Over the last couple days I've started getting into and learning ASF for Atmel Studio. ASF is a software framework that kind of sits between something like Arduino and raw C. The documentation is pretty good so I'm making decent progress. I started coding on the XMega and got clocks, RTC and GPIO up  and running. Made a short program to cycle between two blinking speeds when a button is held down.

Next up is to get familiar with how ASF handles interrupts and to figure out how to use the event controller to schedule tasks. If anyone knows some good resources other than the ASF docs please let me know!