AVR-Chat

PWM is a hardware function.  interrupts shouldn't bother the PWM generator.
However, you can not share PWM output with INT input, of course...

Depending upon your encoders & the tick rate you might be better off polling
than using interrupts.  It just depends.


-----Original Message-----
From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com]On
Behalf Of wbounce
Sent: Friday, May 06, 2005 8:01 PM
To: AVR-Chat@yahoogroups.com
Subject: [AVR-Chat] Which pin to us for interupt?


I am working on adding 2 wheel encoders to my robot. I am thinking of
using either PORTE5, PORTE6 or PORTE7 but I am wondering if this will
conflict with my PWM which I have on PORTE3 and PORTE4 (PWM output A and
B of timer3)

PORTE5 - External interupt 5 input or output compare and PWM output
compare C for timer counter 3
PORTE6 - External interupt 6 input or timer counter 3 clock input
PORTE7 - External interrupt 7 input or timer counter 3 clock input
capture trigger

If I use these will they cause problems with my PWM?




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