I'm build a circuit with a pic18F4550, I'm trying to power up 8 leds, but I get no output voltage from any output pin.

I suspect the pic might be broken because while building the circuit I made two mistakes:

• I wired the 5v regulator wrongly, and supplied 9v to the pic for the first time
• on one side of the pic I connected power to vss and ground to vcc

However, after noticing my mistakes and fixing them, I reprogrammed pic and got no error (I'm using MPlabX and PicKit2). Also the pic is not heating up or anything like that.

I triple checked all the wires and schematics, but there is only 5v in the two vcc pins, and 0v in the output ports.

This is my program:

#pragma config XINST = OFF
#if defined(__XC)
    #include <xc.h>        /* XC8 General Include File */
#elif defined(HI_TECH_C)
    #include <htc.h>       /* HiTech General Include File */
#elif defined(__18CXX)
    #include <p18cxxx.h>   /* C18 General Include File */
#endif
#if defined(__XC) || defined(HI_TECH_C)

#include <stdint.h>        /* For uint8_t definition */
#include <stdbool.h>       /* For true/false definition */

#endif
#define NO_CLRWDT
#define SYSCLK          20000000
#define PLL             4
#define SYSCLK_PLL      (SYSCLK*PLL)
#define FCY             (SYSCLK_PLL/2)

#include "system.h"        /* System funct/params, like osc/peripheral config */
#include "user.h"          /* User funct/params, such as InitApp */

void main(void){
    TRISD = 0x00;
    TRISC = 0x00;
    PORTC = 0xFF;
    PORTD = 0xFF;
    while(1){
    }

}

Could my pic be broken? and how can I check or debug the issue? I'm newbie at both soft and electronics.