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void sleep(){ int i; for (i=0; i; i++);}

   #define F_CPU 8000000UL  // указываем частоту в герцах
   
   #include <avr/io.h>
   #include <util/delay.h>

int main(void) // начало основной программы
{
   
   TCCR1A = (1<<COM1B1) | (1<<WGM10);
   TCCR1B = (1<<WGM12) | (1<<CS10);
   OCR1B = 50;
   DDRB |= (1<<PB4);
   
}

#include <TINY2313.H>
#include <delay.h>
#define ON_IR  DDRB.3 = 1
#define OFF_IR DDRB.3 = 0
void main(void)
{
PORTB = 0x00;
DDRB  = 0x09;
PORTD = 0x00;
DDRD  = 0x20;

//TCCR0B = 0x00; //stop timer   С Таймером_0 какие то странности
//TCNT0 = 0x91; //set count
//OCR0A = 0x6F; //set count
//OCR0B = 0x6F; //set count
//TCCR0A = 0x50; //start timer
//TCCR0B = 0x01; //start timer

TCCR1B = 0x00; //stop timer
TCNT1H = 0xFF; //set count value
TCNT1L = 0xE4;
OCR1AH  = 0x00; //set compare value
OCR1AL  = 0x1C;
OCR1BH  = 0x00; //set compare value
OCR1BL  = 0x1C;
TCCR1A = 0x53;
TCCR1B = 0x11; //start Timer
while (1)
{
ON_IR;
delay_us(600);
OFF_IR;
if (PIND.6 == 0){PORTB.0 = 1;}
else {PORTB.0 = 0;}
delay_us(8000);
}
}

#include <tiny2313.h>
#include <delay.h>
#define ON_IR TCCR0A = 0x50
#define OFF_IR TCCR0A = 0x00
// Declare your global variables here

void main(void)
{
// Declare your local variables here

// Crystal Oscillator division factor: 1
#pragma optsize-
CLKPR=0x80;
CLKPR=0x00;
#ifdef _OPTIMIZE_SIZE_
#pragma optsize+
#endif

// Port B initialization
// Func7=In Func6=In Func5=In Func4=Out Func3=Out Func2=Out Func1=In Func0=Out
// State7=T State6=T State5=T State4=0 State3=0 State2=0 State1=T State0=0
PORTB=0x00;
DDRB=0x1D;

// Port D initialization
// Func6=In Func5=Out Func4=In Func3=In Func2=In Func1=In Func0=In
// State6=T State5=0 State4=T State3=T State2=T State1=T State0=T
PORTD=0x00;
DDRD=0x20;

TCCR0B = 0x00; //stop timer
TCNT0 = 0x00; //set count
OCR0A = 0x6F; //set count
OCR0B = 0x6F; //set count
TCCR0A = 0x50; //start timer
TCCR0B = 0x01; //start timer

// 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=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;

// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// Interrupt on any change on pins PCINT0-7: Off
GIMSK=0x00;
MCUCR=0x00;

// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;

// Universal Serial Interface initialization
// Mode: Disabled
// Clock source: Register & Counter=no clk.
// USI Counter Overflow Interrupt: Off
USICR=0x00;

// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;

while (1)
      {
      ON_IR;
      delay_us(600);
      OFF_IR;
      delay_us(600);

      };
}