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/**
****************************************************************************** * @file stm32f4xx_hal_uart.h * @author MCD Application Team * @brief Header file of UART HAL module. ****************************************************************************** * @attention * * Copyright (c) 2016 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** */
/* Define to prevent recursive inclusion -------------------------------------*/#ifndef __STM32F4xx_HAL_UART_H
#define __STM32F4xx_HAL_UART_H
#ifdef __cplusplus
extern "C" {#endif
/* Includes ------------------------------------------------------------------*/#include "stm32f4xx_hal_def.h"
/** @addtogroup STM32F4xx_HAL_Driver
* @{ */
/** @addtogroup UART
* @{ */
/* Exported types ------------------------------------------------------------*//** @defgroup UART_Exported_Types UART Exported Types
* @{ */
/**
* @brief UART Init Structure definition */typedef struct{ uint32_t BaudRate; /*!< This member configures the UART communication baud rate.
The baud rate is computed using the following formula: - IntegerDivider = ((PCLKx) / (8 * (OVR8+1) * (huart->Init.BaudRate))) - FractionalDivider = ((IntegerDivider - ((uint32_t) IntegerDivider)) * 8 * (OVR8+1)) + 0.5 Where OVR8 is the "oversampling by 8 mode" configuration bit in the CR1 register. */
uint32_t WordLength; /*!< Specifies the number of data bits transmitted or received in a frame.
This parameter can be a value of @ref UART_Word_Length */
uint32_t StopBits; /*!< Specifies the number of stop bits transmitted.
This parameter can be a value of @ref UART_Stop_Bits */
uint32_t Parity; /*!< Specifies the parity mode.
This parameter can be a value of @ref UART_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 whether the Receive or Transmit mode is enabled or disabled.
This parameter can be a value of @ref UART_Mode */
uint32_t HwFlowCtl; /*!< Specifies whether the hardware flow control mode is enabled or disabled.
This parameter can be a value of @ref UART_Hardware_Flow_Control */
uint32_t OverSampling; /*!< Specifies whether the Over sampling 8 is enabled or disabled, to achieve higher speed (up to fPCLK/8).
This parameter can be a value of @ref UART_Over_Sampling */} UART_InitTypeDef;
/**
* @brief HAL UART State structures definition * @note HAL UART State value is a combination of 2 different substates: gState and RxState. * - gState contains UART state information related to global Handle management * and also information related to Tx operations. * gState value coding follow below described bitmap : * b7-b6 Error information * 00 : No Error * 01 : (Not Used) * 10 : Timeout * 11 : Error * b5 Peripheral initialization status * 0 : Reset (Peripheral not initialized) * 1 : Init done (Peripheral initialized. HAL UART Init function already called) * b4-b3 (not used) * xx : Should be set to 00 * b2 Intrinsic process state * 0 : Ready * 1 : Busy (Peripheral busy with some configuration or internal operations) * b1 (not used) * x : Should be set to 0 * b0 Tx state * 0 : Ready (no Tx operation ongoing) * 1 : Busy (Tx operation ongoing) * - RxState contains information related to Rx operations. * RxState value coding follow below described bitmap : * b7-b6 (not used) * xx : Should be set to 00 * b5 Peripheral initialization status * 0 : Reset (Peripheral not initialized) * 1 : Init done (Peripheral initialized) * b4-b2 (not used) * xxx : Should be set to 000 * b1 Rx state * 0 : Ready (no Rx operation ongoing) * 1 : Busy (Rx operation ongoing) * b0 (not used) * x : Should be set to 0. */typedef enum{ HAL_UART_STATE_RESET = 0x00U, /*!< Peripheral is not yet Initialized
Value is allowed for gState and RxState */ HAL_UART_STATE_READY = 0x20U, /*!< Peripheral Initialized and ready for use
Value is allowed for gState and RxState */ HAL_UART_STATE_BUSY = 0x24U, /*!< an internal process is ongoing
Value is allowed for gState only */ HAL_UART_STATE_BUSY_TX = 0x21U, /*!< Data Transmission process is ongoing
