secure rf communication

#include<REG51.h>			//LCD DATA P1    RS= P2.0,RW=P2.1,EN=P2.2
void DELAY(int);
unsigned char ASCII(unsigned char);	//funtion to convert hex to ascii	
void LCD_COMMAND(unsigned char);
void LCD_DATA(unsigned char);
void LCD_STRING(unsigned char *VAR)
{
 	while(*VAR)
	LCD_DATA(*VAR++);

}


void main()
{

TMOD=0X22;
TH1=0X00;
SCON=0X50;
LCD_COMMAND(0X38);
LCD_COMMAND(0X0C);
DELAY(100);
while(1)
{




}



void DELAY(int C)
{
TF0=0;
TR0=1;
for(I=0;I<C;I++)
{						
while(TF0==0);
TF0=0;
}
}

void LCD_COMMAND(unsigned char DATA)
{
P1=DATA;
P2_0=0;
P2_1=0;
P2_2=0;
P2_2=1;
DELAY(60);
P2_2=0;
}

void LCD_DATA(unsigned char DATA)
{
P1=DATA;
P2_0=1;
P2_1=0;
P2_2=0;
P2_2=1;
DELAY(60);
P2_2=0;

}
 unsigned char ASCII( unsigned char temp)
	{
	if(temp>0x09)
	{
	temp=temp+0x07;
	}
	temp=temp+0x30;
	return(temp);
	}