this defines are values for the calculation of CRC with 8 bits

Macros
#define	CRC8_SAEJ1850_POLYNOMIAL   0x1D
#define	FIRSTCALLCRC8   0xFF
#define	CRC8NBITS   8
#define	CRC8MSB   0x80

Detailed Description

Macro Definition Documentation

CRC8_SAEJ1850_POLYNOMIAL

#define CRC8_SAEJ1850_POLYNOMIAL   0x1D

Polynomial of CRC8_SAEJ1850

CRC8MSB

#define CRC8MSB   0x80

Most significant bit of a byte

CRC8NBITS

#define CRC8NBITS   8

Number of bits of a byte

FIRSTCALLCRC8

#define FIRSTCALLCRC8   0xFF

Value of CRC if is first call