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fix syndrome matrix decode bug #1

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fix syndrome matrix decode bug #1

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22 changes: 15 additions & 7 deletions hamming_producer.m
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Original file line number Diff line number Diff line change
Expand Up @@ -12,15 +12,15 @@

clear all

K = 4; % data bits
K = 64; % data bits
USE_POLY = 0;
POLY = [0 1 0 0 1];

FILE='HammingCode.v';

% calculate correction bits
% 1.25 - still magic numbers
m = ceil(log2(1.25*K));
m = log2(K)+1;%ceil(log2(1.25*K));

if USE_POLY == 1
[h,g,n,k] = hammgen(m, POLY);
Expand Down Expand Up @@ -93,7 +93,8 @@
fprintf(fid,'\n');

for kk = 1:K
fprintf(fid,' assign DOUT[%02d] = D[%02d] ^',kk-1,kk-1);
fprintf(fid,' assign DOUT[%02d] = D[%02d] ^(',kk-1,kk-1);
%fprintf(fid,'(S==%02d%''h%X); ',m,g(kk));
and_flag = 0;
for mm = 1:m
if g(kk,mm) == 1
Expand All @@ -102,11 +103,18 @@
else
fprintf(fid,' & ');
end
if kk<11 fprintf(fid,' '); end
fprintf(fid,'S[%d]',mm-1);
else
if and_flag == 0
fprintf(fid,'!');
and_flag = 1;
else
fprintf(fid,' & !');
end
end
if kk<11 fprintf(fid,' '); end
fprintf(fid,'S[%d]',mm-1);
end
fprintf(fid,';\n');
fprintf(fid,');\n');
end
fprintf(fid,'\n');

Expand All @@ -118,4 +126,4 @@

fclose(fid);

quit
%quit