[General] Need help in MplabX and pic24f

// LEDblink.c  for Explorer 16 with a PIC24FJ256GB110
//     LEDs are connected to PORT A

#include "p24Fxxxx.h"

_CONFIG1( JTAGEN_OFF & GCP_OFF & GWRP_OFF & COE_OFF & FWDTEN_OFF & ICS_PGx2) 
_CONFIG2( 0xF7FF & IESO_OFF & FCKSM_CSDCMD & OSCIOFNC_OFF & POSCMOD_HS & FNOSC_PRIPLL & PLLDIV_DIV2 & IOL1WAY_ON)

// main program code
int main(void)
{
    int i=1;
	long int j;
	TRISA =0;				//all A bits are output
    while (1)				// loop displaying shifting bit										
      {
       for(j=0;j<100000l;j++) 
	   PORTA=i; 		// output i to PORTA
       i<<=1;				// shift i one bit left				
       if(i>256)i=1;		// if i> 256 reset to 1
      }
}

#pragma config POSCMOD = HS             // Primary Oscillator Select (HS Oscillator mode selected)
#pragma config OSCIOFNC = OFF           // Primary Oscillator Output Function (OSC2/CLKO/RC15 functions as CLKO (FOSC/2))
#pragma config FCKSM = CSDCMD           // Clock Switching and Monitor (Clock switching and Fail-Safe Clock Monitor are disabled)
#pragma config FNOSC = PRIPLL           // Oscillator Select (Primary Oscillator with PLL module (HSPLL, ECPLL))
#pragma config IESO = OFF               // Internal External Switch Over Mode (IESO mode (Two-Speed Start-up) disabled)

// CONFIG1
#pragma config WDTPS = PS32768          // Watchdog Timer Postscaler (1:32,768)
#pragma config FWPSA = PR128            // WDT Prescaler (Prescaler ratio of 1:128)
#pragma config WINDIS = ON              // Watchdog Timer Window (Standard Watchdog Timer enabled,(Windowed-mode is disabled))
#pragma config FWDTEN = OFF             // Watchdog Timer Enable (Watchdog Timer is disabled)
#pragma config ICS = PGx2               // Comm Channel Select (Emulator/debugger uses EMUC2/EMUD2)
#pragma config GWRP = OFF               // General Code Segment Write Protect (Writes to program memory are allowed)
#pragma config GCP = OFF                // General Code Segment Code Protect (Code protection is disabled)
#pragma config JTAGEN = OFF             // JTAG Port Enable (JTAG port is disabled)

// LEDblink.c  for Explorer 16 with a PIC24FJ256GB110
//     LEDs are connected to PORT A

#include "p24Fxxxx.h"

#pragma config POSCMOD = HS             // Primary Oscillator Select (HS Oscillator mode selected)
#pragma config OSCIOFNC = OFF           // Primary Oscillator Output Function (OSC2/CLKO/RC15 functions as CLKO (FOSC/2))
#pragma config FCKSM = CSDCMD           // Clock Switching and Monitor (Clock switching and Fail-Safe Clock Monitor are disabled)
#pragma config FNOSC = PRIPLL           // Oscillator Select (Primary Oscillator with PLL module (HSPLL, ECPLL))
#pragma config IESO = OFF               // Internal External Switch Over Mode (IESO mode (Two-Speed Start-up) disabled)

// CONFIG1
#pragma config WDTPS = PS32768          // Watchdog Timer Postscaler (1:32,768)
#pragma config FWPSA = PR128            // WDT Prescaler (Prescaler ratio of 1:128)
#pragma config WINDIS = ON              // Watchdog Timer Window (Standard Watchdog Timer enabled,(Windowed-mode is disabled))
#pragma config FWDTEN = OFF             // Watchdog Timer Enable (Watchdog Timer is disabled)
#pragma config ICS = PGx2               // Comm Channel Select (Emulator/debugger uses EMUC2/EMUD2)
#pragma config GWRP = OFF               // General Code Segment Write Protect (Writes to program memory are allowed)
#pragma config GCP = OFF                // General Code Segment Code Protect (Code protection is disabled)
#pragma config JTAGEN = OFF             // JTAG Port Enable (JTAG port is disabled)
//_CONFIG1( JTAGEN_OFF & GCP_OFF & GWRP_OFF & COE_OFF & FWDTEN_OFF & ICS_PGx2) 
//_CONFIG2( 0xF7FF & IESO_OFF & FCKSM_CSDCMD & OSCIOFNC_OFF & POSCMOD_HS & FNOSC_PRIPLL & PLLDIV_DIV2 & IOL1WAY_ON)
//_CONFIG3( WPCFG_WPCFGDIS & WPDIS_WPDIS)	

