/********************************* MAIN PROGRAM START*************************************/
#include<reg51.h>
#include”lcd8.h”
unsigned char xx,xxx,zz,zzz;
void main()
{
EA=1;
TMOD=0x11;
ET0=1;ET1=1;
TH0=0x3c;TL0=0xaf;
TH1=0x3c;TL1=0xaf;
Lcd8_Init();
Lcd8_Display(0x80,”TIMER 0″,7);
Lcd8_Display(0xc0,”TIMER 1″,7);
TR0=1;
while(1)
{
Lcd8_Decimal3(0x88,xxx);
Lcd8_Decimal3(0xc8,zzz);
if(xxx>9){TR0=0;TR1=1;xxx=0;}
if(zzz>9){TR1=0;TR0=1;zzz=0;}
}
}
void timer0()interrupt 1
{
xx++;
if(xx>19){xxx++;xx=0;}
TH0=0x3c;TL0=0xaf;
}
void timer1()interrupt 3
{
zz++;
if(zz>19){zzz++;zz=0;}
TH1=0x3c;TL1=0xaf;
}
/********************************* MAIN PROGRAM END*************************************/
/*********************************LCD HEADER FILE START*************************************/
#define First_Line 0x80
#define Second_Line 0xc0
#define Curser_On 0x0f
#define Curser_Off 0x0c
#define Clear_Display 0x01
#define Data_Port P0
sbit Lcd_rs = P2^7;
sbit Lcd_rw = P2^6;
sbit Lcd_en = P2^5;
void Lcd8_Init();
void Lcd8_Command(unsigned char);
void Lcd8_Write(unsigned char,unsigned char);
void Lcd8_Display(unsigned char,const unsigned char*,unsigned int);
void Lcd8_Decimal2(unsigned char,unsigned char);
void Lcd8_Decimal3(unsigned char,unsigned char);
void Lcd8_Decimal4(unsigned char,unsigned int);
void Delay(unsigned int);
void del();
void Lcd8_Init()
{
Lcd8_Command(0x38); //to select function set
Lcd8_Command(0x06); //entry mode set
Lcd8_Command(0x0c); //display on
Lcd8_Command(0x01); //clear display
}
void Lcd8_Command(unsigned char com)
{
Data_Port=com;
Lcd_en=1;
Lcd_rs=Lcd_rw=0;
Delay(125);
Lcd_en=0;
Delay(125);
}
void Lcd8_Write(unsigned char com,unsigned char lr)
{
Lcd8_Command(com);
Data_Port=lr; // Data
Lcd_en=Lcd_rs=1;
Lcd_rw=0;
Delay(125);
Lcd_en=0;
Delay(125);
}
void Lcd8_Display(unsigned char com,const unsigned char *word,unsigned int n)
{
unsigned char Lcd_i;
for(Lcd_i=0;Lcd_i<n;Lcd_i++)
{
Lcd8_Write(com+Lcd_i,word[Lcd_i]);
}
}
void Lcd8_Decimal2(unsigned char com,unsigned char val)
{
unsigned int Lcd_hr,Lcd_t,Lcd_o;
Lcd_hr=val%100;
Lcd_t=Lcd_hr/10;
Lcd_o=Lcd_hr%10;
Lcd8_Write(com,Lcd_t+0x30);
Lcd8_Write(com+1,Lcd_o+0x30);
}
void Lcd8_Decimal3(unsigned char com,unsigned char val)
{
unsigned int Lcd_h,Lcd_hr,Lcd_t,Lcd_o;
Lcd_h=val/100;
Lcd_hr=val%100;
Lcd_t=Lcd_hr/10;
Lcd_o=Lcd_hr%10;
Lcd8_Write(com,Lcd_h+0x30);
Lcd8_Write(com+1,Lcd_t+0x30);
Lcd8_Write(com+2,Lcd_o+0x30);
}
/*void Lcd8_Decimal4(unsigned char com,unsigned int val)
{
unsigned int Lcd_th,Lcd_thr,Lcd_h,Lcd_hr,Lcd_t,Lcd_o;
val = val%10000;
Lcd_th=val/1000;
Lcd_thr=val%1000;
Lcd_h=Lcd_thr/100;
Lcd_hr=Lcd_thr%100;
Lcd_t=Lcd_hr/10;
Lcd_o=Lcd_hr%10;
Lcd8_Write(com,Lcd_th+0x30);
Lcd8_Write(com+1,Lcd_h+0x30);
Lcd8_Write(com+2,Lcd_t+0x30);
Lcd8_Write(com+3,Lcd_o+0x30);
} */
void Delay(unsigned int del)
{
while(del–);
}
void del()
{
Delay(65000);Delay(65000);
}
/*********************************LCD HEADER FILE END*************************************/