Within an interupt, I want to count pulses coming in on portB, basically to
measure frequency.  The ISR is already being called by TMR0 so every 255
clock cycles when it rolls over, its executed.  Can I have both interupts
going at the same time, so every time B0 gets a pulse, it drops in and
increments a counter and returns.  Then when the normal interupt is called,
it checks the count value.

Will this work ok? Any examples that someone has already coded?



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