[Diy_efi] Data Logger CPU schematic and C for review

[Ian Molton]

Steven P. Donegan wrote:
> I believe Ian and I are both leaning towards a Philips/NPX LPC2138
> CPU/MCU for the core.

Yup. loads of PWM outputs and ADC inputs (6 and 8 reespectively), I2C, 
2x serial, 512/32K of flash/RAM, and a RTC! core clock 60MHz.

ARM7 cores can run at ~1 cycle per instruction so if the core 
sampling/control stuff took even 1000 cycles per revolution, we'd still 
be good for ~60,000 RPM!