ref: 6e79cef4b05e2863fef1eb0da4de7a4afc920494
dir: /demos/stm32f429_disco/stm/stm32f4_spl/inc/stm32f4xx_hal_usart.h/
/**
******************************************************************************
* @file stm32f4xx_hal_usart.h
* @author MCD Application Team
* @version V1.0.0
* @date 18-February-2014
* @brief Header file of USART HAL module.
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT(c) 2014 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_HAL_USART_H
#define __STM32F4xx_HAL_USART_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal_def.h"
/** @addtogroup STM32F4xx_HAL_Driver
* @{
*/
/** @addtogroup USART
* @{
*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief USART Init Structure definition
*/
typedef struct
{
uint32_t BaudRate; /*!< This member configures the Usart 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 USART_Word_Length */
uint32_t StopBits; /*!< Specifies the number of stop bits transmitted.
This parameter can be a value of @ref USART_Stop_Bits */
uint32_t Parity; /*!< Specifies the parity mode.
This parameter can be a value of @ref USART_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 USART_Mode */
uint32_t CLKPolarity; /*!< Specifies the steady state of the serial clock.
This parameter can be a value of @ref USART_Clock_Polarity */
uint32_t CLKPhase; /*!< Specifies the clock transition on which the bit capture is made.
This parameter can be a value of @ref USART_Clock_Phase */
uint32_t CLKLastBit; /*!< 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_Last_Bit */
}USART_InitTypeDef;
/**
* @brief HAL State structures definition
*/
typedef enum
{
HAL_USART_STATE_RESET = 0x00, /*!< Peripheral is not yet Initialized */
HAL_USART_STATE_READY = 0x01, /*!< Peripheral Initialized and ready for use */
HAL_USART_STATE_BUSY = 0x02, /*!< an internal process is ongoing */
HAL_USART_STATE_BUSY_TX = 0x12, /*!< Data Transmission process is ongoing */
HAL_USART_STATE_BUSY_RX = 0x22, /*!< Data Reception process is ongoing */
HAL_USART_STATE_BUSY_TX_RX = 0x32, /*!< Data Transmission Reception process is ongoing */
HAL_USART_STATE_TIMEOUT = 0x03, /*!< Timeout state */
HAL_USART_STATE_ERROR = 0x04 /*!< Error */
}HAL_USART_StateTypeDef;
/**
* @brief HAL USART Error Code structure definition
*/
typedef enum
{
HAL_USART_ERROR_NONE = 0x00, /*!< No error */
HAL_USART_ERROR_PE = 0x01, /*!< Parity error */
HAL_USART_ERROR_NE = 0x02, /*!< Noise error */
HAL_USART_ERROR_FE = 0x04, /*!< frame error */
HAL_USART_ERROR_ORE = 0x08, /*!< Overrun error */
HAL_USART_ERROR_DMA = 0x10 /*!< DMA transfer error */
}HAL_USART_ErrorTypeDef;
/**
* @brief USART handle Structure definition
*/
typedef struct
{
USART_TypeDef *Instance; /* USART registers base address */
USART_InitTypeDef Init; /* Usart communication parameters */
uint8_t *pTxBuffPtr; /* Pointer to Usart Tx transfer Buffer */
uint16_t TxXferSize; /* Usart Tx Transfer size */
__IO uint16_t TxXferCount; /* Usart Tx Transfer Counter */
uint8_t *pRxBuffPtr; /* Pointer to Usart Rx transfer Buffer */
uint16_t RxXferSize; /* Usart Rx Transfer size */
__IO uint16_t RxXferCount; /* Usart Rx Transfer Counter */
DMA_HandleTypeDef *hdmatx; /* Usart Tx DMA Handle parameters */
