Mega8-Interrupt Output Compare "zu schnell"

#include <avr/io.h>

#include <avr/interrupt.h>

#include <inttypes.h>

#define LED_DIR     DDRB

uint32_t i;

ISR(TIMER2_COMP_vect)

{

  i++;

  if (i==11059)

  {

    i=0;

    PORTB ^= ( 1 << PB0 );

  }

}

int main( void )

{

  DDRB = 0xFF;

  TCCR2 = (1<<WGM21)|(0<<WGM20);          // CTC Modus

  TCCR2 |= (0<<CS22)|(0<<CS21)|(1<<CS20); // Prescaler 8,    bleiben 11059000/8=1382375 Hz

  TCCR2 |= (0<<COM21)|(0<<COM20);         // Ports normale Funktion

  OCR2 = 125-1;                           // bleiben 1382375/125=11059 Hz

  TIMSK |= (1<<OCIE2);

  sei();

  for(;;){  }

}