crc library used in layer 2 and layer 3 implementation
crc.cpp
- Committer:
- rba90
- Date:
- 2016-07-12
- Revision:
- 0:70b7787124e0
File content as of revision 0:70b7787124e0:
#include "crc.h" uint8_t crc8(const uint8_t *data, int len) { unsigned int crc = 0; for (int j = len; j; j--, data++) { crc ^= (*data << 8); for (int i = 8; i; i--) { if (crc & 0x8000) { crc ^= (CRC8_GEN << 3); } crc <<= 1; } } return (uint8_t)(crc >> 8); }