/** ****************************************************************************** * @file stm32f4xx_hal_irda.h * @author MCD Application Team * @version V1.3.2 * @date 26-June-2015 * @brief Header file of IRDA HAL module. ****************************************************************************** * @attention * *

© COPYRIGHT(c) 2015 STMicroelectronics

* * 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_HAL_IRDA_H #define __STM32F4xx_HAL_IRDA_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include "stm32f4xx_hal_def.h" /** @addtogroup STM32F4xx_HAL_Driver * @{ */ /** @addtogroup IRDA * @{ */ /* Exported types ------------------------------------------------------------*/ /** @defgroup IRDA_Exported_Types IRDA Exported Types * @{ */ /** * @brief IRDA Init Structure definition */ typedef struct { uint32_t BaudRate; /*!< This member configures the IRDA communication baud rate. The baud rate is computed using the following formula: - IntegerDivider = ((PCLKx) / (8 * (hirda->Init.BaudRate))) - FractionalDivider = ((IntegerDivider - ((uint32_t) IntegerDivider)) * 8) + 0.5 */ uint32_t WordLength; /*!< Specifies the number of data bits transmitted or received in a frame. This parameter can be a value of @ref IRDA_Word_Length */ uint32_t Parity; /*!< Specifies the parity mode. This parameter can be a value of @ref IRDA_Parity @note When parity is enabled, the computed parity is inserted at the MSB position of the transmitted data (9th bit when the word length is set to 9 data bits; 8th bit when the word length is set to 8 data bits). */ uint32_t Mode; /*!< Specifies wether the Receive or Transmit mode is enabled or disabled. This parameter can be a value of @ref IRDA_Mode */ uint8_t Prescaler; /*!< Specifies the Prescaler */ uint32_t IrDAMode; /*!< Specifies the IrDA mode This parameter can be a value of @ref IRDA_Low_Power */ }IRDA_InitTypeDef; /** * @brief HAL State structures definition */ typedef enum { HAL_IRDA_STATE_RESET = 0x00, /*!< Peripheral is not yet Initialized */ HAL_IRDA_STATE_READY = 0x01, /*!< Peripheral Initialized and ready for use */ HAL_IRDA_STATE_BUSY = 0x02, /*!< An internal process is ongoing */ HAL_IRDA_STATE_BUSY_TX = 0x12, /*!< Data Transmission process is ongoing */ HAL_IRDA_STATE_BUSY_RX = 0x22, /*!< Data Reception process is ongoing */ HAL_IRDA_STATE_BUSY_TX_RX = 0x32, /*!< Data Transmission and Reception process is ongoing */ HAL_IRDA_STATE_TIMEOUT = 0x03, /*!< Timeout state */ HAL_IRDA_STATE_ERROR = 0x04 /*!< Error */ }HAL_IRDA_StateTypeDef; /** * @brief IRDA handle Structure definition */ typedef struct { USART_TypeDef *Instance; /* USART registers base address */ IRDA_InitTypeDef Init; /* IRDA communication parameters */ uint8_t *pTxBuffPtr; /* Pointer to IRDA Tx transfer Buffer */ uint16_t TxXferSize; /* IRDA Tx Transfer size */ uint16_t TxXferCount; /* IRDA Tx Transfer Counter */ uint8_t *pRxBuffPtr; /* Pointer to IRDA Rx transfer Buffer */ uint16_t RxXferSize; /* IRDA Rx Transfer size */ uint16_t RxXferCount; /* IRDA Rx Transfer Counter */ DMA_HandleTypeDef *hdmatx; /* IRDA Tx DMA Handle parameters */ DMA_HandleTypeDef *hdmarx; /* IRDA Rx DMA Handle parameters */ HAL_LockTypeDef Lock; /* Locking object */ __IO HAL_IRDA_StateTypeDef State; /* IRDA communication state */ __IO uint32_t ErrorCode; /* IRDA Error code */ }IRDA_HandleTypeDef; /** * @} */ /* Exported constants --------------------------------------------------------*/ /** @defgroup IRDA_Exported_Constants IRDA Exported constants * @{ */ /** @defgroup IRDA_Error_Code IRDA Error Code * @brief IRDA Error Code * @{ */ #define HAL_IRDA_ERROR_NONE ((uint32_t)0x00000000) /*!