flow control feature is supported by the USARTx instance. + * @rmtoll CR3 RTSE LL_USART_SetHWFlowCtrl\n + * CR3 CTSE LL_USART_SetHWFlowCtrl + * @param USARTx USART Instance + * @param HardwareFlowControl This parameter can be one of the following values: + * @arg @ref LL_USART_HWCONTROL_NONE + * @arg @ref LL_USART_HWCONTROL_RTS + * @arg @ref LL_USART_HWCONTROL_CTS + * @arg @ref LL_USART_HWCONTROL_RTS_CTS + * @retval None + */ +__STATIC_INLINE void LL_USART_SetHWFlowCtrl(USART_TypeDef *USARTx, uint32_t HardwareFlowControl) +{ + MODIFY_REG(USARTx->CR3, USART_CR3_RTSE | USART_CR3_CTSE, HardwareFlowControl); +} + +/** + * @brief Return HW Flow Control configuration (both CTS and RTS) + * @note Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not + * Hardware Flow control feature is supported by the USARTx instance. + * @rmtoll CR3 RTSE LL_USART_GetHWFlowCtrl\n + * CR3 CTSE LL_USART_GetHWFlowCtrl + * @param USARTx USART Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_USART_HWCONTROL_NONE + * @arg @ref LL_USART_HWCONTROL_RTS + * @arg @ref LL_USART_HWCONTROL_CTS + * @arg @ref LL_USART_HWCONTROL_RTS_CTS + */ +__STATIC_INLINE uint32_t LL_USART_GetHWFlowCtrl(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->CR3, USART_CR3_RTSE | USART_CR3_CTSE)); +} + +/** + * @brief Enable One bit sampling method + * @rmtoll CR3 ONEBIT LL_USART_EnableOneBitSamp + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableOneBitSamp(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR3, USART_CR3_ONEBIT); +} + +/** + * @brief Disable One bit sampling method + * @rmtoll CR3 ONEBIT LL_USART_DisableOneBitSamp + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableOneBitSamp(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR3, USART_CR3_ONEBIT); +} + +/** + * @brief Indicate if One bit sampling method is enabled + * @rmtoll CR3 ONEBIT LL_USART_IsEnabledOneBitSamp + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledOneBitSamp(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR3, USART_CR3_ONEBIT) == (USART_CR3_ONEBIT)); +} + +/** + * @brief Configure USART BRR register for achieving expected Baud Rate value. + * @note Compute and set USARTDIV value in BRR Register (full BRR content) + * according to used Peripheral Clock, Oversampling mode, and expected Baud Rate values + * @note Peripheral clock and Baud rate values provided as function parameters should be valid + * (Baud rate value != 0) + * @rmtoll BRR BRR LL_USART_SetBaudRate + * @param USARTx USART Instance + * @param PeriphClk Peripheral Clock + * @param OverSampling This parameter can be one of the following values: + * @arg @ref LL_USART_OVERSAMPLING_16 + * @arg @ref LL_USART_OVERSAMPLING_8 + * @param BaudRate Baud Rate + * @retval None + */ +__STATIC_INLINE void LL_USART_SetBaudRate(USART_TypeDef *USARTx, uint32_t PeriphClk, uint32_t OverSampling, + uint32_t BaudRate) +{ + if (OverSampling == LL_USART_OVERSAMPLING_8) + { + USARTx->BRR = (uint16_t)(__LL_USART_DIV_SAMPLING8(PeriphClk, BaudRate)); + } + else + { + USARTx->BRR = (uint16_t)(__LL_USART_DIV_SAMPLING16(PeriphClk, BaudRate)); + } +} + +/** + * @brief Return current Baud Rate value, according to USARTDIV present in BRR register + * (full BRR content), and to used Peripheral Clock and Oversampling mode values + * @note In case of non-initialized or invalid value stored in BRR register, value 0 will be returned. + * @rmtoll BRR BRR LL_USART_GetBaudRate + * @param USARTx USART Instance + * @param PeriphClk Peripheral Clock + * @param OverSampling This parameter can be one of the following values: + * @arg @ref LL_USART_OVERSAMPLING_16 + * @arg @ref LL_USART_OVERSAMPLING_8 + * @retval Baud Rate + */ +__STATIC_INLINE uint32_t LL_USART_GetBaudRate(USART_TypeDef *USARTx, uint32_t PeriphClk, uint32_t OverSampling) +{ + register uint32_t usartdiv = 0x0U; + register uint32_t brrresult = 0x0U; + + usartdiv = USARTx->BRR; + + if (OverSampling == LL_USART_OVERSAMPLING_8) + { + if ((usartdiv & 0xFFF7U) != 0U) + { + usartdiv = (uint16_t)((usartdiv & 0xFFF0U) | ((usartdiv & 0x0007U) << 1U)) ; + brrresult = (PeriphClk * 2U) / usartdiv; + } + } + else + { + if ((usartdiv & 0xFFFFU) != 0U) + { + brrresult = PeriphClk / usartdiv; + } + } + return (brrresult); +} + +/** + * @} + */ + +/** @defgroup USART_LL_EF_Configuration_IRDA Configuration functions related to Irda feature + * @{ + */ + +/** + * @brief Enable IrDA mode + * @note Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not + * IrDA feature is supported by the USARTx instance. + * @rmtoll CR3 IREN LL_USART_EnableIrda + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableIrda(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR3, USART_CR3_IREN); +} + +/** + * @brief Disable IrDA mode + * @note Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not + * IrDA feature is supported by the USARTx instance. + * @rmtoll CR3 IREN LL_USART_DisableIrda + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableIrda(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR3, USART_CR3_IREN); +} + +/** + * @brief Indicate if IrDA mode is enabled + * @note Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not + * IrDA feature is supported by the USARTx instance. + * @rmtoll CR3 IREN LL_USART_IsEnabledIrda + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledIrda(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR3, USART_CR3_IREN) == (USART_CR3_IREN)); +} + +/** + * @brief Configure IrDA Power Mode (Normal or Low Power) + * @note Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not + * IrDA feature is supported by the USARTx instance. + * @rmtoll CR3 IRLP LL_USART_SetIrdaPowerMode + * @param USARTx USART Instance + * @param PowerMode This parameter can be one of the following values: + * @arg @ref LL_USART_IRDA_POWER_NORMAL + * @arg @ref LL_USART_IRDA_POWER_LOW + * @retval None + */ +__STATIC_INLINE void LL_USART_SetIrdaPowerMode(USART_TypeDef *USARTx, uint32_t PowerMode) +{ + MODIFY_REG(USARTx->CR3, USART_CR3_IRLP, PowerMode); +} + +/** + * @brief Retrieve IrDA Power Mode configuration (Normal or Low Power) + * @note Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not + * IrDA feature is supported by the USARTx instance. + * @rmtoll CR3 IRLP