ATmega88 @ 1MHz Pulsweitenmodulation 1kHz 02

pwm-02.c

/* pwm_1khz_02.c ATmega88 @ 1MHz */
#include <avr/io.h>
 
int main(void)
{
    DDRB |= (1<<PB1); // OC1A = output
    ICR1 = 1000;        // Top Value = 1000
    OCR1A = 700;        // Compare Match bei 700
     
    // Clear OC1A on Compare Match
    TCCR1A = (1 << COM1A1) + (1 << WGM11);
     
    // Mode 14, Fast PWM, OCR1A = TOP, Prescaler = 8
    TCCR1B = (1 << WGM13) + (1 << WGM12) + (1 << CS11);
     
    while(1)
    {
        asm ("NOP");    // Nichts tun
    }
}