How to build an SFunction which uses an external data file?

Hi,

I am currently working on real time and HIL simulations. I have a complicated model written in Fortran 90 which needs a bunch of data input files (*.dat) to run. I have already written a C MEX wrapper and successfully run my model in a Level-2 SFunction with normal simulation mode. Unfortunately, I don't know how to build and download data input files beside .obj and .lib files to target system with xPC Target.

I've seen in Real Time Workshop help documentation that I need to provide a global data map record which would be added to the "CompiledModel" structure in the model.rtw file. Is this the only way to tackle with this problem? Please help me.