[avr-gcc-list] external interrupt use

[Jamie Morken]

Hi all,

I have 6 digital signals that I need to be able to trigger an interrupt on
the falling edge and rising edge for all of them, but I am short 2 external
interrupts.  Is there a simple way to detect the 6 signals rising/falling
edges with 4 interrupts and some additional circuitry?  I have thought about
using diodes to AND some of the signals but this only works for positive
edges I think.

cheers,
Jamie Morken



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