LL_USART_GetIrdaPowerMode + * @param USARTx USART Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_USART_IRDA_POWER_NORMAL + * @arg @ref LL_USART_PHASE_2EDGE + */ +__STATIC_INLINE uint32_t LL_USART_GetIrdaPowerMode(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->CR3, USART_CR3_IRLP)); +} + +/** + * @brief Set Irda prescaler value, used for dividing the USART clock source + * to achieve the Irda Low Power frequency (8 bits value) + * @note Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not + * IrDA feature is supported by the USARTx instance. + * @rmtoll GTPR PSC LL_USART_SetIrdaPrescaler + * @param USARTx USART Instance + * @param PrescalerValue Value between Min_Data=0x00 and Max_Data=0xFF + * @retval None + */ +__STATIC_INLINE void LL_USART_SetIrdaPrescaler(USART_TypeDef *USARTx, uint32_t PrescalerValue) +{ + MODIFY_REG(USARTx->GTPR, USART_GTPR_PSC, PrescalerValue); +} + +/** + * @brief Return Irda prescaler value, used for dividing the USART clock source + * to achieve the Irda Low Power frequency (8 bits value) + * @note Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not + * IrDA feature is supported by the USARTx instance. + * @rmtoll GTPR PSC LL_USART_GetIrdaPrescaler + * @param USARTx USART Instance + * @retval Irda prescaler value (Value between Min_Data=0x00 and Max_Data=0xFF) + */ +__STATIC_INLINE uint32_t LL_USART_GetIrdaPrescaler(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->GTPR, USART_GTPR_PSC)); +} + +/** + * @} + */ + +/** @defgroup USART_LL_EF_Configuration_Smartcard Configuration functions related to Smartcard feature + * @{ + */ + +/** + * @brief Enable Smartcard NACK transmission + * @note Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not + * Smartcard feature is supported by the USARTx instance. + * @rmtoll CR3 NACK LL_USART_EnableSmartcardNACK + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableSmartcardNACK(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR3, USART_CR3_NACK); +} + +/** + * @brief Disable Smartcard NACK transmission + * @note Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not + * Smartcard feature is supported by the USARTx instance. + * @rmtoll CR3 NACK LL_USART_DisableSmartcardNACK + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableSmartcardNACK(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR3, USART_CR3_NACK); +} + +/** + * @brief Indicate if Smartcard NACK transmission is enabled + * @note Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not + * Smartcard feature is supported by the USARTx instance. + * @rmtoll CR3 NACK LL_USART_IsEnabledSmartcardNACK + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledSmartcardNACK(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR3, USART_CR3_NACK) == (USART_CR3_NACK)); +} + +/** + * @brief Enable Smartcard mode + * @note Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not + * Smartcard feature is supported by the USARTx instance. + * @rmtoll CR3 SCEN LL_USART_EnableSmartcard + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableSmartcard(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR3, USART_CR3_SCEN); +} + +/** + * @brief Disable Smartcard mode + * @note Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not + * Smartcard feature is supported by the USARTx instance. + * @rmtoll CR3 SCEN LL_USART_DisableSmartcard + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableSmartcard(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR3, USART_CR3_SCEN); +} + +/** + * @brief Indicate if Smartcard mode is enabled + * @note Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not + * Smartcard feature is supported by the USARTx instance. + * @rmtoll CR3 SCEN LL_USART_IsEnabledSmartcard + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledSmartcard(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR3, USART_CR3_SCEN) == (USART_CR3_SCEN)); +} + +/** + * @brief Set Smartcard prescaler value, used for dividing the USART clock + * source to provide the SMARTCARD Clock (5 bits value) + * @note Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not + * Smartcard feature is supported by the USARTx instance. + * @rmtoll GTPR PSC LL_USART_SetSmartcardPrescaler + * @param USARTx USART Instance + * @param PrescalerValue Value between Min_Data=0 and Max_Data=31 + * @retval None + */ +__STATIC_INLINE void LL_USART_SetSmartcardPrescaler(USART_TypeDef *USARTx, uint32_t PrescalerValue) +{ + MODIFY_REG(USARTx->GTPR, USART_GTPR_PSC, PrescalerValue); +} + +/** + * @brief Return Smartcard prescaler value, used for dividing the USART clock + * source to provide the SMARTCARD Clock (5 bits value) + * @note Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not + * Smartcard feature is supported by the USARTx instance. + * @rmtoll GTPR PSC LL_USART_GetSmartcardPrescaler + * @param USARTx USART Instance + * @retval Smartcard prescaler value (Value between Min_Data=0 and Max_Data=31) + */ +__STATIC_INLINE uint32_t LL_USART_GetSmartcardPrescaler(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->GTPR, USART_GTPR_PSC)); +} + +/** + * @brief Set Smartcard Guard time value, expressed in nb of baud clocks periods + * (GT[7:0] bits : Guard time value) + * @note Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not + * Smartcard feature is supported by the USARTx instance. + * @rmtoll GTPR GT LL_USART_SetSmartcardGuardTime + * @param USARTx USART Instance + * @param GuardTime Value between Min_Data=0x00 and Max_Data=0xFF + * @retval None + */ +__STATIC_INLINE void LL_USART_SetSmartcardGuardTime(USART_TypeDef *USARTx, uint32_t GuardTime) +{ + MODIFY_REG(USARTx->GTPR, USART_GTPR_GT, GuardTime << USART_POSITION_GTPR_GT); +} + +/** + * @brief Return Smartcard Guard time value, expressed in nb of baud clocks periods + * (GT[7:0] bits : Guard time value) + * @note Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not + * Smartcard feature is supported by the USARTx instance. + * @rmtoll GTPR GT LL_USART_GetSmartcardGuardTime + * @param USARTx USART Instance + * @retval Smartcard Guard time value (Value between Min_Data=0x00 and Max_Data=0xFF) + */ +__STATIC_INLINE uint32_t LL_USART_GetSmartcardGuardTime(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->GTPR, USART_GTPR_GT) >> USART_POSITION_GTPR_GT); +} + +/** + * @} + */ + +/** @defgroup USART_LL_EF_Configuration_HalfDuplex Configuration functions related to Half Duplex feature + * @{ + */ + +/** + * @brief Enable Single Wire Half-Duplex mode + * @note Macro @ref IS_UART_HALFDUPLEX_INSTANCE(USARTx) can be used to check whether or not + * Half-Duplex mode is supported by the USARTx instance. + * @rmtoll CR3 HDSEL LL_USART_EnableHalfDuplex + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableHalfDuplex(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR3, USART_CR3_HDSEL); +} + +/** + * @brief Disable Single Wire Half-Duplex mode + * @note Macro @ref IS_UART_HALFDUPLEX_INSTANCE(USARTx) can be used to check whether or not + * Half-Duplex mode is supported by the USARTx instance. + * @rmtoll CR3 HDSEL LL_USART_DisableHalfDuplex + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableHalfDuplex(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR3, USART_CR3_HDSEL); +} + +/** + * @brief Indicate if Single Wire Half-Duplex mode is enabled + * @note Macro @ref IS_UART_HALFDUPLEX_INSTANCE(USARTx) can be used to check whether or not + * Half-Duplex mode is supported by the USARTx instance. + * @rmtoll CR3 HDSEL LL_USART_IsEnabledHalfDuplex + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledHalfDuplex(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR3, USART_CR3_HDSEL) == (USART_CR3_HDSEL)); +} + +/** + * @} + */ + +/** @defgroup USART_LL_EF_Configuration_LIN Configuration functions related to LIN feature + * @{ + */ + +/** + * @brief Set LIN Break Detection Length + * @note Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not + * LIN feature is supported by the USARTx instance. + * @rmtoll CR2 LBDL LL_USART_SetLINBrkDetectionLen + * @param USARTx USART Instance + * @param LINBDLength This parameter can be one of the following values: + * @arg @ref LL_USART_LINBREAK_DETECT_10B + * @arg @ref LL_USART_LINBREAK_DETECT_11B + * @retval None + */ +__STATIC_INLINE void LL_USART_SetLINBrkDetectionLen(USART_TypeDef *USARTx, uint32_t LINBDLength) +{ + MODIFY_REG(USARTx->CR2, USART_CR2_LBDL, LINBDLength); +} + +/** + * @brief Return LIN Break Detection Length + * @note Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not + * LIN feature is supported by the USARTx instance. + * @rmtoll CR2 LBDL LL_USART_GetLINBrkDetectionLen + * @param USARTx USART Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_USART_LINBREAK_DETECT_10B + * @arg @ref LL_USART_LINBREAK_DETECT_11B + */ +__STATIC_INLINE uint32_t LL_USART_GetLINBrkDetectionLen(USART_TypeDef *USARTx) +{ + return (uint32_t)(READ_BIT(USARTx->CR2, USART_CR2_LBDL)); +} + +/** + * @brief Enable LIN mode + * @note Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not + * LIN feature is supported by the USARTx instance. + * @rmtoll CR2 LINEN LL_USART_EnableLIN + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableLIN(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR2, USART_CR2_LINEN); +} + +/** + * @brief Disable LIN mode + * @note Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not + * LIN feature is supported by the USARTx instance. + * @rmtoll CR2 LINEN LL_USART_DisableLIN + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableLIN(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR2, USART_CR2_LINEN); +} + +/** + * @brief Indicate if LIN mode is enabled + * @note Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not + * LIN feature is supported by the USARTx instance. + * @rmtoll CR2 LINEN LL_USART_IsEnabledLIN + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledLIN(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR2, USART_CR2_LINEN) == (USART_CR2_LINEN)); +} + +/** + * @} + */ + +/** @defgroup USART_LL_EF_AdvancedConfiguration Advanced Configurations services + * @{ + */ + +/** + * @brief Perform basic configuration of USART for enabling use in Asynchronous Mode (UART) + * @note In UART mode, the following bits must be kept cleared: + * - LINEN bit in the USART_CR2 register, + * - CLKEN bit in the USART_CR2 register, + * - SCEN bit in the USART_CR3 register, + * - IREN bit in the USART_CR3 register, + * - HDSEL bit in the USART_CR3 register. + * @note Call of this function is equivalent to following function call sequence : + * - Clear LINEN in CR2 using @ref LL_USART_DisableLIN() function + * - Clear CLKEN in CR2 using @ref LL_USART_DisableSCLKOutput() function + * - Clear SCEN in CR3 using @ref LL_USART_DisableSmartcard() function + * - Clear IREN in CR3 using @ref LL_USART_DisableIrda() function + * - Clear HDSEL in CR3 using @ref LL_USART_DisableHalfDuplex() function + * @note Other remaining configurations items related to Asynchronous Mode + * (as Baud Rate, Word length, Parity, ...) should be set using + * dedicated functions + * @rmtoll CR2 LINEN LL_USART_ConfigAsyncMode\n + * CR2 CLKEN LL_USART_ConfigAsyncMode\n + * CR3 SCEN LL_USART_ConfigAsyncMode\n + * CR3 IREN LL_USART_ConfigAsyncMode\n + * CR3 HDSEL LL_USART_ConfigAsyncMode + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ConfigAsyncMode(USART_TypeDef *USARTx) +{ + /* In Asynchronous mode, the following bits must be kept cleared: + - LINEN, CLKEN bits in the USART_CR2 register, + - SCEN, IREN and HDSEL bits in the USART_CR3 register.*/ + CLEAR_BIT(USARTx->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN)); + CLEAR_BIT(USARTx->CR3, (USART_CR3_SCEN | USART_CR3_IREN | USART_CR3_HDSEL)); +} + +/** + * @brief Perform basic configuration of USART for enabling use in Synchronous Mode + * @note In Synchronous mode, the following bits must be kept cleared: + * - LINEN bit in the USART_CR2 register, + * - SCEN bit in the USART_CR3 register, + * - IREN bit in the USART_CR3 register, + * - HDSEL bit in the USART_CR3 register. + * This function also sets the USART in Synchronous mode. + * @note Macro @ref IS_USART_INSTANCE(USARTx) can be used to check whether or not + * Synchronous mode is supported by the USARTx instance. + * @note Call of this function is equivalent to following function call sequence : + * - Clear LINEN in CR2 using @ref LL_USART_DisableLIN() function + * - Clear IREN in CR3 using @ref LL_USART_DisableIrda() function + * - Clear SCEN in CR3 using @ref LL_USART_DisableSmartcard() function + * - Clear HDSEL in CR3 using @ref LL_USART_DisableHalfDuplex() function + * - Set CLKEN in CR2 using @ref LL_USART_EnableSCLKOutput() function + * @note Other remaining configurations items related to Synchronous Mode + * (as Baud Rate, Word length, Parity, Clock Polarity, ...) should be set using + * dedicated functions + * @rmtoll CR2 LINEN LL_USART_ConfigSyncMode\n + * CR2 CLKEN LL_USART_ConfigSyncMode\n + * CR3 SCEN LL_USART_ConfigSyncMode\n + * CR3 IREN LL_USART_ConfigSyncMode\n + * CR3 HDSEL LL_USART_ConfigSyncMode + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ConfigSyncMode(USART_TypeDef *USARTx) +{ + /* In Synchronous mode, the following bits must be kept cleared: + - LINEN bit in the USART_CR2 register, + - SCEN, IREN and HDSEL bits in the USART_CR3 register.