110 lines
4.5 KiB
C
110 lines
4.5 KiB
C
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/******************************************************************************
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*
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* @brief Cyclic redundancy check (CRC) header file.
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*
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******************************************************************************/
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#ifndef CRC_H_
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#define CRC_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/******************************************************************************
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* Includes
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******************************************************************************/
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/******************************************************************************
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* Constants
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******************************************************************************/
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/******************************************************************************
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* Macros
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******************************************************************************/
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/******************************************************************************
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* CRC control bit definition
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*
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*//*! @addtogroup crc_controlbit
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* @{
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*******************************************************************************/
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/*!
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* @brief CRC control register bit definition.
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*
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*/
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#define CRC_WIDTH_16BIT 0 /*!< select CRC16 protocol */
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#define CRC_WIDTH_32BIT 1 /*!< select CRC32 protocol */
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#define CRC_DATA_SEED 1 /*!< Write CRC Data Register are seed */
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#define CRC_DATA_DATA 0 /*!< Write CRC Data Register are data */
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#define CRC_READ_COMPLETE 1 /*!< Invert or complement read CRC Data register */
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#define CRC_READ_NONE 0 /*!< No XOR on reading */
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#define CRC_READ_TRANSPOSE_NONE 0 /*!< No transposition in read */
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#define CRC_READ_TRANSPOSE_BIT 1 /*!< only bits in bytes are transposed in read */
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#define CRC_READ_TRANSPOSE_ALL 2 /*!< both bits in bytes and bytes are transposed in read */
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#define CRC_READ_TRANSPOSE_BYTE 3 /*!< only bytes are transposed in read */
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#define CRC_WRITE_TRANSPOSE_NONE 0 /*!< No transposition write */
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#define CRC_WRITE_TRANSPOSE_BIT 1 /*!< only bits in bytes are transposed in write */
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#define CRC_WRITE_TRANSPOSE_ALL 2 /*!< both bits in bytes and bytes are transposed in write */
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#define CRC_WRITE_TRANSPOSE_BYTE 3 /*!< only bytes are transposed in write */
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/*! @} End of crc_controlbit */
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/******************************************************************************
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* Types
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******************************************************************************/
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/* CRC configuration structure
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*/
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/******************************************************************************
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* CRC Configuration Structure type.
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*
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*//*! @addtogroup crc_config_type
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* @{
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*******************************************************************************/
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/*!
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* @brief CRC Configuration Structure.
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*
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*/
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typedef struct
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{
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uint8_t bWidth : 1; /*!< 1: 32-bit CRC protocol , 0: 16-bit CRC protocol */
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uint8_t bDataType : 1; /*!< 1: write seed , 0: write data */
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uint8_t bFinalXOR : 1; /*!< 1: Invert or complement read , 0: No XOR on reading */
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uint8_t bRESERVED : 1; /*!< reserved bit */
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uint8_t bTransposeReadType : 2; /*!< type of transpose For read, see reference manual */
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uint8_t bTransposeWriteType : 2; /*!< type of transpose For write, see reference manual */
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uint32_t u32PolyData ; /*!< 32bit or 16-biy poly data */
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} CRC_ConfigType, *CRC_ConfigPtr ;
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/*! @} End of crc_config_type */
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/******************************************************************************
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* Global variables
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******************************************************************************/
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/******************************************************************************
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* CRC API list
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*
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*//*! @addtogroup crc_api_list
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* @{
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*******************************************************************************/
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/******************************************************************************
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* Global functions
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******************************************************************************/
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void CRC_Init(CRC_ConfigType *pConfig);
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uint32_t CRC_Cal16(uint32_t u32Seed, uint8_t *msg, uint32_t u32SizeBytes);
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uint32_t CRC_Cal32(uint32_t u32Seed, uint8_t *msg, uint32_t u32SizeBytes);
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void CRC_DeInit(void);
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/*! @} End of crc_api_list */
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#ifdef __cplusplus
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}
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#endif
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#endif /* CRC_H_ */
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