#define F_CPU 8000000
#include <avr/io.h>

int main(void)
{
  //Table 11-3 Compare Output Mode, Fast PWM mode
  //Table 11-5 Waveform Generation Mode Bit Description
  //COM0A0 - non-inverting
  TCCR0A |= (0<<WGM02)|(1<<WGM01)|(1<<WGM00)|(1<<COM0A1);
  //Table 11-6 Clock Select Bit Description
  TCCR0B |= (0<<CS02)|(0<<CS01)|(1<<CS00); //pre-scale factor = 1

  OCR0A=128; // 128/256 = 0.5 duty cycle

  //make PWM pin output
  DDRB |= (1<<DDB0);

  while(1){}

  return 0;
}