16f877 seri haberleşme sorunu(pic)

#use rs232(baud=9600, xmit=PIN_c6, rcv=pin_c7,uart1) 
  #byte INTCON=0x0C 
  #byte PIE1=0x8C 
  #use fast_io (b) //trisleri kendimiz ayarlayalim 
  #use fast_io (d) 
  long bx; //kesme ile gelen data 
   
  void main() 
  { 
  setup_adc_ports(NO_ANALOGS); 
     setup_adc(ADC_OFF); 
     setup_psp(PSP_DISABLED); 
     setup_spi(SPI_SS_DISABLED); 
     
     setup_timer_1(T1_DISABLED); 
  INTCON=0x3000000; //global ve peripheral kesmeler aktif 
  PIE1=0b00100000; //uart kesmesi ayarlandı kesmeler aktif 
   
   
   
  #INT_RDA 
  void seri_data_geldi(){ 
  bx=getc(); 
   
  if(bx==123) 
  output_high(pin_d0); 
  if(bx==132) 
  output_low(pin_d0); 
   
  }