I’m working on a tire model that uses a data store to hold a bunch of tire parameters with a bus structure defined by the attached “tireParamBus.h” header. I generate the bus structure using the “Simulink.importExternalCTypes” function which give me a bus definition in the base workspace defined as “tireParamBus” with an imported data scope and the “tireParamBus.h” header file.
I then have a tire model which is implemented as an S-Function which gets a pointer to this data store in the mdlStart function and stores the pointer in a DWork vector for use by the derivatives and outputs. The S-Function has a wrapper tlc file for code generation which works when building the model as a standalone model.
The problem I’m having is when I integrate this model with my airplane simulation, the struct tireParamBus is redefined in the “…_types.h” header.
If I delete the TIRE_PARAMS data store, this issue goes away (so do my parameters).
My question is: is there a setting somewhere in the Data Store Memory block I can set to force the data store to use my previous definition of tireParamBus? I have tried a few different Storage Class options, but none seem to work.