/**
******************************************************************************
* @file stm32f4xx_hal_usart.h
* @author MCD Application Team
* @version V1.3.2
* @date 26-June-2015
* @brief Header file of USART HAL module.
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT(c) 2015 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 ------------------------------------------------------------*/
/** @defgroup USART_Exported_Types 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 * (husart->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 whether 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 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 uint32_t ErrorCode; /* USART Error code */
}USART_HandleTypeDef;
/**
* @}
*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup USART_Exported_Constants USART Exported Constants
* @{
*/
/** @defgroup USART_Error_Code USART Error Code
* @brief USART Error Code
* @{
*/
#define HAL_USART_ERROR_NONE ((uint32_t)0x00000000) /*!< No error */
#define HAL_USART_ERROR_PE ((uint32_t)0x00000001) /*!< Parity error */
#define HAL_USART_ERROR_NE ((uint32_t)0x00000002) /*!< Noise error */
#define HAL_USART_ERROR_FE ((uint32_t)0x00000004) /*!< Frame error */
#define HAL_USART_ERROR_ORE ((uint32_t)0x00000008) /*!< Overrun error */
#define HAL_USART_ERROR_DMA ((uint32_t)0x00000010) /*!< DMA transfer error */
/**
* @}
*/
/** @defgroup USART_Word_Length USART Word Length
* @{
*/
#define USART_WORDLENGTH_8B ((uint32_t)0x00000000)
#define USART_WORDLENGTH_9B ((uint32_t)USART_CR1_M)
/**
* @}
*/
/** @defgroup USART_Stop_Bits USART Number of 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))
/**
* @}
*/
/** @defgroup USART_Parity 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))
/**
* @}
*/
/** @defgroup USART_Mode 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))
/**
* @}
*/
/** @defgroup USART_Clock USART Clock
* @{
*/
#define USART_CLOCK_DISABLE ((uint32_t)0x00000000)
#define USART_CLOCK_ENABLE ((uint32_t)USART_CR2_CLKEN)
/**
* @}
*/
/** @defgroup USART_Clock_Polarity USART Clock Polarity
* @{
*/
#define USART_POLARITY_LOW ((uint32_t)0x00000000)
#define USART_POLARITY_HIGH ((uint32_t)USART_CR2_CPOL)
/**
* @}
*/
/** @defgroup USART_Clock_Phase USART Clock Phase
* @{
*/
#define USART_PHASE_1EDGE ((uint32_t)0x00000000)
#define USART_PHASE_2EDGE ((uint32_t)USART_CR2_CPHA)
/**
* @}
*/
/** @defgroup USART_Last_Bit USART Last Bit
* @{
*/
#define USART_LASTBIT_DISABLE ((uint32_t)0x00000000)
#define USART_LASTBIT_ENABLE ((uint32_t)USART_CR2_LBCL)
/**
* @}
*/
/** @defgroup USART_NACK_State USART NACK State
* @{
*/
#define USART_NACK_ENABLE ((uint32_t)USART_CR3_NACK)
#define USART_NACK_DISABLE ((uint32_t)0x00000000)
/**
* @}
*/
/** @defgroup USART_Flags 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 USART Interrupts 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)(USART_CR1_REG_INDEX << 28 | USART_CR1_PEIE))
#define USART_IT_TXE ((uint32_t)(USART_CR1_REG_INDEX << 28 | USART_CR1_TXEIE))
#define USART_IT_TC ((uint32_t)(USART_CR1_REG_INDEX << 28 | USART_CR1_TCIE))
#define USART_IT_RXNE ((uint32_t)(USART_CR1_REG_INDEX << 28 | USART_CR1_RXNEIE))
#define USART_IT_IDLE ((uint32_t)(USART_CR1_REG_INDEX << 28 | USART_CR1_IDLEIE))
#define USART_IT_LBD ((uint32_t)(USART_CR2_REG_INDEX << 28 | USART_CR2_LBDIE))
#define USART_IT_CTS ((uint32_t)(USART_CR3_REG_INDEX << 28 | USART_CR3_CTSIE))
#define USART_IT_ERR ((uint32_t)(USART_CR3_REG_INDEX << 28 | USART_CR3_EIE))
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/** @defgroup USART_Exported_Macros USART Exported Macros
* @{
*/
/** @brief Reset USART handle state
* @param __HANDLE__: specifies the USART Handle.
