Gday Mel
Thks for the reply.
I am running a system off a battery so am looking at all ways to reduce the power. And avoid external circuits that draw power.
I understood the interrupt concept so was going to run my ADC on input pin 0 or 1. Doing this i could reset to analogue, initialise the comparator, then put the chip to sleep. When the analogue comparator interrupt wakes it up, i reset to digital and do my ADCs. ( but this requires two comparators ).
A bandpass type interrupt on a single pin would be a really nice feature.
Re hall effect. Wont work. The chip feeds the PWM to drive the motor, and the chips asleep :-)
Re yr last solution, i am reading a pot supplied via the PIC supply rail, hence its pure DC already. Nothing to rectify.
Andrew
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