Timers in ATmega16, regsiter settings example codevision

Timers in ATmega16, regsiter settings example codevision

//Timer 0 overflow interrupt service routine
interrupt [TIM0_OVF] void timer0_ovf_isr(void)
{
    PORTA.6=0;          //STOP SIGNAL1
}

//Timer 0 overflow interrupt service routine
interrupt [TIM1_OVF] void timer1_ovf_isr(void)
{
    PORTA.7=1;          //START SIGNAL2
    TCCR2=0x01;         //START TIMER2
    TCCR1B=0x00;        //STOP TIMER1
}

//Timer 2 overflow interrupt service routine
interrupt [TIM2_OVF] void timer2_ovf_isr(void)                       
{     
    PORTA.7=0;           //STOP SIGNAL2
}

===============================================
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: 8000.000 kHz
// Mode: Normal top=FFh
// OC0 output: Disconnected
TCCR0=0x00;
TCNT0=0xD7;
OCR0=0x00;

// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer 1 Stopped
// Mode: Normal top=FFFFh
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer 1 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off

TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=255 ;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;

// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: 8000.000 kHz
// Mode: Normal top=FFh
// OC2 output: Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0xD7;
OCR2=0x00;

=======================================

// Timer(s)
TIMSK=0x45;        //01000101   ALL TIMRE INTRIUPTS ARE ENANBLED



// Global enable interrupts
#asm("sei")

=============================
   TCCR0=0x00;                   //NO CLOCK FOR TIMER0
       TCCR1B=0x00;                  //NO CLOCK FOR TIMER1
       TCCR2=0x00;                   //NO CLOCK FOR TIMER2