Value is allowed for gState only */ HAL_UART_STATE_BUSY_RX = 0x22U, /*!< Data Reception process is ongoing
Value is allowed for RxState only */ HAL_UART_STATE_BUSY_TX_RX = 0x23U, /*!< Data Transmission and Reception process is ongoing
Not to be used for neither gState nor RxState. Value is result of combination (Or) between gState and RxState values */ HAL_UART_STATE_TIMEOUT = 0xA0U, /*!< Timeout state
Value is allowed for gState only */ HAL_UART_STATE_ERROR = 0xE0U /*!< Error
Value is allowed for gState only */} HAL_UART_StateTypeDef;
/**
* @brief HAL UART Reception type definition * @note HAL UART Reception type value aims to identify which type of Reception is ongoing. * This parameter can be a value of @ref UART_Reception_Type_Values : * HAL_UART_RECEPTION_STANDARD = 0x00U, * HAL_UART_RECEPTION_TOIDLE = 0x01U, */typedef uint32_t HAL_UART_RxTypeTypeDef;
/**
* @brief HAL UART Rx Event type definition * @note HAL UART Rx Event type value aims to identify which type of Event has occurred * leading to call of the RxEvent callback. * This parameter can be a value of @ref UART_RxEvent_Type_Values : * HAL_UART_RXEVENT_TC = 0x00U, * HAL_UART_RXEVENT_HT = 0x01U, * HAL_UART_RXEVENT_IDLE = 0x02U, */typedef uint32_t HAL_UART_RxEventTypeTypeDef;
/**
* @brief UART handle Structure definition */typedef struct __UART_HandleTypeDef{ USART_TypeDef *Instance; /*!< UART registers base address */
UART_InitTypeDef Init; /*!< UART communication parameters */
const uint8_t *pTxBuffPtr; /*!< Pointer to UART Tx transfer Buffer */
uint16_t TxXferSize; /*!< UART Tx Transfer size */
__IO uint16_t TxXferCount; /*!< UART Tx Transfer Counter */
uint8_t *pRxBuffPtr; /*!< Pointer to UART Rx transfer Buffer */
uint16_t RxXferSize; /*!< UART Rx Transfer size */
__IO uint16_t RxXferCount; /*!< UART Rx Transfer Counter */
__IO HAL_UART_RxTypeTypeDef ReceptionType; /*!< Type of ongoing reception */
__IO HAL_UART_RxEventTypeTypeDef RxEventType; /*!< Type of Rx Event */
DMA_HandleTypeDef *hdmatx; /*!< UART Tx DMA Handle parameters */
DMA_HandleTypeDef *hdmarx; /*!< UART Rx DMA Handle parameters */
HAL_LockTypeDef Lock; /*!< Locking object */
__IO HAL_UART_StateTypeDef gState; /*!< UART state information related to global Handle management
and also related to Tx operations. This parameter can be a value of @ref HAL_UART_StateTypeDef */
__IO HAL_UART_StateTypeDef RxState; /*!< UART state information related to Rx operations.
This parameter can be a value of @ref HAL_UART_StateTypeDef */
__IO uint32_t ErrorCode; /*!< UART Error code */
#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
void (* TxHalfCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Tx Half Complete Callback */ void (* TxCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Tx Complete Callback */ void (* RxHalfCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Rx Half Complete Callback */ void (* RxCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Rx Complete Callback */ void (* ErrorCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Error Callback */ void (* AbortCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Complete Callback */ void (* AbortTransmitCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Transmit Complete Callback */ void (* AbortReceiveCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Receive Complete Callback */ void (* WakeupCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Wakeup Callback */ void (* RxEventCallback)(struct __UART_HandleTypeDef *huart, uint16_t Pos); /*!< UART Reception Event Callback */
void (* MspInitCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Msp Init callback */ void (* MspDeInitCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Msp DeInit callback */#endif /* USE_HAL_UART_REGISTER_CALLBACKS */
uint16_t USR_DMARxSize; //
uint8_t USR_UartITRxing; uint8_t *USR_UartITRxBuf; uint8_t USR_UartITRxBufCache; int32_t USR_UartITRxBufSize; int32_t USR_UartITRxOff; uint32_t USR_UartITLastRxTicket;} UART_HandleTypeDef;
#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
/**
