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PIC18f452

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p1ng54

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Hi I am using pic18f452 and I am trying to get it to communicate with laptop through RS-232. I used hex file from mikroC built in library code and tried burning it using genius g540 it didnt work I got HIGH(Logic 1) output on several pins I didnt code to and LOW(Logic 0) on which I coded to get HIGH. then I used mplab code and after several tries I got my desired output (all pins HIGH) except for the port E which I did program as HIGH. Below is my mplab code
C:
#include <p18f452.h>
//Global variables
char word=1;  

// main code
void main()
{
    int i;
    ADCON0=0;
    TRISA=0;
    TRISB=0;
    TRISC=0;
    TRISD=0;
    TRISE=0;
//    TRISCbits.TRISC6=0;
//    TRISCbits.TRISC7=1;
//    TXSTA=0x20;          //configuring TX reg
//    SPBRG=15;          //Setting BAUD Rate
//    TXSTAbits.TXEN=1;  //TX EN
//    RCSTAbits.SPEN=1;  //Serial port EN
//    RCSTAbits.CREN=1;  //Continous recieve en
    PORTA=0xFF;
    PORTB=0xFF;
    PORTC=0xFF;
    PORTD=0xFF;
    PORTE=0xFF;
    //while(1)
    //{
    //    while(PIR1bits.RCIF==0);
    //    word=RCREG;
    //    PORTB=word;
    //    word = word + 0x30;
    //    TXREG=word;
    //    word = word - 0x30;
    //    PIR1bits.RCIF=0;
    //  
    //}
}
 
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