[Coco] [Color Computer] USB project

John R. Hogerhuis jhoger at pobox.com
Fri Jul 29 18:24:37 EDT 2005

On Fri, 2005-07-29 at 22:48 +0100, Phill Harvey-Smith wrote:
> John R. Hogerhuis wrote:

> > If some kind of PLD, you could always defer this question and use
> > whatever mmio you need for now.
> I believe when we discussed this a while back he said he wanted to use 
> standard LS type logic to make it easier for the home constuctor to 
> build as you don't need custom programmers etc.

That's my recollection too (seems I remember ideas I disagree with
better than those where I agree). But I have half a memory of him
changing his mind, probably wrong, which is why I asked.

In any event, this kind of issue can be deferred when you do all logic
aside from power stuff in the CPLD or FPGA. We've been using CPLD in our
hobbyist project at http://bitchin100.com/remem_project.htm . But we
have to since our board has to be crammed into a TRS-80 Model 100. Also
we need several surface mount parts in any event.

-- John.

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