Hi everyone. My first post here. I've been getting familiar with the Adafruit Feather M4 CAN Express with ATSAME51 because it is the perfect micro for a project I am developing that needs the power of the M4 core and the built in dual CAN FD controllers. Awesome chip, however, this chip oddly seems to have no love or native Arduino support. It seems Adafruit is the only company to truly give it the effort to create an Arduino board support and a Bossa compatible bootloader that I have been able to find (except for a couple hacks that don't seem to work). Interestingly even Adafruit's own board support shoves the SAME51 into a SAMD board package as a strange one-off.
For my own platform though, now that I have used the Adafruit board to prove out my hardware and Arduino software, I am making a PCB with the ATSAME51J19A but I don't want to use the Adafruit board package. Not looking for the UF2 support drive letter that pops up each time. I just simply want a BOSSA compatible bootloader and an Arduino board support.
Is Arduino working to add this micro natively? Has anyone taken on this task to recreate their own or is Adafruit the only one that has ever done this? Is anyone willing help a novice out on attempting this if there is not a solution out there already?
Thanks in advance!