* @brief HAL UART Callback ID enumeration definition */typedef enum{ HAL_UART_TX_HALFCOMPLETE_CB_ID = 0x00U, /*!< UART Tx Half Complete Callback ID */ HAL_UART_TX_COMPLETE_CB_ID = 0x01U, /*!< UART Tx Complete Callback ID */ HAL_UART_RX_HALFCOMPLETE_CB_ID = 0x02U, /*!< UART Rx Half Complete Callback ID */ HAL_UART_RX_COMPLETE_CB_ID = 0x03U, /*!< UART Rx Complete Callback ID */ HAL_UART_ERROR_CB_ID = 0x04U, /*!< UART Error Callback ID */ HAL_UART_ABORT_COMPLETE_CB_ID = 0x05U, /*!< UART Abort Complete Callback ID */ HAL_UART_ABORT_TRANSMIT_COMPLETE_CB_ID = 0x06U, /*!< UART Abort Transmit Complete Callback ID */ HAL_UART_ABORT_RECEIVE_COMPLETE_CB_ID = 0x07U, /*!< UART Abort Receive Complete Callback ID */ HAL_UART_WAKEUP_CB_ID = 0x08U, /*!< UART Wakeup Callback ID */
HAL_UART_MSPINIT_CB_ID = 0x0BU, /*!< UART MspInit callback ID */ HAL_UART_MSPDEINIT_CB_ID = 0x0CU /*!< UART MspDeInit callback ID */
} HAL_UART_CallbackIDTypeDef;
/**
* @brief HAL UART Callback pointer definition */typedef void (*pUART_CallbackTypeDef)(UART_HandleTypeDef *huart); /*!< pointer to an UART callback function */typedef void (*pUART_RxEventCallbackTypeDef)(struct __UART_HandleTypeDef *huart, uint16_t Pos); /*!< pointer to a UART Rx Event specific callback function */
#endif /* USE_HAL_UART_REGISTER_CALLBACKS */
/**
* @} */
/* Exported constants --------------------------------------------------------*//** @defgroup UART_Exported_Constants UART Exported Constants
* @{ */
/** @defgroup UART_Error_Code UART Error Code
* @{ */#define HAL_UART_ERROR_NONE 0x00000000U /*!< No error */
#define HAL_UART_ERROR_PE 0x00000001U /*!< Parity error */
#define HAL_UART_ERROR_NE 0x00000002U /*!< Noise error */
#define HAL_UART_ERROR_FE 0x00000004U /*!< Frame error */
#define HAL_UART_ERROR_ORE 0x00000008U /*!< Overrun error */
#define HAL_UART_ERROR_DMA 0x00000010U /*!< DMA transfer error */
#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
#define HAL_UART_ERROR_INVALID_CALLBACK 0x00000020U /*!< Invalid Callback error */
#endif /* USE_HAL_UART_REGISTER_CALLBACKS */
/**
* @} */
/** @defgroup UART_Word_Length UART Word Length
* @{ */#define UART_WORDLENGTH_8B 0x00000000U
#define UART_WORDLENGTH_9B ((uint32_t)USART_CR1_M)
/**
* @} */
/** @defgroup UART_Stop_Bits UART Number of Stop Bits
* @{ */#define UART_STOPBITS_1 0x00000000U
#define UART_STOPBITS_2 ((uint32_t)USART_CR2_STOP_1)
/**
* @} */
/** @defgroup UART_Parity UART Parity
* @{ */#define UART_PARITY_NONE 0x00000000U
#define UART_PARITY_EVEN ((uint32_t)USART_CR1_PCE)
#define UART_PARITY_ODD ((uint32_t)(USART_CR1_PCE | USART_CR1_PS))
/**
* @} */
/** @defgroup UART_Hardware_Flow_Control UART Hardware Flow Control
* @{ */#define UART_HWCONTROL_NONE 0x00000000U
#define UART_HWCONTROL_RTS ((uint32_t)USART_CR3_RTSE)
#define UART_HWCONTROL_CTS ((uint32_t)USART_CR3_CTSE)
#define UART_HWCONTROL_RTS_CTS ((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE))
/**
* @} */
/** @defgroup UART_Mode UART Transfer Mode
* @{ */#define UART_MODE_RX ((uint32_t)USART_CR1_RE)
#define UART_MODE_TX ((uint32_t)USART_CR1_TE)
#define UART_MODE_TX_RX ((uint32_t)(USART_CR1_TE | USART_CR1_RE))
/**
* @} */
/** @defgroup UART_State UART State
* @{ */#define UART_STATE_DISABLE 0x00000000U
#define UART_STATE_ENABLE ((uint32_t)USART_CR1_UE)
/**
* @} */
/** @defgroup UART_Over_Sampling UART Over Sampling
* @{ */#define UART_OVERSAMPLING_16 0x00000000U
#define UART_OVERSAMPLING_8 ((uint32_t)USART_CR1_OVER8)
/**
* @} */
/** @defgroup UART_LIN_Break_Detection_Length UART LIN Break Detection Length
* @{ */#define UART_LINBREAKDETECTLENGTH_10B 0x00000000U
#define UART_LINBREAKDETECTLENGTH_11B ((uint32_t)USART_CR2_LBDL)
/**
* @} */
/** @defgroup UART_WakeUp_functions UART Wakeup Functions
* @{ */#define UART_WAKEUPMETHOD_IDLELINE 0x00000000U
#define UART_WAKEUPMETHOD_ADDRESSMARK ((uint32_t)USART_CR1_WAKE)
/**
* @} */
/** @defgroup UART_Flags UART FLags
* Elements values convention: 0xXXXX * - 0xXXXX : Flag mask in the SR register * @{ */#define UART_FLAG_CTS ((uint32_t)USART_SR_CTS)
#define UART_FLAG_LBD ((uint32_t)USART_SR_LBD)
#define UART_FLAG_TXE ((uint32_t)USART_SR_TXE)
