Simulink coder for model containing FMU

Dear matlab support,

I am using a Simulink model containing an FMU which is created with the mutlibody simulation software MBSim.

I would like to export the whole model to an external hardware. I have found the example "Compile Source Code for Functional Mock-up Units" which relies on the example "slrt_ex_vanderpol.slx" in the directory "C:\Program Files\MATLAB\R2022a\toolbox\slrealtime\examples".

If I build C++ code from the Simulink model in this example using the Simulink coder app, everything works fine. If I do the same with my model I get the error: Error during code generation: fl:filesystem:PathNotFound

I assume that the problem is in the generation of the FMU itself, i.e. outside simulink. However, I can not figure out where the problem is. In particular, it is not clear to me how to generate the files in the "sources" directory of the example, which I expect are used to create the FMU.

Do you have any suggestions how I could get rid of this problem?

Thank you very much in advance

Best regards

Francesco

Answer 1

[Guru Kumaresan]

This issue can be due any of the following:

1) Missing binaries for Simulink Real Time:

The binaries for Simulink real time must exist in the folder 'slrt_x64' inside FMU before generating code.

Refer to the following link for more information on the same:

https://www.mathworks.com/help/slrealtime/ug/build-considerations-for-functional-mockup-units.html

2) Incorrect binaries present in the FMU file

This occur can occur if the file name of the binary 'binaries/slrt_x64/all.so' is incorrect in the FMU file.

The issue can be resolved by changing the binary name from the 'all.so' to 'model_name.so' in the FMU file.