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/**
******************************************************************************
* @file stm32f7xx_hal_usart_ex.h
* @author MCD Application Team
* @version V1.0.1
* @date 25-June-2015
* @brief Header file of USART HAL Extension 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 __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_M_1)
#define USART_WORDLENGTH_8B ((uint32_t)0x00000000)
#define USART_WORDLENGTH_9B ((uint32_t)USART_CR1_M_0)
/**
* @}
*/
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup USARTEx_Private_Macros USARTEx Private Macros
* @{
*/
/** @brief Computes the USART mask to apply to retrieve the received data
* according to the word length and to the parity bits activation.
* 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
*/
#define __HAL_USART_MASK_COMPUTATION(__HANDLE__) \
do { \
if ((__HANDLE__)->Init.WordLength == USART_WORDLENGTH_9B) \
{ \
if ((__HANDLE__)->Init.Parity == USART_PARITY_NONE) \
{ \
(__HANDLE__)->Mask = 0x01FF ; \
} \
else \
{ \
(__HANDLE__)->Mask = 0x00FF ; \
} \
} \
else if ((__HANDLE__)->Init.WordLength == USART_WORDLENGTH_8B) \
{ \
if ((__HANDLE__)->Init.Parity == USART_PARITY_NONE) \
{ \
(__HANDLE__)->Mask = 0x00FF ; \
} \
else \
{ \
(__HANDLE__)->Mask = 0x007F ; \
} \
} \
else if ((__HANDLE__)->Init.WordLength == USART_WORDLENGTH_7B) \
{ \
if ((__HANDLE__)->Init.Parity == USART_PARITY_NONE) \
{ \
(__HANDLE__)->Mask = 0x007F ; \
} \
else \
{ \
(__HANDLE__)->Mask = 0x003F ; \
} \
} \
} while(0)
#define IS_USART_WORD_LENGTH(__LENGTH__) (((__LENGTH__) == USART_WORDLENGTH_7B) || \
((__LENGTH__) == USART_WORDLENGTH_8B) || \
((__LENGTH__) == USART_WORDLENGTH_9B))
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/* Initialization/de-initialization methods **********************************/
/* IO operation methods *******************************************************/
/* Peripheral Control methods ************************************************/
/* Peripheral State methods **************************************************/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32F7xx_HAL_USART_EX_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
