I did look in the standard library for Eaglecad, but I see no entry for the SAM D chips.
While searching, I saw posts that say to make my own, so I did.
Now, I have the schematic for the D21G, but I need the footprint. From my understanding, I can use another TQFP48 package from another chip and that should be OK.
Is this true or do I have to do from scratch also the packaging? I am not sure if I would be able to do that from scratch; the sparkfun tutorial was not really clear.
I wish there were libraries already made for the components that I need, but sadly they are not. Design with Eagle seems to put hurdles after hurdles, in front of the newbies :)