#define UART_FLAG_TC ((uint32_t)USART_SR_TC)
#define UART_FLAG_RXNE ((uint32_t)USART_SR_RXNE)
#define UART_FLAG_IDLE ((uint32_t)USART_SR_IDLE)
#define UART_FLAG_ORE ((uint32_t)USART_SR_ORE)
#define UART_FLAG_NE ((uint32_t)USART_SR_NE)
#define UART_FLAG_FE ((uint32_t)USART_SR_FE)
#define UART_FLAG_PE ((uint32_t)USART_SR_PE)
/**
* @} */
/** @defgroup UART_Interrupt_definition UART Interrupt Definitions
* Elements values convention: 0xY000XXXX * - XXXX : Interrupt mask (16 bits) in the Y register * - Y : Interrupt source register (2bits) * - 0001: CR1 register * - 0010: CR2 register * - 0011: CR3 register * @{ */
#define UART_IT_PE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_PEIE))
#define UART_IT_TXE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TXEIE))
#define UART_IT_TC ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TCIE))
#define UART_IT_RXNE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_RXNEIE))
#define UART_IT_IDLE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_IDLEIE))
#define UART_IT_LBD ((uint32_t)(UART_CR2_REG_INDEX << 28U | USART_CR2_LBDIE))
#define UART_IT_CTS ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_CTSIE))
#define UART_IT_ERR ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_EIE))
/**
* @} */
/** @defgroup UART_Reception_Type_Values UART Reception type values
* @{ */#define HAL_UART_RECEPTION_STANDARD (0x00000000U) /*!< Standard reception */
#define HAL_UART_RECEPTION_TOIDLE (0x00000001U) /*!< Reception till completion or IDLE event */
/**
* @} */
/** @defgroup UART_RxEvent_Type_Values UART RxEvent type values
* @{ */#define HAL_UART_RXEVENT_TC (0x00000000U) /*!< RxEvent linked to Transfer Complete event */
#define HAL_UART_RXEVENT_HT (0x00000001U) /*!< RxEvent linked to Half Transfer event */
#define HAL_UART_RXEVENT_IDLE (0x00000002U)
/**
* @} */
/**
* @} */
/* Exported macro ------------------------------------------------------------*//** @defgroup UART_Exported_Macros UART Exported Macros
* @{ */
/** @brief Reset UART handle gstate & RxState
* @param __HANDLE__ specifies the UART Handle. * UART Handle selects the USARTx or UARTy peripheral * (USART,UART availability and x,y values depending on device). * @retval None */#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
#define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__) do{ \
(__HANDLE__)->gState = HAL_UART_STATE_RESET; \ (__HANDLE__)->RxState = HAL_UART_STATE_RESET; \ (__HANDLE__)->MspInitCallback = NULL; \ (__HANDLE__)->MspDeInitCallback = NULL; \ } while(0U)#else
#define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__) do{ \
(__HANDLE__)->gState = HAL_UART_STATE_RESET; \ (__HANDLE__)->RxState = HAL_UART_STATE_RESET; \ } while(0U)#endif /*USE_HAL_UART_REGISTER_CALLBACKS */
/** @brief Flushes the UART DR register
* @param __HANDLE__ specifies the UART Handle. * UART Handle selects the USARTx or UARTy peripheral * (USART,UART availability and x,y values depending on device). */#define __HAL_UART_FLUSH_DRREGISTER(__HANDLE__) ((__HANDLE__)->Instance->DR)
/** @brief Checks whether the specified UART flag is set or not.
* @param __HANDLE__ specifies the UART Handle. * UART Handle selects the USARTx or UARTy peripheral * (USART,UART availability and x,y values depending on device). * @param __FLAG__ specifies the flag to check. * This parameter can be one of the following values: * @arg UART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5) * @arg UART_FLAG_LBD: LIN Break detection flag * @arg UART_FLAG_TXE: Transmit data register empty flag * @arg UART_FLAG_TC: Transmission Complete flag * @arg UART_FLAG_RXNE: Receive data register not empty flag * @arg UART_FLAG_IDLE: Idle Line detection flag * @arg UART_FLAG_ORE: Overrun Error flag * @arg UART_FLAG_NE: Noise Error flag * @arg UART_FLAG_FE: Framing Error flag * @arg UART_FLAG_PE: Parity Error flag * @retval The new state of __FLAG__ (TRUE or FALSE). */#define __HAL_UART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))
/** @brief Clears the specified UART pending flag.
