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Hello to all. I need to do a crc 16 calculation in perl. My example data is 6401(hex)and CRC should be: 13BC (hex).

I've tried every combination using digest::crc and string::crc, but I've got no correct crc value.

I've received a c function for crc calculation from my device vendor, but I need this in Perl.

C Function:

unsigned short crc_16_rec (char *pucData, unsigned short ucLen) { unsigned int i; unsigned char ucBit, ucCarry; unsigned short usPoly = 0x8408;//reversed 0x1021 unsigned short usCRC = 0; for (i = 0; i < ucLen; i++) { usCRC ^= pucData[i]; for (ucBit = 0; ucBit < 8; ucBit++) { ucCarry = usCRC & 1; usCRC >>= 1; if (ucCarry) { usCRC ^= usPoly; } } } return usCRC; }

Can somebody please help me with this, because I'm stuck here!

Best Regards!

Igor

In reply to CRC 16 by igor1212

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