[Gmecm] 16212488 ALDL MODE2/MODE3 bin dumping?

[Scott Pearson]

The 94-95 6.5TD's use a removable EPROM, you'll have to remove it to read 
the program file.

1996-2000 used the flash type PCM.

Scott

----- Original Message ----- 
From: "Stefan Engh" <stefan at engh.com>
To: <gmecm at diy-efi.org>
Sent: Saturday, September 15, 2007 3:40 AM
Subject: [Gmecm] 16212488 ALDL MODE2/MODE3 bin dumping?


> Hello everyone,
> This is my first post to the list. I hit myself daily for not having woken 
> up to this EFI stuff at least ten years ago! Playing catch-up is reeking 
> havoc with my beauty sleep ;-)
>
> It all started about two years ago when I bought a 1995 6.5TD Suburban 
> (ECM 16212488) and found out there where no PC scan tools available. I 
> started developing one for myself. It's called GMTDScan and has been out 
> for almost a year now. The last couple of days I've been playing with 
> adding a ALDL MODE2/MODE3 bin dump feature to it. I figured it would be a 
> good way to harvest stock bins from the 1994-95 6.5TD. Here's where I am 
> having problems...
>
> I can only get it to dump addresses $4000-$FFFF. Trying to dump anything 
> above $4000 only returns the value of last byte ($FFFF).
> Could someone please shed some light on why it works that way?
> What type of information is stored in the $0000-$3FFF address range?
>
> /Stefan
>
>
>
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