* @param __HANDLE__ specifies the UART Handle. * UART Handle selects the USARTx or UARTy peripheral * (USART,UART availability and x,y values depending on device). * @param __FLAG__ specifies the flag to check. * This parameter can be any combination of the following values: * @arg UART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5). * @arg UART_FLAG_LBD: LIN Break detection flag. * @arg UART_FLAG_TC: Transmission Complete flag. * @arg UART_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_UART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR = ~(__FLAG__))
/** @brief Clears the UART PE pending flag.
* @param __HANDLE__ specifies the UART Handle. * UART Handle selects the USARTx or UARTy peripheral * (USART,UART availability and x,y values depending on device). * @retval None */#define __HAL_UART_CLEAR_PEFLAG(__HANDLE__) \
do{ \ __IO uint32_t tmpreg = 0x00U; \ tmpreg = (__HANDLE__)->Instance->SR; \ tmpreg = (__HANDLE__)->Instance->DR; \ UNUSED(tmpreg); \ } while(0U)
/** @brief Clears the UART FE pending flag.
* @param __HANDLE__ specifies the UART Handle. * UART Handle selects the USARTx or UARTy peripheral * (USART,UART availability and x,y values depending on device). * @retval None */#define __HAL_UART_CLEAR_FEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
/** @brief Clears the UART NE pending flag.
* @param __HANDLE__ specifies the UART Handle. * UART Handle selects the USARTx or UARTy peripheral * (USART,UART availability and x,y values depending on device). * @retval None */#define __HAL_UART_CLEAR_NEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
/** @brief Clears the UART ORE pending flag.
* @param __HANDLE__ specifies the UART Handle. * UART Handle selects the USARTx or UARTy peripheral * (USART,UART availability and x,y values depending on device). * @retval None */#define __HAL_UART_CLEAR_OREFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
/** @brief Clears the UART IDLE pending flag.
* @param __HANDLE__ specifies the UART Handle. * UART Handle selects the USARTx or UARTy peripheral * (USART,UART availability and x,y values depending on device). * @retval None */#define __HAL_UART_CLEAR_IDLEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
/** @brief Enable the specified UART interrupt.
* @param __HANDLE__ specifies the UART Handle. * UART Handle selects the USARTx or UARTy peripheral * (USART,UART availability and x,y values depending on device). * @param __INTERRUPT__ specifies the UART interrupt source to enable. * This parameter can be one of the following values: * @arg UART_IT_CTS: CTS change interrupt * @arg UART_IT_LBD: LIN Break detection interrupt * @arg UART_IT_TXE: Transmit Data Register empty interrupt * @arg UART_IT_TC: Transmission complete interrupt * @arg UART_IT_RXNE: Receive Data register not empty interrupt * @arg UART_IT_IDLE: Idle line detection interrupt * @arg UART_IT_PE: Parity Error interrupt * @arg UART_IT_ERR: Error interrupt(Frame error, noise error, overrun error) * @retval None */#define __HAL_UART_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28U) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 |= ((__INTERRUPT__) & UART_IT_MASK)): \
(((__INTERRUPT__) >> 28U) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 |= ((__INTERRUPT__) & UART_IT_MASK)): \ ((__HANDLE__)->Instance->CR3 |= ((__INTERRUPT__) & UART_IT_MASK)))
/** @brief Disable the specified UART interrupt.
* @param __HANDLE__ specifies the UART Handle. * UART Handle selects the USARTx or UARTy peripheral * (USART,UART availability and x,y values depending on device). * @param __INTERRUPT__ specifies the UART interrupt source to disable. * This parameter can be one of the following values: * @arg UART_IT_CTS: CTS change interrupt * @arg UART_IT_LBD: LIN Break detection interrupt * @arg UART_IT_TXE: Transmit Data Register empty interrupt * @arg UART_IT_TC: Transmission complete interrupt * @arg UART_IT_RXNE: Receive Data register not empty interrupt * @arg UART_IT_IDLE: Idle line detection interrupt * @arg UART_IT_PE: Parity Error interrupt * @arg UART_IT_ERR: Error interrupt(Frame error, noise error, overrun error) * @retval None */#define __HAL_UART_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28U) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 &= ~((__INTERRUPT__) & UART_IT_MASK)): \
(((__INTERRUPT__) >> 28U) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 &= ~((__INTERRUPT__) & UART_IT_MASK)): \ ((__HANDLE__)->Instance->CR3 &= ~ ((__INTERRUPT__) & UART_IT_MASK)))
/** @brief Checks whether the specified UART interrupt source is enabled or not.
