[Coco] CocoSDC

[Darren A]

There have been 2 production runs of the CoCo SDC thus far. I was not
planning to do a third.

I have no problem with making the files public. All 4 chips on the board
require custom programming (1 micro controller, 2 CPLD and 1 flash) so it's
probably not something the typical hobbyist would want to undertake. If
someone wants to produce more batches of these, I would be willing to work
out an arrangement to provide that person with pre-programmed chips.

Darren