/* pwm_1khz_01.c ATmega88 @ 1MHz */
#include <avr/io.h>

int main(void)
{
    DDRB |= (1<<PB2); // OC1B = output
    OCR1A = 999;        // Top value = 999
    OCR1B = 300;        // Compare Match bei 300

    // Clear OC1B on Compare Match
    TCCR1A = (1 << COM1B1) + (1 << WGM11) + (1 << WGM10);

    // Mode 15, Fast PWM, OCR1A = TOP, Prescaler = 8
    TCCR1B = (1 << WGM13) + (1 << WGM12) + (1 << CS11);

    while(1)
    {
        asm ("NOP");    // Nichts tun
    }
}