2 Dec
2006
2 Dec
'06
7:52 a.m.
On Dec 2, 2006, at 6:39 AM, Gordon JC Pearce wrote:
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)
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. There *must* be a company that makes membrane
keyboards, and will
do a shortish run. I'd certainly donate a working-ish keyboard to
get some made up...
Yup, I mentioned one in my other message. We can get this done.
-Dave
--
Dave McGuire
Cape Coral, FL