DMA_HandleTypeDef *hdmarx; /* Usart Rx DMA Handle parameters */
HAL_LockTypeDef Lock; /* Locking object */
__IO HAL_USART_StateTypeDef State; /* Usart communication state */
__IO HAL_USART_ErrorTypeDef ErrorCode; /* USART Error code */
}USART_HandleTypeDef;
/* Exported constants --------------------------------------------------------*/
/** @defgroup USART_Exported_Constants
* @{
*/
/** @defgroup USART_Word_Length
* @{
*/
#define USART_WORDLENGTH_8B ((uint32_t)0x00000000)
#define USART_WORDLENGTH_9B ((uint32_t)USART_CR1_M)
#define IS_USART_WORD_LENGTH(LENGTH) (((LENGTH) == USART_WORDLENGTH_8B) || \
((LENGTH) == USART_WORDLENGTH_9B))
/**
* @}
*/
/** @defgroup USART_Stop_Bits
* @{
*/
#define USART_STOPBITS_1 ((uint32_t)0x00000000)
#define USART_STOPBITS_0_5 ((uint32_t)USART_CR2_STOP_0)
#define USART_STOPBITS_2 ((uint32_t)USART_CR2_STOP_1)
#define USART_STOPBITS_1_5 ((uint32_t)(USART_CR2_STOP_0 | USART_CR2_STOP_1))
#define IS_USART_STOPBITS(STOPBITS) (((STOPBITS) == USART_STOPBITS_1) || \
((STOPBITS) == USART_STOPBITS_0_5) || \
((STOPBITS) == USART_STOPBITS_1_5) || \
((STOPBITS) == USART_STOPBITS_2))
/**
* @}
*/
/** @defgroup USART_Parity
* @{
*/
#define USART_PARITY_NONE ((uint32_t)0x00000000)
#define USART_PARITY_EVEN ((uint32_t)USART_CR1_PCE)
#define USART_PARITY_ODD ((uint32_t)(USART_CR1_PCE | USART_CR1_PS))
#define IS_USART_PARITY(PARITY) (((PARITY) == USART_PARITY_NONE) || \
((PARITY) == USART_PARITY_EVEN) || \
((PARITY) == USART_PARITY_ODD))
/**
* @}
*/
/** @defgroup USART_Mode
* @{
*/
#define USART_MODE_RX ((uint32_t)USART_CR1_RE)
#define USART_MODE_TX ((uint32_t)USART_CR1_TE)
#define USART_MODE_TX_RX ((uint32_t)(USART_CR1_TE |USART_CR1_RE))
#define IS_USART_MODE(MODE) ((((MODE) & (uint32_t)0xFFF3) == 0x00) && ((MODE) != (uint32_t)0x00))
/**
* @}
*/
/** @defgroup USART_Clock
* @{
*/
#define USART_CLOCK_DISABLED ((uint32_t)0x00000000)
#define USART_CLOCK_ENABLED ((uint32_t)USART_CR2_CLKEN)
#define IS_USART_CLOCK(CLOCK) (((CLOCK) == USART_CLOCK_DISABLED) || \
((CLOCK) == USART_CLOCK_ENABLED))
/**
* @}
*/
/** @defgroup USART_Clock_Polarity
* @{
*/
#define USART_POLARITY_LOW ((uint32_t)0x00000000)
#define USART_POLARITY_HIGH ((uint32_t)USART_CR2_CPOL)
#define IS_USART_POLARITY(CPOL) (((CPOL) == USART_POLARITY_LOW) || ((CPOL) == USART_POLARITY_HIGH))
/**
* @}
*/
/** @defgroup USART_Clock_Phase
* @{
*/
#define USART_PHASE_1EDGE ((uint32_t)0x00000000)
#define USART_PHASE_2EDGE ((uint32_t)USART_CR2_CPHA)
#define IS_USART_PHASE(CPHA) (((CPHA) == USART_PHASE_1EDGE) || ((CPHA) == USART_PHASE_2EDGE))
/**
* @}
*/
/** @defgroup USART_Last_Bit
* @{
*/
#define USART_LASTBIT_DISABLE ((uint32_t)0x00000000)
#define USART_LASTBIT_ENABLE ((uint32_t)USART_CR2_LBCL)
#define IS_USART_LASTBIT(LASTBIT) (((LASTBIT) == USART_LASTBIT_DISABLE) || \
((LASTBIT) == USART_LASTBIT_ENABLE))
/**
* @}
*/
/** @defgroup Usart_NACK_State
* @{
*/
#define USARTNACK_ENABLED ((uint32_t)USART_CR3_NACK)
#define USARTNACK_DISABLED ((uint32_t)0x00000000)
#define IS_USART_NACK_STATE(NACK) (((NACK) == USARTNACK_ENABLED) || \
((NACK) == USARTNACK_DISABLED))
/**
* @}
*/
/** @defgroup Usart_Flags
* Elements values convention: 0xXXXX
* - 0xXXXX : Flag mask in the SR register
* @{
*/
#define USART_FLAG_TXE ((uint32_t)0x00000080)