* @param __HANDLE__ specifies the UART Handle. * UART Handle selects the USARTx or UARTy peripheral * (USART,UART availability and x,y values depending on device). * @param __IT__ specifies the UART interrupt source to check. * This parameter can be one of the following values: * @arg UART_IT_CTS: CTS change interrupt (not available for UART4 and UART5) * @arg UART_IT_LBD: LIN Break detection interrupt * @arg UART_IT_TXE: Transmit Data Register empty interrupt * @arg UART_IT_TC: Transmission complete interrupt * @arg UART_IT_RXNE: Receive Data register not empty interrupt * @arg UART_IT_IDLE: Idle line detection interrupt * @arg UART_IT_ERR: Error interrupt * @retval The new state of __IT__ (TRUE or FALSE). */#define __HAL_UART_GET_IT_SOURCE(__HANDLE__, __IT__) (((((__IT__) >> 28U) == UART_CR1_REG_INDEX)? (__HANDLE__)->Instance->CR1:(((((uint32_t)(__IT__)) >> 28U) == UART_CR2_REG_INDEX)? \
(__HANDLE__)->Instance->CR2 : (__HANDLE__)->Instance->CR3)) & (((uint32_t)(__IT__)) & UART_IT_MASK))
/** @brief Enable CTS flow control
* @note This macro allows to enable CTS hardware flow control for a given UART instance, * without need to call HAL_UART_Init() function. * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. * @note As macro is expected to be used for modifying CTS Hw flow control feature activation, without need * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : * - UART instance should have already been initialised (through call of HAL_UART_Init() ) * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). * @param __HANDLE__ specifies the UART Handle. * The Handle Instance can be any USARTx (supporting the HW Flow control feature). * It is used to select the USART peripheral (USART availability and x value depending on device). * @retval None */#define __HAL_UART_HWCONTROL_CTS_ENABLE(__HANDLE__) \
do{ \ ATOMIC_SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE); \ (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_CTSE; \ } while(0U)
/** @brief Disable CTS flow control
* @note This macro allows to disable CTS hardware flow control for a given UART instance, * without need to call HAL_UART_Init() function. * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. * @note As macro is expected to be used for modifying CTS Hw flow control feature activation, without need * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : * - UART instance should have already been initialised (through call of HAL_UART_Init() ) * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). * @param __HANDLE__ specifies the UART Handle. * The Handle Instance can be any USARTx (supporting the HW Flow control feature). * It is used to select the USART peripheral (USART availability and x value depending on device). * @retval None */#define __HAL_UART_HWCONTROL_CTS_DISABLE(__HANDLE__) \
do{ \ ATOMIC_CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE); \ (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_CTSE); \ } while(0U)
/** @brief Enable RTS flow control
* This macro allows to enable RTS hardware flow control for a given UART instance, * without need to call HAL_UART_Init() function. * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. * @note As macro is expected to be used for modifying RTS Hw flow control feature activation, without need * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : * - UART instance should have already been initialised (through call of HAL_UART_Init() ) * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). * @param __HANDLE__ specifies the UART Handle. * The Handle Instance can be any USARTx (supporting the HW Flow control feature). * It is used to select the USART peripheral (USART availability and x value depending on device). * @retval None */#define __HAL_UART_HWCONTROL_RTS_ENABLE(__HANDLE__) \
do{ \ ATOMIC_SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE); \ (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_RTSE; \ } while(0U)
/** @brief Disable RTS flow control
* This macro allows to disable RTS hardware flow control for a given UART instance, * without need to call HAL_UART_Init() function. * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. * @note As macro is expected to be used for modifying RTS Hw flow control feature activation, without need * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : * - UART instance should have already been initialised (through call of HAL_UART_Init() ) * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). * @param __HANDLE__ specifies the UART Handle. * The Handle Instance can be any USARTx (supporting the HW Flow control feature). * It is used to select the USART peripheral (USART availability and x value depending on device). * @retval None */#define __HAL_UART_HWCONTROL_RTS_DISABLE(__HANDLE__) \
