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Diff: targets/cmsis/TARGET_STM/TARGET_NUCLEO_L053R8/stm32l0xx_hal_usart_ex.h
- Revision:
- 181:a4cbdfbbd2f4
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_STM/TARGET_NUCLEO_L053R8/stm32l0xx_hal_usart_ex.h Wed May 07 13:15:08 2014 +0100 @@ -0,0 +1,207 @@ +/** + ****************************************************************************** + * @file stm32l0xx_hal_usart_ex.h + * @author MCD Application Team + * @version V1.0.0 + * @date 22-April-2014 + * @brief Header file of USART HAL Extension module. + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2014 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 __STM32L0xx_HAL_USART_EX_H +#define __STM32L0xx_HAL_USART_EX_H + +#ifdef __cplusplus + extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "stm32l0xx_hal_def.h" + +/** @addtogroup STM32L0xx_HAL_Driver + * @{ + */ + +/** @addtogroup USARTEx + * @{ + */ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/** @defgroup USARTEx_Extended_Exported_Constants + * @{ + */ + +/** @defgroup USARTEx_Word_Length USART 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) +#define IS_USART_WORD_LENGTH(LENGTH) (((LENGTH) == USART_WORDLENGTH_7B) || \ + ((LENGTH) == USART_WORDLENGTH_8B) || \ + ((LENGTH) == USART_WORDLENGTH_9B)) +/** + * @} + */ + +/** + * @} + */ + +/* Exported macro ------------------------------------------------------------*/ + +/** @defgroup USARTEx_Extended_Exported_Macros + * @{ + */ + +/** @brief Reports the USART clock source. + * @param __HANDLE__: specifies the USART Handle + * @param __CLOCKSOURCE__ : output variable + * @retval the USART clocking source, written in __CLOCKSOURCE__. + */ +#define __HAL_USART_GETCLOCKSOURCE(__HANDLE__,__CLOCKSOURCE__) \ + do { \ + if((__HANDLE__)->Instance == USART1) \ + { \ + switch(__HAL_RCC_GET_USART1_SOURCE()) \ + { \ + case RCC_USART1CLKSOURCE_PCLK2: \ + (__CLOCKSOURCE__) = USART_CLOCKSOURCE_PCLK2; \ + break; \ + case RCC_USART1CLKSOURCE_HSI: \ + (__CLOCKSOURCE__) = USART_CLOCKSOURCE_HSI; \ + break; \ + case RCC_USART1CLKSOURCE_SYSCLK: \ + (__CLOCKSOURCE__) = USART_CLOCKSOURCE_SYSCLK; \ + break; \ + case RCC_USART1CLKSOURCE_LSE: \ + (__CLOCKSOURCE__) = USART_CLOCKSOURCE_LSE; \ + break; \ + default: \ + break; \ + } \ + } \ + else if((__HANDLE__)->Instance == USART2) \ + { \ + switch(__HAL_RCC_GET_USART2_SOURCE()) \ + { \ + case RCC_USART2CLKSOURCE_PCLK1: \ + (__CLOCKSOURCE__) = USART_CLOCKSOURCE_PCLK1; \ + break; \ + case RCC_USART2CLKSOURCE_HSI: \ + (__CLOCKSOURCE__) = USART_CLOCKSOURCE_HSI; \ + break; \ + case RCC_USART2CLKSOURCE_SYSCLK: \ + (__CLOCKSOURCE__) = USART_CLOCKSOURCE_SYSCLK; \ + break; \ + case RCC_USART2CLKSOURCE_LSE: \ + (__CLOCKSOURCE__) = USART_CLOCKSOURCE_LSE; \ + break; \ + default: \ + break; \ + } \ + } \ + } while(0) + +/** @brief Reports 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 + * @param __MASK__ : output variable + * @retval mask to apply to USART RDR register value. + */ +#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) + +/** + * @} + */ + +/* Exported functions --------------------------------------------------------*/ +/* Initialization/de-initialization methods **********************************/ +/* IO operation methods *******************************************************/ +/* Peripheral Control methods ************************************************/ +/* Peripheral State methods **************************************************/ + + +/** + * @} + */ + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + +#endif /* __STM32L0xx_HAL_USART_EX_H */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/