CPU and hardware advice sought for EFI

[Tom Sharpe]

I have a PIC programmer and have studied the Motorola HC11 from the gm-ecm. Ford uses
an Intel derivative. I like the HC12 for compatability w/ the HC11 code or maybe the
HC16 - steps between the hc11 and '332.  Tom

David Gravereaux wrote:

> Hi All,
>
> I've been pondering this for a while and just thought I'd give in and just do
> it.  I want a fully managed engine from a single embedded device doing
> everything to run a motor.
>
> Target engine(s):
>         Honda 700cc V4 water-cooled from a VF700S Sabre (development)
>         Volkswagen 2100cc Type-4 opposed 4, air cooled. (final, ~150 hp target)
>
> I have around 5 years experience doing application level C programming in a
> desktop environment -- mainly developer tool and scripting language oriented
> with previous experience in electronic repair and design.  This is my first
> embedded/real-time device.  Sounds a whole lot more fun than silly developer
> tools I do by day ;)
>
> A few weeks ago I was playing around with a Real Time Operating System (RTOS)
> called MicroC/OS-II [ http://www.ucos-ii.com ] from the author's book.  Cool
> stuff, nice book, gosh I hate assembly...  A friend recommended I have a look at
> QNX's Nutrino kernel [ http://www.qnx.com ].  It seems to be gaining acceptance
> in automotive appliances.
>
> Designing is research.  `Search` being the predominant part of the word.  Here's
> what I found for a controller:
>
> http://www.tern.com/586e_data.htm
> http://www.tern.com/p50.htm
> http://www.tern.com/flashcore.htm
>
> SRAM is low, but execution code can run out of a flash card.  P-Mode?  cs:ds
> gives me a headache.  The p50 looks sweet with all that I/O.  I think my
> requirements would be the following:
>
> Inputs:
>         (2) lo-sample-rate ADC, cylinder head temp. 1 each side.
>         (1) lo-sample-rate ADC, oil temp.
>         (1) lo-sample-rate ADC, oil pressure.
>         (2) high-sample-rate ADC, knock sensors, 1 each side.
>         (1) lo-sample-rate ADC, throttle position sensor.
>         (2) lo-sample-rate ADC, manifold absolute pressure, 1 each side.
>         (2) lo-sample-rate ADC, exhaust O2 sensors, 1 each side.
>         (??) crankshaft/camshaft rotational position.
>
> Outputs:
>         (4) lo-side DIO, ignition coil amps for direct fire.
>         (4) lo-side DIO, injector drivers.
>         (2) lo-sample-rate DAC, servos or steppers for the cooling air flaps.
>             (It's a VW engine, remember?)
>         (1) serial I/O to the dash for gauges.
>
> Could people comment on the above and help me fill in the gaps?  I'm rather
> overwhelmed, but having fun trying to spec a complete system from what little I
> can work through.  I'm trying to prototype the FFT routines for the knock
> sensors, now.  Thanks.
> --
> David Gravereaux <davygrvy at pobox.com>
> [species: human; planet: earth,milkyway,alpha sector]
> Please be aware of the 7.5 year ping times when placing a call from alpha centari
>
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