crc_hash.h

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#ifndef _CRC_HASH_
#define _CRC_HASH_

#include "stm32f4xx.h"

#define WIDTH                   (8)
#define CRC_HASH_TABLE_SIZE     (256)
#define TOP_BIT                 (1 << 7)

class CRC_Hash
{
public:
        CRC_Hash(uint8_t polynomial);
        CRC_Hash(CRC_Hash &&) = default;
        CRC_Hash(const CRC_Hash &) = default;
        CRC_Hash &operator=(CRC_Hash &&) = default;
        CRC_Hash &operator=(const CRC_Hash &) = default;
        ~CRC_Hash() { }

        uint8_t get_Hash(uint8_t* buf, uint16_t len);

private:
        uint8_t table_[CRC_HASH_TABLE_SIZE];
};

#endif