Hi,

I am working on BCH code.I am implementing BCH code into hardware for nand flash memory.I have completed the encoding part of the BCH code.But I stuck into decoding part.I want to know How to calculate the syndrome.To calculate the syndrome what will be my inputs?Shooed I use the whole received code or just the output of comparator(to compare previously stored parity and new generated parity).

Thanks,

Krupesh

Hi Krupesh,
My name is Moris, and actually I'm on the same position as yourself, working on a thesis now and stuck on how to find the syndrome.

I have created the code too, but not completed, and I'm using mat lab to do it.

Can you please reply me with your code if you can? and of course I will reference it to you and also have you figured out how to calculate the syndrome? or where to look for to understand it?

Thanks so much for your time and help, hope to hear from you soon.

Kindly,
Moris

Hi Moris,

I have implemented BCH code for FPGA.I have implemented it using Verilog RTL. I have used Matlab to generate polynomial and to verify Berlekamp-Massey algorithm only.Due to our company policy I can't give you source code.

You can find a thesis to implement serial BCH code from the link given below.

http://home.agh.edu.pl/~jamro/bch_thesis/bch_thesis.html#Download

You can find matlab code for parallel BCH decoder from the link given below.

http://www.mathworks.com/matlabcentral/fileexchange/9339-bch-and-reed-Solomon-decoder-simulation

Apart from this you can refer book name "Error Correcting codes for Non Volatile Memories" to implement parallel BCH code.

Let me know if you need any other help.

Regards,

Krupesh

Hi Krupesh,
Thanks for your information and help.
I just starting to get familiar with BCH coding, and still unsure on how to find the syndrome. I dont think its that hard but I just cant get my head around it. Also finding the roots of it. Can you please guide me through this? or if you can direct me on where to look via books or web?

Thanks so much for your help.

Kindly,
Moris