[Coco] Howto for Altera DE1?

[Steven Hirsch]

On Mon, 28 Jun 2010, Mark McDougall wrote:

> Steven Hirsch wrote:
>
>>> Next issue.  The keyboard is dead.  However, I've seen discussion that 
>>> indicates a jumper change is required for 5V keyboards and will dig around 
>>> for that.
>> 
>> And, naturally, I cannot find said discussion - anywhere.  It's not 
>> documented in the DE1 manual either.
>> 
>> Anyone have the details on this?
>
> First I've heard of it!?!
>
> I did, however, have a problem with the keyboard on Coco3FPGA. And now I'm 
> trying to recall what it was... I do know that the keyboard clock frequency 
> was out of spec on one of the FPGA projects, but not sure if it was the 
> Coco3... have to scratch around...

I've tried two different keyboards.  One was from an early 90s Dell and 
the other is a modern cheapo unit.  Neither of them produces any response.



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