#ifndef PROTOCOL_H
#define PROTOCOL_H

#include <stdint.h>

#define MAGIC_SIZE 4
#define CRC_SIZE 2

static const uint8_t PACKET_MAGIC[MAGIC_SIZE] =
{
    0xA5,
    0x5A,
    0xC3,
    0x3C
};


uint16_t crc16(
        const uint8_t *data,
        uint32_t len);


#endif