#include<reg51.h>

#define LCD P1

unsigned int Count,d1,d2,d3,d4,x1,x2,x3,x4;

sbit Pulse	= P3^5;
sbit LED	= P3^7;
sbit rs		= P3^4;
sbit rw		= P3^3;
sbit en		= P3^2;

void LCDInit	(				);
void lcdcmd		(unsigned char	);
void lcdwrt		(unsigned char	);
void Delay		(unsigned int	);
void Convert	(unsigned int	);
void SerialTx	(unsigned char	);

void main(void)
{
	unsigned char z,Display;
	unsigned char code str1[]="  PULSE COUNTER  ";
	unsigned char code str2[]="    Design By    ";
	unsigned char code str3[]="    HIMANSHU     ";
	unsigned char code str4[]="     SHARMA      ";
	unsigned char code str5[]="PULSE: 0000      ";
	P0=0xFF;
	P1=0xFF;
	P2=0xFF;
	P3=0xFF;
	IE=0x00;

	Count=0x00;

//////////////////////sERIALIZATION DATA//////////////
	TMOD	= 0x20;
	TH1		= 0xFD;
	SCON	= 0x50;
	TR1		= 1;

	LED		= 0x00;	

	LCDInit();

   	for(z=0;z<16;z++)
	{
	
		Display=str1[z];
		lcdwrt(Display);
		Delay(1);
		SerialTx(Display);
		Delay(1);
	}
	
	SerialTx('\r');
	SerialTx('\n');	
	lcdcmd(0xC0);

   	for(z=0;z<16;z++)
	{
	
		Display=str2[z];
		lcdwrt(Display);
		Delay(1);
		SerialTx(Display);
		Delay(1);
	}
	Delay(200);

	SerialTx('\r');
	SerialTx('\n');
	lcdcmd(0x01);
	Delay(1);

for(z=0;z<16;z++)
	{
	
		Display=str3[z];
		lcdwrt(Display);
		Delay(1);
		SerialTx(Display);
		Delay(1);
	}
		
	SerialTx('\r');
	SerialTx('\n');	
	lcdcmd(0xC0);

   	for(z=0;z<16;z++)
	{
	
		Display=str4[z];
		lcdwrt(Display);
		Delay(1);
		SerialTx(Display);
		Delay(1);
	}
	Delay(200);

	SerialTx('\r');
	SerialTx('\n');
	lcdcmd(0x01);
	Delay(1);

	lcdcmd(0xC0);

   	for(z=0;z<16;z++)
	{
	
		Display=str5[z];
		lcdwrt(Display);
		Delay(1);
		SerialTx(Display);
		Delay(1);
	}
	Delay(70);

	SerialTx('\r');
	SerialTx('\n');

	while(1)
	{
		LED=1;		
		Delay(30);
		if(Pulse==0)
		{
			Count=Count+1;
			Convert(Count);
			if(Count==9999)
				Count=0x00;
		}
	}
}

void Convert(unsigned int value)
{
	x1 = value / 10;
	d1 = value % 10;
	
	x2 = x1 / 10;
	d2 = x1 % 10;
	
	x3 = x2 / 10;
	d3 = x2 % 10;							   
	
	d4 = x3 % 10;

	d1=d1|0x30;
	d2=d2|0x30;
	d3=d3|0x30;
	d4=d4|0x30;
	
	lcdcmd(0xC7);
	
	lcdwrt(d4);
	lcdwrt(d3);
	lcdwrt(d2);
	lcdwrt(d1);
	Delay(1);

	SerialTx(d4);
	SerialTx(d3);
	SerialTx(d2);
	SerialTx(d1);
	Delay(1);

	SerialTx('\r');
	SerialTx('\n');

	LED=0;
	Delay(30);
}

void LCDInit()
{
	lcdcmd(0x38);
	Delay(10);
	lcdcmd(0x0E);
	Delay(10);
	lcdcmd(0x01);
	Delay(10);
	lcdcmd(0x0C);
	Delay(10);
	lcdcmd(0x80);
	Delay(10);
	return;
}

void lcdcmd(unsigned char value)
{
	LCD=value;
	rs=0;
	rw=0;
	en=1;
	Delay(1);
	en=0;
	return;
}

void lcdwrt(unsigned char value)
{
	LCD=value;
	rs=1;
	rw=0;
	en=1;
	Delay(1);
	en=0;
	return;
}

void SerialTx(unsigned char value)
{
	SBUF = value;
	while(TI==0);
	TI = 0;
}

void Delay(unsigned int x)
{
	unsigned int i,j;
    for (i=0;i<=x;i++)
    for (j=0;j<=500;j++);
}