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minhhieuec/crc16.c

Forked from tijnkooijmans/crc16.c
Created April 10, 2021 06:48
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CRC-16/CCITT-FALSE
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crc16.c
uint16_t crc16(char* pData, int length)
{
uint8_t i;
uint16_t wCrc = 0xffff;
while (length--) {
wCrc ^= *(unsigned char *)pData++ << 8;
for (i=0; i < 8; i++)
wCrc = wCrc & 0x8000 ? (wCrc << 1) ^ 0x1021 : wCrc << 1;
}
return wCrc & 0xffff;
}
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