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/**
******************************************************************************
* @file stm32f7xx_hal_usart_ex.h
* @author MCD Application Team
* @brief Header file of USART HAL Extended module.
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2017 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32F7xx_HAL_USART_EX_H
#define STM32F7xx_HAL_USART_EX_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal_def.h"
/** @addtogroup STM32F7xx_HAL_Driver
* @{
*/
/** @addtogroup USARTEx
* @{
*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup USARTEx_Exported_Constants USARTEx Exported Constants
* @{
*/
/** @defgroup USARTEx_Word_Length USARTEx Word Length
* @{
*/
#define USART_WORDLENGTH_7B ((uint32_t)USART_CR1_M1) /*!< 7-bit long USART frame */
#define USART_WORDLENGTH_8B (0x00000000U) /*!< 8-bit long USART frame */
#define USART_WORDLENGTH_9B ((uint32_t)USART_CR1_M0) /*!< 9-bit long USART frame */
/**
* @}
*/
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup USARTEx_Private_Macros USARTEx Private Macros
* @{
*/
/** @brief Compute the USART mask to apply to retrieve the received data
* according to the word length and to the parity bits activation.
* @note If PCE = 1, the parity bit is not included in the data extracted
* by the reception API().
* This masking operation is not carried out in the case of
* DMA transfers.
* @param __HANDLE__ specifies the USART Handle.
* @retval None, the mask to apply to USART RDR register is stored in (__HANDLE__)->Mask field.
*/
#define USART_MASK_COMPUTATION(__HANDLE__) \
do { \
if ((__HANDLE__)->Init.WordLength == USART_WORDLENGTH_9B) \
{ \
if ((__HANDLE__)->Init.Parity == USART_PARITY_NONE) \
{ \
(__HANDLE__)->Mask = 0x01FFU; \
} \
else \
{ \
(__HANDLE__)->Mask = 0x00FFU; \
} \
} \
else if ((__HANDLE__)->Init.WordLength == USART_WORDLENGTH_8B) \
{ \
if ((__HANDLE__)->Init.Parity == USART_PARITY_NONE) \
{ \
(__HANDLE__)->Mask = 0x00FFU; \
} \
else \
{ \
(__HANDLE__)->Mask = 0x007FU; \
} \
} \
else if ((__HANDLE__)->Init.WordLength == USART_WORDLENGTH_7B) \
{ \
if ((__HANDLE__)->Init.Parity == USART_PARITY_NONE) \
{ \
(__HANDLE__)->Mask = 0x007FU; \
} \
else \
{ \
(__HANDLE__)->Mask = 0x003FU; \
} \
} \
else \
{ \
(__HANDLE__)->Mask = 0x0000U; \
} \
} while(0U)
/**
* @brief Ensure that USART frame length is valid.
* @param __LENGTH__ USART frame length.
* @retval SET (__LENGTH__ is valid) or RESET (__LENGTH__ is invalid)
*/
#define IS_USART_WORD_LENGTH(__LENGTH__) (((__LENGTH__) == USART_WORDLENGTH_7B) || \
((__LENGTH__) == USART_WORDLENGTH_8B) || \
((__LENGTH__) == USART_WORDLENGTH_9B))
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup USARTEx_Exported_Functions
* @{
*/
/** @addtogroup USARTEx_Exported_Functions_Group1
* @{
*/
/* IO operation functions *****************************************************/
/**
* @}
*/
/** @addtogroup USARTEx_Exported_Functions_Group2
* @{
*/
/* Peripheral Control functions ***********************************************/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* STM32F7xx_HAL_USART_EX_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/