cyclegadget:
Good job sticking with the project until you got it working!
Thanks =D.. Well I've learned a lot from this. Mainly that the SAM chip needs a lot of passive components in order to work.. It's not as simple as the 328p where you only need a crystal, power, a couple of caps/resistors and your up and running...
Still it would be interesting to strip components (one by one) from the board until it stops working, and by this coming down to a "true" bare minimum =P.