I'm writing a C program for ATmega64A which has a INT0 ISR. This ISR should be executed in case of INT0 falling edge OR if the TIMER3 goes overflow.
To avoid doubling the code I'd like to trigger Int0 ISR in the Timer 3 overflow ISR.
Unfortunately there is no such information in the datasheet. At least in the INTF register description section:
Does anyone tries this? Or maybe someone knows this in theory?