*/ + CLEAR_BIT(USARTx->CR2, (USART_CR2_LINEN)); + CLEAR_BIT(USARTx->CR3, (USART_CR3_SCEN | USART_CR3_IREN | USART_CR3_HDSEL)); + /* set the UART/USART in Synchronous mode */ + SET_BIT(USARTx->CR2, USART_CR2_CLKEN); +} + +/** + * @brief Perform basic configuration of USART for enabling use in LIN Mode + * @note In LIN mode, the following bits must be kept cleared: + * - STOP and CLKEN bits in the USART_CR2 register, + * - SCEN bit in the USART_CR3 register, + * - IREN bit in the USART_CR3 register, + * - HDSEL bit in the USART_CR3 register. + * This function also set the UART/USART in LIN mode. + * @note Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not + * LIN feature is supported by the USARTx instance. + * @note Call of this function is equivalent to following function call sequence : + * - Clear CLKEN in CR2 using @ref LL_USART_DisableSCLKOutput() function + * - Clear STOP in CR2 using @ref LL_USART_SetStopBitsLength() function + * - Clear SCEN in CR3 using @ref LL_USART_DisableSmartcard() function + * - Clear IREN in CR3 using @ref LL_USART_DisableIrda() function + * - Clear HDSEL in CR3 using @ref LL_USART_DisableHalfDuplex() function + * - Set LINEN in CR2 using @ref LL_USART_EnableLIN() function + * @note Other remaining configurations items related to LIN Mode + * (as Baud Rate, Word length, LIN Break Detection Length, ...) should be set using + * dedicated functions + * @rmtoll CR2 CLKEN LL_USART_ConfigLINMode\n + * CR2 STOP LL_USART_ConfigLINMode\n + * CR2 LINEN LL_USART_ConfigLINMode\n + * CR3 IREN LL_USART_ConfigLINMode\n + * CR3 SCEN LL_USART_ConfigLINMode\n + * CR3 HDSEL LL_USART_ConfigLINMode + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ConfigLINMode(USART_TypeDef *USARTx) +{ + /* In LIN mode, the following bits must be kept cleared: + - STOP and CLKEN bits in the USART_CR2 register, + - IREN, SCEN and HDSEL bits in the USART_CR3 register.*/ + CLEAR_BIT(USARTx->CR2, (USART_CR2_CLKEN | USART_CR2_STOP)); + CLEAR_BIT(USARTx->CR3, (USART_CR3_IREN | USART_CR3_SCEN | USART_CR3_HDSEL)); + /* Set the UART/USART in LIN mode */ + SET_BIT(USARTx->CR2, USART_CR2_LINEN); +} + +/** + * @brief Perform basic configuration of USART for enabling use in Half Duplex Mode + * @note In Half Duplex mode, the following bits must be kept cleared: + * - LINEN bit in the USART_CR2 register, + * - CLKEN bit in the USART_CR2 register, + * - SCEN bit in the USART_CR3 register, + * - IREN bit in the USART_CR3 register, + * This function also sets the UART/USART in Half Duplex mode. + * @note Macro @ref IS_UART_HALFDUPLEX_INSTANCE(USARTx) can be used to check whether or not + * Half-Duplex mode is supported by the USARTx instance. + * @note Call of this function is equivalent to following function call sequence : + * - Clear LINEN in CR2 using @ref LL_USART_DisableLIN() function + * - Clear CLKEN in CR2 using @ref LL_USART_DisableSCLKOutput() function + * - Clear SCEN in CR3 using @ref LL_USART_DisableSmartcard() function + * - Clear IREN in CR3 using @ref LL_USART_DisableIrda() function + * - Set HDSEL in CR3 using @ref LL_USART_EnableHalfDuplex() function + * @note Other remaining configurations items related to Half Duplex Mode + * (as Baud Rate, Word length, Parity, ...) should be set using + * dedicated functions + * @rmtoll CR2 LINEN LL_USART_ConfigHalfDuplexMode\n + * CR2 CLKEN LL_USART_ConfigHalfDuplexMode\n + * CR3 HDSEL LL_USART_ConfigHalfDuplexMode\n + * CR3 SCEN LL_USART_ConfigHalfDuplexMode\n + * CR3 IREN LL_USART_ConfigHalfDuplexMode + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ConfigHalfDuplexMode(USART_TypeDef *USARTx) +{ + /* In Half Duplex mode, the following bits must be kept cleared: + - LINEN and CLKEN bits in the USART_CR2 register, + - SCEN and IREN bits in the USART_CR3 register.*/ + CLEAR_BIT(USARTx->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN)); + CLEAR_BIT(USARTx->CR3, (USART_CR3_SCEN | USART_CR3_IREN)); + /* set the UART/USART in Half Duplex mode */ + SET_BIT(USARTx->CR3, USART_CR3_HDSEL); +} + +/** + * @brief Perform basic configuration of USART for enabling use in Smartcard Mode + * @note In Smartcard mode, the following bits must be kept cleared: + * - LINEN bit in the USART_CR2 register, + * - IREN bit in the USART_CR3 register, + * - HDSEL bit in the USART_CR3 register. + * This function also configures Stop bits to 1.5 bits and + * sets the USART in Smartcard mode (SCEN bit). + * Clock Output is also enabled (CLKEN). + * @note Macro @ref IS_SMARTCARD_INSTANCE(USARTx) can be used to check whether or not + * Smartcard feature is supported by the USARTx instance. + * @note Call of this function is equivalent to following function call sequence : + * - Clear LINEN in CR2 using @ref LL_USART_DisableLIN() function + * - Clear IREN in CR3 using @ref LL_USART_DisableIrda() function + * - Clear HDSEL in CR3 using @ref LL_USART_DisableHalfDuplex() function + * - Configure STOP in CR2 using @ref LL_USART_SetStopBitsLength() function + * - Set CLKEN in CR2 using @ref LL_USART_EnableSCLKOutput() function + * - Set SCEN in CR3 using @ref LL_USART_EnableSmartcard() function + * @note Other remaining configurations items related to Smartcard Mode + * (as Baud Rate, Word length, Parity, ...) should be set using + * dedicated functions + * @rmtoll CR2 LINEN LL_USART_ConfigSmartcardMode\n + * CR2 STOP LL_USART_ConfigSmartcardMode\n + * CR2 CLKEN LL_USART_ConfigSmartcardMode\n + * CR3 HDSEL LL_USART_ConfigSmartcardMode\n + * CR3 SCEN LL_USART_ConfigSmartcardMode + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ConfigSmartcardMode(USART_TypeDef *USARTx) +{ + /* In Smartcard mode, the following bits must be kept cleared: + - LINEN bit in the USART_CR2 register, + - IREN and HDSEL bits in the USART_CR3 register.