Those macros can be used to determine CRC polynomials. Those macros contains all possible terms, that can be used. Example CRC-8: X^8 + X^5 + X^4 + 1 => CRC_X5 | CRC_X4 | CRC_X0. Polynomial is represented in binary form. More...

Macros
#define	CRC_X0 (0x01UL)

#define	CRC_X1 (0x01UL << 1U)

#define	CRC_X2 (0x01UL << 2U)

#define	CRC_X3 (0x01UL << 3U)

#define	CRC_X4 (0x01UL << 4U)

#define	CRC_X5 (0x01UL << 5U)

#define	CRC_X6 (0x01UL << 6U)

#define	CRC_X7 (0x01UL << 7U)

#define	CRC_X8 (0x01UL << 8U)

#define	CRC_X9 (0x01UL << 9U)

#define	CRC_X10 (0x01UL << 10U)

#define	CRC_X11 (0x01UL << 11U)

#define	CRC_X12 (0x01UL << 12U)

#define	CRC_X13 (0x01UL << 13U)

#define	CRC_X14 (0x01UL << 14U)

#define	CRC_X15 (0x01UL << 15U)

#define	CRC_X16 (0x01UL << 16U)

#define	CRC_X17 (0x01UL << 17U)

#define	CRC_X18 (0x01UL << 18U)

#define	CRC_X19 (0x01UL << 19U)

#define	CRC_X20 (0x01UL << 20U)

#define	CRC_X21 (0x01UL << 21U)

#define	CRC_X22 (0x01UL << 22U)

#define	CRC_X23 (0x01UL << 23U)

#define	CRC_X24 (0x01UL << 24U)

#define	CRC_X25 (0x01UL << 25U)

#define	CRC_X26 (0x01UL << 26U)

#define	CRC_X27 (0x01UL << 27U)

#define	CRC_X28 (0x01UL << 28U)

#define	CRC_X29 (0x01UL << 29U)

#define	CRC_X30 (0x01UL << 30U)

#define	CRC_X31 (0x01UL << 31U)

Detailed Description

Those macros can be used to determine CRC polynomials. Those macros contains all possible terms, that can be used. Example CRC-8: X^8 + X^5 + X^4 + 1 => CRC_X5 | CRC_X4 | CRC_X0. Polynomial is represented in binary form.

Note: CRC polynomial have to be odd, so always have to contain X⁰ (CRC_X0), else it is invalid.; Polynomial doesn't have to contain highest coefficient, because it is added automatically from CRC length. For example CRC-8 polynomial is X^8 + X^5 + X^4 + 1, so you have to enter (CRC_X5 | CRC_X4 | CRC_X0), CRC_X8 is added automatically by CRC length.

Macros

Detailed Description