I did try connecting the card and downloading the successfully compiled code. However it gave the error (image below).
I tried to look for where this 500 Hz setting is - but I did not find it.
I then tried to see what the difference in your project set up was against my very simple program and spotted the CMSIS_NN folder. I picked it up as in and pasted in my project and that compiled successfully and also downloaded the firmware.
Is the error below related to Serial connection? The board I use - I do not need to do any of that and I am able to simply put a printf() and it shows in my Serial.Monitor.
If you help me with where I can change the settings/code I will do that and retry downloading your compiled code and give you an update.
Once again - Thank you very much for helping.