HDL Coder. Undefined function or variable '***'. The first assignment to a local variable determines its class.

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SALVADOR CANAS
SALVADOR CANAS 2018-1-16
回答： Kiran Kintali 2020-8-1
Hi guys,
I've written a Matlab function which works fine. Now I'm trying to covert it to Verilog using HDL Coder, but I've found lots of errors, like:
Undefined function or variable 'kernel'. The first assignment to a local variable determines its class.
How can I solve it?
Thanks in advance!
My function is:
function out = convolve3(in, kernel, P, S);
[kRows, kCols]=size(kernel);
[rows, cols] = size (in);
oRows = (rows-kRows+2*P)/S+1;
oCols = (cols-kCols+2*P)/S+1;
kCenterX = floor(kCols / 2);
kCenterY = floor(kRows / 2);
out = zeros(oRows,oCols);
for i= 1 : 1 : oRows
for j= 1 : 1 : oCols
for m= 1 : (kRows)
mm = kRows +1- m;
for n= 1 : (kCols)
nn = kCols +1- n;
ii = (i-1)*S+1 + (m - kCenterY)-P;
jj = (j-1)*S+1 + (n - kCenterX)-P;
if( ii > 0 && ii <= rows && jj > 0 && jj <= cols )
out(i,j) = out(i,j) + in(ii,jj) * kernel(mm,nn);
end
end
end
end
end
end

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回答（2 个）

Kiruthika Balakrishnan
I am also getting same error .Did you cleared error?
Thanks in advance
Kiran Kintali
Kiran Kintali 2020-8-1
Hi Salvador, Can you share a testbench file for this design? Test bench determines the compute the input types used to compile the design and in addition validation of the generated code.

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