BCH(256,16,113) code

N

Niv (KP)

I'm looking at a paper owhich talks about BCH(256,16,113) code. I
think it is some form of CRC, but acn't find any details on how to
implement in VHDL. If it is just a CRC variant, I'd like to know what
the appropriate taps are.

Anyone done this already?

Regards, Kev P.
 
H

HT-Lab

Niv (KP) said:
I'm looking at a paper owhich talks about BCH(256,16,113) code. I
think it is some form of CRC, but acn't find any details on how to
implement in VHDL. If it is just a CRC variant, I'd like to know what
the appropriate taps are.

Anyone done this already?

Regards, Kev P.

It is far more complex than your ordinary CRC,

http://en.wikipedia.org/wiki/BCH_code

Galois Fields mathematics is a good place to start :)

Hans
www.ht-lab.com
 
S

Symon

Niv said:
Yes, I've tried, but it's fairly heavy going, mostly above my head;
haven't done any serious math since uni, and that was long, long ago,
in a galaxy......!!

KP.

To remind yourself about GF arithmetic, have a read of a textbook or two,
maybe Lin and Costello would be a good place to start. Also, xapp371 might
give you some insight.
HTH, Syms.
 

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