I am hoping someone can help me. I originally was using the Adafruit GrandCentral board which uses the SAMD51P20A MCU chip. As many of you know their is a shortage of MCU's and I cannot get any of these MCU's. The only MCU that I could purchase was SAME51N19A. Here is what I have done:
- Upload grandcentral bootloader into the new mcu. (bootloader area is write protected)
- In the boards.txt file edited the grandcentral m4 for the new mcu (memory size, etc)
- Modified the variant files for the new mcu pinouts.
When I compile using arduino IDE and download the simple led blink file to the new mcu the download seemed ok but program does not run - then it looses the port and the bootloader is bricked.
Not sure what I am missing. Any help or guidance would be greatly appreciated.