On the LPC2114, multiple pins can be assigned to a single
capture port. For instance, capture channel 0 of timer0
can be triggered by P0.2, P0.22 or P0.30.
According to the manual, these triggers should work in
parallel, so a capture interrupt will be triggered from
any of them. But I can't get that to work. I only
get interrupts from the lowest enabled trigger. So
if I enable P0.30 as a capture trigger it works fine.
But when I enable P0.2, then I no longer get interrupts
when there is a trigger on P0.30.
Has anyone else seen similar behavior?
-bobMessage
Using multiple capture pins
2004-05-06 by bobbruce000