Mike wrote..

> can pwm code on a 16c84 be written to do it in the background?  i mean if i wa
nna set my servo to run forward and my code to continue on its cheking of sensor
 inputs while that servo runs forward is >
> i would think so but im not sure, im used to my first love, 68hc11 :)
>

I haven't done this myself yet but I can't see why  a PWM of lowish
freq and not too high a resolution couldn't be run from the timer
overflow interrupt.
This really really depends on what else is going on and as I just
said what the specs for you're PWM are.
I have always used a PIC with a PWM port such as 16C74 or 16F877 as
my applications have had the PIC heavily involved with other
activities and I have needed PWM of 10 bits resolution at 20kHz, too
much for software alone to handle.

I recall someone was running multiple servos off one PIC. Check the
archives.

_____________________________

Lance Allen
Technical Officer
Uni of Auckland
Psych Dept
New Zealand

www.psych.auckland.ac.nz

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