Use of Simulink-generated MEX function within MATLAB

Assume that you have a MATLAB function that generates a waveform (vector A) and a Simulink model that represents a combination of filters.

Is there any way, by which, the Simulink model can be invoked through MATLAB as a MEX function (eg B = sim_func_mex(A)) in order to pass the waveform through the filters and obtain the output (vector B) WITHOUT opening Simulink (ie without issuing a sim() command) and without requiring a Simulink license?

This scenario is very common, where a number of people need to work on a MATLAB function but DO NOT need access (i.e. they do not need to view/modify) the Simulink model.

Any help would be very much appreciated.

Regards, Ioannis

Answer 1

[Titus Edelhofer]

Hi Ioannis,

if you have Simulink Coder available, you can convert your Simulink model to C Code (and create either an executable or a dll). This you (other users) can call then from MATLAB without the need of Simulink. What you need though is the license for Simulink Coder ...

Titus

Answer 2

[Ioannis Sarris]

Thanks Titus for your answer. I have thought of this possibility but I would expect that a simpler solution should be possible, since this requires building a MEX wrapper for the C-code and compiling it. At the end of the day, Simulink creates a MEX file of your model in Accelerated mode, so why is it not possible to reuse that?

Thanks again.

[Simon Meyer]

Hello Ioannis,

currently I am struggeling with the same problem. I know this post is pretty old, but did you find any good way to solve this issue, or can you give any advice for me?

Thank you very much!

Simon