*/ + CLEAR_BIT(USARTx->CR2, (USART_CR2_LINEN)); + CLEAR_BIT(USARTx->CR3, (USART_CR3_IREN | USART_CR3_HDSEL)); + /* Configure Stop bits to 1.5 bits */ + /* Synchronous mode is activated by default */ + SET_BIT(USARTx->CR2, (USART_CR2_STOP_0 | USART_CR2_STOP_1 | USART_CR2_CLKEN)); + /* set the UART/USART in Smartcard mode */ + SET_BIT(USARTx->CR3, USART_CR3_SCEN); +} + +/** + * @brief Perform basic configuration of USART for enabling use in Irda Mode + * @note In IRDA mode, the following bits must be kept cleared: + * - LINEN bit in the USART_CR2 register, + * - STOP and CLKEN bits in the USART_CR2 register, + * - SCEN bit in the USART_CR3 register, + * - HDSEL bit in the USART_CR3 register. + * This function also sets the UART/USART in IRDA mode (IREN bit). + * @note Macro @ref IS_IRDA_INSTANCE(USARTx) can be used to check whether or not + * IrDA feature is supported by the USARTx instance. + * @note Call of this function is equivalent to following function call sequence : + * - Clear LINEN in CR2 using @ref LL_USART_DisableLIN() function + * - Clear CLKEN in CR2 using @ref LL_USART_DisableSCLKOutput() function + * - Clear SCEN in CR3 using @ref LL_USART_DisableSmartcard() function + * - Clear HDSEL in CR3 using @ref LL_USART_DisableHalfDuplex() function + * - Configure STOP in CR2 using @ref LL_USART_SetStopBitsLength() function + * - Set IREN in CR3 using @ref LL_USART_EnableIrda() function + * @note Other remaining configurations items related to Irda Mode + * (as Baud Rate, Word length, Power mode, ...) should be set using + * dedicated functions + * @rmtoll CR2 LINEN LL_USART_ConfigIrdaMode\n + * CR2 CLKEN LL_USART_ConfigIrdaMode\n + * CR2 STOP LL_USART_ConfigIrdaMode\n + * CR3 SCEN LL_USART_ConfigIrdaMode\n + * CR3 HDSEL LL_USART_ConfigIrdaMode\n + * CR3 IREN LL_USART_ConfigIrdaMode + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ConfigIrdaMode(USART_TypeDef *USARTx) +{ + /* In IRDA mode, the following bits must be kept cleared: + - LINEN, STOP and CLKEN bits in the USART_CR2 register, + - SCEN and HDSEL bits in the USART_CR3 register.*/ + CLEAR_BIT(USARTx->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN | USART_CR2_STOP)); + CLEAR_BIT(USARTx->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL)); + /* set the UART/USART in IRDA mode */ + SET_BIT(USARTx->CR3, USART_CR3_IREN); +} + +/** + * @brief Perform basic configuration of USART for enabling use in Multi processor Mode + * (several USARTs connected in a network, one of the USARTs can be the master, + * its TX output connected to the RX inputs of the other slaves USARTs). + * @note In MultiProcessor mode, the following bits must be kept cleared: + * - LINEN bit in the USART_CR2 register, + * - CLKEN bit in the USART_CR2 register, + * - SCEN bit in the USART_CR3 register, + * - IREN bit in the USART_CR3 register, + * - HDSEL bit in the USART_CR3 register. + * @note Call of this function is equivalent to following function call sequence : + * - Clear LINEN in CR2 using @ref LL_USART_DisableLIN() function + * - Clear CLKEN in CR2 using @ref LL_USART_DisableSCLKOutput() function + * - Clear SCEN in CR3 using @ref LL_USART_DisableSmartcard() function + * - Clear IREN in CR3 using @ref LL_USART_DisableIrda() function + * - Clear HDSEL in CR3 using @ref LL_USART_DisableHalfDuplex() function + * @note Other remaining configurations items related to Multi processor Mode + * (as Baud Rate, Wake Up Method, Node address, ...) should be set using + * dedicated functions + * @rmtoll CR2 LINEN LL_USART_ConfigMultiProcessMode\n + * CR2 CLKEN LL_USART_ConfigMultiProcessMode\n + * CR3 SCEN LL_USART_ConfigMultiProcessMode\n + * CR3 HDSEL LL_USART_ConfigMultiProcessMode\n + * CR3 IREN LL_USART_ConfigMultiProcessMode + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ConfigMultiProcessMode(USART_TypeDef *USARTx) +{ + /* In Multi Processor mode, the following bits must be kept cleared: + - LINEN and CLKEN bits in the USART_CR2 register, + - IREN, SCEN and HDSEL bits in the USART_CR3 register.*/ + CLEAR_BIT(USARTx->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN)); + CLEAR_BIT(USARTx->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN)); +} + +/** + * @} + */ + +/** @defgroup USART_LL_EF_FLAG_Management FLAG_Management + * @{ + */ + +/** + * @brief Check if the USART Parity Error Flag is set or not + * @rmtoll SR PE LL_USART_IsActiveFlag_PE + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_PE(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->SR, USART_SR_PE) == (USART_SR_PE)); +} + +/** + * @brief Check if the USART Framing Error Flag is set or not + * @rmtoll SR FE LL_USART_IsActiveFlag_FE + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_FE(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->SR, USART_SR_FE) == (USART_SR_FE)); +} + +/** + * @brief Check if the USART Noise error detected Flag is set or not + * @rmtoll SR NF LL_USART_IsActiveFlag_NE + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_NE(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->SR, USART_SR_NE) == (USART_SR_NE)); +} + +/** + * @brief Check if the USART OverRun Error Flag is set or not + * @rmtoll SR ORE LL_USART_IsActiveFlag_ORE + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_ORE(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->SR, USART_SR_ORE) == (USART_SR_ORE)); +} + +/** + * @brief Check if the USART IDLE line detected Flag is set or not + * @rmtoll SR IDLE LL_USART_IsActiveFlag_IDLE + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_IDLE(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->SR, USART_SR_IDLE) == (USART_SR_IDLE)); +} + +/** + * @brief Check if the USART Read Data Register Not Empty Flag is set or not + * @rmtoll SR RXNE LL_USART_IsActiveFlag_RXNE + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_RXNE(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->SR, USART_SR_RXNE) == (USART_SR_RXNE)); +} + +/** + * @brief