谁有CRC校验的详细资料或代码？？100分求

Question

如题

Answer 1

FYI:
http://wlbookwl.myrice.com/jck/1026vbcrc.htm
http://www.ahetc.gov.cn/cit/200209/23.doc

Answer 2

crc16反序码校验
unsigned short  CheckCRCSum(char *buffer, int size)
{
unsigned long cksum=0; while(size >1)
{
        cksum+=*buffer++;
size -=sizeof(unsigned char);
}
           
if(size ) cksum += *(unsigned char*)buffer;
cksum =  (cksum >> 16) + (cksum & 0xffff);
cksum += (cksum >> 16); return (unsigned short)(~cksum);
}