#define USART_FLAG_TC ((uint32_t)0x00000040)
#define USART_FLAG_RXNE ((uint32_t)0x00000020)
#define USART_FLAG_IDLE ((uint32_t)0x00000010)
#define USART_FLAG_ORE ((uint32_t)0x00000008)
#define USART_FLAG_NE ((uint32_t)0x00000004)
#define USART_FLAG_FE ((uint32_t)0x00000002)
#define USART_FLAG_PE ((uint32_t)0x00000001)
/**
* @}
*/
/** @defgroup USART_Interrupt_definition
* 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 USART_IT_PE ((uint32_t)0x10000100)
#define USART_IT_TXE ((uint32_t)0x10000080)
#define USART_IT_TC ((uint32_t)0x10000040)
#define USART_IT_RXNE ((uint32_t)0x10000020)
#define USART_IT_IDLE ((uint32_t)0x10000010)
#define USART_IT_LBD ((uint32_t)0x20000040)
#define USART_IT_CTS ((uint32_t)0x30000400)
#define USART_IT_ERR ((uint32_t)0x30000001)
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/** @brief Checks whether the specified Smartcard 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 USART_FLAG_TXE: Transmit data register empty flag
* @arg USART_FLAG_TC: Transmission Complete flag
* @arg USART_FLAG_RXNE: Receive data register not empty flag
* @arg USART_FLAG_IDLE: Idle Line detection flag
* @arg USART_FLAG_ORE: OverRun Error flag
* @arg USART_FLAG_NE: Noise Error flag
* @arg USART_FLAG_FE: Framing Error flag
* @arg USART_FLAG_PE: Parity Error flag
* @retval The new state of __FLAG__ (TRUE or FALSE).
*/
#define __HAL_USART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))
/** @brief Clears the specified Smartcard pending flags.
* @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 USART_FLAG_TC: Transmission Complete flag.
* @arg USART_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_USART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR &= ~(__FLAG__))
/** @brief Enables or disables the specified Usart interrupts.
* @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 USART interrupt source to check.
* This parameter can be one of the following values:
* @arg USART_IT_TXE: Transmit Data Register empty interrupt
* @arg USART_IT_TC: Transmission complete interrupt
* @arg USART_IT_RXNE: Receive Data register not empty interrupt
* @arg USART_IT_IDLE: Idle line detection interrupt
* @arg USART_IT_PE: Parity Error interrupt
* @arg USART_IT_ERR: Error interrupt(Frame error, noise error, overrun error)
* @param NewState: new state of the specified Usart interrupt.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
#define USART_IT_MASK ((uint32_t)0x0000FFFF)
#define __USART_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28) == 1)? ((__HANDLE__)->Instance->CR1 |= ((__INTERRUPT__) & USART_IT_MASK)): \
(((__INTERRUPT__) >> 28) == 2)? ((__HANDLE__)->Instance->CR2 |= ((__INTERRUPT__) & USART_IT_MASK)): \
((__HANDLE__)->Instance->CR3 |= ((__INTERRUPT__) & USART_IT_MASK)))
#define __USART_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28) == 1)? ((__HANDLE__)->Instance->CR1 &= ~((__INTERRUPT__) & USART_IT_MASK)): \
(((__INTERRUPT__) >> 28) == 2)? ((__HANDLE__)->Instance->CR2 &= ~((__INTERRUPT__) & USART_IT_MASK)): \
((__HANDLE__)->Instance->CR3 &= ~ ((__INTERRUPT__) & USART_IT_MASK)))
/** @brief Checks whether the specified Usart 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 USART interrupt source to check.
