cho0h5 · September 18, 2022 08:58
diff --git a/timer.ino b/timer.ino
 void setup() {
  pinMode(13, OUTPUT);

  OCR0A = 0xF9; // 249
  TCCR0B = (1 << WGM01) | (1 << CS01);  // CTC, prescale
  TIMSK0 = (1 << OCIE1A); // interrupt
 }

 void loop() {
 }

 ISR(TIMER0_COMPA_vect) {  // 8000hz
  digitalWrite(13, digitalRead(13) ^ 1);
 }
	void setup() {
	pinMode(13, OUTPUT);

	OCR0A = 0xF9; // 249
	TCCR0B = (1 << WGM01) \| (1 << CS01); // CTC, prescale
	TIMSK0 = (1 << OCIE1A); // interrupt
	}

	void loop() {
	}

	ISR(TIMER0_COMPA_vect) { // 8000hz
	digitalWrite(13, digitalRead(13) ^ 1);
	}