The Museum of HP Calculators
HP Forum Archive 14
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|Eprombox Eramco conversion|
Message #1 Posted by Ronald on 19 Aug 2004, 5:51 p.m.
I have a couple of Eramco EPROM boxes (1 metal, only Eprom) and 2 plastic boxed with also 8K of RAM in it). I like to change one so it can have the service module working. I thnik this one needs to be at page 4. The Eprom boxes however have a switch which starts mapping only on page 8 and higher. Any idea how to change this ?
|Re: Eprombox Eramco conversion|
Message #2 Posted by Meindert Kuipers on 25 Aug 2004, 8:55 a.m.,
in response to message #1 by Ronald
If I recall correctly the RAMs may be mapped to any address, but I am not entirely certain. Having the EPROM respond to a lower address may be possible, but I would need to look into the schematics, which I do not have. I you have any, please mail them to me (you have my address I think) and I will check it.
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