Hi @Alex_Dewar , I tried to do the following changes you mentioned but no changes happened.
this is the link to which I created the .hex file and flashed onto the target board using Segger J Link. The main_cm4.c file, this has the functions to carry out the serial communication, problem here is there is blinky function which should make LEDs in the hardware to blink but it isn’t happening so I am getting a doubt if the flashing occurred correctly or not. If this works I think the remaining will work automatically. Can you let me know if this is working for you?? There are some changes made to main_cm0 file and main_cm4.c file am not able to upload an attachment.
so can you let me know which file did you use to generate .hex file??please share it with me.
Thanks
Niharika