const char code crc8table[256] = {
	0x00, 0x07, 0x0e, 0x09, 0x1c, 0x1b, 0x12, 0x15, 
	0x38, 0x3f, 0x36, 0x31, 0x24, 0x23, 0x2a, 0x2d,
	0x70, 0x77, 0x7E, 0x79, 0x6C, 0x6B, 0x62, 0x65,