I was trying to write simple porting for the Arduino Vidor 4000. It has a Samd21 processor and Intel FPGA. Leaving the FPGA part aside at this moment, I just created a new board and created the required files for a new board. I followed the other MKR boards and pasted the makefiles, include/files.h etc. for samd21 based boards.
Then I created a simple application to turn on the GPIO pin on the board. It has failed.!! The example build successfully and flashed but the LED didn’t turn on
For MKR board there is most of the board-specific code inside a boards/comman/arduino_mkr folder. The board itself has only makefile and board.h files. I am not sure what has gone wrong. BTW the board is working when I flash with make flash.