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cho0h5/timer.ino

Last active September 18, 2022 08:58
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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);
}
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