[Coco] Source for Coco/Arduino interface

[Matthew D Stock]

On 6/21/2013 4:00 PM, Tormod Volden wrote:
> Your designs and the way you share them are of the most awesome stuff 
> I have found on this list. Surely there have been many designs, talk, 
> and even commercial products of this kind before, but releasing design 
> files in a open-hardware way and using tools (Kicad) that can be used 
> in full freedom belong to a league above IMO. 

Thanks Tormod, I'm glad you're finding it of value.  Hopefully it will 
mean even more interesting projects in the future.  Plus, the sale of 
the programmed units helps fund my future experiments.  I still need to 
do some research to see if it's worthwhile, but I hope to apply a 
similar design to other 8-bit systems in the future, starting with the 
Commodore 64.

> I have been thinking of designing something in this direction myself, 
> but haven't gotten far. I am new to Kicad but I firmly believe it is 
> the right tool to use. I have looked at your design files and there is 
> one issue: A "colorcomputer" library is missing. The parts are present 
> in the shipped library cache so the designs appear completely, but I 
> can not as easily reuse for instance the edge connector component. Is 
> this library something you forgot to check in or must it be downloaded 
> from somewhere else? 

Yes, I haven't figured out the best way to distribute that, so just 
chalk it up to my laziness.  I'm using the common library (and a similar 
named footprint database) for all of the components I've modified or 
created since I started playing with kicad.  Many of them aren't really 
Coco-specific, but obviously the 40 pin card edge connector is one of 
the big additions, as are most of the MAX 3000A CPLD components.

I will probably put it in a separate git repo at some point, but for now 
I've put my current lib and mod files up at 
http://www.bexkat.com/coco/kicad.zip.  My skills at choosing the proper 
drill holes, pin labels, and solder mask widths have evolved over time, 
so forgive any inconsistency.  :-)
   -Matt