#include<avr/io.h>
#include<util/delay.h>

#define F_CPU 16000000UL


void Timer_init()
{
    // Set Timer0 to Normal Mode (WGM02:0 = 0)
TCCR0A=0X00;
TCCR0B=0X00:

  // Set prescaler to 1024 (CS02=1, CS01=0, CS00=1)
    TCCR0B |= (1 << CS02) | (1 << CS00);

        // Calculate initial value for a 10ms delay (example)
    // F_timer = 16MHz / 1024 = 15625 Hz
    // T_tick = 1 / 15625 Hz = 64 us
    // Ticks_needed = 10ms / 64us = 156.25 -> approx 156 ticks
    // TCNT0_initial = 256 - 156 = 100
    TCNT0 = 100; // Load the initial value

    
    // Enable Timer0 Overflow Interrupt (optional)
    TIMSK0 |= (1 << TOIE0); 
    sei(); // Enable global interrupts
}
    ISR(TIMER0_OVF_vect)
     {
          PORTB|=(1<<PB5);
 _delay_ms(1000);
  PORTB&=~(1<<PB5);
  _delay_ms(1000);
    // Reload TCNT0 for continuous timing (if needed)
    TCNT0 = 100; 
 PORTB|=(1<<PB5);
    // Your code to execute on timer overflow
}



int main()
{
Timer_init();
  PORTB|=(1<<PB5);
 _delay_ms(1000);
  PORTB&=~(1<<PB5);
  _delay_ms(1000);
Timer_init();
  DDRB|=(1<<PB5);
PORTB&=~(1<<PB5);
while(1);


  return 0;
}