#pragma once

#include <stdint.h>

union avr_chksum
{
	struct
	{
		uint8_t sum8;
		uint8_t xor8;
	};
	uint16_t combined;
};
typedef union avr_chksum avrChksum;
typedef union avr_chksum CHKSUM;



void chksum(CHKSUM* chksum,void* block,uint8_t len);