< No error */ #define HAL_IRDA_ERROR_PE ((uint32_t)0x00000001) /*!< Parity error */ #define HAL_IRDA_ERROR_NE ((uint32_t)0x00000002) /*!< Noise error */ #define HAL_IRDA_ERROR_FE ((uint32_t)0x00000004) /*!< Frame error */ #define HAL_IRDA_ERROR_ORE ((uint32_t)0x00000008) /*!< Overrun error */ #define HAL_IRDA_ERROR_DMA ((uint32_t)0x00000010) /*!< DMA transfer error */ /** * @} */ /** @defgroup IRDA_Word_Length IRDA Word Length * @{ */ #define IRDA_WORDLENGTH_8B ((uint32_t)0x00000000) #define IRDA_WORDLENGTH_9B ((uint32_t)USART_CR1_M) /** * @} */ /** @defgroup IRDA_Parity IRDA Parity * @{ */ #define IRDA_PARITY_NONE ((uint32_t)0x00000000) #define IRDA_PARITY_EVEN ((uint32_t)USART_CR1_PCE) #define IRDA_PARITY_ODD ((uint32_t)(USART_CR1_PCE | USART_CR1_PS)) /** * @} */ /** @defgroup IRDA_Mode IRDA Transfer Mode * @{ */ #define IRDA_MODE_RX ((uint32_t)USART_CR1_RE) #define IRDA_MODE_TX ((uint32_t)USART_CR1_TE) #define IRDA_MODE_TX_RX ((uint32_t)(USART_CR1_TE |USART_CR1_RE)) /** * @} */ /** @defgroup IRDA_Low_Power IRDA Low Power * @{ */ #define IRDA_POWERMODE_LOWPOWER ((uint32_t)USART_CR3_IRLP) #define IRDA_POWERMODE_NORMAL ((uint32_t)0x00000000) /** * @} */ /** @defgroup IRDA_Flags IRDA Flags * Elements values convention: 0xXXXX * - 0xXXXX : Flag mask in the SR register * @{ */ #define IRDA_FLAG_TXE ((uint32_t)0x00000080) #define IRDA_FLAG_TC ((uint32_t)0x00000040) #define IRDA_FLAG_RXNE ((uint32_t)0x00000020) #define IRDA_FLAG_IDLE ((uint32_t)0x00000010) #define IRDA_FLAG_ORE ((uint32_t)0x00000008) #define IRDA_FLAG_NE ((uint32_t)0x00000004) #define IRDA_FLAG_FE ((uint32_t)0x00000002) #define IRDA_FLAG_PE ((uint32_t)0x00000001) /** * @} */ /** @defgroup IRDA_Interrupt_definition IRDA Interrupt Definitions * Elements values convention: 0xY000XXXX * - XXXX : Interrupt mask in the XX register * - Y : Interrupt source register (2bits) * - 01: CR1 register * - 10: CR2 register * - 11: CR3 register * @{ */ #define IRDA_IT_PE ((uint32_t)(IRDA_CR1_REG_INDEX << 28 | USART_CR1_PEIE)) #define IRDA_IT_TXE ((uint32_t)(IRDA_CR1_REG_INDEX << 28 | USART_CR1_TXEIE)) #define IRDA_IT_TC ((uint32_t)(IRDA_CR1_REG_INDEX << 28 | USART_CR1_TCIE)) #define IRDA_IT_RXNE ((uint32_t)(IRDA_CR1_REG_INDEX << 28 | USART_CR1_RXNEIE)) #define IRDA_IT_IDLE ((uint32_t)(IRDA_CR1_REG_INDEX << 28 | USART_CR1_IDLEIE)) #define IRDA_IT_LBD ((uint32_t)(IRDA_CR2_REG_INDEX << 28 | USART_CR2_LBDIE)) #define IRDA_IT_CTS ((uint32_t)(IRDA_CR3_REG_INDEX << 28 | USART_CR3_CTSIE)) #define IRDA_IT_ERR ((uint32_t)(IRDA_CR3_REG_INDEX << 28 | USART_CR3_EIE)) /** * @} */ /** * @} */ /* Exported macro ------------------------------------------------------------*/ /** @defgroup IRDA_Exported_Macros IRDA Exported Macros * @{ */ /** @brief Reset IRDA handle state * @param __HANDLE__: specifies the USART Handle. * This parameter can be USARTx where x: 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or * UART peripheral. * @retval None */ #define __HAL_IRDA_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_IRDA_STATE_RESET) /** @brief Flushs the IRDA DR register * @param __HANDLE__: specifies the USART Handle. * This parameter can be USARTx where x: 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or * UART peripheral. */ #define __HAL_IRDA_FLUSH_DRREGISTER(__HANDLE__) ((__HANDLE__)->Instance->DR) /** @brief Checks whether the specified IRDA flag is set or not. * @param __HANDLE__: specifies the USART Handle. * This parameter can be USARTx where x: 