Check if the USART Transmission Complete Flag is set or not + * @rmtoll SR TC LL_USART_IsActiveFlag_TC + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_TC(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->SR, USART_SR_TC) == (USART_SR_TC)); +} + +/** + * @brief Check if the USART Transmit Data Register Empty Flag is set or not + * @rmtoll SR TXE LL_USART_IsActiveFlag_TXE + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_TXE(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->SR, USART_SR_TXE) == (USART_SR_TXE)); +} + +/** + * @brief Check if the USART LIN Break Detection Flag is set or not + * @note Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not + * LIN feature is supported by the USARTx instance. + * @rmtoll SR LBD LL_USART_IsActiveFlag_LBD + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_LBD(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->SR, USART_SR_LBD) == (USART_SR_LBD)); +} + +/** + * @brief Check if the USART CTS Flag is set or not + * @note Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not + * Hardware Flow control feature is supported by the USARTx instance. + * @rmtoll SR CTS LL_USART_IsActiveFlag_nCTS + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_nCTS(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->SR, USART_SR_CTS) == (USART_SR_CTS)); +} + +/** + * @brief Check if the USART Send Break Flag is set or not + * @rmtoll CR1 SBK LL_USART_IsActiveFlag_SBK + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_SBK(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR1, USART_CR1_SBK) == (USART_CR1_SBK)); +} + +/** + * @brief Check if the USART Receive Wake Up from mute mode Flag is set or not + * @rmtoll CR1 RWU LL_USART_IsActiveFlag_RWU + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsActiveFlag_RWU(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR1, USART_CR1_RWU) == (USART_CR1_RWU)); +} + +/** + * @brief Clear Parity Error Flag + * @note Clearing this flag is done by a read access to the USARTx_SR + * register followed by a read access to the USARTx_DR register. + * @note Please also consider that when clearing this flag, other flags as + * NE, FE, ORE, IDLE would also be cleared. + * @rmtoll SR PE LL_USART_ClearFlag_PE + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ClearFlag_PE(USART_TypeDef *USARTx) +{ + __IO uint32_t tmpreg; + tmpreg = USARTx->SR; + (void) tmpreg; + tmpreg = USARTx->DR; + (void) tmpreg; +} + +/** + * @brief Clear Framing Error Flag + * @note Clearing this flag is done by a read access to the USARTx_SR + * register followed by a read access to the USARTx_DR register. + * @note Please also consider that when clearing this flag, other flags as + * PE, NE, ORE, IDLE would also be cleared. + * @rmtoll SR FE LL_USART_ClearFlag_FE + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ClearFlag_FE(USART_TypeDef *USARTx) +{ + __IO uint32_t tmpreg; + tmpreg = USARTx->SR; + (void) tmpreg; + tmpreg = USARTx->DR; + (void) tmpreg; +} + +/** + * @brief Clear Noise detected Flag + * @note Clearing this flag is done by a read access to the USARTx_SR + * register followed by a read access to the USARTx_DR register. + * @note Please also consider that when clearing this flag, other flags as + * PE, FE, ORE, IDLE would also be cleared. + * @rmtoll SR NF LL_USART_ClearFlag_NE + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ClearFlag_NE(USART_TypeDef *USARTx) +{ + __IO uint32_t tmpreg; + tmpreg = USARTx->SR; + (void) tmpreg; + tmpreg = USARTx->DR; + (void) tmpreg; +} + +/** + * @brief Clear OverRun Error Flag + * @note Clearing this flag is done by a read access to the USARTx_SR + * register followed by a read access to the USARTx_DR register. + * @note Please also consider that when clearing this flag, other flags as + * PE, NE, FE, IDLE would also be cleared. + * @rmtoll SR ORE LL_USART_ClearFlag_ORE + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ClearFlag_ORE(USART_TypeDef *USARTx) +{ + __IO uint32_t tmpreg; + tmpreg = USARTx->SR; + (void) tmpreg; + tmpreg = USARTx->DR; + (void) tmpreg; +} + +/** + * @brief Clear IDLE line detected Flag + * @note Clearing this flag is done by a read access to the USARTx_SR + * register followed by a read access to the USARTx_DR register. + * @note Please also consider that when clearing this flag, other flags as + * PE, NE, FE, ORE would also be cleared. + * @rmtoll SR IDLE LL_USART_ClearFlag_IDLE + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ClearFlag_IDLE(USART_TypeDef *USARTx) +{ + __IO uint32_t tmpreg; + tmpreg = USARTx->SR; + (void) tmpreg; + tmpreg = USARTx->DR; + (void) tmpreg; +} + +/** + * @brief Clear Transmission Complete Flag + * @rmtoll SR TC LL_USART_ClearFlag_TC + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ClearFlag_TC(USART_TypeDef *USARTx) +{ + WRITE_REG(USARTx->SR , ~(USART_SR_TC)); +} + +/** + * @brief Clear RX Not Empty Flag + * @rmtoll SR RXNE LL_USART_ClearFlag_RXNE + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ClearFlag_RXNE(USART_TypeDef *USARTx) +{ + WRITE_REG(USARTx->SR , ~(USART_SR_RXNE)); +} + +/** + * @brief Clear LIN Break Detection Flag + * @note Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not + * LIN feature is supported by the USARTx instance. + * @rmtoll SR LBD LL_USART_ClearFlag_LBD + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ClearFlag_LBD(USART_TypeDef *USARTx) +{ + WRITE_REG(USARTx->SR , ~(USART_SR_LBD)); +} + +/** + * @brief Clear CTS Interrupt Flag + * @note Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not + * Hardware Flow control feature is supported by the USARTx instance. + * @rmtoll SR CTS LL_USART_ClearFlag_nCTS + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_ClearFlag_nCTS(USART_TypeDef *USARTx) +{ + WRITE_REG(USARTx->SR , ~(USART_SR_CTS)); +} + +/** + * @} + */ + +/** @defgroup USART_LL_EF_IT_Management IT_Management + * @{ + */ + +/** + * @brief Enable IDLE Interrupt + * @rmtoll CR1 IDLEIE LL_USART_EnableIT_IDLE + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableIT_IDLE(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR1, USART_CR1_IDLEIE); +} + +/** + * @brief Enable RX Not Empty Interrupt + * @rmtoll CR1 RXNEIE