/** ****************************************************************************** * @file stm32f0xx_crc.h * @author MCD Application Team * @version V1.5.1 * @date 13-October-2021 * @brief This file contains all the functions prototypes for the CRC firmware * library. ****************************************************************************** * @attention * * Copyright (c) 2014 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef __STM32F0XX_CRC_H #define __STM32F0XX_CRC_H #ifdef __cplusplus extern "C" { #endif /*!< Includes ----------------------------------------------------------------*/ #include "stm32f0xx.h" /** @addtogroup STM32F0xx_StdPeriph_Driver * @{ */ /** @addtogroup CRC * @{ */ /* Exported types ------------------------------------------------------------*/ /* Exported constants --------------------------------------------------------*/ /** @defgroup CRC_ReverseInputData * @{ */ #define CRC_ReverseInputData_No ((uint32_t)0x00000000) /*!< No reverse operation of Input Data */ #define CRC_ReverseInputData_8bits CRC_CR_REV_IN_0 /*!< Reverse operation of Input Data on 8 bits */ #define CRC_ReverseInputData_16bits CRC_CR_REV_IN_1 /*!< Reverse operation of Input Data on 16 bits */ #define CRC_ReverseInputData_32bits CRC_CR_REV_IN /*!< Reverse operation of Input Data on 32 bits */ #define IS_CRC_REVERSE_INPUT_DATA(DATA) (((DATA) == CRC_ReverseInputData_No) || \ ((DATA) == CRC_ReverseInputData_8bits) || \ ((DATA) == CRC_ReverseInputData_16bits) || \ ((DATA) == CRC_ReverseInputData_32bits)) /** * @} */ /** @defgroup CRC_PolynomialSize * @brief Only applicable for STM32F042 and STM32F072 devices * @{ */ #define CRC_PolSize_7 CRC_CR_POLSIZE /*!< 7-bit polynomial for CRC calculation */ #define CRC_PolSize_8 CRC_CR_POLSIZE_1 /*!< 8-bit polynomial for CRC calculation */ #define CRC_PolSize_16 CRC_CR_POLSIZE_0 /*!< 16-bit polynomial for CRC calculation */ #define CRC_PolSize_32 ((uint32_t)0x00000000)/*!< 32-bit polynomial for CRC calculation */ #define IS_CRC_POL_SIZE(SIZE) (((SIZE) == CRC_PolSize_7) || \ ((SIZE) == CRC_PolSize_8) || \ ((SIZE) == CRC_PolSize_16) || \ ((SIZE) == CRC_PolSize_32)) /** * @} */ /* Exported macro ------------------------------------------------------------*/ /* Exported functions ------------------------------------------------------- */ /* Configuration of the CRC computation unit **********************************/ void CRC_DeInit(void); void CRC_ResetDR(void); void CRC_PolynomialSizeSelect(uint32_t CRC_PolSize); /*!< Only applicable for STM32F042 and STM32F072 devices */ void CRC_ReverseInputDataSelect(uint32_t CRC_ReverseInputData); void CRC_ReverseOutputDataCmd(FunctionalState NewState); void CRC_SetInitRegister(uint32_t CRC_InitValue); void CRC_SetPolynomial(uint32_t CRC_Pol); /*!< Only applicable for STM32F042 and STM32F072 devices */ /* CRC computation ************************************************************/ uint32_t CRC_CalcCRC(uint32_t CRC_Data); uint32_t CRC_CalcCRC16bits(uint16_t CRC_Data); /*!< Only applicable for STM32F042 and STM32F072 devices */ uint32_t CRC_CalcCRC8bits(uint8_t CRC_Data); /*!< Only applicable for STM32F042 and STM32F072 devices */ uint32_t CRC_CalcBlockCRC(uint32_t pBuffer[], uint32_t BufferLength); uint32_t CRC_GetCRC(void); /* Independent register (IDR) access (write/read) *****************************/ void CRC_SetIDRegister(uint8_t CRC_IDValue); uint8_t CRC_GetIDRegister(void); #ifdef __cplusplus } #endif #endif /* __STM32F0XX_CRC_H */ /** * @} */ /** * @} */