//CRC校验
static unsigned int ComputeBlockCrc
(
unsigned char * ptr,
unsigned int & cumulativeCrc
)
{
int len = 128;
unsigned int crc = 0;
unsigned char i;
while( len-- ) {
for(i = 0x80; i != 0; i = i >> 1) {
if((crc & 0x8000) != 0) {
crc = crc << 1;
crc = crc ^ 0x1021;
}
else {
crc = crc << 1;
}
if((*ptr & i) != 0) {
crc = crc ^ 0x1021;
}
}
ptr++;
}
cumulativeCrc = crc&0xFFFF;
return (crc&0xFFFF);
}
针对Xmodem的CRC校验代码
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转载自blog.csdn.net/imgsq/article/details/47952983
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