Problem with the level 2 M file S function

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I wrote the lvl 2 M file which consists of the If Elseif loop. and my i/p to the S function block is two sine wave blocks. Below is the logic which I used...
function Update(block)
vsd = block.InputPort(1).Data;
vsq = block.InputPort(2).Data;
%k = block.Dwork(1).Data;
%x = block.Dwork(2).Data;
if vsd>0 & vsq>=0 & vsd>vsq;
k=1;
elseif vsd>0 & vsq>=0 & vsd<=vsq;
k=2;
elseif vsd<=0 & vsq>0;
k=3;
elseif vsd<0 & vsq<=0 & vsd<vsq;
k=4;
elseif vsd<0 & vsq<0 & vsd>=vsq;
k=5;
elseif vsd>=0 & vsq<0;
k=6;
end
block.Dwork(1).Data = k;
%end function
Now the question is it gives me the desired o/p only for the smaller simulation times, as I increased the simulation times, I didn't get the o/p which I want. It's like this If Elseif loop is true only for the first one or two cycles of the sine waves only.
So can anyone help me??
  1 个评论
Kaustubha Govind
Kaustubha Govind 2012-7-12
Perhaps you should set breakpoints in your code to debug the issue? It's hard for us to tell without looking at your input signal.

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