ZX-81 / TS 1000 keyboards

Gordon JC Pearce gordon at gjcp.net
Sat Dec 2 10:07:26 CST 2006


Dave McGuire wrote:
> On Dec 2, 2006, at 6:39 AM, Gordon JC Pearce wrote:
>>> At this late date it would probably be easier to design
>>> and build an interface so that a common PS/2-type keyboard
>>> could be used, along with some self-adhesive key-top stickers.
>>
>> Seems like overkill - the interface would need more processor power 
>> than the ZX81, most likely.
> 
>   Nah, not even close.  In the unit I mentioned in my other message on 
> this topic, the keyboard encoder processor (which also did a bunch of 
> other housekeeping) was a PIC16C65B clocked at 32KHz.  (no typo there)

I don't see that being able to handle talking to a PC keyboard, though.

Gordon


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