AC Delco ECU

[William Boulton]

Hi,

Can any one help me with info about the 8bit AC-Delco ECU. I think it
should make a good base unit for adapting to a large number of
applications just as GM does or did. This unit is going to become
available in larger quantities as time passes and the base unit is quite
cheap even as a new unit. I don't have a lot of resources but enough if I
can get some basic information.

I'm told that it is based on a Motoralla 68HC11?? controller. Is this
correct? Has any one got a memory map of the system and/or a good
description of the connection interface? As a matter of fact, I would be
interested in anything that amounts to more than is in the GM workshop
manuals. From the way the unit can be reconfigured for such a variety of
applications, I am lead to believe that the "entire" program is in the
mem-cal or is there some basic boot code embedded in the controller chip?
Has anyone ever done a full disassembly of one of the mem-cal units?

I would appreciate ANY information or referals that anyone may be able to
provide.

TAL

Bill Boulton <william at premier.apana.org.au>