Based on the error message, it appears that root cause of the issue is that the checksum of the instance of the library subsystem in the model does not match with the checksum of the Function Interface defined for the library. For Embedded Coder to reuse the generated library code, the checksum of the library subsystem instance in the model should match that of the exported function interface model for the library. See the documentation page "Library-based Code Generation for Reusable Library Subsystems" to understand how to export a function interface as an independent model:
To resolve this issue, you can create a new Function Interface based on the instance of the library subsystem in the model and generate code by following the steps below:
- In the library, go to the reusable library subsystem. Right-click on the reusable subsystem, and select C/C++ Function Interfaces > Create Function Interface.
- In the Create Function Interface dialog, select Specify library block instance to create function interface. Browse and select the Simulink model with the subsystem instance. Note that if you want to reuse the existing Function Interface name, you would need to delete the existing function interface.
- Delete the existing source code in the slprj folder, and re-build the library and component.
- Alternatively, right-click on the subsystem, and select "Configure Function Interface". Select Regenerate Using Instance and click Regenerate to override the existing interface.
