text: // RHCRC.h
  //
  // Definitions for RadioHead compatible CRC outines.
  //
  // These routines originally derived from Arduino source code. See RHCRC.cpp
  // for copyright information
  // $Id: RHCRC.h,v 1.1 2014/06/24 02:40:12 mikem Exp $
  
  #ifndef RHCRC_h
  #define RHCRC_h
  
  #include "RadioHead.h"
  
  extern uint16_t RHcrc16_update(uint16_t crc, uint8_t a);
  extern uint16_t RHcrc_xmodem_update (uint16_t crc, uint8_t data);
  extern uint16_t RHcrc_ccitt_update (uint16_t crc, uint8_t data);
  extern uint8_t  RHcrc_ibutton_update(uint8_t crc, uint8_t data);
  
  #endif
  