HDL Coder Variable Size Matrix
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Hello, I'm trying to do matrix multipication in fpga. For this, I would like to convert my .m function given below.
function y=sindy_product(x1,x2)%mxn . nxk
y=zeros(1,225);%mxk
iteration=1;
coder.varsize('A',[1 1000001]);
coder.varsize('B',[1 1000001]);
for i = 1:1000001:1000001*15%n,mxn
for j =1:15%k
A=x1(i:i+1000001-1);%n
B=x2(j:15:1000001*15);%k,nxk
C=0;
for k = 1:1000001
C=C+A(k)*B(k);
end
y(iteration)=C;
iteration=iteration+1;
end
end
end
Error I get:
sindy_product_fixpt:17Error'B' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:20Error'A' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:16Error'A' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:20Error'B' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:20Error'A' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:17Error'B' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:16Error'A' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:16Error'varargin_1' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:16Error'varargin_1' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:17Error'varargin_1' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:17Error'varargin_1' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:16Error'varargin_1' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:16Error'varargin_1' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:17Error'varargin_1' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:17Error'varargin_1' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:16Error'var1' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:16Error'A' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:16Error'var1' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:17Error'var1' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:17Error'B' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:17Error'var1' : Error: variable-size matrix type is not supported for HDL code generation.sindy_product_fixpt:0ErrorMATLAB HDL Coder failed in the code generation phase. See HDL Coder conformance report.
I use matricies' row vector form because hdl coder doesnt allow to use matrix form. I think my all the variables have constant size but i still get the variable-size matrix error.
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Accepted Answer
Ryan Baird
on 18 Nov 2022
coder.varsize is declaring a variable size matrix:
Initializing the matrix with the zeros function may solve your issue.
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More Answers (1)
Kiran Kintali
on 17 Nov 2022
Can you share your design and testbench and the project file used?
Thanks
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