/* 
 * File:   crc8.h
 * Author: Emanuele Trabattoni
 *
 * Created on January 6, 2021, 3:12 PM
 */

#ifndef CRC8_H
#define	CRC8_H

uint8_t CRC8(const uint8_t *data, uint8_t len) {
  uint8_t crc = 0x00;
  while (len--) {
    uint8_t extract = *data++;
    for (uint8_t tempI = 8; tempI; tempI--) {
      uint8_t sum = (crc ^ extract) & 0x01;
      crc >>= 1;
      if (sum) {
        crc ^= 0x8C;
      }
      extract >>= 1;
    }
  }
  return crc;
}

#ifdef	__cplusplus
extern "C" {
#endif




#ifdef	__cplusplus
}
#endif

#endif	/* CRC8_H */