[Diy_efi] Data Logger CPU schematic and C for review

[Steven P. Donegan]

Given the 'front end' processing the data logger part will be able to do
I expect the ARM will be snoozing even if it does the DSP'ish work of
analyzing ION sensor inputs :-)

And I believe the 60k RPM is about 4x any expected usage - being an
Engineer I LOVE massive overkill :-)

On Sat, 2007-02-03 at 21:27 +0000, Ian Molton wrote:
> 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!
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