* This parameter can be USARTx where x: 1, 2, 3 or 6 to select the USART peripheral.
* @retval None
*/
#define __HAL_USART_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_USART_STATE_RESET)
/** @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 or 6 to select the USART 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 or 6 to select the USART 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 Clear the USART PE pending flag.
* @param __HANDLE__: specifies the USART Handle.
* This parameter can be USARTx where x: 1, 2, 3 or 6 to select the USART peripheral.
* @retval None
*/
#define __HAL_USART_CLEAR_PEFLAG(__HANDLE__) \
do{ \
__IO uint32_t tmpreg; \
tmpreg = (__HANDLE__)->Instance->SR; \
tmpreg = (__HANDLE__)->Instance->DR; \
UNUSED(tmpreg); \
} while(0)
/** @brief Clear the USART FE pending flag.
* @param __HANDLE__: specifies the USART Handle.
* This parameter can be USARTx where x: 1, 2, 3 or 6 to select the USART peripheral.
* @retval None
*/
#define __HAL_USART_CLEAR_FEFLAG(__HANDLE__) __HAL_USART_CLEAR_PEFLAG(__HANDLE__)
/** @brief Clear the USART NE pending flag.
* @param __HANDLE__: specifies the USART Handle.
* This parameter can be USARTx where x: 1, 2, 3 or 6 to select the USART peripheral.
* @retval None
*/
#define __HAL_USART_CLEAR_NEFLAG(__HANDLE__) __HAL_USART_CLEAR_PEFLAG(__HANDLE__)
/** @brief Clear the UART ORE pending flag.
* @param __HANDLE__: specifies the USART Handle.
* This parameter can be USARTx where x: 1, 2, 3 or 6 to select the USART peripheral.
* @retval None
*/
#define __HAL_USART_CLEAR_OREFLAG(__HANDLE__) __HAL_USART_CLEAR_PEFLAG(__HANDLE__)
/** @brief Clear the USART IDLE pending flag.
* @param __HANDLE__: specifies the USART Handle.
* This parameter can be USARTx where x: 1, 2, 3 or 6 to select the USART peripheral.
* @retval None
*/
#define __HAL_USART_CLEAR_IDLEFLAG(__HANDLE__) __HAL_USART_CLEAR_PEFLAG(__HANDLE__)
/** @brief Enables or disables the specified USART interrupts.
* @param __HANDLE__: specifies the USART Handle.
* This parameter can be USARTx where x: 1, 2, 3 or 6 to select the USART 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)
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
#define __HAL_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 __HAL_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 or 6 to select the USART 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))
/** @brief Macro to enable the USART's one bit sample method
* @param __HANDLE__: specifies the USART Handle.
* @retval None
*/
#define __HAL_USART_ONE_BIT_SAMPLE_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3|= USART_CR3_ONEBIT)
/** @brief Macro to disable the USART's one bit sample method
* @param __HANDLE__: specifies the USART Handle.
* @retval None
*/
#define __HAL_USART_ONE_BIT_SAMPLE_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3 &= (uint16_t)~((uint16_t)USART_CR3_ONEBIT))
/** @brief Enable USART
* @param __HANDLE__: specifies the USART Handle.
* USART Handle selects the USARTx peripheral (USART availability and x value depending on device).
* @retval None
*/
#define __HAL_USART_ENABLE(__HANDLE__) ( (__HANDLE__)->Instance->CR1 |= USART_CR1_UE)
/** @brief Disable USART
* @param __HANDLE__: specifies the USART Handle.
