| /** |
| ****************************************************************************** |
| * @file stm32f7xx_hal_usart_ex.h |
| * @author MCD Application Team |
| * @brief Header file of USART HAL Extension module. |
| ****************************************************************************** |
| * @attention |
| * |
| * <h2><center>© COPYRIGHT(c) 2017 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)0x00000000U) |
| #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****/ |