[Coco] [Color Computer] Re: USB Anyone?

John R. Hogerhuis jhoger at pobox.com
Sat Apr 16 13:30:44 EDT 2005


On Sat, 2005-04-16 at 16:31 +0000, James Diffendaffer wrote:
> 
> I was more interested in designing something that wouldn't require a
> device programmer or surface mount components.  Easy for a hobbyist.
> 
> I'm pretty sure I can squeeze it in a standard ROM pack.  I can always
> use a jumper wire or two to keep it on a 2 layer board... but I don't
> think I'll need it.


What package is the USB controller in?

Anyway, surface mount is doable by hobbyists. What's not really doable
is BGA parts.

I think James is on the right track, cheap CPLD for glue logic is the
way to go:

1. If there's a problem he can reprogram the CPLD without a board turn
2. Less board space so cheaper PCB
3. Pretty small. I guess it could fit into a short ROM pak?

-- John.



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