8-bit Microcontrollers中的主题 CRC16 Calculation using HCS08 assembler

CRC16 Calculation using HCS08 assembler

genesis57 — Thu, 01 Oct 2009 02:56:25 GMT

Hi There

I'm a new member in this forum, and I'm looking for your help.

I was searching information for resolving CRC whith a 16 bit generator polynomial x^16+x^15+x^2+1, using a microcontroller S08 (such as 9s08GB60), but I didn' find it.

It's necessary to process a 64 bytes string of data, before it was sent.

I read about one method, using a 512bytes table and a few lines of assembler code, but I don't know how.

Regards,

Daniel

Re: CRC16 Calculation using HCS08 assembler

bigmac — Thu, 01 Oct 2009 11:05:35 GMT

Hello Daniel, and welcome to the forum.

The following thread may be of interest as it includes both 16-bit and 8-bit CRC calculation methods.

http://forums.freescale.com/freescale/board/message?board.id=8BITCOMM&message.id=1152

This thread show one look-up table method, but for an 8-bit CRC. I don't know whether using such a small table is feasible for a 16-bit CRC.

Regards,

Mac