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Last commit 20 Feb 2019 by 
mbed official
Diff: targets/cmsis/TARGET_STM/TARGET_STM32L4/stm32l4xx_hal_usart_ex.h
- Revision:
- 610:813dcc80987e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32L4/stm32l4xx_hal_usart_ex.h Fri Aug 14 13:15:17 2015 +0100
@@ -0,0 +1,159 @@
+/**
+ ******************************************************************************
+ * @file stm32l4xx_hal_usart_ex.h
+ * @author MCD Application Team
+ * @version V1.0.0
+ * @date 26-June-2015
+ * @brief Header file of USART HAL Extended 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 __STM32L4xx_HAL_USART_EX_H
+#define __STM32L4xx_HAL_USART_EX_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32l4xx_hal_def.h"
+
+/** @addtogroup STM32L4xx_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 ((uint32_t)0x00000000) /*!< 8-bit long USART frame */
+#define USART_WORDLENGTH_9B ((uint32_t)USART_CR1_M0) /*!< 9-bit long USART frame */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/* Exported functions --------------------------------------------------------*/
+
+/* 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 = 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)
+
+/**
+ * @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 --------------------------------------------------------*/
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32L4xx_HAL_USART_EX_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
