Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add the ARM CMSIS definitions (obtained from an Arduino copy of libsam) in preparation for Arduino Due support. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add GPIO definitions for the AT90USB1286. Add code for communicating over USB port on AT90USB1286. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>