Na začiatku si musíme určiť rýchlosť uC : #define F_CPU 1000000 //1MHz
Potom si zahrnieme štandardne i/o AVR uC : #include <avr/io.h>
A vydeklarujem si nejaké premenné ,ktoré budeme používať :
#define OutputCompareRegister1 OCR1A
#define OutputCompareRegister2 OCR1B

#define PWMDDR DDRB

#define PWMpin1 PB1
#define PWMpin2 PB2

Vytvoríme si funkciu na inicializáciu PWM :
void init16bitPWM() //this function works for ATMega8 but needs to be configured for other AVR uCs (configure the registers and the bits)
{
    PWMDDR |= 1<<PWMpin1;
    PWMDDR |= 1<<PWMpin2;


    TCCR1A |= 1<<WGM11 | 1<<COM1A1 | 1<<COM1B1;
    TCCR1B |= 1<<WGM12 | 1<<WGM13 | 1<<CS10;

    ICR1 = 65535;

    OutputCompareRegister1 = 0;
    OutputCompareRegister2 = 0;
}