Số lần nhấn hiển thị lcd (sw1-sw2-sw3)

/*
 * File:   sw_Lcd.c
 * Author: PhanHoangThinh
 *
 * Created on Ngày 26 tháng 6 n?m 2017, 20:46
 */


#include <xc.h>
#include <htc.h>
#include <stdio.h>
#include <stdlib.h>
#include "lcd.h"

#define _XTAL_FREQ 4000000
// CONFIG1
#pragma config FOSC = HS        // Oscillator Selection bits (HS oscillator: High-speed crystal/resonator on RA6/OSC2/CLKOUT and RA7/OSC1/CLKIN)
#pragma config WDTE = OFF       // Watchdog Timer Enable bit (WDT disabled and can be enabled by SWDTEN bit of the WDTCON register)
#pragma config PWRTE = OFF      // Power-up Timer Enable bit (PWRT disabled)
#pragma config MCLRE = ON       // RE3/MCLR pin function select bit (RE3/MCLR pin function is MCLR)
#pragma config CP = OFF         // Code Protection bit (Program memory code protection is disabled)
#pragma config CPD = OFF        // Data Code Protection bit (Data memory code protection is disabled)
#pragma config BOREN = OFF      // Brown Out Reset Selection bits (BOR disabled)
#pragma config IESO = OFF       // Internal External Switchover bit (Internal/External Switchover mode is disabled)
#pragma config FCMEN = OFF      // Fail-Safe Clock Monitor Enabled bit (Fail-Safe Clock Monitor is disabled)
#pragma config LVP = OFF        // Low Voltage Programming Enable bit (RB3 pin has digital I/O, HV on MCLR must be used for programming)

// CONFIG2
#pragma config BOR4V = BOR40V   // Brown-out Reset Selection bit (Brown-out Reset set to 4.0V)
#pragma config WRT = OFF        // Flash Program Memory Self Write Enable bits (Write protection off)

// #pragma config statements should precede project file includes.
// Use project enums instead of #define for ON and OFF.
unsigned int num1,num2,num3;
void main(void)
{
    ANSEL=0x00;
    ANSELH=0x00;
    TRISBbits.TRISB1=1;
    TRISBbits.TRISB2=1;
    TRISBbits.TRISB3=1;
//    char s[10];
    lcd_init();
    num1=00;
    num2=00;
    num3=00;
    lcd_gotoxy(4,1);
    printf("%02d-%02d-%02d",num1,num2,num3);
    while(1)
 {
        lcd_gotoxy(1,0);
        lcd_puts(" DIGITAL CLOCK");        
        if(RB1==0)
        {  
            __delay_ms(100);
            while(RB1==0)
            {
                __delay_ms(100);
                lcd_gotoxy(4,1);
                num1++;
                printf("%02d",num1);              
                lcd_gotoxy(6,1);
                lcd_puts("-");
                if(num1==99)
                {
                num1=0;
                }
            }          
        }
     
        if(RB2==0)
        {  
            __delay_ms(100);
            while(RB2==0)
            {
                __delay_ms(100);
                lcd_gotoxy(7,1);
                num2++;
                printf("%02d",num2);              
                lcd_gotoxy(9,1);
                lcd_puts("-");
                if(num2==99)
                {
                num2=0;
                }
            }          
        }
       
         if(RB3==0)
        {  
            __delay_ms(100);
            while(RB3==0)
            {
                __delay_ms(100);
                lcd_gotoxy(10,1);
                num3++;
                printf("%02d",num3);            
                if(num3==99)
                {
                num3=0;
                }
            }          
        }
    }
}