do{ \ ATOMIC_CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE);\ (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_RTSE); \ } while(0U)
/** @brief Macro to enable the UART's one bit sample method
* @param __HANDLE__ specifies the UART Handle. * @retval None */#define __HAL_UART_ONE_BIT_SAMPLE_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3|= USART_CR3_ONEBIT)
/** @brief Macro to disable the UART's one bit sample method
* @param __HANDLE__ specifies the UART Handle. * @retval None */#define __HAL_UART_ONE_BIT_SAMPLE_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3\
&= (uint16_t)~((uint16_t)USART_CR3_ONEBIT))
/** @brief Enable UART
* @param __HANDLE__ specifies the UART Handle. * @retval None */#define __HAL_UART_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 |= USART_CR1_UE)
/** @brief Disable UART
* @param __HANDLE__ specifies the UART Handle. * @retval None */#define __HAL_UART_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 &= ~USART_CR1_UE)
/**
* @} */
/* Exported functions --------------------------------------------------------*//** @addtogroup UART_Exported_Functions
* @{ */
/** @addtogroup UART_Exported_Functions_Group1 Initialization and de-initialization functions
* @{ */
/* Initialization/de-initialization functions **********************************/HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart);HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart);HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength);HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod);HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart);void HAL_UART_MspInit(UART_HandleTypeDef *huart);void HAL_UART_MspDeInit(UART_HandleTypeDef *huart);
/* Callbacks Register/UnRegister functions ***********************************/#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
HAL_StatusTypeDef HAL_UART_RegisterCallback(UART_HandleTypeDef *huart, HAL_UART_CallbackIDTypeDef CallbackID, pUART_CallbackTypeDef pCallback);HAL_StatusTypeDef HAL_UART_UnRegisterCallback(UART_HandleTypeDef *huart, HAL_UART_CallbackIDTypeDef CallbackID);
HAL_StatusTypeDef HAL_UART_RegisterRxEventCallback(UART_HandleTypeDef *huart, pUART_RxEventCallbackTypeDef pCallback);HAL_StatusTypeDef HAL_UART_UnRegisterRxEventCallback(UART_HandleTypeDef *huart);#endif /* USE_HAL_UART_REGISTER_CALLBACKS */
/**
* @} */
/** @addtogroup UART_Exported_Functions_Group2 IO operation functions
* @{ */
/* IO operation functions *******************************************************/HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, const uint8_t *pData, uint16_t Size, uint32_t Timeout);HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout);HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, const uint8_t *pData, uint16_t Size);HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, const uint8_t *pData, uint16_t Size);HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart);HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart);HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart);
HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint16_t *RxLen, uint32_t Timeout);HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
HAL_UART_RxEventTypeTypeDef HAL_UARTEx_GetRxEventType(UART_HandleTypeDef *huart);
/* Transfer Abort functions */HAL_StatusTypeDef HAL_UART_Abort(UART_HandleTypeDef *huart);HAL_StatusTypeDef HAL_UART_AbortTransmit(UART_HandleTypeDef *huart);HAL_StatusTypeDef HAL_UART_AbortReceive(UART_HandleTypeDef *huart);HAL_StatusTypeDef HAL_UART_Abort_IT(UART_HandleTypeDef *huart);HAL_StatusTypeDef HAL_UART_AbortTransmit_IT(UART_HandleTypeDef *huart);HAL_StatusTypeDef HAL_UART_AbortReceive_IT(UART_HandleTypeDef *huart);
void HAL_UART_IRQHandler(UART_HandleTypeDef *huart);void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart);void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart);void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart);void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart);void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart);void HAL_UART_AbortCpltCallback(UART_HandleTypeDef *huart);void HAL_UART_AbortTransmitCpltCallback(UART_HandleTypeDef *huart);void HAL_UART_AbortReceiveCpltCallback(UART_HandleTypeDef *huart);
void HAL_UARTEx_RxEventCallback(UART_HandleTypeDef *huart, uint16_t Size);
/**
* @} */
/** @addtogroup UART_Exported_Functions_Group3