// main program code
int main(void)
{
    int i=1;
	long int j;
	TRISA =0;				//all A bits are output
    while (1)				// loop displaying shifting bit										
      {
       for(j=0;j<100000l;j++) 
			PORTA=i; 		// output i to PORTA
       i<<=1;				// shift i one bit left				
	   if(i>256)i=1;		// if i> 256 reset to 1
      }
}

    while (1)				// loop displaying shifting bit										
      {
       for(j=0;j<100000l;j++) 
			PORTA=i; 		// output i to PORTA
       i<<=1;				// shift i one bit left				
       if(i>128)i=1;		// if i> 128 reset to 1
      }

Clock 4MHz specified in schamtic is ognired for oscillator mode 'FRC'

// lcd.c -  Explorer 16 - functions for the PC1602-J lcd display 8-bit mode
//
// see http://www.repairfaq.org/filipg/LINK/F_LCD_progr.html

#include "hardware.h"
#include "timer.h"
#include "lcd.h"

// LCD display ports etc
#define LCDdata LATE					// data port
#define LCDdataEnable	TRISE
#define RS LATBbits.LATB15				// RS bit in LCDstatus
#define RW LATDbits.LATD5				// read/write bit in LCDstatus
#define E  LATDbits.LATD4   			// enable bit in LCDstatus
#define Eenable TRISDbits.TRISD4
#define ERSenable TRISDbits.TRISD5
#define RWenable TRISBbits.TRISB15

void lcd_delay() { mSecDelay(2); }  // if LCD does not work make this longer

// Write a nibble to the LCD
// may have to adjust delays to suit the processor and clock
void lcdNibble(int n)
{
    int lcd=LCDdata;
	lcd_delay();
    LCDdata=n;
	lcd_delay();
    E=1;					// take clock E high 
	lcd_delay();
    E=0;
	lcd_delay();
 }

// Write a Control Command to the LCD
// This is written as two nibbles
void lcdCmd(int c)
{
 	RS=0;			        // Take RS pin low for command
	lcdNibble(c);			        // Makeup Lower Nibble
}

// write a data byte to LCD
int lcdPutchar(int d)
{
//    printf("%c", d);
	RS=1; 				// Take RS pin high for data
	lcdNibble(d);		            // Makeup Lower Nibble
    return 1;
}

// Initialise the LCD in 4bit Mode
void lcdInit()
{
	E=0;				// take E low
 	RS=0;				// Take RS pin low for command
 	RW=0;				// Take RS pin low for command
    // set RS, RW and E bits as output
	Eenable =0;
	ERSenable =0;
	RWenable =0;
    LCDdataEnable &= 0x0;          // set bits 0-3 output for data
	lcdNibble(0x3);		// This put the LCD into Soft Reset 
	lcdNibble(0x3);
	lcdNibble(0x3);
	lcdNibble(0x2);
	lcd_delay();
//	lcdCmd(0x28);			// 2 line, 4 bit mode 
	lcdCmd(0x38);			// 2 line, 8 bit mode 
	lcd_delay();
    lcdCmd(0x6);			// increment cursor after each write
	lcd_delay();
    lcdCmd(0x1);			// clear display
	lcd_delay();
    lcdCmd(0x2);			// home
	lcd_delay();
    lcdCmd(0xF);			// turn disply on
	lcd_delay();
}

// move to line (1 or 2) at position >= 1
void lcdCursor(unsigned char line,unsigned char position)
{
   switch (line)
	{
	  case 1:lcdCmd (0x80 + position -1 );lcdCmd (0x80 + position -1 ); break;
	  case 2:lcdCmd (0xc0 + position -1 ); lcdCmd (0xc0 + position -1 ); break;
	  default : break;
  	}
  lcd_delay();
}

void lcdString(unsigned char line, unsigned char position, unsigned char *string)
{

	lcdCursor(line,position);
	while (*string)
	  lcdPutchar(*string++);

}

void lcdStringAtCursor(unsigned char *string)
{

	while (*string)
	  lcdPutchar(*string++);
}

void lcdClear(void)
{
	lcdCmd(0x01);
}

void lcdHome(void)
{
	lcdCmd(0x02);
}


// clear line 1 or line 2
void lcdClearLine(unsigned char line)
{
	unsigned char i;
	lcdCursor(line,1);
	for (i=0; i<16; i++) lcdPutchar(' ');
	lcdCursor(line,1);
}

void lcd_delay() { mSecDelay(2); }  // if LCD does not work make this longer

#include "hardware.h"
#include "lcd.h"