I am using the latest Arduino Simulink support package and am able to build my model and flash to my module using run on target. I would like to be able to change the build process so that I can build the binary (hex) files only, and not flash but of course the build fails when the Arduino is disconnected. There are also a number of other things i would like to customize.
I remember in the previous Arduino support there was a template makefile, and some m scripts that ran at build time which were modifyable. I cannot locate anything in the new support package that will allow me to customize the build.