> I started this message is response to the question "has
> anyone made any progress on their Cinematronics stuff?" so I
> thought I'd add this link:
> http://www.biltronix.com/CCPU_Custom_Chip_Replacements.html
> I have tested this small devices on my own CCPU boards and so
> far so good.
Cool, Bill-- and handy. ;-)
I don't know if I posted this here or not (I know I mentioned it somewhere
or other) a while back, but I did this thing for SW/ESB:
http://www.embeddedengineeringllc.com/swesb/SW_deprom.jpg
Gets rid of all four of the mathbox PROMs on SW/ESB boards (and usually two
or three *WATTS* of heat generation from the bipolars to boot!).
It is a decidedly un-clever solution. It's just two ~45ns, 5V, OTP EPROMs
with the mathbox code repeated a bazillion times. ;-)
The one running in our machine at Ground Kontrol has passed 7500 hours now--
no failures, glitches, or other weirdness. (Anthony commented to me that we
actually hit a one year anniversary on keeping Star Wars running without
interruption. ;-)
-Clay
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Received on Thu Oct 8 23:18:32 2009
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