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