[SOLVED] Need help on PIC18F4550 PORT declaration

[Haphazard]

Hi, I am a beginner in PIC programming and I found a problem while trying out my PIC18f4550, I am using MPLAB C18,
The PORTD7 and PORTC7 is unable to be placed on high, I would like to ask if there's anything wrong with my code initialization. I have simulated in MPLAB simulator (the output on the simulator appeared normal,but failed in hardware for D7 and C7) and also redeclared some of the SFRs that I fear might be causing this problem. The output in hardware for RC7 & RD7 is always 0V.

#include <p18f4550.h>
#include "delays.h"

#pragma config FOSC = HS	
#pragma	config FCMEN = OFF			
#pragma	config IESO = OFF		
#pragma	config PWRT = OFF			
#pragma	config BOR = OFF		
#pragma	config WDT = OFF			
#pragma	config MCLRE = ON		
#pragma	config PBADEN = OFF		
#pragma	config CCP2MX = ON		
#pragma	config LVP = OFF		
#pragma	config XINST = OFF		

void main()
{
SPPCON=0x00;
CCP1CON=0x00;
CCP2CON=0x00;
UCON=0x00;
UCFG=0x00;
TRISD = 0x00;
TRISC = 0x00;	
PORTD=0;
PORTC=0;

while(1)
{
PORTC=0X7F;
PORTD=0X7F;
}
}

Thanks in advance

 

[hexreader]

    LATD=0;
    LATC=0;
    
    while(1)
    {
        LATC=0XFF;
        LATD=0XFF;

0xff, not 0x7f
Use LAT register for output, PORT register only for input

 

[Haphazard]

Thanks a lot for the help, I feel so dumb for making such a simple mistake