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or * UART peripheral. * @param __FLAG__: specifies the flag to check. * This parameter can be one of the following values: * @arg IRDA_FLAG_TXE: Transmit data register empty flag * @arg IRDA_FLAG_TC: Transmission Complete flag * @arg IRDA_FLAG_RXNE: Receive data register not empty flag * @arg IRDA_FLAG_IDLE: Idle Line detection flag * @arg IRDA_FLAG_ORE: OverRun Error flag * @arg IRDA_FLAG_NE: Noise Error flag * @arg IRDA_FLAG_FE: Framing Error flag * @arg IRDA_FLAG_PE: Parity Error flag * @retval The new state of __FLAG__ (TRUE or FALSE). */ #define __HAL_IRDA_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__)) /** @brief Clears the specified IRDA pending flag. * @param __HANDLE__: specifies the USART Handle. * This parameter can be USARTx where x: 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or * UART peripheral. * @param __FLAG__: specifies the flag to check. * This parameter can be any combination of the following values: * @arg IRDA_FLAG_TC: Transmission Complete flag. * @arg IRDA_FLAG_RXNE: Receive data register not empty flag. * * @note PE (Parity error), FE (Framing error), NE (Noise error), ORE (OverRun * error) and IDLE (Idle line detected) flags are cleared by software * sequence: a read operation to USART_SR register followed by a read * operation to USART_DR register. * @note RXNE flag can be also cleared by a read to the USART_DR register. * @note TC flag can be also cleared by software sequence: a read operation to * USART_SR register followed by a write operation to USART_DR register. * @note TXE flag is cleared only by a write to the USART_DR register. * * @retval None */ #define __HAL_IRDA_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR = ~(__FLAG__)) /** @brief Clear the IRDA PE pending flag. * @param __HANDLE__: specifies the USART Handle. * This parameter can be USARTx where x: 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or * UART peripheral. * @retval None */ #define __HAL_IRDA_CLEAR_PEFLAG(__HANDLE__) \ do{ \ __IO uint32_t tmpreg; \ tmpreg = (__HANDLE__)->Instance->SR; \ UNUSED(tmpreg); \ } while(0) /** @brief Clear the IRDA FE pending flag. * @param __HANDLE__: specifies the USART Handle. * This parameter can be USARTx where x: 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or * UART peripheral. * @retval None */ #define __HAL_IRDA_CLEAR_FEFLAG(__HANDLE__) __HAL_IRDA_CLEAR_PEFLAG(__HANDLE__) /** @brief Clear the IRDA NE pending flag. * @param __HANDLE__: specifies the USART Handle. * This parameter can be USARTx where x: 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or * UART peripheral. * @retval None */ #define __HAL_IRDA_CLEAR_NEFLAG(__HANDLE__) __HAL_IRDA_CLEAR_PEFLAG(__HANDLE__) /** @brief Clear the IRDA ORE pending flag. * @param __HANDLE__: specifies the USART Handle. * This parameter can be USARTx where x: 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or * UART peripheral. * @retval None */ #define __HAL_IRDA_CLEAR_OREFLAG(__HANDLE__) __HAL_IRDA_CLEAR_PEFLAG(__HANDLE__) /** @brief Clear the IRDA IDLE pending flag. * @param __HANDLE__: specifies the USART Handle. * This parameter can be USARTx where x: 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or * UART peripheral. * @retval None */ #define __HAL_IRDA_CLEAR_IDLEFLAG(__HANDLE__) __HAL_IRDA_CLEAR_PEFLAG(__HANDLE__) /** @brief Enables or disables the specified IRDA interrupt. * @param __HANDLE__: specifies the USART Handle. * This parameter can be USARTx where x: 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or * UART