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From: Andy Cuffe on 28 Jan 2010 01:53
On Wed, 20 Jan 2010 05:18:21 -0500, JW <none(a)dev.null> wrote:


>
>
>Hi Andy, there are a couple of hits for LH28F320SKTD-L70 on findchips.com
>http://www.findchips.com
>
>Allegedly 1200+ pcs. at
>http://www.americaii.com/help/help_partsearch.shtml
>
>I don't know whether they have a minimum order, though.

Thanks for the tip. This site looks like promising:

http://www.questcomp.com/
Andy Cuffe

acuffe(a)gmail.com
From: Andy Cuffe on 3 Feb 2010 01:49
Well, the chips arrived, but so far I haven't been able to get it to
use the added flash memory. There are 4 jumper resistors on the SIMM,
which I assume identify the type of SIMM. I've tried every
combination, and the best I can get it to do is boot, but not see the
extra 8 MB. The firmware upgrade boot floppy either reports an error
accessing drive C: (the flash memory), or it reports that it's not big
enough (the upgrade requires the additional flash memory).

My guess is that it needs be partitioned, or formatted, and that the
real 12MB SIMM comes pre-formatted. Is there a way to partition the
flash memory (like in a service menu)?
Andy Cuffe

acuffe(a)gmail.com
From: Andy Cuffe on 4 Feb 2010 12:41
On Wed, 03 Feb 2010 00:49:27 -0600, Andy Cuffe <acuffe(a)gmail.com>
wrote:

>Well, the chips arrived, but so far I haven't been able to get it to
>use the added flash memory. There are 4 jumper resistors on the SIMM,
>which I assume identify the type of SIMM. I've tried every
>combination, and the best I can get it to do is boot, but not see the
>extra 8 MB. The firmware upgrade boot floppy either reports an error
>accessing drive C: (the flash memory), or it reports that it's not big
>enough (the upgrade requires the additional flash memory).
>
>My guess is that it needs be partitioned, or formatted, and that the
>real 12MB SIMM comes pre-formatted. Is there a way to partition the
>flash memory (like in a service menu)?
>Andy Cuffe
>
>acuffe(a)gmail.com


Well, I have confirmed that the problem is due to formatting, or
partitioning of the blank flash chips. I swapped the original chip
with one of the new ones so that the first chip on the SIMM was blank.
After that, it reported that it couldn't install the firmware because
there wasn't enough space available on drive C:.

It's not going to work unless I can find a way to format the flash
memory. I've been playing with the key combination that does a secure
erase of the flash memory, including the firmware, but so far no luck.
Andy Cuffe

acuffe(a)gmail.com
From: Andy Cuffe on 4 Feb 2010 18:46
I'm happy to report success.

I restored the flash chips to their original locations, and confirmed
that everything was working as before. Then I ran the flash erase
with several of the other jumper configurations. After finding the
correct jumper configuration, it allowed me to install the latest
firmware, and everything appears to me working well.

If anyone else wants to try this, you need to have both the jumpers
closest to the SIMM's edge connector open, and the other two shorted.
You will have to run the secure flash erase to reformat the SIMM (hold
"view/trace", "ESC", and "return" while turning on the analyzer. The
screen will be blank, but you can tell it's working by checking for
the Vpp voltage of one of the chips. Give it about 10 minutes, and
then pull the plug to turn it off. After erasing the flash, it won't
work until you install the firmware.
Andy Cuffe

acuffe(a)gmail.com
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