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Subject: Re: DRAM 2MB -> DRAM 8MB


From: George Styles <>
Date: Mon, 16 Sep 2002 15:37:45 +0100

You are a nutter :)

(meant in a joking friendly way... we need no more flames/argueing on the

good work


----- Original Message -----
From: "Matthias Wächter" <>
To: <>
Sent: Monday, September 16, 2002 3:15 PM
Subject: DRAM 2MB -> DRAM 8MB

> Hi folks,
> Did some soldering today in my company. A lot of work (about 2.5 hours)
> for the unmounting and mounting of the DRAM chip and additional work for
> the patching of some wires. At least no patches (cutting) on the board
> were necessary, just 12 additional wires and bending of two pins of the
> new DRAM chip. Additionally, I found out there is a documentation mistake
> in the AJB schematics about the connection of the address bus: DRAM's A0
> is connected to SH1/FLASH's/etc A1 and so on - of course, we have 16-bit
> addressing at the DRAM so it has to ignore A0. And some additional
> mistakes about A0-A2 connected to the 573, but that's a minor issue.
> Put it all together again and - it works! At least using 2MB, no patched
> firmware available yet supporting 8MB, I will play with this tonight.
> Sorry, no pictures available yet (but expect some ugly soldering on the
> pics ...) :-)
> I keep you on track about the firmware patch and (hopefully) the success
> story.
> Sehr Wus,
> - Matthias
> --
> "To get control over people, make them trust you.
> To make people trust you
> don't try to tell them the truth about history
> but make happen what you told them about the future."
Received on 2002-09-16

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