peripheral. * @param __INTERRUPT__: specifies the IRDA interrupt source to check. * This parameter can be one of the following values: * @arg IRDA_IT_TXE: Transmit Data Register empty interrupt * @arg IRDA_IT_TC: Transmission complete interrupt * @arg IRDA_IT_RXNE: Receive Data register not empty interrupt * @arg IRDA_IT_IDLE: Idle line detection interrupt * @arg IRDA_IT_PE: Parity Error interrupt * @arg IRDA_IT_ERR: Error interrupt(Frame error, noise error, overrun error) * @retval None */ #define __HAL_IRDA_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28) == 1)? ((__HANDLE__)->Instance->CR1 |= ((__INTERRUPT__) & IRDA_IT_MASK)): \ (((__INTERRUPT__) >> 28) == 2)? ((__HANDLE__)->Instance->CR2 |= ((__INTERRUPT__) & IRDA_IT_MASK)): \ ((__HANDLE__)->Instance->CR3 |= ((__INTERRUPT__) & IRDA_IT_MASK))) #define __HAL_IRDA_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28) == 1)? ((__HANDLE__)->Instance->CR1 &= ~((__INTERRUPT__) & IRDA_IT_MASK)): \ (((__INTERRUPT__) >> 28) == 2)? ((__HANDLE__)->Instance->CR2 &= ~((__INTERRUPT__) & IRDA_IT_MASK)): \ ((__HANDLE__)->Instance->CR3 &= ~ ((__INTERRUPT__) & IRDA_IT_MASK))) /** @brief Checks whether the specified IRDA interrupt has occurred or not. * @param __HANDLE__: specifies the USART Handle. * This parameter can be USARTx where x: 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or * UART peripheral. * @param __IT__: specifies the IRDA interrupt source to check. * This parameter can be one of the following values: * @arg IRDA_IT_TXE: Transmit Data Register empty interrupt * @arg IRDA_IT_TC: Transmission complete interrupt * @arg IRDA_IT_RXNE: Receive Data register not empty interrupt * @arg IRDA_IT_IDLE: Idle line detection interrupt * @arg USART_IT_ERR: Error interrupt * @arg IRDA_IT_PE: Parity Error interrupt * @retval The new state of __IT__ (TRUE or FALSE). */ #define __HAL_IRDA_GET_IT_SOURCE(__HANDLE__, __IT__) (((((__IT__) >> 28) == 1)? (__HANDLE__)->Instance->CR1:(((((uint32_t)(__IT__)) >> 28) == 2)? \ (__HANDLE__)->Instance->CR2 : (__HANDLE__)->Instance->CR3)) & (((uint32_t)(__IT__)) & IRDA_IT_MASK)) /** @brief Macro to enable the IRDA's one bit sample method * @param __HANDLE__: specifies the IRDA Handle. * @retval None */ #define __HAL_IRDA_ONE_BIT_SAMPLE_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3|= USART_CR3_ONEBIT) /** @brief Macro to disable the IRDA's one bit sample method * @param __HANDLE__: specifies the IRDA Handle. * @retval None */ #define __HAL_IRDA_ONE_BIT_SAMPLE_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3 &= (uint16_t)~((uint16_t)USART_CR3_ONEBIT)) /** @brief Enable UART/USART associated to IRDA Handle * @param __HANDLE__: specifies the IRDA Handle. * IRDA Handle selects the USARTx or UARTy peripheral * (USART,UART availability and x,y values depending on device). * @retval None */ #define __HAL_IRDA_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 |= USART_CR1_UE) /** @brief Disable UART/USART associated to IRDA Handle * @param __HANDLE__: specifies the IRDA Handle. * IRDA Handle selects the USARTx or UARTy peripheral * (USART,UART availability and x,y values depending on device). * @retval None */ #define __HAL_IRDA_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 &= ~USART_CR1_UE) /** * @} */ /* Exported functions --------------------------------------------------------*/ /** @addtogroup IRDA_Exported_Functions * @{ */ /** @addtogroup IRDA_Exported_Functions_Group1 * @{ */ /* Initialization/de-initialization functions **********************************/ HAL_StatusTypeDef HAL_IRDA_Init(IRDA_HandleTypeDef *hirda); HAL_StatusTypeDef HAL_IRDA_DeInit(IRDA_HandleTypeDef *hirda); void HAL_IRDA_MspInit(IRDA_HandleTypeDef *hirda); void HAL_IRDA_MspDeInit(IRDA_HandleTypeDef *hirda); /** * @} */ /** @addtogroup IRDA_Exported_Functions_Group2 * @{ */ /* IO operation functions *******************************************************/ HAL_StatusTypeDef HAL_IRDA_Transmit(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size, uint32_t Timeout); HAL_StatusTypeDef HAL_IRDA_Receive(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size, uint32_t Timeout); HAL_StatusTypeDef HAL_IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_IRDA_Receive_IT(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_IRDA_Transmit_DMA(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_IRDA_Receive_DMA(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_IRDA_DMAPause(IRDA_HandleTypeDef *hirda); HAL_StatusTypeDef HAL_IRDA_DMAResume(IRDA_HandleTypeDef *hirda); HAL_StatusTypeDef HAL_IRDA_DMAStop(IRDA_HandleTypeDef *hirda); void HAL_IRDA_IRQHandler(IRDA_HandleTypeDef *hirda); void HAL_IRDA_TxCpltCallback(IRDA_HandleTypeDef *hirda); void HAL_IRDA_RxCpltCallback(IRDA_HandleTypeDef *hirda); void HAL_IRDA_TxHalfCpltCallback(IRDA_HandleTypeDef *hirda); void HAL_IRDA_RxHalfCpltCallback(IRDA_HandleTypeDef *hirda); void HAL_IRDA_ErrorCallback(IRDA_HandleTypeDef *hirda); /** * @} */ /** @addtogroup IRDA_Exported_Functions_Group3 * @{ */ /* Peripheral State functions **************************************************/ HAL_IRDA_StateTypeDef HAL_IRDA_GetState(IRDA_HandleTypeDef *hirda); uint32_t HAL_IRDA_GetError(IRDA_HandleTypeDef *hirda); /** * @} */ /** * @} */ /* Private types -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private constants ---------------------------------------------------------*/ /** @defgroup IRDA_Private_Constants IRDA Private Constants * @{ */ /** @brief IRDA interruptions flag mask * */ #define IRDA_IT_MASK ((uint32_t) USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE | USART_CR1_RXNEIE | \ USART_CR1_IDLEIE | USART_CR2_LBDIE | USART_CR3_CTSIE | USART_CR3_EIE ) #define IRDA_CR1_REG_INDEX 1 #define IRDA_CR2_REG_INDEX 2 #define IRDA_CR3_REG_INDEX 3 /** * @} */ /* Private macros --------------------------------------------------------*/ /** @defgroup IRDA_Private_Macros IRDA Private Macros * @{ */ #define IS_IRDA_WORD_LENGTH(LENGTH) (((LENGTH) == IRDA_WORDLENGTH_8B) || \ ((LENGTH) == IRDA_WORDLENGTH_9B)) #define IS_IRDA_PARITY(PARITY) (((PARITY) == IRDA_PARITY_NONE) || \ ((PARITY) == IRDA_PARITY_EVEN) || \ ((PARITY) == IRDA_PARITY_ODD)) #define IS_IRDA_MODE(MODE) ((((MODE) & (uint32_t)0x0000FFF3) == 0x00) && ((MODE) != (uint32_t)0x000000)) #define IS_IRDA_POWERMODE(MODE) (((MODE) == IRDA_POWERMODE_LOWPOWER) || \ ((MODE) == IRDA_POWERMODE_NORMAL)) #define IS_IRDA_BAUDRATE(BAUDRATE) ((BAUDRATE) < 115201) #define IRDA_DIV(_PCLK_, _BAUD_) (((_PCLK_)*25)/(4*(_BAUD_))) #define IRDA_DIVMANT(_PCLK_, _BAUD_) (IRDA_DIV((_PCLK_), (_BAUD_))/100) #define IRDA_DIVFRAQ(_PCLK_, _BAUD_) (((IRDA_DIV((_PCLK_), (_BAUD_)) - (IRDA_DIVMANT((_PCLK_), (_BAUD_)) * 100)) * 16 + 50) / 100) #define IRDA_BRR(_PCLK_, _BAUD_) ((IRDA_DIVMANT((_PCLK_), (_BAUD_)) << 4)|(IRDA_DIVFRAQ((_PCLK_), (_BAUD_)) & 0x0F)) /** * @} */ /* Private functions ---------------------------------------------------------*/ /** @defgroup IRDA_Private_Functions IRDA Private Functions * @{ */ /** * @} */ /** * @} */ /** * @} */ #ifdef __cplusplus } #endif #endif /* __STM32F4xx_HAL_IRDA_H */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/