VW Digifant ECU

[Jim Conforti]

On Thu, 29 Dec 1994, Peter Orban wrote:

> The architecture is a dual processor one: An intel 8039 for the fuel
> control, that chip has its code in a 2764 EPROM, and has a TI ADC 0809
> attached to it. The other processor is a Motorola 6805 variant for the
> ignition control. The processor itself is marked SC 80984, and is EPROM
> programmable. Has anyone heard about this particular chip?
> Any information and discussion on the above would be much appreciated!

  Peter .. not to speak for the group, but if you can get us access to:

  1) the 8039 specs

  2) The binary image of that 2764 EPROM ..

  We might be able to do you some good ..

  My partner and I have gotten a REAL good knowledge of the BOSCH Motronic
  systems, and I'm sure we'd be willing to tackle the Digifant .. especially
  if someone has an 8039 disassembler ;)

  (The latest Motronic was also dual proc. and Rod had to WRITE a bloody
   disassembler for one of the processors .. he's a serious hacker!)

  Jim Conforti
  <jec at us.dynix.com>