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targets/cmsis/TARGET_STM/TARGET_STM32L4/stm32l4xx_hal_usart_ex.h@637:ed69428d4850, 2015-12-22 (annotated)

Committer:
jaerts
Date:
Tue Dec 22 13:22:16 2015 +0000
Revision:
637:ed69428d4850
Parent:
610:813dcc80987e 
Add very shady LPC1768 CAN Filter implementation

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 610:813dcc80987e 1 /**
mbed_official 610:813dcc80987e 2 ******************************************************************************
mbed_official 610:813dcc80987e 3 * @file stm32l4xx_hal_usart_ex.h
mbed_official 610:813dcc80987e 4 * @author MCD Application Team
mbed_official 610:813dcc80987e 5 * @version V1.0.0
mbed_official 610:813dcc80987e 6 * @date 26-June-2015
mbed_official 610:813dcc80987e 7 * @brief Header file of USART HAL Extended module.
mbed_official 610:813dcc80987e 8 ******************************************************************************
mbed_official 610:813dcc80987e 9 * @attention
mbed_official 610:813dcc80987e 10 *
mbed_official 610:813dcc80987e 11 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
mbed_official 610:813dcc80987e 12 *
mbed_official 610:813dcc80987e 13 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 610:813dcc80987e 14 * are permitted provided that the following conditions are met:
mbed_official 610:813dcc80987e 15 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 610:813dcc80987e 16 * this list of conditions and the following disclaimer.
mbed_official 610:813dcc80987e 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 610:813dcc80987e 18 * this list of conditions and the following disclaimer in the documentation
mbed_official 610:813dcc80987e 19 * and/or other materials provided with the distribution.
mbed_official 610:813dcc80987e 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 610:813dcc80987e 21 * may be used to endorse or promote products derived from this software
mbed_official 610:813dcc80987e 22 * without specific prior written permission.
mbed_official 610:813dcc80987e 23 *
mbed_official 610:813dcc80987e 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 610:813dcc80987e 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 610:813dcc80987e 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 610:813dcc80987e 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 610:813dcc80987e 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 610:813dcc80987e 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 610:813dcc80987e 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 610:813dcc80987e 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 610:813dcc80987e 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 610:813dcc80987e 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 610:813dcc80987e 34 *
mbed_official 610:813dcc80987e 35 ******************************************************************************
mbed_official 610:813dcc80987e 36 */
mbed_official 610:813dcc80987e 37
mbed_official 610:813dcc80987e 38 /* Define to prevent recursive inclusion -------------------------------------*/
mbed_official 610:813dcc80987e 39 #ifndef __STM32L4xx_HAL_USART_EX_H
mbed_official 610:813dcc80987e 40 #define __STM32L4xx_HAL_USART_EX_H
mbed_official 610:813dcc80987e 41
mbed_official 610:813dcc80987e 42 #ifdef __cplusplus
mbed_official 610:813dcc80987e 43 extern "C" {
mbed_official 610:813dcc80987e 44 #endif
mbed_official 610:813dcc80987e 45
mbed_official 610:813dcc80987e 46 /* Includes ------------------------------------------------------------------*/
mbed_official 610:813dcc80987e 47 #include "stm32l4xx_hal_def.h"
mbed_official 610:813dcc80987e 48
mbed_official 610:813dcc80987e 49 /** @addtogroup STM32L4xx_HAL_Driver
mbed_official 610:813dcc80987e 50 * @{
mbed_official 610:813dcc80987e 51 */
mbed_official 610:813dcc80987e 52
mbed_official 610:813dcc80987e 53 /** @addtogroup USARTEx
mbed_official 610:813dcc80987e 54 * @{
mbed_official 610:813dcc80987e 55 */
mbed_official 610:813dcc80987e 56
mbed_official 610:813dcc80987e 57 /* Exported types ------------------------------------------------------------*/
mbed_official 610:813dcc80987e 58 /* Exported constants --------------------------------------------------------*/
mbed_official 610:813dcc80987e 59 /** @defgroup USARTEx_Exported_Constants USARTEx Exported Constants
mbed_official 610:813dcc80987e 60 * @{
mbed_official 610:813dcc80987e 61 */
mbed_official 610:813dcc80987e 62
mbed_official 610:813dcc80987e 63 /** @defgroup USARTEx_Word_Length USARTEx Word Length
mbed_official 610:813dcc80987e 64 * @{
mbed_official 610:813dcc80987e 65 */
mbed_official 610:813dcc80987e 66 #define USART_WORDLENGTH_7B ((uint32_t)USART_CR1_M1) /*!< 7-bit long USART frame */
mbed_official 610:813dcc80987e 67 #define USART_WORDLENGTH_8B ((uint32_t)0x00000000) /*!< 8-bit long USART frame */
mbed_official 610:813dcc80987e 68 #define USART_WORDLENGTH_9B ((uint32_t)USART_CR1_M0) /*!< 9-bit long USART frame */
mbed_official 610:813dcc80987e 69 /**
mbed_official 610:813dcc80987e 70 * @}
mbed_official 610:813dcc80987e 71 */
mbed_official 610:813dcc80987e 72
mbed_official 610:813dcc80987e 73 /**
mbed_official 610:813dcc80987e 74 * @}
mbed_official 610:813dcc80987e 75 */
mbed_official 610:813dcc80987e 76
mbed_official 610:813dcc80987e 77 /* Exported functions --------------------------------------------------------*/
mbed_official 610:813dcc80987e 78
mbed_official 610:813dcc80987e 79 /* Private macros ------------------------------------------------------------*/
mbed_official 610:813dcc80987e 80 /** @defgroup USARTEx_Private_Macros USARTEx Private Macros
mbed_official 610:813dcc80987e 81 * @{
mbed_official 610:813dcc80987e 82 */
mbed_official 610:813dcc80987e 83
mbed_official 610:813dcc80987e 84 /** @brief Compute the USART mask to apply to retrieve the received data
mbed_official 610:813dcc80987e 85 * according to the word length and to the parity bits activation.
