CMake build outdated

[KiranKanchi]

Hi Philipp, Do you by any chance have local copy of the mnist demo ? I am running into a lot of missing files and folders when I am trying to build from CMake.

Thank you, Kind regards, KiranKanchi

[PhilippvK]

I stopped using STM32 boards and TFLM two years ago, thus I am not able to provide you much support.

However I pushed a few commits pinning the versions of dependencies (CubeMX firmware, CMSIS, Flatbuffers) to roughly the versions I used in 2020. You might have to use and older version of the ARM GCC as well. I got it to compile after applying these patches but didn't test flashing it onto real HW. While it would be great if you would get the original project running, keep in mind that this uses legacy versions of TFLM and CMSISNN and I can not put any effort in porting the project to the latest versions.