16f877a ile adc sorunu.

#include <ADC(16f877a).h>
#include <lcd.c>

//unsigned long int bilgi; 
float bilgi=0, V1=0, V2=0, I1=0, I2=0;     
byte activeadc=0xff;
void main()
{
   set_tris_a(0xff);
   set_tris_e(0xff);
 
   setup_timer_0(RTCC_INTERNAL | RTCC_8_BIT | RTCC_DIV_4);     
   setup_timer_1(T1_DISABLED);
   setup_timer_2(T2_DISABLED,0,1);
 
   setup_psp(PSP_DISABLED);
   setup_spi(SPI_SS_DISABLED);
 
   setup_comparator(NC_NC_NC_NC);
 
   setup_vref(FALSE);
   setup_adc(ADC_CLOCK_INTERNAL);
   setup_adc_ports(ALL_ANALOG);
 
   disable_interrupts(GLOBAL);
 
   lcd_init();
   delay_ms(5);
 
   float Vcarpan=26.54;
   float Icarpan=204.8;
 
   while(true)
   {
      output_toggle(LED);
      delay_ms(500);
      output_toggle(LED);
      delay_ms(500);
      output_toggle(LED);
      ///V1///
      if(activeadc!=0x00){
         set_adc_channel(0);
         delay_us(100);
         activeadc=0x00;
      }
      bilgi=read_adc();
      V1=bilgi/Vcarpan;
      if(V1<0)V1=0;
     
      ///V2///
      if(activeadc!=0x01){
         set_adc_channel(1);
         delay_us(20);
         activeadc=0x01;
      }
      bilgi=read_adc();
      V2=(bilgi/Vcarpan);
      if(V2<0)V2=0;
      lcd_gotoxy(1,1);
      printf(lcd_putc,"\f1->%2.2fV-%fA",V1,I1);
      printf(lcd_putc,"\n2->%2.2fV-%fA",V2,I2);
   }
}

#include <16F877A.h>
#device ADC=10

#FUSES NOWDT           
#FUSES HS                  
#FUSES NOPUT                 
#FUSES NOPROTECT           
#FUSES NODEBUG              
#FUSES NOBROWNOUT         
#FUSES NOLVP              
#FUSES NOCPD                   
#FUSES NOWRT               

#use delay(clock=20000000)

#define LED PIN_D7
#define DELAY 1000

#define LCD_ENABLE_PIN PIN_C7
#define LCD_RS_PIN PIN_C5
#define LCD_RW_PIN PIN_C6
#define LCD_DATA4 PIN_C3
#define LCD_DATA5 PIN_C2
#define LCD_DATA6 PIN_C1
#define LCD_DATA7 PIN_C0