Work in progress on Albireo interface

* Complete routing for CH376 with USB host and SD card
* There were some pins free, let's see if I can sneak in a 16C550...

git-svn-id: svn://pulkomandy.tk/avrstuff@116 c6672c3c-f6b6-47f9-9001-1fd6b12fecbe
16 files changed