[Diy_efi] new EFI controller

[Bevan Weiss]

Depends on lots of things, remember that there's much more computing to a
car than just the engine.
ie one of the 32bit processors might be the engine, the other one might take
care of such things as the indicators, the door light, windsheild wipers,
central locking, etc.
Or it might be just dedicated to traction control (ie abs), or it may be
used in 4WS (4 wheel steering).  Then again it might be used to adjust the
drivers seat via electronics :)
Ya just never really know what they're using for what application.

The important thing for us to pick up is, Motorola has designed the
MPC555/565/566 as automotive engine control devices.  This means that
there's no fussing around trying to get something simple like an engine
position reference.  It's a simple two instruction kinda thing (damn I love
the TPU :) )
Just think about how hard that would be to code using a TriCore chip or
such.
All the onchip FLASH and RAM are added bonuses, no 'need' for an external
bus interface.  (However I think I'll still put one on the board).
It's just a great little chip family.

Thanks for the comments,
Bevan Weiss


----- Original Message -----
From: "Toyota Supra" <turbosupramk3 at hotmail.com>
To: <diy_efi at diy-efi.org>
Sent: Tuesday, March 11, 2003 4:49 PM
Subject: Re: [Diy_efi] new EFI controller


> i know that the supra ecu uses (2) 32 bit processors, i was told that it
was
> an extremely supreme design for its time, i guess this reiterates such.
> its good to know that other ecu's are catching up
>
> -j
>
>
>
>
>
> >From: "Bevan Weiss" <kaizen__ at hotmail.com>
> >Reply-To: List for general do-it-yourself EFI talk <diy_efi at diy-efi.org>
> >To: "List for general do-it-yourself EFI talk" <diy_efi at diy-efi.org>
> >Subject: Re: [Diy_efi] new EFI controller
> >Date: Tue, 11 Mar 2003 14:24:05 +1300
> >
> > > At 4:48 PM 3/10/03, Toyota Supra wrote:
> > > >stand alones are a pain in the ass, and its some people choice to
avoid
> > > >such, especially on a daily driver, other people like it, some don't.
> > > >
> > > >what is the bit processing power of the 565/566 processor? from a
quick
> > > >google search, i have found it to be 16 bit, is that correct?
> > >
> > > Hardly. It's at least a 32 bit, if not a 64. Power PC, RISC type.
> > >
> > > Dwarfs anything oem.
> >
> >Don't go too far overboard, it's a 32bit processor, running at 40MHz (or
> >56MHz).  It uses the PowerPC type architecture, and includes a floating
> >point unit (from what I recall :s )
> >
> >It does however dwarf the old model OEM ECU's.  It's being touted by
> >Motorola as the new device to use for ECU's however :)  So OEM's will be
> >designing with them as well :) just not to the same level of integration.
> >
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