c的代码
//crc表
unsigned char cdt_crc_dat[256]={0x0,0x7,0xe,0x9,0x1c,0x1b,0x12,0x15,
0x38,0x3f,0x36,0x31,0x24,0x23,0x2a,0x2d,
0x70,0x77,0x7e,0x79,0x6c,0x6b,0x62,0x65,
0x48,0x4f,0x46,0x41,0x54,0x53,0x5a,0x5d,
0xe0,0xe7,0xee,0xe9,0xfc,0xfb,0xf2,0xf5,
0xd8,0xdf,0xd6,0xd1,0xc4,0xc3,0xca,0xcd,
0x90,0x97,0x9e,0x99,0x8c,0x8b,0x82,0x85,
0xa8,0xaf,0xa6,0xa1,0xb4,0xb3,0xba,0xbd,
0xc7,0xc0,0xc9,0xce,0xdb,0xdc,0xd5,0xd2,
0xff,0xf8,0xf1,0xf6,0xe3,0xe4,0xed,0xea,
0xb7,0xb0,0xb9,0xbe,0xab,0xac,0xa5,0xa2,
0x8f,0x88,0x81,0x86,0x93,0x94,0x9d,0x9a,
0x27,0x20,0x29,0x2e,0x3b,0x3c,0x35,0x32,
0x1f,0x18,0x11,0x16,0x3,0x4,0xd,0xa,
0x57,0x50,0x59,0x5e,0x4b,0x4c,0x45,0x42,
0x6f,0x68,0x61,0x66,0x73,0x74,0x7d,0x7a,
0x89,0x8e,0x87,0x80,0x95,0x92,0x9b,0x9c,
0xb1,0xb6,0xbf,0xb8,0xad,0xaa,0xa3,0xa4,
0xf9,0xfe,0xf7,0xf0,0xe5,0xe2,0xeb,0xec,
0xc1,0xc6,0xcf,0xc8,0xdd,0xda,0xd3,0xd4,
0x69,0x6e,0x67,0x60,0x75,0x72,0x7b,0x7c,
0x51,0x56,0x5f,0x58,0x4d,0x4a,0x43,0x44,
0x19,0x1e,0x17,0x10,0x5,0x2,0xb,0xc,
0x21,0x26,0x2f,0x28,0x3d,0x3a,0x33,0x34,
0x4e,0x49,0x40,0x47,0x52,0x55,0x5c,0x5b,
0x76,0x71,0x78,0x7f,0x6a,0x6d,0x64,0x63,
0x3e,0x39,0x30,0x37,0x22,0x25,0x2c,0x2b,
0x6,0x1,0x8,0xf,0x1a,0x1d,0x14,0x13,
0xae,0xa9,0xa0,0xa7,0xb2,0xb5,0xbc,0xbb,
0x96,0x91,0x98,0x9f,0x8a,0x8d,0x84,0x83,
0xde,0xd9,0xd0,0xd7,0xc2,0xc5,0xcc,0xcb,
0xe6,0xe1,0xe8,0xef,0xfa,0xfd,0xf4,0xf3};
int main(void){
int tmp;
unsigned char crc_byte;
unsigned int cdt_t_buf[6];
unsigned int dat0,dat1,dat2,dat3,dat4;
dat0=0xe0;
dat1=0x33;
dat2=0x01;
dat3=0xCC;
dat4=0x00;
dat3=dat1;
dat4=dat2;
cdt_t_buf[0]=dat0;//make crc
cdt_t_buf[1]=dat1;
cdt_t_buf[2]=dat2;
cdt_t_buf[3]=dat3;
cdt_t_buf[4]=dat4;
crc_byte=dat1^cdt_crc_dat[dat0];
crc_byte=dat2^cdt_crc_dat[crc_byte];
crc_byte=dat3^cdt_crc_dat[crc_byte];
crc_byte=dat4^cdt_crc_dat[crc_byte];
crc_byte=cdt_crc_dat[crc_byte];
crc_byte=~crc_byte;
cdt_t_buf[5]=crc_byte;
}
