Use #define values from a Matlab function

Question

Marcos Barcelo 2022-8-7

回答： Fangjun Jiang 2022-8-8

I'm working on a Stateflow chart (C action language) to generate some code.

When I call an external C function from the chart, I can use the #define values from my C code and it works fine. For example:

resut = my_function(2, MAX_NUMBER);

where MAX_NUMBER is defined in my external C code as

#define MAX_NUMBER 10

However, when I call the same C function from a Matlab Function using coder.ceval, it doesn't know what MAX_NUMBER is:

result = coder.ceval('my_function', 2, MAX_NUMBER);

Is there a way to make this work without having to redefine each value?

Answer 1

Fangjun Jiang 2022-8-8

You might need to add the C header file and source C code file to the model,

Ctrl+E, Simulation Target,

Follow the example in the document

web(fullfile(docroot, 'simulink/slref/coder.ceval.html'))