Interrupt not working about megacore HOT 10 CLOSED

Thanks for reporting the issue, and actually validating your circuit with an oscilloscope. I'm on vacation right now, but I'll have a look at it next week 🌞

from megacore.

While you're at it, could you please test your code without using the digitalPinToInterrupt macro, but rather insert the real interrupt number? You can find the corresponding interrupt number in the pinout pic in the Readme file. I'm also interested in knowing if the rest of the interrupts work as expected

from megacore.

Gave removing digitalPinToInterrupt a try and it was no different. It's connected to pin 4 which corresponds to interrupt 4 and given the macro should end up the exact same value if I'm reading it correctly. I also tried swapping around some of the other settings than LOW like RISING and FALLING and none of those changed the behavior. I can try cutting the trace and soldering it to a different pin to try out some of the other interrupts but I don't have an easy way to test all of them as this is on a custom PCB and not a demo board.

from megacore.

You don't have to cut traces if you don't have to, I have a dev board I can test on. One thing, could your try to add sei(); at the very end of the setup function? This enables global interrupts, so nothing will happend if this is not ran (which it should be by default).

I haven't seen your entire code, but I assure you're stripped away everything to isolate this issue as much as possible?

from megacore.

I tried adding sei() at the end of setup and saw no change. Here is the isolated code that I've tested against. I've also removed the debounce logic as well with no effect. Here is the schematic of the button that should be triggering the interrupt. Trigger is just directly connected to digital I/O pin 4 (PE4).

#define TRIGGER_PIN 4
#define RED_TEAM_PIN 6

volatile boolean shouldFire = false;
const int debounceDelay = 1000;
volatile long lastDebounceTime = 0;

void setup() {
  pinMode(RED_TEAM_PIN, OUTPUT);
  pinMode(TRIGGER_PIN, INPUT);
  digitalWrite(RED_TEAM_PIN, HIGH);
  attachInterrupt(digitalPinToInterrupt(TRIGGER_PIN), triggerPress, LOW);
}

void loop() {
  if (shouldFire == true) {
    shoot();
    shouldFire = false;
  }
}

void triggerPress() {
  long now = millis();
  if ((now - lastDebounceTime) > debounceDelay) {
    shouldFire = true;
    lastDebounceTime = now;
  }
}

void shoot() {
  digitalWrite(RED_TEAM_PIN, LOW);
  delay(1000);
  digitalWrite(RED_TEAM_PIN, HIGH);
}

from megacore.

I found the issue. Turned out that these lines didn't match the current pinout.

from megacore.

Thanks! In fixing one issue on the board I was testing this on I broke something else. Still able to program the mcu but it doesn't look like it's actually executing anything. Gonna try swapping for a new one and I can give this a shot.

from megacore.

Stupid late-night coding! All interrupts are working except for INT4. Try using the avr-100-pin fork, which has this issue resolved. I'll merge this branch into the master as soon as it's a little more well tested

from megacore.

Gave this a try and it's working now. Thanks!

from megacore.

Great! Thanks for reporting 😃

from megacore.