PIC -unstable output at I/O pin

[kotsam]

PIC

Hey guys ,

urgent help other wise i would in truoble ;

what make the i/o pins not stable ,

I'm talking about PIC18F4550 , this code not working as expected , RD4 should be high all the time , but working high for some seconds and then it switched to be low and then it goes to be high again .

i would so thankful for the help , its so urgent

	 void main()
{
//****************port configuration********************
	 LATE			= 0x00;
	 PORTE			= 0b11111111;
	 LATB 			= 0x00;           //Clear port b 
	 TRISB 			= 0x00; 			// port b as output 		
	 LATD 			= 0x00;    		//clear port d 
	 TRISD			= 0x00;			//port d as output 
	 TRISC 			= 0b10011111;    //config RC6 rx as input 
	 LATA 			= 0b00000000;           //Clear port b 
	 TRISA 			= 0b11111111; 			// port b as output 

//******************usart configuration********************** 
	 OpenUSART(USART_TX_INT_OFF & USART_RX_INT_ON & USART_ASYNCH_MODE & USART_EIGHT_BIT & USART_CONT_RX & USART_BRGH_LOW, 64);

//*****************adc channels configuration***************** 
	 OpenADC( ADC_FOSC_8 & ADC_LEFT_JUST & ADC_0_TAD,ADC_CH7 & ADC_INT_OFF,0b1111 );

//*****************Code Start Here****************************
while(1)
	{
		if (DataRdyUSART())    //check if there is interrupt
		{
    	 USARTREC();
		}//end if
			LATDbits.LATD0 = 1; //u/d High



			LATDbits.LATD4 = 1; //u/d High
	 		Delay1KTCYx (500);
			putsUSART(error);
			Delay1KTCYx (500);

		 
		



			 
	}//end while
	
} //end main

 

[kotshe]

Re: PIC

oki to explain what i have more , if i'm config RD4 as output , and his status is high it gives me 2.79 volt instead of 5 volts ?? and the same when its low