Program for LCD interface with 8051

#include<REGX51.H>

#include<stdio.h>

sfr ldata=0x90;

sbit rs=P2^0;

sbit rw=P2^1;

sbit en=P2^2;

void delay(int a);

void lcdcmd(unsigned char value);

void lcddata(unsigned char value);

void lcdcmd(unsigned char value)

{

ldata=value;

rs=0;

rw=0;

en=1;

delay(2);

en=0;

return;

}

void lcddata(unsigned char value)

{

ldata=value;

rs=1;

rw=0;

en=1;

delay(2);

en=0;

return;

}

void delay(int a)

{

unsigned int i,j;

for(i=0;i<=100;i++)

{

for(j=0;j<=10*a;j++)

{

}}}

void main()

{

P1=0x00;

lcdcmd(0x38);

delay(2);

lcdcmd(0x0E);

delay(2);

lcdcmd(0x01);

delay(2);

lcdcmd(0x06);

delay(2);

while(1)

{

lcdcmd(0x82);

delay(10);

lcddata(‘T’);

delay(10);

lcddata(‘E’);

delay(10);

lcddata(‘C’);

delay(10);

lcddata(‘H’);

delay(10);

lcddata(‘F’);

delay(10);

lcddata(‘O’);

delay(10);

lcddata(‘R’);

delay(10);

lcddata(‘M’);

delay(10);

lcddata(‘E’);

delay(10);

lcddata(‘R’);

delay(10);

lcddata(‘S’);

delay(10);

lcdcmd(0xC2);

delay(10);

lcddata(‘T’);

delay(10);

lcddata(‘E’);

delay(10);

lcddata(‘C’);

delay(10);

lcddata(‘H’);

delay(10);

lcddata(‘N’);

delay(10);

lcddata(‘O’);

delay(10);

lcddata(‘L’);

delay(10);

lcddata(‘O’);

delay(10);

lcddata(‘G’);

delay(10);

lcddata(‘I’);

delay(10);

lcddata(‘E’);

delay(10);

lcddata(‘S’);

delay(10);

}}