mbed_official 610:813dcc80987e 86 * @note If PCE = 1, the parity bit is not included in the data extracted
mbed_official 610:813dcc80987e 87 * by the reception API().
mbed_official 610:813dcc80987e 88 * This masking operation is not carried out in the case of
mbed_official 610:813dcc80987e 89 * DMA transfers.
mbed_official 610:813dcc80987e 90 * @param __HANDLE__: specifies the USART Handle.
mbed_official 610:813dcc80987e 91 * @retval None, the mask to apply to USART RDR register is stored in (__HANDLE__)->Mask field.
mbed_official 610:813dcc80987e 92 */
mbed_official 610:813dcc80987e 93 #define USART_MASK_COMPUTATION(__HANDLE__) \
mbed_official 610:813dcc80987e 94 do { \
mbed_official 610:813dcc80987e 95 if ((__HANDLE__)->Init.WordLength == USART_WORDLENGTH_9B) \
mbed_official 610:813dcc80987e 96 { \
mbed_official 610:813dcc80987e 97 if ((__HANDLE__)->Init.Parity == USART_PARITY_NONE) \
mbed_official 610:813dcc80987e 98 { \
mbed_official 610:813dcc80987e 99 (__HANDLE__)->Mask = 0x01FF ; \
mbed_official 610:813dcc80987e 100 } \
mbed_official 610:813dcc80987e 101 else \
mbed_official 610:813dcc80987e 102 { \
mbed_official 610:813dcc80987e 103 (__HANDLE__)->Mask = 0x00FF ; \
mbed_official 610:813dcc80987e 104 } \
mbed_official 610:813dcc80987e 105 } \
mbed_official 610:813dcc80987e 106 else if ((__HANDLE__)->Init.WordLength == USART_WORDLENGTH_8B) \
mbed_official 610:813dcc80987e 107 { \
mbed_official 610:813dcc80987e 108 if ((__HANDLE__)->Init.Parity == USART_PARITY_NONE) \
mbed_official 610:813dcc80987e 109 { \
mbed_official 610:813dcc80987e 110 (__HANDLE__)->Mask = 0x00FF ; \
mbed_official 610:813dcc80987e 111 } \
mbed_official 610:813dcc80987e 112 else \
mbed_official 610:813dcc80987e 113 { \
mbed_official 610:813dcc80987e 114 (__HANDLE__)->Mask = 0x007F ; \
mbed_official 610:813dcc80987e 115 } \
mbed_official 610:813dcc80987e 116 } \
mbed_official 610:813dcc80987e 117 else if ((__HANDLE__)->Init.WordLength == USART_WORDLENGTH_7B) \
mbed_official 610:813dcc80987e 118 { \
mbed_official 610:813dcc80987e 119 if ((__HANDLE__)->Init.Parity == USART_PARITY_NONE) \
mbed_official 610:813dcc80987e 120 { \
mbed_official 610:813dcc80987e 121 (__HANDLE__)->Mask = 0x007F ; \
mbed_official 610:813dcc80987e 122 } \
mbed_official 610:813dcc80987e 123 else \
mbed_official 610:813dcc80987e 124 { \
mbed_official 610:813dcc80987e 125 (__HANDLE__)->Mask = 0x003F ; \
mbed_official 610:813dcc80987e 126 } \
mbed_official 610:813dcc80987e 127 } \
mbed_official 610:813dcc80987e 128 } while(0)
mbed_official 610:813dcc80987e 129
mbed_official 610:813dcc80987e 130 /**
mbed_official 610:813dcc80987e 131 * @brief Ensure that USART frame length is valid.
mbed_official 610:813dcc80987e 132 * @param __LENGTH__: USART frame length.
mbed_official 610:813dcc80987e 133 * @retval SET (__LENGTH__ is valid) or RESET (__LENGTH__ is invalid)
mbed_official 610:813dcc80987e 134 */
mbed_official 610:813dcc80987e 135 #define IS_USART_WORD_LENGTH(__LENGTH__) (((__LENGTH__) == USART_WORDLENGTH_7B) || \
mbed_official 610:813dcc80987e 136 ((__LENGTH__) == USART_WORDLENGTH_8B) || \
mbed_official 610:813dcc80987e 137 ((__LENGTH__) == USART_WORDLENGTH_9B))
mbed_official 610:813dcc80987e 138
mbed_official 610:813dcc80987e 139 /**
mbed_official 610:813dcc80987e 140 * @}
mbed_official 610:813dcc80987e 141 */
mbed_official 610:813dcc80987e 142
mbed_official 610:813dcc80987e 143 /* Exported functions --------------------------------------------------------*/
mbed_official 610:813dcc80987e 144
mbed_official 610:813dcc80987e 145 /**
mbed_official 610:813dcc80987e 146 * @}
mbed_official 610:813dcc80987e 147 */
mbed_official 610:813dcc80987e 148
mbed_official 610:813dcc80987e 149 /**
mbed_official 610:813dcc80987e 150 * @}
mbed_official 610:813dcc80987e 151 */
mbed_official 610:813dcc80987e 152
mbed_official 610:813dcc80987e 153 #ifdef __cplusplus
mbed_official 610:813dcc80987e 154 }
mbed_official 610:813dcc80987e 155 #endif
mbed_official 610:813dcc80987e 156
mbed_official 610:813dcc80987e 157 #endif /* __STM32L4xx_HAL_USART_EX_H */
mbed_official 610:813dcc80987e 158
mbed_official 610:813dcc80987e 159 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/