Well we have had all the fun with 68K designs, but I would really like
to build a 6809 system. Any one know of a source for boards for a
simple system with say Serial Port and Parallel Port and memory?
Buy a color computer or a dragon. It's pretty much a clone of the appnote.
Otherwise, try Frank Wilson's design via
http://koti.mbnet.fi/~atjs/mc6809/
(Because my design never worked right :-)
W