Fri Jul 4 15:43:55 EDT 2014

Synth on dip40 board 4550.

100 p0
50 pwm

Signal is visible on scope between RB2 and RB3.

- console hangs
- frequency is too high

Frequency should be fixable with prescalers.  Probably best to run it
at the same resolution as on the 8MHz clock, so slow down 6x to run on
48MHz.  (4x or 8x -> seems it needs to be 4x since TMR2 doesn't do 8x)

The console hang needs code review or another way to test clobber.