Old 486 Board for ECU??

[Peter D. Hipson]

I'd say yes. PC's are used for industrial controllers as well. Remember, a
typical CPU has the power of one of the original IBM PC (4.77 MHz), and a
newer Pentium is about a hundred times faster! As well, DOS doesn't have
the problem with interrupts as you can 'hog' the whole CPU. BTW, I doubt
that an ECM could do one microsecond timing... That's a millionth of a
second, very fast. Not much happens in an engine in that kind of time
period... <g>

------------------------------

Date: Sun, 30 Apr 2000 15:34:41 -0800
From: Ludis Langens <ludis at cruzers.com>
Subject: Re: Old 486 Board for ECU??

"Peter D. Hipson" wrote:
>> 
>> Par ports are fast--much faster than the typical ECU of today. Memory...
>> Let's see, Windows 2000, 128 MB Ram, and a 10 Gig drive. Of course a flat
>> screen LCD display, and a minature keyboard would make a reasonable setup.
>
>The I/O speed isn't the problem.  The issue is: can you generate an
>output signal with one microsecond accuracy relative to an input signal?
> How about two outputs that might change at once?  Three?
>
>- -- 
>Ludis Langens                               ludis (at) cruzers (dot) com
>Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/

Thanks, 
        Peter Hipson (founder, NEHOG)
        1995 White NA Hummer Wagon
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