* @{ *//* Peripheral Control functions ************************************************/HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart);HAL_StatusTypeDef HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart);HAL_StatusTypeDef HAL_MultiProcessor_ExitMuteMode(UART_HandleTypeDef *huart);HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart);HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart);/**
* @} */
/** @addtogroup UART_Exported_Functions_Group4
* @{ *//* Peripheral State functions **************************************************/HAL_UART_StateTypeDef HAL_UART_GetState(const UART_HandleTypeDef *huart);uint32_t HAL_UART_GetError(const UART_HandleTypeDef *huart);/**
* @} */
/**
* @} *//* Private types -------------------------------------------------------------*//* Private variables ---------------------------------------------------------*//* Private constants ---------------------------------------------------------*//** @defgroup UART_Private_Constants UART Private Constants
* @{ *//** @brief UART interruptions flag mask
* */#define UART_IT_MASK 0x0000FFFFU
#define UART_CR1_REG_INDEX 1U
#define UART_CR2_REG_INDEX 2U
#define UART_CR3_REG_INDEX 3U
/**
* @} */
/* Private macros ------------------------------------------------------------*//** @defgroup UART_Private_Macros UART Private Macros
* @{ */#define IS_UART_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B) || \
((LENGTH) == UART_WORDLENGTH_9B))#define IS_UART_LIN_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B))
#define IS_UART_STOPBITS(STOPBITS) (((STOPBITS) == UART_STOPBITS_1) || \
((STOPBITS) == UART_STOPBITS_2))#define IS_UART_PARITY(PARITY) (((PARITY) == UART_PARITY_NONE) || \
((PARITY) == UART_PARITY_EVEN) || \ ((PARITY) == UART_PARITY_ODD))#define IS_UART_HARDWARE_FLOW_CONTROL(CONTROL)\
(((CONTROL) == UART_HWCONTROL_NONE) || \ ((CONTROL) == UART_HWCONTROL_RTS) || \ ((CONTROL) == UART_HWCONTROL_CTS) || \ ((CONTROL) == UART_HWCONTROL_RTS_CTS))#define IS_UART_MODE(MODE) ((((MODE) & 0x0000FFF3U) == 0x00U) && ((MODE) != 0x00U))
#define IS_UART_STATE(STATE) (((STATE) == UART_STATE_DISABLE) || \
((STATE) == UART_STATE_ENABLE))#define IS_UART_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16) || \
((SAMPLING) == UART_OVERSAMPLING_8))#define IS_UART_LIN_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16))
#define IS_UART_LIN_BREAK_DETECT_LENGTH(LENGTH) (((LENGTH) == UART_LINBREAKDETECTLENGTH_10B) || \
((LENGTH) == UART_LINBREAKDETECTLENGTH_11B))#define IS_UART_WAKEUPMETHOD(WAKEUP) (((WAKEUP) == UART_WAKEUPMETHOD_IDLELINE) || \
((WAKEUP) == UART_WAKEUPMETHOD_ADDRESSMARK))#define IS_UART_BAUDRATE(BAUDRATE) ((BAUDRATE) <= 10500000U)
#define IS_UART_ADDRESS(ADDRESS) ((ADDRESS) <= 0x0FU)
#define UART_DIV_SAMPLING16(_PCLK_, _BAUD_) ((uint32_t)((((uint64_t)(_PCLK_))*25U)/(4U*((uint64_t)(_BAUD_)))))
#define UART_DIVMANT_SAMPLING16(_PCLK_, _BAUD_) (UART_DIV_SAMPLING16((_PCLK_), (_BAUD_))/100U)
#define UART_DIVFRAQ_SAMPLING16(_PCLK_, _BAUD_) ((((UART_DIV_SAMPLING16((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) * 100U)) * 16U)\
+ 50U) / 100U)/* UART BRR = mantissa + overflow + fraction
= (UART DIVMANT << 4) + (UART DIVFRAQ & 0xF0) + (UART DIVFRAQ & 0x0FU) */#define UART_BRR_SAMPLING16(_PCLK_, _BAUD_) ((UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) << 4U) + \
(UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0xF0U) + \ (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0x0FU))
#define UART_DIV_SAMPLING8(_PCLK_, _BAUD_) ((uint32_t)((((uint64_t)(_PCLK_))*25U)/(2U*((uint64_t)(_BAUD_)))))
#define UART_DIVMANT_SAMPLING8(_PCLK_, _BAUD_) (UART_DIV_SAMPLING8((_PCLK_), (_BAUD_))/100U)
#define UART_DIVFRAQ_SAMPLING8(_PCLK_, _BAUD_) ((((UART_DIV_SAMPLING8((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) * 100U)) * 8U)\
+ 50U) / 100U)/* UART BRR = mantissa + overflow + fraction
= (UART DIVMANT << 4) + ((UART DIVFRAQ & 0xF8) << 1) + (UART DIVFRAQ & 0x07U) */#define UART_BRR_SAMPLING8(_PCLK_, _BAUD_) ((UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) << 4U) + \
((UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0xF8U) << 1U) + \ (UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0x07U))
/**
* @} */
/* Private functions ---------------------------------------------------------*//** @defgroup UART_Private_Functions UART Private Functions
* @{ */
HAL_StatusTypeDef UART_Start_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);HAL_StatusTypeDef UART_Start_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
/**
* @} */
/**
* @} */
/**
* @} */
#ifdef __cplusplus
}#endif
#endif /* __STM32F4xx_HAL_UART_H */
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