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Date:         Sun, 16 Sep 2007 23:27:20 +0200
Reply-To:     tinker man <tinkerman007@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         tinker man <tinkerman007@GMAIL.COM>
Subject:      Re: ECU firmware location
Comments: To: pdooley <psdooley@verizon.net>
In-Reply-To:  <46ebed49.2035640a.5793.1fc2SMTPIN_ADDED@mx.google.com>
Content-Type: text/plain; charset=ISO-8859-1

You got me wrong... I wasn't planning to re-invent the wheel (i.e. design and build my own ISCU), just fix those darn (original) ECU and ISCU...

On 9/15/07, pdooley <psdooley@verizon.net> wrote: > Sudhir, I was thinking the same thing. > The amount of brainwork going into this project is more than just changing > to MS. > However, if these talented individuals can design and build their own ISCU > to interface with the stock ECU, well that would be good for the entire > Vanagon community. > > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of > Sudhir Desai > Sent: Saturday, September 15, 2007 9:32 AM > To: vanagon@GERRY.VANAGON.COM > Subject: Re: ECU firmware location > > You could always install a Megasquirt, and not have to worry about any > of this. :D > > Sudhir > > On 9/15/07, tinker man <tinkerman007@gmail.com> wrote: > > Hi all, > > > > This is kinda getting in-depth into embedded systems design, but does > > anybody know if the firmware for our ECU's (Digifant or Digijet) > > resides completely on the 2732 EPROM or is part of it contained also > > INSIDE the microcontroller itself? > > The reason I'm asking this is because I suspect I have a fried > > microcontroller (Intel 8049H) but if it's a custom version with > > protected firmware inside, replacing it won't solve the problem. My > > CPU reads: > > MAF 8049H P A167 > > 078801 > > DSD8905V5 U > > WBX82HSCH > > (C) INTEL 1977 > > > > That WBX82HSCH stuff seems to hint it's a custom version > > (WBX=WaterBoxer) with protected firmware, with some of the firmware > > also outside in the external EPROM. > > Any guru's out there? > > > > Cheers, > > TM > > >


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