Rockbox mail archive
Subject: Re: DRAM 2MB -> DRAM 8MB
From: George Styles (george_at_ripnet.co.uk)
You are a nutter :)
(meant in a joking friendly way... we need no more flames/argueing on the
----- Original Message -----
From: "Matthias Wächter" <matthias_at_waechter.wiz.at>
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
> 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."
Page was last modified "Jan 10 2012" The Rockbox Crew