* This parameter can be one of the following values:
* @arg USART_IT_TXE: Transmit Data Register empty interrupt
* @arg USART_IT_TC: Transmission complete interrupt
* @arg USART_IT_RXNE: Receive Data register not empty interrupt
* @arg USART_IT_IDLE: Idle line detection interrupt
* @arg USART_IT_ERR: Error interrupt
* @arg USART_IT_PE: Parity Error interrupt
* @retval The new state of __IT__ (TRUE or FALSE).
*/
#define __HAL_USART_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__)) & USART_IT_MASK))
#define __USART_ENABLE(__HANDLE__) ( (__HANDLE__)->Instance->CR1 |= USART_CR1_UE)
#define __USART_DISABLE(__HANDLE__) ( (__HANDLE__)->Instance->CR1 &= ~USART_CR1_UE)
#define __DIV(_PCLK_, _BAUD_) (((_PCLK_)*25)/(4*(_BAUD_)))
#define __DIVMANT(_PCLK_, _BAUD_) (__DIV((_PCLK_), (_BAUD_))/100)
#define __DIVFRAQ(_PCLK_, _BAUD_) (((__DIV((_PCLK_), (_BAUD_)) - (__DIVMANT((_PCLK_), (_BAUD_)) * 100)) * 16 + 50) / 100)
#define __USART_BRR(_PCLK_, _BAUD_) ((__DIVMANT((_PCLK_), (_BAUD_)) << 4)|(__DIVFRAQ((_PCLK_), (_BAUD_)) & 0x0F))
#define IS_USART_BAUDRATE(BAUDRATE) ((BAUDRATE) < 10500001)
/* Exported functions --------------------------------------------------------*/
/* Initialization/de-initialization functions **********************************/
HAL_StatusTypeDef HAL_USART_Init(USART_HandleTypeDef *husart);
HAL_StatusTypeDef HAL_USART_DeInit(USART_HandleTypeDef *husart);
void HAL_USART_MspInit(USART_HandleTypeDef *husart);
void HAL_USART_MspDeInit(USART_HandleTypeDef *husart);
/* IO operation functions *******************************************************/
HAL_StatusTypeDef HAL_USART_Transmit(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_USART_Receive(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_USART_TransmitReceive(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_USART_Transmit_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size);
HAL_StatusTypeDef HAL_USART_Receive_IT(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size);
HAL_StatusTypeDef HAL_USART_TransmitReceive_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size);
HAL_StatusTypeDef HAL_USART_Transmit_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size);
HAL_StatusTypeDef HAL_USART_Receive_DMA(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size);
HAL_StatusTypeDef HAL_USART_TransmitReceive_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size);
HAL_StatusTypeDef HAL_USART_DMAPause(USART_HandleTypeDef *husart);
HAL_StatusTypeDef HAL_USART_DMAResume(USART_HandleTypeDef *husart);
HAL_StatusTypeDef HAL_USART_DMAStop(USART_HandleTypeDef *husart);
void HAL_USART_IRQHandler(USART_HandleTypeDef *husart);
void HAL_USART_TxCpltCallback(USART_HandleTypeDef *husart);
void HAL_USART_TxHalfCpltCallback(USART_HandleTypeDef *husart);
void HAL_USART_RxCpltCallback(USART_HandleTypeDef *husart);
void HAL_USART_RxHalfCpltCallback(USART_HandleTypeDef *husart);
void HAL_USART_TxRxCpltCallback(USART_HandleTypeDef *husart);
void HAL_USART_ErrorCallback(USART_HandleTypeDef *husart);
/* Peripheral State functions **************************************************/
HAL_USART_StateTypeDef HAL_USART_GetState(USART_HandleTypeDef *husart);
uint32_t HAL_USART_GetError(USART_HandleTypeDef *husart);
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32F4xx_HAL_USART_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/