How to solve a matlab function on simulink? (output cannot be an mxArray in this context)
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I'm using a matlab function on simulink like this:
function [u1,u2] = fcn(To,desf,clock)
t = clock;
F=1/To;
coder.extrinsic('square');
u1=square(2*pi*F*t);
u2=square(2*pi*F*(t-desf));
end
But appears this mistake:
Function output 'u1' cannot be an mxArray in this contextoutput 'u1' cannot be an mxArray in this context. Consider preinitializing the output variable with a known type. Function 'Controlador/Controlo/Modelador/MATLAB Function1' (#248.10.12), line 1, column 11: "u1" Launch diagnostic report.
How do I solve this?
回答（1 个）
Walter Roberson
2019-1-4
u1 = zeros(size(t));
u2 = zeros(size(t));
before doing the current assignments to u1 and u2.
2 个评论
Rafael Cordero
2020-10-20
What if you don't know what the size of u1 and u2 will be? Is there a way around that?
Walter Roberson
2020-10-20
I am not sure. You might be able to use coder.varsize
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2019-1-3
2020-10-20
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