External interrupt on atmega AVR Answered
I've been learning to program an AVR (atmega644p) in assembly, but I cannot get it to respond to any interrupts. I am trying to use the external interrupt INT2 on portb,2, but the program does not respond to a signal on the pin either as an input or output.
I have verified all the ports work, and have added LEDs to indicate that the program has reached the wait loop. I have looked at several code examples, and there doesn't appear to be anything missing.
At the moment, I think that the issue may be with the fuses dealing with the boot sector. Fuses are currently set to Low:0xFD, High:0xDF, Extended:0xFF.
Thanks in advance for any suggestions as to what the problem might be.