* USART Handle selects the USARTx peripheral (USART availability and x value depending on device).
* @retval None
*/
#define __HAL_USART_DISABLE(__HANDLE__) ( (__HANDLE__)->Instance->CR1 &= ~USART_CR1_UE)
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup USART_Exported_Functions
* @{
*/
/** @addtogroup USART_Exported_Functions_Group1
* @{
*/
/* 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);
/**
* @}
*/
/** @addtogroup USART_Exported_Functions_Group2
* @{
*/
/* 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);
/**
* @}
*/
/** @addtogroup USART_Exported_Functions_Group3
* @{
*/
/* Peripheral State functions ************************************************/
HAL_USART_StateTypeDef HAL_USART_GetState(USART_HandleTypeDef *husart);
uint32_t HAL_USART_GetError(USART_HandleTypeDef *husart);
/**
* @}
*/
/**
* @}
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/** @defgroup USART_Private_Constants USART Private Constants
* @{
*/
/** @brief USART interruptions flag mask
*
*/
#define USART_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 USART_CR1_REG_INDEX 1
#define USART_CR2_REG_INDEX 2
#define USART_CR3_REG_INDEX 3
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup USART_Private_Macros USART Private Macros
* @{
*/
#define IS_USART_NACK_STATE(NACK) (((NACK) == USART_NACK_ENABLE) || \
((NACK) == USART_NACK_DISABLE))
#define IS_USART_LASTBIT(LASTBIT) (((LASTBIT) == USART_LASTBIT_DISABLE) || \
((LASTBIT) == USART_LASTBIT_ENABLE))
#define IS_USART_PHASE(CPHA) (((CPHA) == USART_PHASE_1EDGE) || ((CPHA) == USART_PHASE_2EDGE))
#define IS_USART_POLARITY(CPOL) (((CPOL) == USART_POLARITY_LOW) || ((CPOL) == USART_POLARITY_HIGH))
#define IS_USART_CLOCK(CLOCK) (((CLOCK) == USART_CLOCK_DISABLE) || \
((CLOCK) == USART_CLOCK_ENABLE))
#define IS_USART_WORD_LENGTH(LENGTH) (((LENGTH) == USART_WORDLENGTH_8B) || \
((LENGTH) == USART_WORDLENGTH_9B))
#define IS_USART_STOPBITS(STOPBITS) (((STOPBITS) == USART_STOPBITS_1) || \
((STOPBITS) == USART_STOPBITS_0_5) || \
((STOPBITS) == USART_STOPBITS_1_5) || \
((STOPBITS) == USART_STOPBITS_2))
#define IS_USART_PARITY(PARITY) (((PARITY) == USART_PARITY_NONE) || \
((PARITY) == USART_PARITY_EVEN) || \
((PARITY) == USART_PARITY_ODD))
#define IS_USART_MODE(MODE) ((((MODE) & (uint32_t)0xFFF3) == 0x00) && ((MODE) != (uint32_t)0x00))
#define IS_USART_BAUDRATE(BAUDRATE) ((BAUDRATE) < 10500001)
#define USART_DIV(_PCLK_, _BAUD_) (((_PCLK_)*25)/(2*(_BAUD_)))
#define USART_DIVMANT(_PCLK_, _BAUD_) (USART_DIV((_PCLK_), (_BAUD_))/100)
#define USART_DIVFRAQ(_PCLK_, _BAUD_) (((USART_DIV((_PCLK_), (_BAUD_)) - (USART_DIVMANT((_PCLK_), (_BAUD_)) * 100)) * 16 + 50) / 100)
#define USART_BRR(_PCLK_, _BAUD_) ((USART_DIVMANT((_PCLK_), (_BAUD_)) << 4)|(USART_DIVFRAQ((_PCLK_), (_BAUD_)) & 0x0F))
/**
* @}
*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup USART_Private_Functions USART Private Functions
* @{
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32F4xx_HAL_USART_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
