Old 486 Board for ECU??

[Diehl, Jeffrey]

Hey, I didn't understand you were only concerned with testing.  For testing
purposes, I think you are right on.  One more thing, tho.  I have a
motherboard at home which will not boot without a keyboard.  I have another
one which will.  We need to be carefull about that.  Both are 486's.

Mike Diehl,
MR-2, '87na

-----Original Message-----
From: Axel Rietschin [mailto:Axel_Rietschin at compuserve.com]
Sent: May 01, 2000 9:20 AM
To: diy_efi at diy-efi.org
Subject: Re: Old 486 Board for ECU??



----- Original Message -----
From: "Diehl, Jeffrey" <jdiehl at sandia.gov>
To: <diy_efi at diy-efi.org>
Sent: Monday, May 01, 2000 16:35
Subject: RE: Old 486 Board for ECU??
>
> I've got a few comments on this.
>
> The PC powersupply supplies 5 and 12 volts.  If you were to run the PC in
a
> car application, you would only have to use a 12 and 5 volt regulator, not
> an inverter.  And I believe that the 12 volt supply is only used by the
> floppy/hard drives.

I was suggesting to use a 12-to-110 converter and simply plug a standard
110V PC power supply into it. That would do for initial testing.

>
> I wonder how quickly your car will "boot up" if it has to boot from
> floppy...  This is a (minor?) concern.

Good point. Again, this would be OK for testing. Afterward, in case it works
:) you can always use a flash-based device on an extension board.

>
> I don't happen to believe that a Java ECU program would be fast enough to
> control any engine function.   Maybe it would be able to controll the
> headlights...  ;^)

:D


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