How do I generate code that does not copy read-only data accessed in a MATLAB Function block?

2024 6 11
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I have a MATLAB Function Block in a Simulink model that reads from a large amount of data. I would like to make sure that only one copy of this data exists in the generated code, to avoid unnecessary time and memory overhead.

How do I give the MATLAB Function Block access to this data without ever making a copy of it?

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For this application, you should use a "Simulink.Parameter". Create one in your workspace, and store your desired data into the Simulink Parameter's "Value". Then, in your MATLAB Function block, in the Symbols pane, add a new symbol of type "Parameter Data", with the same name as the Simulink Parameter you created. You can then access the parameter as if it was a function argument.
 
>> mySlParam = Simulink.Parameter;
>> mySlParam.Value = 5;

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