lcd interface with 8051 microcontroller in tamil | How to fix LCD positi...

code:-

LCD.h

sbit rs = P0^0;

sbit rw = P0^1;

sbit en = P0^2;

void delay(unsigned int dela)

   {

   unsigned int l,mm;

   for(mm=0;mm<100;mm++)

   for(l=0;l<dela;l++);

   } 

void lcdcmd(unsigned char cmd)

{

P2 = cmd;

rs = 0;

rw = 0;

en = 1;

delay(15);

en = 0;

delay(150);

}

void datawrt_lcd(unsigned char datas)

{

P2 = datas;

rs = 1;

rw = 0;

en = 1;

delay(15);

en = 0;

delay(150);

}

void display_lcd(unsigned int row, unsigned int colum, unsigned char *lcdstr)

{

if(row==1)

{

lcdcmd(0x80 + colum);

}

else if(row==2)

{

lcdcmd(0xc0 + colum);

}

    while (*lcdstr !='\0')

{

datawrt_lcd(*lcdstr);

lcdstr++;

}

}

void lcd_init()

{

lcdcmd(0x38);

lcdcmd(0x0C);

lcdcmd(0x01);  

lcdcmd(0x80);

}

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

main.c

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

#include<reg51.h>

#include "lcd.h"

void main()

{

lcd_init();

while(1)

{

display_lcd(1,4,"Hello World!");

}

}