초음파 센서가 동작을 하면 LED가 꺼지는 코딩을 했는데 LED가 미동도 없습니다...
 
코딩에는 오류가 안뜨는데 어떤게 문제인가요?
 
 
#include<avr/io.h>
#include<avr/interrupt.h>
#include<stdio.h>
#define F_CPU16000000UL// 16 MHz
#include<util/delay.h>
//
#define Trigger1_ON PORTD|=0x01 //트리거1
#define Trigger2_ON PORTD|=0x02 //트리거2
#define Trigger3_ON PORTD|=0x04 //트리거3
#define Trigger4_ON PORTD|=0x08 //트리거4
//
#define Trigger1_OFF PORTD&=~0x01 //트리거1
#define Trigger2_OFF PORTD&=~0x02 //트리거2
#define Trigger3_OFF PORTD&=~0x04//트리거3
#define Trigger4_OFF PORTD|&=~0x08 //트리거4
//
#define Echo1             (PIND&0x10)//초음파 에코 PC2
#define Echo2             (PIND&0x20)//초음파 에코 PC3
#define Echo3             (PIND&0x40)//초음파 에코 PC2
#define Echo4             (PIND&0x80)//초음파 에코 PC3
 
char s[30];
//
unsigned int getEcho(char ch){
 
 unsigned int range;

 switch(ch){
  case 0: Trigger1_ON; _delay_us(200); Trigger1_OFF; break; // 10uS
  case 1: Trigger1_ON; _delay_us(200); Trigger1_OFF; break; // 10uS
  
  case 2: Trigger1_ON; _delay_us(200); Trigger1_OFF; break; // 10uS
  case 3: Trigger1_ON; _delay_us(200); Trigger1_OFF; break; // 10uS
 }
 
 switch(ch){
  
  case 0: while(Echo1==0x00); TCNT1=0; TCCR1B=2; while(Echo1); break;
  case 1: while(Echo2==0x00); TCNT1=0; TCCR1B=2; while(Echo2); break;
  case 2: while(Echo3==0x00); TCNT1=0; TCCR1B=2; while(Echo3); break;
  case 3: while(Echo4==0x00); TCNT1=0; TCCR1B=2; while(Echo4); break;
 }
 TCCR1B=0;range=TCNT1/116;// the range in CM
 
 return(range);

}

int main(void){
 unsigned int range[4];
 DDRD=0x0F;          
 TCCR1A=0; TCCR1B=8; 
 _delay_ms(100); 
 
 while(1){
  
  range[0]=getEcho(0); _delay_ms(100);
  range[1]=getEcho(1); _delay_ms(100);
  range[2]=getEcho(2); _delay_ms(100);
  range[3]=getEcho(3); _delay_ms(100);
  
  if (PORTD|=0x01)
  {
   PORTF|=1;
  }
  else{PORTF&=~1;}
   
   
   if (PORTD|=0x02)
   {
    PORTF|=2;
   }
   else{PORTF&=~2;}
    
    
    if (PORTD|=0x04)
    {
     PORTF|=4;
    }
    else{PORTF&=~4;}
     
     
     if (PORTD|=0x08)
     {
      PORTF|=8;
     }
     else{PORTF&=~8;}
      
 }
}