|Re: I'm interested, but...|
Message #12 Posted by Diego Diaz on 21 Apr 2003, 3:30 p.m.,
in response to message #10 by Chris Catotti (Florida)
It seems that the customized EPROM modules issue still have a lot of interest in this forum (easy to understand when looking at e-Bay prices :-)...
Let me see if I've understood the previous message...
- Are there EPROM chips (those UV erasable) that fit into a standar HP-41 module case??
- If the answer is YES, are there any clue about which modules could carry this (almost magic) chip?
- AFAIK, ROM modules are 10bit/word and RAM modules are 8bit/word... Anyhow, some modules share machine-code and user code programs in the same device, Does someone knows how they overcome the word lenght difference?
- Is it possible to place a small Lithium battery inside a, said, Quad-Ram module to turn it into a pseudo ROM?
... Well, I'm abusing I know, but those questions have been prowling into my head for long, since I'm a "harware guy" (those with the soldering iron and tweezers), sometimes messing my brain up, and you seem to be the only good answers source.
Thanks in advance and best whishes from the Canary Islands.
P.S. Please forgive my grammar "crimes".