How I can creat a polynomial generator Reed Solomon for QR Code.

Hello, I have to make a matlab program, which should create a QR Code.

My problem is the Reed Solomon error correction

The user enters the word he wants. [...] I got a string of numbers I should be gone in a polynomial generator (Reed Solomon) (I found some sites that do this very well: http://www.pclviewer.com/rs2/calculator.html)

I would like it to happen: for example I input: 32 91 11 120 209 114 220 77 67 64 236 17 236

[Reed Solomon generator polynomial]

and I want to find out: 168 72 22 82 217 54 156 0 46 15 180 122 16

I found the functions rsenc comm.rsencoder gf ... But it is impossible to understand the operation of these functions. Functions are detailed: http://www.mathworks.fr/fr/help/comm...n.html#fp12225

I tried a code of this type :

n = 255; k = 13; % Codeword length and message length
m = 8; % Number of bits in each symbol
msg = [32 91 11 120 209 114 220 77 67 64 236 17 236]; % Message is a Galois array.
obj = comm.RSEncoder(n, k);
c1 = step(obj, msg(1,:)');
c = [c1].';

He produced a string of 255 while I want 13 output.

Thank you for your help.

[Walter Roberson]

Unfortunately that second URL is truncated. I wonder if you mean http://www.mathworks.com/help/comm/ref/comm.rsencoderclass.html