[kunal]

 

#include<reg51.h>

#define port P3            //14,13,12,11 pins of lcd and 1.7,1.6,1.5,1.4 of controller

 

#define lcdport P1

sbit rs = port^0;

sbit rw = port^1;

sbit en = port^2;

 

void lcd_ini();

void dis_cmd(unsigned char);

void dis_data(unsigned char);

void lcdcmd(unsigned char);

void lcddata(unsigned char);

void Delay_ms(unsigned int msec) ;

 

void main()

{

unsigned char data0[]=”rocks”;

unsigned int i=0;

lcdport=0;

 

lcd_ini();

while(data0!=’’)

{

dis_data(data0);

Delay_ms(20);

i++;

}

}

void lcd_ini()                    

{

dis_cmd(0x02);

dis_cmd(0x28);

dis_cmd(0x0C);

dis_cmd(0x06);

dis_cmd(0x80);

}

 

void dis_cmd(unsigned char cmd_value)

{

unsigned char cmd_value1;

cmd_value1 = (cmd_value & 0xF0);

lcdcmd(cmd_value1);

cmd_value1 = ((cmd_value<<4) & 0xF0);

lcdcmd(cmd_value1);

}

 

 

void dis_data(unsigned char data_value)

{

unsigned char data_value1;

data_value1=(data_value&0xF0);

lcddata(data_value1);

data_value1=((data_value<<4)&0xF0);

lcddata(data_value1);

}

 

void lcdcmd(unsigned char cmdout)

{

lcdport=cmdout;

rs=0;

rw=0;

en=1;

Delay_ms(10);

en=0;

}

 

void lcddata(unsigned char dataout)

{

lcdport=dataout;

rs=1;

rw=0;

en=1;

Delay_ms(10);

en=0;

}

  void Delay_ms(unsigned int msec) 

{

int i,j ;

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

  for(j=0;j<1100;j++);

  }

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