/**
******************************************************************************
* @file stm32f1xx_ll_crc.h
* @author MCD Application Team
* @brief Header file of CRC LL module.
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT(c) 2016 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 __STM32F1xx_LL_CRC_H
#define __STM32F1xx_LL_CRC_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f1xx.h"
/** @addtogroup STM32F1xx_LL_Driver
* @{
*/
#if defined(CRC)
/** @defgroup CRC_LL CRC
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/** @defgroup CRC_LL_Exported_Macros CRC Exported Macros
* @{
*/
/** @defgroup CRC_LL_EM_WRITE_READ Common Write and read registers Macros
* @{
*/
/**
* @brief Write a value in CRC register
* @param __INSTANCE__ CRC Instance
* @param __REG__ Register to be written
* @param __VALUE__ Value to be written in the register
* @retval None
*/
#define LL_CRC_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
/**
* @brief Read a value in CRC register
* @param __INSTANCE__ CRC Instance
* @param __REG__ Register to be read
* @retval Register value
*/
#define LL_CRC_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
/**
* @}
*/
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup CRC_LL_Exported_Functions CRC Exported Functions
* @{
*/
/** @defgroup CRC_LL_EF_Configuration CRC Configuration functions
* @{
*/
/**
* @brief Reset the CRC calculation unit.
* @rmtoll CR RESET LL_CRC_ResetCRCCalculationUnit
* @param CRCx CRC Instance
* @retval None
*/
__STATIC_INLINE void LL_CRC_ResetCRCCalculationUnit(CRC_TypeDef *CRCx)
{
WRITE_REG(CRCx->CR, CRC_CR_RESET);
}
/**
* @}
*/
/** @defgroup CRC_LL_EF_Data_Management Data_Management
* @{
*/
/**
* @brief Write given 32-bit data to the CRC calculator
* @rmtoll DR DR LL_CRC_FeedData32
* @param CRCx CRC Instance
* @param InData value to be provided to CRC calculator between between Min_Data=0 and Max_Data=0xFFFFFFFF
* @retval None
*/
__STATIC_INLINE void LL_CRC_FeedData32(CRC_TypeDef *CRCx, uint32_t InData)
{
WRITE_REG(CRCx->DR, InData);
}
/**
* @brief Return current CRC calculation result. 32 bits value is returned.
* @rmtoll DR DR LL_CRC_ReadData32
* @param CRCx CRC Instance
* @retval Current CRC calculation result as stored in CRC_DR register (32 bits).
*/
__STATIC_INLINE uint32_t LL_CRC_ReadData32(CRC_TypeDef *CRCx)
{
return (uint32_t)(READ_REG(CRCx->DR));
}
/**
* @brief Return data stored in the Independent Data(IDR) register.
* @note This register can be used as a temporary storage location for one byte.
* @rmtoll IDR IDR LL_CRC_Read_IDR
* @param CRCx CRC Instance
* @retval Value stored in CRC_IDR register (General-purpose 8-bit data register).
*/
__STATIC_INLINE uint32_t LL_CRC_Read_IDR(CRC_TypeDef *CRCx)
{
return (uint32_t)(READ_REG(CRCx->IDR));
}
/**
* @brief Store data in the Independent Data(IDR) register.
* @note This register can be used as a temporary storage location for one byte.
* @rmtoll IDR IDR LL_CRC_Write_IDR
* @param CRCx CRC Instance
* @param InData value to be stored in CRC_IDR register (8-bit) between between Min_Data=0 and Max_Data=0xFF
* @retval None
*/
__STATIC_INLINE void LL_CRC_Write_IDR(CRC_TypeDef *CRCx, uint32_t InData)
{
*((uint8_t __IO *)(&CRCx->IDR)) = (uint8_t) InData;
}
/**
* @}
*/
#if defined(USE_FULL_LL_DRIVER)
/** @defgroup CRC_LL_EF_Init Initialization and de-initialization functions
* @{
*/
ErrorStatus LL_CRC_DeInit(CRC_TypeDef *CRCx);
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/**
* @}
*/
/**
* @}
*/
#endif /* defined(CRC) */
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32F1xx_LL_CRC_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/