Why am I getting the following error while trying to generate an S-Function from a submodel?
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Yatharth
2024-5-24
Hi Chriag,
The error you're encountering, "fatal error: rt_zcfcn.h: No such file or directory," during the S-Function generation from a submodel, is typically due to the build process not being able to find the specified header file (rt_zcfcn.h). This file is associated with the zero-crossing functionality within Simulink models, particularly when certain blocks that require zero-crossing detection are used.
If you are using a triggered subsystem or blocks or features that require zero-crossing detection, try removing it and see if the issue is resolved.
Attaching a reference example for you
and Documentation for Zero-crossing detection
In case you still face any issue I would suggest contacting the MathWorks support as the debugging might require you to share your model.
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