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 */
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 */
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void Timebase_Init() {
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void Timebase_Init() {
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#if defined(TIMER2)
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#if defined(TIMER2)
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    #if defined(__AVR_ATmega8__)
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    #if defined(__AVR_ATmega8__)
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    #if TIMEBASE_PRESCALE == 64
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    #if TIMEBASE_PRESCALE == 64
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    TCCR2 = (1<<CS21) | (1<<CS20);  // prescaler: 64
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    TCCR2 = (1<<CS22);  // prescaler: 64
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    #elif TIMEBASE_PRESCALE == 256
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    #elif TIMEBASE_PRESCALE == 256
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    TCCR2 = (1<<CS22);              // prescaler: 256
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    TCCR2 = (1<<CS22) | (1<<CS21); // prescaler: 256
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    #endif
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    #endif
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    TCNT2 = TIMEBASE_RELOAD; // set initial reload-value
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    TCNT2 = TIMEBASE_RELOAD; // set initial reload-value
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    TIFR  |= (1<<TOV2);  // clear overflow int.
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    TIFR  |= (1<<TOV2);  // clear overflow int.
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    TIMSK |= (1<<TOIE2); // enable overflow-interrupt
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    TIMSK |= (1<<TOIE2); // enable overflow-interrupt
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    #endif
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    #endif