Fast PWM Pulsweitenmodulation

fast-pwm-01.c

/* fast_pwm_01.c ATmega88 @ 8MHz */
#include <avr/io.h>
 
int main(void)
{
    DDRB |= (1<<PB1);                                     // OC1A = output
    OCR1A = 307;                                            // Compare match bei 307 = 30% Duty Cycle
    TCCR1A = (1 << COM1A1) + (1 << WGM11) + (1 << WGM10); // Lösche OC1A @ Compare Match
    TCCR1B = (1 << WGM12) + (1 << CS11);                    // Mode 7, Fast PWM 10-bit, Prescaler = 8
     
    while(1)
    {
        asm ("NOP");                                        // Nichts tun
    }
}