FRANCES Woes Are Over (I hope)

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#2302

From: Fred Hamilton
Date: Wed, 22 Nov 1989 08:20

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I don't know if this will help anybody else out there, but I finally got
my FRANCES working again.  The connection between the DRAM controller pin
30 and the FRANCES PAL pin 13 was open.  This was causing FRANCES not to
work with the operating system even though all the RAM testers I tried said
the memory was fine (except RamTest).

Also, I should mention that at least 2 of the PALS I received with my LUCAS
board were flakey.  It used to need about 10 minutes to "warm up" before
it got reasonably stable with ANY 74X74 in U9.  When I replaced PAL U7 with
one I'd burned myself the thermal problem went away.  When FRANCES came
along with a new U7, it worked great also.

The other bad PAL was either U4 or U5.  It was consistently crashing the
machine when I'd drag an object about in a workbench window.  This also
went away when I installed new ones.  My LUCAS board was in the 700th range.
Maybe some other bad PALS got out in that series.
-- 
Fred Hamilton                  Any views, comments, or ideas expressed here
Harris Semiconductor           are entirely my own.  Even good ones.
Santa Clara, CA

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From: hamilton@intersil.uucp (Fred Hamilton)
Newsgroups: comp.sys.amiga.tech
Subject: FRANCES Woes Are Over (I hope)
Message-ID: <276@intersil.uucp>
Date: 22 Nov 89 08:20:56 GMT
Organization: Harris Semiconductor, Santa Clara CA
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