GY-63_MS5611/libraries/CRC/CRC64.h
rob tillaart 87ad71de4d 0.1.4 CRC
2021-12-14 20:22:40 +01:00

54 lines
1.2 KiB
C++

#pragma once
//
// FILE: CRC64.h
// AUTHOR: Rob Tillaart
// PURPOSE: Arduino class for CRC64
// URL: https://github.com/RobTillaart/CRC
#include "Arduino.h"
#define CRC64_DEFAULT_POLYNOME 0x814141AB // TODO
class CRC64
{
public:
CRC64();
// set parameters to default
void reset(); // set all to constructor defaults
void restart(); // reset crc with same parameters.
// set parameters
void setPolynome(uint64_t polynome) { _polynome = polynome; };
void setStartXOR(uint64_t start) { _startMask = start; };
void setEndXOR(uint64_t end) { _endMask = end; };
void setReverseIn(bool reverseIn) { _reverseIn = reverseIn; };
void setReverseOut(bool reverseOut) { _reverseOut = reverseOut; };
void add(uint8_t value);
void add(uint8_t * array, uint32_t length);
uint64_t getCRC(); // returns CRC
uint64_t count() { return _count; };
private:
uint64_t _reverse(uint64_t value);
uint8_t _reverse8(uint8_t value);
void _update(uint8_t value);
uint64_t _polynome;
uint64_t _startMask;
uint64_t _endMask;
uint64_t _crc;
bool _reverseIn;
bool _reverseOut;
bool _started;
uint64_t _count;
};
// -- END OF FILE --