<x-html><!x-stuff-for-pete base="" src="" id="0" charset=""><!doctype html public "-//W3C//DTD W3 HTML//EN">
<html><head><style type="text/css"><!--
blockquote, dl, ul, ol, li { padding-top: 0 ; padding-bottom: 0 }
--></style><title>Re: [Techtoolslist] RAM tester
project</title></head><body>
<div>I have the the schematics and PAL code for StarTek's DRAM tester
on the FTP site - it is for Dynamic RAM, but it won't handle early
ones used on Space Invaders (I don't think). Still it could be used to
handle larger/smaller sized DRAM with some wiring...</div>
<div><br></div>
<div><font face="Lucida Grande" size="+1"
color="#000000"
><ftp://ftp.flippers.com/TTL/Test%20Equipment/StarTek%20DRAM%20tes<span
></span>ter%20DT-90/</font>></div>
<div><br></div>
<div>John :-#)#</div>
<div><br></div>
<div>At 2:05 PM -0600 2/17/05, joemagiera wrote:</div>
<blockquote type="cite" cite>Those that know me will think I'm in way
over my head on this. I might<br>
agree with them, but I'd like to try. Since I can't find
anything on the<br>
'net, I'm toying with the idea of building a RAM tester.
Specifically, I'd<br>
like to start with a 4116 tester. Heck I figure if I can get
that to work,<br>
it should be a snap to test other types of RAM. I recall someone
on this<br>
list from South America (Brazil?) was attempting the same project but
sadly<br>
we never heard from him again.<br>
<br>
I admit up front, I have no background in this type of stuff, but I do
have<br>
a willingness to try.<br>
<br>
My long range general idea so far is to have a fairly large breadboard
with<br>
25 ZIF sockets on it. From there, wire the appropriate voltage
pins to a<br>
common point so I can supply power via a switching power supply.
That in<br>
itself is probably enough of a challenge for me, but assuming I can do
that<br>
(and that's a pretty big assumption), then what? I'd like to
have it<br>
interface with a PC to run a program to test the RAMs at various
speeds. I<br>
know pretty vague, but that's where I'm looking for your input.<br>
<br>
Thoughts? Ideas? Advice? Any comments appreciated.
Thanks,<br>
<br>
Joe<br>
joemagiera@ameritech.net<br>
<br>
_______________________________________________<br>
Techtoolslist mailing list<br>
Techtoolslist@flippers.com<br>
http://seven.pairlist.net/mailman/listinfo/techtoolslist</blockquote>
<div><br></div>
<div><br></div>
<x-sigsep><pre>--
</pre></x-sigsep>
<div>John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T
3C9<br>
Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)<br>
<span
></span> www.flippers.com<br>
"Old pinballers never die, they just flip out"</div>
</body>
</html>
</x-html>
_______________________________________________
Techtoolslist mailing list
Techtoolslist@flippers.com
http://seven.pairlist.net/mailman/listinfo/techtoolslist
Received on Fri Feb 18 13:52:03 2005
This archive was generated by hypermail 2.1.8 : Mon Sep 12 2005 - 19:58:49 EDT