[SOLVED] Newbie of MPLAB X. Led blinking with PIC32MX

#include <p32xxxx.h>
#include <plib.h>
#include <stdio.h>
#include <stdlib.h>
#include <xc.h>

// PIC32MX795F512L Configuration Bit Settings

// 'C' source line config statements


// DEVCFG3
// USERID = No Setting
#pragma config FSRSSEL = PRIORITY_7     // SRS Select (SRS Priority 7)
#pragma config FMIIEN = OFF             // Ethernet RMII/MII Enable (RMII Enabled)
#pragma config FETHIO = OFF             // Ethernet I/O Pin Select (Alternate Ethernet I/O)
#pragma config FCANIO = OFF             // CAN I/O Pin Select (Alternate CAN I/O)
#pragma config FUSBIDIO = OFF           // USB USID Selection (Controlled by Port Function)
#pragma config FVBUSONIO = OFF          // USB VBUS ON Selection (Controlled by Port Function)

// DEVCFG2
#pragma config FPLLIDIV = DIV_2         // PLL Input Divider (2x Divider)
#pragma config FPLLMUL = MUL_20         // PLL Multiplier (20x Multiplier)
#pragma config UPLLIDIV = DIV_12        // USB PLL Input Divider (12x Divider)
#pragma config UPLLEN = OFF             // USB PLL Enable (Disabled and Bypassed)
#pragma config FPLLODIV = DIV_1         // System PLL Output Clock Divider (PLL Divide by 1)

// DEVCFG1
#pragma config FNOSC = PRIPLL           // Oscillator Selection Bits (Primary Osc w/PLL (XT+,HS+,EC+PLL))
#pragma config FSOSCEN = OFF            // Secondary Oscillator Enable (Disabled)
#pragma config IESO = OFF               // Internal/External Switch Over (Disabled)
#pragma config POSCMOD = XT             // Primary Oscillator Configuration (XT osc mode)
#pragma config OSCIOFNC = OFF           // CLKO Output Signal Active on the OSCO Pin (Disabled)
#pragma config FPBDIV = DIV_1           // Peripheral Clock Divisor (Pb_Clk is Sys_Clk/1)
#pragma config FCKSM = CSDCMD           // Clock Switching and Monitor Selection (Clock Switch Disable, FSCM Disabled)
#pragma config WDTPS = PS1048576        // Watchdog Timer Postscaler (1:1048576)
#pragma config FWDTEN = ON              // Watchdog Timer Enable (WDT Enabled)

// DEVCFG0
#pragma config DEBUG = OFF              // Background Debugger Enable (Debugger is disabled)
#pragma config ICESEL = ICS_PGx2        // ICE/ICD Comm Channel Select (ICE EMUC2/EMUD2 pins shared with PGC2/PGD2)
#pragma config PWP = OFF                // Program Flash Write Protect (Disable)
#pragma config BWP = OFF                // Boot Flash Write Protect bit (Protection Disabled)
#pragma config CP = OFF                 // Code Protect (Protection Disabled)

void DelayMs(WORD delay)
 {
     T1CONbits.ON=1;           // timer1 ON
     while( delay-- )         // do this cycle for a number of 1 ms interrupt egual to delay
     {
      while(IFS0bits.T1IF==0){}; //wait until 1 ms interrupt 
      IFS0bits.T1IF=0;           // clear flag
      while(IFS0bits.T1IF==1){}; // if flag is cleared, go on
     }
     T1CONbits.ON=0;           // timer1 OFF
 }

int main(int argc, char** argv) {
    SYSTEMConfigPerformance(80000000L);
	CheKseg0CacheOn();
    mCheConfigure(CHE_CONF_WS2 | CHE_CONF_PF_C);

AD1PCFG = 0xFFFF;      // Configure AN pins as digital I/O
DDPCONbits.JTAGEN = 0; // disable the JTAG port
  
  // Configurazione interrupt del timer
T1CONbits.ON=0;           // timer1 OFF
T1CONbits.TCKPS=0b00;            // prescaler=1 (T1CON <5-4>) , period 1/80 Mhz = 12,5 ns

T1CONbits.TCS=0;            // internal clock 
TMR1=0;                // initial value of timer=0
PR1=80000;              // PR set for 1 ms interrupt
IPC1bits.T1IP=0b101; //  interrupt priority set to 5 ( IPC1 <4-2> )
IEC0bits.T1IE=1;    // generate interrupt if T1IF=1
IFS0bits.T1IF=0;    // overflow  flag. 


TRISB = 0;             // Initialize PORTB as output
LATB = 0;              // Set PORTB to zero


  while(1) {

    PORTBINV=0xFFFF; // invert PORTB
    DelayMs(5000);  // wait 5 seconds
  }

    return (EXIT_SUCCESS);
}

DEVCFG3 : $1FC02FF0 : 0x00070000
DEVCFG2 : $1FC02FF4 : 0x00008751
DEVCFG1 : $1FC02FF8 : 0x0094C503
DEVCFG0 : $1FC02FFC : 0x110FF00F