LL_USART_EnableIT_RXNE + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableIT_RXNE(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR1, USART_CR1_RXNEIE); +} + +/** + * @brief Enable Transmission Complete Interrupt + * @rmtoll CR1 TCIE LL_USART_EnableIT_TC + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableIT_TC(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR1, USART_CR1_TCIE); +} + +/** + * @brief Enable TX Empty Interrupt + * @rmtoll CR1 TXEIE LL_USART_EnableIT_TXE + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableIT_TXE(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR1, USART_CR1_TXEIE); +} + +/** + * @brief Enable Parity Error Interrupt + * @rmtoll CR1 PEIE LL_USART_EnableIT_PE + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableIT_PE(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR1, USART_CR1_PEIE); +} + +/** + * @brief Enable LIN Break Detection Interrupt + * @note Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not + * LIN feature is supported by the USARTx instance. + * @rmtoll CR2 LBDIE LL_USART_EnableIT_LBD + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableIT_LBD(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR2, USART_CR2_LBDIE); +} + +/** + * @brief Enable Error Interrupt + * @note When set, Error Interrupt Enable Bit is enabling interrupt generation in case of a framing + * error, overrun error or noise flag (FE=1 or ORE=1 or NF=1 in the USARTx_SR register). + * 0: Interrupt is inhibited + * 1: An interrupt is generated when FE=1 or ORE=1 or NF=1 in the USARTx_SR register. + * @rmtoll CR3 EIE LL_USART_EnableIT_ERROR + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableIT_ERROR(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR3, USART_CR3_EIE); +} + +/** + * @brief Enable CTS Interrupt + * @note Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not + * Hardware Flow control feature is supported by the USARTx instance. + * @rmtoll CR3 CTSIE LL_USART_EnableIT_CTS + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableIT_CTS(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR3, USART_CR3_CTSIE); +} + +/** + * @brief Disable IDLE Interrupt + * @rmtoll CR1 IDLEIE LL_USART_DisableIT_IDLE + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableIT_IDLE(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR1, USART_CR1_IDLEIE); +} + +/** + * @brief Disable RX Not Empty Interrupt + * @rmtoll CR1 RXNEIE LL_USART_DisableIT_RXNE + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableIT_RXNE(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR1, USART_CR1_RXNEIE); +} + +/** + * @brief Disable Transmission Complete Interrupt + * @rmtoll CR1 TCIE LL_USART_DisableIT_TC + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableIT_TC(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR1, USART_CR1_TCIE); +} + +/** + * @brief Disable TX Empty Interrupt + * @rmtoll CR1 TXEIE LL_USART_DisableIT_TXE + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableIT_TXE(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR1, USART_CR1_TXEIE); +} + +/** + * @brief Disable Parity Error Interrupt + * @rmtoll CR1 PEIE LL_USART_DisableIT_PE + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableIT_PE(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR1, USART_CR1_PEIE); +} + +/** + * @brief Disable LIN Break Detection Interrupt + * @note Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not + * LIN feature is supported by the USARTx instance. + * @rmtoll CR2 LBDIE LL_USART_DisableIT_LBD + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableIT_LBD(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR2, USART_CR2_LBDIE); +} + +/** + * @brief Disable Error Interrupt + * @note When set, Error Interrupt Enable Bit is enabling interrupt generation in case of a framing + * error, overrun error or noise flag (FE=1 or ORE=1 or NF=1 in the USARTx_SR register). + * 0: Interrupt is inhibited + * 1: An interrupt is generated when FE=1 or ORE=1 or NF=1 in the USARTx_SR register. + * @rmtoll CR3 EIE LL_USART_DisableIT_ERROR + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableIT_ERROR(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR3, USART_CR3_EIE); +} + +/** + * @brief Disable CTS Interrupt + * @note Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not + * Hardware Flow control feature is supported by the USARTx instance. + * @rmtoll CR3 CTSIE LL_USART_DisableIT_CTS + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableIT_CTS(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR3, USART_CR3_CTSIE); +} + +/** + * @brief Check if the USART IDLE Interrupt source is enabled or disabled. + * @rmtoll CR1 IDLEIE LL_USART_IsEnabledIT_IDLE + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_IDLE(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR1, USART_CR1_IDLEIE) == (USART_CR1_IDLEIE)); +} + +/** + * @brief Check if the USART RX Not Empty Interrupt is enabled or disabled. + * @rmtoll CR1 RXNEIE LL_USART_IsEnabledIT_RXNE + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_RXNE(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR1, USART_CR1_RXNEIE) == (USART_CR1_RXNEIE)); +} + +/** + * @brief Check if the USART Transmission Complete Interrupt is enabled or disabled. + * @rmtoll CR1 TCIE LL_USART_IsEnabledIT_TC + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_TC(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR1, USART_CR1_TCIE) == (USART_CR1_TCIE)); +} + +/** + * @brief Check if the USART TX Empty Interrupt is enabled or disabled. + * @rmtoll CR1 TXEIE LL_USART_IsEnabledIT_TXE + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_TXE(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR1, USART_CR1_TXEIE) == (USART_CR1_TXEIE)); +} + +/** + * @brief Check if the USART Parity Error Interrupt is enabled or disabled. + * @rmtoll CR1 PEIE LL_USART_IsEnabledIT_PE + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_PE(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR1, USART_CR1_PEIE) == (USART_CR1_PEIE)); +} + +/** + * @brief Check if the USART LIN Break Detection Interrupt is enabled or disabled. + * @note Macro @ref IS_UART_LIN_INSTANCE(USARTx) can be used to check whether or not + * LIN feature is supported