ref: a2c587e7d7a8b72a7ef9afcd119d8cfb20076b54
dir: /qw/crc.h/
void CRC_Init(unsigned short *crcvalue); void CRC_ProcessByte(unsigned short *crcvalue, byte data); unsigned short CRC_Value(unsigned short crcvalue); unsigned short CRC_Block (byte *start, int count);