pwm do sterowania wentylatorem

soft/main.c

@@ -202,10 +202,22 @@ void main(void){
 	
 	eeprom_read_block(&settings, &eep_settings, sizeof(struct settings));
 	
+	
+	// system timer
 	OCR2A = (125-1); // 1ms
 	TCCR2A = _BV(WGM21);
 	TCCR2B = _BV(CS22);
 	TIMSK2 = _BV(OCIE2A);
+	
+	
+	// fan pwm timer
+	ICR1 = (330-1); // 25kHz
+	OCR1B = 40;
+	TCCR1A = _BV(COM1B1) | _BV(WGM11);
+	TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10);
+	TCCR1C = 0;
+	DDRD |= _BV(PD4);
+	
 	sei();
 
 	PORTC &= _BV(PC7);	// KEY