Re: TI-H: RAM expansion (sort of)
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Re: TI-H: RAM expansion (sort of)
'Something Mel Made'
>What's it called? I'll add it to the list.
>-LC
>
>On Thu, 13 Aug 1998 07:55:45 PDT "Matt Butch" <mjb25@hotmail.com> writes:
>>
>>Has anyone seen the RAM/IO expander on Mel's website, the one with the
>>
>>74LSXXX TTL logic IC's?? Well last night I got the parts need to make
>>
>>it(plus some Z80s!!) and am going to breadboard it tonight(with some
>>modifications). I also have to make the driver software, but that
>>will
>>be easy. I;m going to use 3 32KBx8 Static RAM chips(That's 96KB of
>>RAM,
>>plus the 28K already on the 85!! Whoohoo!!!). Next I'm going to make
>>an
>>(E)EPROM program for it so that I can burn them w/o getting an $150
>>programmer. For those interested, here's the address to the page:
>>http://www.egr.msu.edu/~tsaimelv/download.htm
>>download the zip file exp_old.zip. It has all the info needed.
>>
>>
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