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Honeywell VFD CORE

Honeywell VFD CORE
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CHAPTER 12: DESCRIPTION OF PARAMETER SETTINGS
63-4528—04 218
int j;
unsigned int reg_crc=0Xffff;
while(length--){
reg_crc ^= *data++;
for(j=0;j<8;j++){
if(reg_crc & 0x01){ /* LSB(b0)=1 */
reg_crc=(reg_crc>>1) ^ 0Xa001;
}else{
reg_crc=reg_crc >>1;
}
}
}
return reg_crc; // return register CRC

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