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void pwm_adj(uint8_t,uint8_t);
void setup(){
// WGM02/WGM01/WGM00 all set -> Mode 7, fast PWM
TCCR0A = (1<<COM0B1) + (1<<WGM01) + (1<<WGM00); // Set OC2B at bottom, clear OC2B at compare match
TCCR0B = (1<<CS00) + (1<<WGM02); // prescaler = 1;
OCR0A = 255;
OCR0B = 0;
TCCR2A = (1<<COM2B1) + (1<<WGM21) + (1<<WGM20); // Set OC2B at bottom, clear OC2B at compare match
TCCR2B = (1<<CS20) + (1<<WGM22); // prescaler = 1;
OCR2A = 255;
OCR2B = 0;
DDRD |= (1<<PD3);
DDRD |= (1<<PD5);
}
void loop() {
for(uint8_t i=0;i<255;i++){
pwm_adj(i,255-i);
delay(250);
}
for(uint8_t i=0;i<255;i++){
pwm_adj(255-i,i);
delay(250);
}
}
void pwm_adj(uint8_t duty0,uint8_t duty2){
OCR0B = duty0;
OCR2B = duty2;
}
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