by the USARTx instance. + * @rmtoll CR2 LBDIE LL_USART_IsEnabledIT_LBD + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_LBD(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR2, USART_CR2_LBDIE) == (USART_CR2_LBDIE)); +} + +/** + * @brief Check if the USART Error Interrupt is enabled or disabled. + * @rmtoll CR3 EIE LL_USART_IsEnabledIT_ERROR + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_ERROR(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR3, USART_CR3_EIE) == (USART_CR3_EIE)); +} + +/** + * @brief Check if the USART CTS Interrupt is enabled or disabled. + * @note Macro @ref IS_UART_HWFLOW_INSTANCE(USARTx) can be used to check whether or not + * Hardware Flow control feature is supported by the USARTx instance. + * @rmtoll CR3 CTSIE LL_USART_IsEnabledIT_CTS + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledIT_CTS(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR3, USART_CR3_CTSIE) == (USART_CR3_CTSIE)); +} + +/** + * @} + */ + +/** @defgroup USART_LL_EF_DMA_Management DMA_Management + * @{ + */ + +/** + * @brief Enable DMA Mode for reception + * @rmtoll CR3 DMAR LL_USART_EnableDMAReq_RX + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableDMAReq_RX(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR3, USART_CR3_DMAR); +} + +/** + * @brief Disable DMA Mode for reception + * @rmtoll CR3 DMAR LL_USART_DisableDMAReq_RX + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableDMAReq_RX(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR3, USART_CR3_DMAR); +} + +/** + * @brief Check if DMA Mode is enabled for reception + * @rmtoll CR3 DMAR LL_USART_IsEnabledDMAReq_RX + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledDMAReq_RX(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR3, USART_CR3_DMAR) == (USART_CR3_DMAR)); +} + +/** + * @brief Enable DMA Mode for transmission + * @rmtoll CR3 DMAT LL_USART_EnableDMAReq_TX + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_EnableDMAReq_TX(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR3, USART_CR3_DMAT); +} + +/** + * @brief Disable DMA Mode for transmission + * @rmtoll CR3 DMAT LL_USART_DisableDMAReq_TX + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_DisableDMAReq_TX(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR3, USART_CR3_DMAT); +} + +/** + * @brief Check if DMA Mode is enabled for transmission + * @rmtoll CR3 DMAT LL_USART_IsEnabledDMAReq_TX + * @param USARTx USART Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_USART_IsEnabledDMAReq_TX(USART_TypeDef *USARTx) +{ + return (READ_BIT(USARTx->CR3, USART_CR3_DMAT) == (USART_CR3_DMAT)); +} + +/** + * @brief Get the data register address used for DMA transfer + * @rmtoll DR DR LL_USART_DMA_GetRegAddr + * @note Address of Data Register is valid for both Transmit and Receive transfers. + * @param USARTx USART Instance + * @retval Address of data register + */ +__STATIC_INLINE uint32_t LL_USART_DMA_GetRegAddr(USART_TypeDef *USARTx) +{ + /* return address of DR register */ + return ((uint32_t) &(USARTx->DR)); +} + +/** + * @} + */ + +/** @defgroup USART_LL_EF_Data_Management Data_Management + * @{ + */ + +/** + * @brief Read Receiver Data register (Receive Data value, 8 bits) + * @rmtoll DR DR LL_USART_ReceiveData8 + * @param USARTx USART Instance + * @retval Value between Min_Data=0x00 and Max_Data=0xFF + */ +__STATIC_INLINE uint8_t LL_USART_ReceiveData8(USART_TypeDef *USARTx) +{ + return (uint8_t)(READ_BIT(USARTx->DR, USART_DR_DR)); +} + +/** + * @brief Read Receiver Data register (Receive Data value, 9 bits) + * @rmtoll DR DR LL_USART_ReceiveData9 + * @param USARTx USART Instance + * @retval Value between Min_Data=0x00 and Max_Data=0x1FF + */ +__STATIC_INLINE uint16_t LL_USART_ReceiveData9(USART_TypeDef *USARTx) +{ + return (uint16_t)(READ_BIT(USARTx->DR, USART_DR_DR)); +} + +/** + * @brief Write in Transmitter Data Register (Transmit Data value, 8 bits) + * @rmtoll DR DR LL_USART_TransmitData8 + * @param USARTx USART Instance + * @param Value between Min_Data=0x00 and Max_Data=0xFF + * @retval None + */ +__STATIC_INLINE void LL_USART_TransmitData8(USART_TypeDef *USARTx, uint8_t Value) +{ + USARTx->DR = Value; +} + +/** + * @brief Write in Transmitter Data Register (Transmit Data value, 9 bits) + * @rmtoll DR DR LL_USART_TransmitData9 + * @param USARTx USART Instance + * @param Value between Min_Data=0x00 and Max_Data=0x1FF + * @retval None + */ +__STATIC_INLINE void LL_USART_TransmitData9(USART_TypeDef *USARTx, uint16_t Value) +{ + USARTx->DR = Value & 0x1FFU; +} + +/** + * @} + */ + +/** @defgroup USART_LL_EF_Execution Execution + * @{ + */ + +/** + * @brief Request Break sending + * @rmtoll CR1 SBK LL_USART_RequestBreakSending + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_RequestBreakSending(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR1, USART_CR1_SBK); +} + +/** + * @brief Put USART in Mute mode + * @rmtoll CR1 RWU LL_USART_RequestEnterMuteMode + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_RequestEnterMuteMode(USART_TypeDef *USARTx) +{ + SET_BIT(USARTx->CR1, USART_CR1_RWU); +} + +/** + * @brief Put USART in Active mode + * @rmtoll CR1 RWU LL_USART_RequestExitMuteMode + * @param USARTx USART Instance + * @retval None + */ +__STATIC_INLINE void LL_USART_RequestExitMuteMode(USART_TypeDef *USARTx) +{ + CLEAR_BIT(USARTx->CR1, USART_CR1_RWU); +} + +/** + * @} + */ + +#if defined(USE_FULL_LL_DRIVER) +/** @defgroup USART_LL_EF_Init Initialization and de-initialization functions + * @{ + */ +ErrorStatus LL_USART_DeInit(USART_TypeDef *USARTx); +ErrorStatus LL_USART_Init(USART_TypeDef *USARTx, LL_USART_InitTypeDef *USART_InitStruct); +void LL_USART_StructInit(LL_USART_InitTypeDef *USART_InitStruct); +ErrorStatus LL_USART_ClockInit(USART_TypeDef *USARTx, LL_USART_ClockInitTypeDef *USART_ClockInitStruct); +void LL_USART_ClockStructInit(LL_USART_ClockInitTypeDef *USART_ClockInitStruct); +/** + * @} + */ +#endif /* USE_FULL_LL_DRIVER */ + +/** + * @} + */ + +/** + * @} + */ + +#endif /* USART1 || USART2 || USART3 || USART6 || UART4 || UART5 || UART7 || UART8 || UART9 || UART10 */ + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + +#endif /* __STM32F4xx_LL_USART_H */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/