E.g. keyboard display FF-A(return data 0001), said when fault occurs the inverter state:
forward command、forward state、accelerating running
I-4-5. CRC checkup sum
Data meaning:data frame CRC checkup sum, using 2 bytes.
Checkup sum = address + function code + data
Enclose:CRC computation program:
unsigned int cal_crc16 (unsigned char *data, unsigned int length)
{
unsigned int i,crc_result=0xffff;
while(length--)
{
crc_result^=*data++;
for(i=0;i<8;i++)
{