28 Aug
2007
28 Aug
'07
1:41 p.m.
On 8/5/07, Brad Parker <brad at heeltoe.com> wrote:
It was wonderful. I did a few different boot proms
with one. Very handy.
It was made by (I think) Grammer Engine. Try www.promice.com. But
gosh, they do seem more expensive now that I remember...
Ah, but it's so much fun to build your own:
http://piclist.com/images/boards/EPROMemuMk2/index.htm
(the photos aren't particularly flattering - I've since redone the front panel
so it looks fairly presentable)
It'll do any 27xx chip from 2764 through 27512, and smaller chips with a
passive adapter. I built it to go with my 6502 computer board, and for rapid
firmware testing and debugging it's a great tool. It's also good for Gameboy
cartridge code development :)
The source code is a bit of a mess, and the uploader is Windows-specific, but
it works quite nicely. Rewriting the uploader isn't a big job either, just
that it works well enough for me and I see no reason to embark on a mass rewrite.
And I never did get around to making master/slave mode work either...
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