Generate code of function that uses simulink

Hi,

I would like to generate a C/C++ function from a matlab function that uses the sim command. Because the sim command is used in a function I had to change the 'SrcWorkspace' to current to be able to use the "FromWorkspace" input block in Simulink.

So my function for example...

function [result] = doSomthing (param1)
  param2=2;
  param3=3;

    t=0.01; % sampletime
    t_Final = 10; % stop time

    options = simset('SrcWorkspace','current');
    sim('Model',[],options);
    result = resultX; % resultX comes from the simulink model

end

The problem that I have now is that the '%#codegen' gives warnings on the "unused" variabes param1,param2,... that are only used in the simulink model. Is there a solution to this problem? How can I generate C/C++ code for a matlab function that uses simulink.

Thanks in advance, Kind regards, Jonas

Answer 1

[Prasanth]

Hi Jonas,

The workflow you are using, i.e., generating C/C++ code for a MATLAB function that calls 'sim' function to simulate a model is not a supported one.

I believe that you are looking how to generate C/C++ code for a Simulink model.

In this case, you should use Simulink Coder to generate C/C++ code from a Simulink model. The following documentation page helps you get started with Simulink Coder.

https://www.mathworks.com/help/rtw/getting-started.html

Hope this helps.