[Help] Giúp mình xem lỗi code build bằng MPLab-CCS với

[ttlg59]

Mình mới tập viết code cho pic được 1 tuần, hiện đang thử viết một số code đơn giản. nhưng khi mình mô phỏng, lúc đầu nó chạy bình thường, sau một thời gian thì nó bị lỗi thế này:


Còn đây là code của nó

#include <16F877A.h>
#include "def_16F877A.h"
#include "lcd_lib_8bit.c"
#include "ds1307.c"

#FUSES NOWDT //No Watch Dog Timer
#FUSES HS //High speed Osc (> 4mhz)
#FUSES NOPUT //No Power Up Timer
#FUSES NOPROTECT //Code not protected from reading
#FUSES NODEBUG //No Debug mode for ICD
#FUSES NOBROWNOUT //No brownout reset
#FUSES NOLVP //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O
#FUSES NOCPD //No EE protection

#use delay(clock=20000000)
#use i2c(Master,Fast,sda=PIN_C4,scl=PIN_C3)

#define SET PIN_C0 // Nut menu-set
#define UP PIN_C1 // Nut tang
#define DOWN PIN_C2 // Nut giam
#define MODE PIN_C6 // Nut chuyen che do Time & Count
#define ZERO PIN_C7
#define SPEAKER PIN_A3

//===================== Khai bao bien ===========================
int8 secon,minute,hour,date,wday,month,year;
unsigned char time[17],days[17];

//======================== Khai bao ham =========================
void  update(int8 address,int8 var);
void ds1307_def();
void load_time();
void display_hr();
void set_incr(int address, char var);
//====================== Ham chinh ========================
void main()
{
//
days[0]=' ';days[1]=' ';days[5]=' ';days[8]='/';days[11]='/';days[12]='2';days[13]='0';days[16]='\0';
time[0]=' ';time[1]=' ';time[2]=' ';time[3]=' ';time[4]=' ';time[7]=':';time[10]=':';time[13]=' ';time[13]=' ';
time[14]=' ';time[15]=' ';time[16]='\0';
//
   set_tris_b(0x00);
   lcd_init();
   delay_ms(50);
   lcd_cmd(0x80);
   printf(lcd_putchar," DIGITAL CLOCK ");
   lcd_cmd(0xC0);
   printf(lcd_putchar," DESIGN BY TLG ");
   delay_ms(100);
   lcd_cmd(0x01);
   delay_ms(3);
   ds1307_def();
   while(TRUE)
   {  
      load_time();
      display_hr();
      set_incr(1,minute);
   }

}


//=================== Ham thiet lap thoi gian ban dau ========================
void ds1307_def()
{
// Thiet lap mac dinh: 00:00:00 Sun 18/08/2013
update(0x00,0b00000000);
update(0x01,0b00000000);
update(0x02,0b00000000);
update(0x03,0b00000001);
update(0x04,0b00011000);
update(0x05,0b00001000);
update(0x06,0b00010011);
}

//================ Ham up date thong tin =======================
void  update(int8 address,int8 var) // address=dia chi, var=bien
{
i2c_start();
i2c_write(0xD0);
i2c_write(address);
i2c_write(var);
i2c_stop();
}

//
void load_time()
{
i2c_start();
i2c_write(0xD0);        //Gui dia chi cua slave
i2c_write(0x00);        //Thiet lap lai con tro - set register pointer
i2c_stop();
i2c_start();
i2c_write(0xD1);        // gui lenh doc du lieu
secon  = i2c_read(1);    // starts w/last address stored in register pointer
minute  = i2c_read(1);
hour   = i2c_read(1);    //che do 24h ko can AND
wday   = i2c_read(1);
date  = i2c_read(1);
month = i2c_read(1);
year   = i2c_read(0);
i2c_stop();
/////
switch (wday){
   case 2: {days[2]='M';days[3]='o';days[4]='n';}
   break;
   case 3: {days[2]='T';days[3]='u';days[4]='e';}
   break;
   case 4: {days[2]='W';days[3]='e';days[4]='d';}
   break;
   case 5: {days[2]='T';days[3]='h';days[4]='u';}
   break;
   case 6: {days[2]='F';days[3]='r';days[4]='i';}
   break;
   case 7: {days[2]='S';days[3]='a';days[4]='t';}
   break;
   case 1: {days[2]='S';days[3]='u';days[4]='n';}
   break;
}
/////
time[12] = (secon&0x0F)+0x30;  // Tach' 4 bit thap roi tao ma hien thi tren lcd
time[11] = swap(secon&0x70)+0x30; // Tach 4 bit cao roi tao ma hien thi tren lcd
time[9] = (minute&0x0F)+0x30;
time[8] = swap(minute&0x70)+0x30;
time[6] = (hour&0x0F)+0x30;
time[5] = swap(hour&0x70)+0x30;
days[7] = (date&0x0F)+0x30;
days[6] = swap(date&0x31)+0x30;
days[10] = (month&0x0F)+0x30;
days[9] = swap(month&0x10)+0x30;
days[15] = (year&0x0F)+0x30;
days[14] = swap(year&0xF0)+0x30;
/////
}

void display_hr()
{
lcd_cmd(0x80);
LCD_String(days,0);
lcd_cmd(0xC0);
LCD_String(time,0);
}
//======================= ham thu nut' bam =======================
void set_incr(int address, char var)
{
int8 temp;
int8 temph,templ;

if(address==0||address==1){
templ=(var&0x0F);
temph=swap(var&0x70);
}
if(address==2){
templ=(var&0x0F);
temph=swap(minute&0x70);
}
if(address==3){
templ=var;
temph=0x00;
}
if(address==4){
templ=(var&0x0F);
temph=swap(var&0x30);
}
if(address==5){
templ=(var&0x0F);
temph=swap(var&0x10);
}
if(address==6){
templ=(var&0x0F);
temph=swap(var&0xF0);
}
if(!input(SET)){
templ+=0x01;
   if(address==0||address==1){
      if(templ>0x09) {templ=0x00; temph+=0x01;}
      if(temph>=0x06) temph=0x00;
   }
   if(address==2){
      if(templ>0x09) {templ=0x00; temph+=0x01;}
      if(temph==0x02&&templ>0x03) {templ=0x00; temph=0x00;}
   }
   if(address==3){
      if(templ>0x07) templ=0x01;
   }
   if(address==4){
      if(templ>0x09) {templ=0x00; temph+=0x01;}
      if(temph>0x03) {temph=0x00; templ=0x01;}
   }
   if(address==5){
      if(templ>0x09) {templ=0x00; temph+=0x01;}
      if(temph>0x01) {temph=0x00; templ=0x01;}
   }
   if(address==6){
      if(templ>0x09) {templ=0x00; temph+=0x01;}
      if(temph>0x09) {temph=0x00;}
   }
temp=swap(temph)|templ;
update(address,temp);
}

}

À, cho mình hỏi luôn, mình muốn vẽ một character riêng lên CGRAM trống rồi hiện lên lcd thì làm thế nào vậy?
Ví dụ như:

const char speaker_off[] = {0,4,13,30,28,12,20,0};
hoặc
const byte speaker_on[] = {0x00,0x04,0x0C,0x1C,0x1C,0x0C,0x04,0x00};


Mong mọi người giúp đỡ.