Error using Matlab HDL Coder

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Jamil Hayder
Jamil Hayder 2015-12-8
回答： Juan Valverde 2016-2-15
Hi, Can some one please help out.Thanks. I am trying to convert below code to VHDL using HDL Coder but getting error. The HDL Coder Block file is also attached .Please can you have a look on it and see whats the mistake in block diagram.
x1=[1 2 3 4 5 6 7 8 9];
x2=[3 4 5 6 7 8 9 2 1];
n=length(x1);
xc=zeros(2*n-1,1);
for i=1:2*n-1
if(i>n)
j1=1;
k1=2*n-i;
j2=i-n+1;
k2=n;
else
j1=n-i+1;
k1=n;
j2=1;
k2=i;
end
xc(i)=sum(conj(x1(j1:k1)).*x2(j2:k2));
end
xc=flipud(xc);
Error:
Cannot connect to model 'prc4'; please try Update Diagram (Ctrl-D).
Error due to multiple causes.
Errors occurred during parsing of MATLAB function 'MATLAB Function'(#24)
Error in port widths or dimensions. Output port 1 of 'prc4/MATLAB Function/u' is a one dimensional vector with 1 elements.
Can some please help me out what could be the reason of this error.

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回答（1 个）

Juan Valverde
Juan Valverde 2016-2-15
Hello,
Re-Check data types and ports. Use fix point and be sure that all calculations can be represented by the data types you selected for the model.

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