드론/로봇/라인트레이서 HOT센서부 소스코드 입니다. 잘안되네요...

#include <mega128.h>
#asm
   .equ __lcd_port=0x18 ;PORTB
#endasm
#include <lcd.h>  
#include <delay.h>
#include <stdio.h>

#define sen_on()        PORTA = 0xff
#define sen_off()       PORTA = 0x00
#define SENSOR_MODE_ON  1
#define SENSOR_MODE_OFF  2

typedef  unsigned char byte;
typedef  unsigned int word;
typedef  unsigned long dword;

word  sensor_input[8];
byte sensor_mode;
int sensor_cnt = 0;
#define ADC_VREF_TYPE 0x00

// ADC interrupt service routine
interrupt [ADC_INT] void adc_isr(void)
{  
    sensor_input[sensor_cnt] = ADCW;
    sensor_cnt++;
   switch(sensor_cnt)
    {
        case 0:  ADMUX = 0x00;  break;
        case 1:  ADMUX = 0x01;  break;
        case 2:  ADMUX = 0x02;  break;
        case 3:  ADMUX = 0x03;  break;
        case 4:  ADMUX = 0x04;  break;
        case 5:  ADMUX = 0x05;  break;
        case 6:  ADMUX = 0x06;  break;
        case 7:  ADMUX = 0x07;  break;
        default: sensor_cnt=0; break;
    }                
   // ADMUX = 0x02; // adc cheannel select
   //if(sensor_cnt>=8) sensor_cnt=0;          
}

interrupt [TIM1_OVF] void timer1_ovf_isr(void)
{
   
    if(sensor_mode == SENSOR_MODE_ON)      //초기값은 sensor_mode 애  SENSOR_MODE_ON값이 들어가있음.
    {                         // 60us  
        sen_on();     //발광 on
        delay_us(3);  //2~3적당.
        ADCSRA|=0x40; 
        sensor_mode = SENSOR_MODE_OFF;     //스위칭 변수.                       
        TCNT3H = 0xff; //start timer     
        TCNT3L = 0xf1;
       
    }
    else if(sensor_mode ==  SENSOR_MODE_OFF)
    {  
                             // 180us  
        sen_off();     //발광 off
        sensor_mode = SENSOR_MODE_ON;      // 스위칭 변수.
        TCNT3H = 0xff;
        TCNT3L = 0xdd; //start timer         
    }
                              

}
void adc_init(void)
{   
  ADCSRA = 0x00; //disable adc
  ADMUX = ADC_VREF_TYPE;  // VRef
  ACSR  = 0x80;
  ADCSRA = 0x8E; // ADC Prescaler 128
}

void main(void)
{              
  char lcd_buf[16];
  DDRA = 0b11111111;
    
   
  DDRF = 0x00;

        lcd_init(16);
       
   TIMSK = 0x04;
   TCCR1A = 0x00;
   TCCR1B = 0x03; //start timer2, prescale 64   
   TCNT1H = 0x00;
   TCNT1L = 0x00;
  
   //ETIMSK = 0x40; //timer2  compare interupt
   sensor_mode = SENSOR_MODE_ON;
   adc_init();
   #asm("sei");
      
    while (1)
    {  
        lcd_clear();
        lcd_gotoxy(0,0);
        sprintf(lcd_buf, "%d",sensor_input[3]);
        lcd_puts(lcd_buf);
        lcd_gotoxy(4,0);
        sprintf(lcd_buf, "%d",sensor_input[1]);
        lcd_puts(lcd_buf);
        lcd_gotoxy(8,0);
        sprintf(lcd_buf, "%d",sensor_input[2]);
        lcd_puts(lcd_buf); 
        lcd_gotoxy(0,1);
        sprintf(lcd_buf, "%d",sensor_input[7]);
        lcd_puts(lcd_buf);
        lcd_gotoxy(4,1);
        sprintf(lcd_buf, "%d",sensor_input[6]);
        lcd_puts(lcd_buf);
        lcd_gotoxy(8,1);
        sprintf(lcd_buf, "%d",sensor_input[5]);
        lcd_puts(lcd_buf);
       
       
        delay_ms(500); // 0.5초 지연
      };
}

 

이렇게소스코드를짜보았는데 수광부쪽테스트를해봐도 반응이없네요... 소스쪽문제일까요 ㅠㅠ?