<snip
Weird Yes? The straw that broke the camels back was the non linear
nature of the MAF. I can program the chips as I already have a
Motorola /Freescale programmer and the experience to do it. I'll
sell them for less $5 plus shipping.

You will need four as I would still do the 555 modular concept of
one controller per injector.

Or you can do it Vince if you wish at whatever you feel like charging.

Does the TI chip have A to D and PWM out?

Paul Lamar

Paul -

Yup, non-linear is a bitch to deal with.  Then again, all systems end
up non-linear or complex, which is why uC's are so damn popular.

And Paul, yes, the TI MSP430 has A/D and PWM out.  And D/A.  And
Timers.  And I2C.  And SPI.  And so on.  16 Registers.  16MHz 16 bit
RISC.  And remember ... such low power requirements that it runs on
fruit.  :)

I totally get you sticking with Motorola since you've already invested
in 1) the learning curve and 2) the programmer & development kit.  I'd
do the same thing if I were you.

For everyone else who's just getting started, go with the MSP430 -
it's $20 cheap to get started, great to learn on, and even better to
design with.
http://www.ti.com/corp/docs/landing/mcu/index.htm?DCMP=MSP430&HQS=Tools+OT+ez430
http://focus.ti.com/docs/toolsw/folders/print/ez430-f2013.html

Regarding me doing the MAF/uC Injection Controller - nope.  Not yet.

I will do this group the favor of NOT taking on a third project until
I complete the first - the Returnless PWM Fuel Pump Controller.  I am
still searching for mass-produced automotive fuel pressure sensors.

My second project will be a Flywheel CAS Sensor where I test the NXP
KMI15/4 rotational speed sensor.
http://www.nxp.com/acrobat_download/datasheets/KMI15_4_4.pdf

I'll stick to one project at a time.

-Vince Orton