crc.h 1.2 KB

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  1. /*
  2. This program is free software: you can redistribute it and/or modify
  3. it under the terms of the GNU General Public License as published by
  4. the Free Software Foundation, either version 3 of the License, or
  5. (at your option) any later version.
  6. This program is distributed in the hope that it will be useful,
  7. but WITHOUT ANY WARRANTY; without even the implied warranty of
  8. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  9. GNU General Public License for more details.
  10. You should have received a copy of the GNU General Public License
  11. along with this program. If not, see <http://www.gnu.org/licenses/>.
  12. */
  13. /*
  14. interfaces to ArduPilot collection of CRCs.
  15. */
  16. #pragma once
  17. uint16_t crc_crc4(uint16_t *data);
  18. uint8_t crc_crc8(const uint8_t *p, uint8_t len);
  19. uint16_t crc_xmodem_update(uint16_t crc, uint8_t data);
  20. uint16_t crc_xmodem(const uint8_t *data, uint16_t len);
  21. uint32_t crc_crc32(uint32_t crc, const uint8_t *buf, uint32_t size);
  22. // Copyright (C) 2010 Swift Navigation Inc.
  23. // Contact: Fergus Noble <fergus@swift-nav.com>
  24. uint16_t crc16_ccitt(const uint8_t *buf, uint32_t len, uint16_t crc);
  25. uint16_t calc_crc_modbus(uint8_t *buf, uint16_t len);