crc8.cpp File Reference

#include "crc8.h"
#include <avr/pgmspace.h>

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Functions
uint8_t	crc8::Calculate (const uint8_t *data, const size_t size)
	Calculate the CRC-8 checksum of data (SAE J1850 standard).

Function Documentation

Calculate()

uint8_t crc8::Calculate	(	const uint8_t *	data,
		const size_t	size )

Calculate the CRC-8 checksum of data (SAE J1850 standard).

Parameters

[in]	data	Pointer to the data to be calculated.
[in]	size	Length of the data in bytes.

Returns

uint8_t The calculated CRC value.

Uses the standard CRC-8/SAE J1850 algorithm:

• Polynomial: 0x1D (x^8 + x^4 + x^3 + x^2 + 1)
• Initial value: 0xFF
• Final XOR: 0xFF
• No input/output reversal Internally uses a 256-byte lookup table for efficient computation.

Definition at line 28 of file crc8.cpp.