Microcontroller Projects

graphical-lcd-with-89c51-microcontroller.c

#include<reg51.h>
sbit rs=P3^0;  //GLCD control pins
sbit rw=P3^1;
sbit en=P3^2;
sbit cs1=P3^3;
sbit cs2=P3^4;
sbit re=P3^5; 

void delay(unsigned int d){  //random delay generation 
unsigned int i,j;
for(i=0;i< d;i++)
for(j=0;j<5;j++);
}

void lcdcmd(char value){  //sending commands to glcd
P1=value;
rw=0;
rs=0;
en=0;
delay(300);
en=1;
delay(300);
en=0;
}

lcddata(char data1) //Sending data to glcd
{
P1=data1;
rw=0;
rs=1;
en=0;
delay(300);
en=1;
delay(300);
en=0;
}



void main(){

cs1=1;   //GLCD first half is selected
cs2=0;   //GLCD second half OFF
re=1;    //GLCD reset OFF

lcdcmd(0x3F);    //Display on for first GLCD half
lcdcmd(0x40);    //Setting y-address
lcdcmd(0xBB);    //Setting x-address, page 3 is selected
lcdcmd(0xC0);    //start line
 
delay(3000);

lcddata(0x00);	  //M
lcddata(0xFD);
lcddata(0xFB);
lcddata(0xF7);
lcddata(0xFB);
lcddata(0xFD);
lcddata(0x00);
lcddata(0xFF);    //M

lcddata(0x0D);	//i
lcddata(0xFF);

lcddata(0xC7);	//c
lcddata(0xBB);
lcddata(0x7D);
lcddata(0x7D);	//c
lcddata(0xFF);

lcddata(0x01);	//r
lcddata(0xF7);
lcddata(0xFB);
lcddata(0xFD);	//r
lcddata(0xFF);

lcddata(0xC3);	//o
lcddata(0x3D);
lcddata(0x3D);
lcddata(0xC3);	//o
lcddata(0xFF);

lcddata(0xC7);	//c
lcddata(0xBB);
lcddata(0x7D);
lcddata(0x7D);	//c
lcddata(0xFF);

lcddata(0xC3);	//o
lcddata(0x3D);
lcddata(0x3D);
lcddata(0xC3);	//o
lcddata(0xFF);

lcddata(0x01);	//n
lcddata(0xF7);
lcddata(0xF7);
lcddata(0x07);	//n
lcddata(0xFF);


lcddata(0xF7);	//t
lcddata(0x01);
lcddata(0x67);
lcddata(0x7F);	  //t
lcddata(0xFF);

lcddata(0x01);	//r
lcddata(0xF7);
lcddata(0xFB);
lcddata(0xFD);	//r
lcddata(0xFF);

lcddata(0xC3);	//o
lcddata(0x3D);
lcddata(0x3D);
lcddata(0xC3);	//o
lcddata(0xFF);

lcddata(0x01);	//l
lcddata(0x01);
lcddata(0xFF);	//l

lcddata(0x01);	//l
lcddata(0x01);
lcddata(0xFF);	//l

lcddata(0xC7);	//e
lcddata(0xAB);
lcddata(0x75);

cs1=0;          //GLCD first half off
cs2=1;          //GLCD second half Selected

lcdcmd(0x3F);    //Display on for second half
lcdcmd(0x40);    //Setting y-address
lcdcmd(0xBB);    //Setting x-address, page 3 is selected
lcdcmd(0xC0);    //start line

lcddata(0x79);	//e
lcddata(0xFF);

lcddata(0x01);	//r
lcddata(0xF7);
lcddata(0xFB);
lcddata(0xFD);	//r
lcddata(0xFF);


lcddata(0xF7);	//-
lcddata(0xF7);
lcddata(0xF7);	//-
lcddata(0xFF);

lcddata(0x01);	//p
lcddata(0xED);
lcddata(0xED);
lcddata(0xF3);	//p
lcddata(0xFF);


lcddata(0x01);	//r
lcddata(0xF7);
lcddata(0xFB);
lcddata(0xFD);	//r
lcddata(0xFF);


lcddata(0xC3);	//o
lcddata(0x3D);
lcddata(0x3D);
lcddata(0xC3);	//o
lcddata(0xFF);

lcddata(0xBF);	//j
lcddata(0x7F);
lcddata(0x05);	//j
lcddata(0xFF);

lcddata(0xC7);	//e
lcddata(0xAB);
lcddata(0x75);
lcddata(0x79);	//e
lcddata(0xFF);

lcddata(0xC7);	//c
lcddata(0xBB);
lcddata(0x7D);
lcddata(0x7D);	//c
lcddata(0xFF);

lcddata(0xF7);	//t
lcddata(0x01);
lcddata(0x67);
lcddata(0x7F);	  //t
lcddata(0xFF);

lcddata(0x9F);	  //.
lcddata(0x9F);	  //.
lcddata(0xFF);

lcddata(0xC7);	//c
lcddata(0xBB);
lcddata(0x7D);
lcddata(0x7D);	//c
lcddata(0xFF);

lcddata(0xC3);	//o
lcddata(0x3D);
lcddata(0x3D);
lcddata(0xC3);	//o
lcddata(0xFF);

lcddata(0x01);	//m
lcddata(0xFD);
lcddata(0x01);
lcddata(0xFD);
lcddata(0x01);	//m
lcddata(0xFF);

   while(1);     //Remain for ever here
}