LCD Programming

[Vicky]

Can anyone suggest me a complete tutorial for LCD Programming with any microcontroller………………..

[nidhin.k]

 

 

/********************************* MAIN PROGRAM START*************************************/

 

#include<reg51.h>

#include”lcd8.h”

unsigned char xx,xxx,zz,zzz;

void main()

{

EA=1;

TMOD=0x11;

ET0=1;ET1=1;

TH0=0x3c;TL0=0xaf;

TH1=0x3c;TL1=0xaf;

Lcd8_Init();

Lcd8_Display(0x80,”TIMER 0″,7);

Lcd8_Display(0xc0,”TIMER 1″,7);

TR0=1;

while(1)

{

 Lcd8_Decimal3(0x88,xxx);

 Lcd8_Decimal3(0xc8,zzz);

 if(xxx>9){TR0=0;TR1=1;xxx=0;}

 if(zzz>9){TR1=0;TR0=1;zzz=0;}

}

}

void timer0()interrupt 1

{

xx++;

if(xx>19){xxx++;xx=0;}

    TH0=0x3c;TL0=0xaf;

}

void timer1()interrupt 3

{

zz++;

if(zz>19){zzz++;zz=0;}

    TH1=0x3c;TL1=0xaf;

}

 

 

/********************************* MAIN PROGRAM END*************************************/

 

 

 

/*********************************LCD HEADER FILE START*************************************/

 

#define First_Line 0x80

#define Second_Line 0xc0

#define Curser_On  0x0f

#define Curser_Off 0x0c

#define Clear_Display 0x01

#define Data_Port P0

 

sbit Lcd_rs = P2^7;

sbit Lcd_rw = P2^6;

sbit Lcd_en = P2^5;

 

void Lcd8_Init();

void Lcd8_Command(unsigned char);

void Lcd8_Write(unsigned char,unsigned char);

void Lcd8_Display(unsigned char,const unsigned char*,unsigned int);

void Lcd8_Decimal2(unsigned char,unsigned char);

void Lcd8_Decimal3(unsigned char,unsigned char);

void Lcd8_Decimal4(unsigned char,unsigned int);

void Delay(unsigned int);

void del();

void Lcd8_Init()

{

Lcd8_Command(0x38); //to select function set

Lcd8_Command(0x06); //entry mode set

Lcd8_Command(0x0c); //display on

Lcd8_Command(0x01); //clear display

}

 

void Lcd8_Command(unsigned char com)

{

Data_Port=com;

Lcd_en=1;

Lcd_rs=Lcd_rw=0;

Delay(125);

Lcd_en=0;

Delay(125);

}

 

void Lcd8_Write(unsigned char com,unsigned char lr)

{

Lcd8_Command(com);

 

Data_Port=lr; // Data 

Lcd_en=Lcd_rs=1;

Lcd_rw=0;

Delay(125);

Lcd_en=0;

Delay(125);

}

 

void Lcd8_Display(unsigned char com,const unsigned char *word,unsigned int n)

{

unsigned char Lcd_i;

 

for(Lcd_i=0;Lcd_i<n;Lcd_i++)

{ 

Lcd8_Write(com+Lcd_i,word[Lcd_i]);

  }

}

 

void Lcd8_Decimal2(unsigned char com,unsigned char val)

{

unsigned int Lcd_hr,Lcd_t,Lcd_o;

 

Lcd_hr=val%100;

Lcd_t=Lcd_hr/10;

Lcd_o=Lcd_hr%10;

 

Lcd8_Write(com,Lcd_t+0x30);

Lcd8_Write(com+1,Lcd_o+0x30);

}

 

 

void Lcd8_Decimal3(unsigned char com,unsigned char val)

{

unsigned int Lcd_h,Lcd_hr,Lcd_t,Lcd_o;

 

Lcd_h=val/100;

Lcd_hr=val%100;

Lcd_t=Lcd_hr/10;

Lcd_o=Lcd_hr%10;

 

Lcd8_Write(com,Lcd_h+0x30);

Lcd8_Write(com+1,Lcd_t+0x30);

Lcd8_Write(com+2,Lcd_o+0x30);

}

 

/*void Lcd8_Decimal4(unsigned char com,unsigned int val) 

{

unsigned int Lcd_th,Lcd_thr,Lcd_h,Lcd_hr,Lcd_t,Lcd_o;

 

val = val%10000;

Lcd_th=val/1000;

Lcd_thr=val%1000;

Lcd_h=Lcd_thr/100;

Lcd_hr=Lcd_thr%100;

Lcd_t=Lcd_hr/10;

Lcd_o=Lcd_hr%10;

 

Lcd8_Write(com,Lcd_th+0x30);

Lcd8_Write(com+1,Lcd_h+0x30);

 

Lcd8_Write(com+2,Lcd_t+0x30);

Lcd8_Write(com+3,Lcd_o+0x30);

}  */

 

void Delay(unsigned int del)

{

while(del–);

}

 

void del()

{

Delay(65000);Delay(65000);

}

 

 

/*********************************LCD HEADER FILE END*************************************/

 

[shivani sura]

while(1)

{

 Lcd8_Decimal3(0x88,xxx);

 Lcd8_Decimal3(0xc8,zzz);

 if(xxx>9){TR0=0;TR1=1;xxx=0;}

 if(zzz>9){TR1=0;TR0=1;zzz=0;}

}

}

void timer0()interrupt 1

{

xx++;

if(xx>19){xxx++;xx=0;}

    TH0=0x3c;TL0=0xaf;

}

void timer1()interrupt 3

{

zz++;

if(zz>19){zzz++;zz=0;}

    TH1=0x3c;TL1=0xaf;

}Can any

[shivani sura]

Can any one explain this please

[shivani sura]

It is in above lcd
program..
please someone
explain this…

[AJISH ALFRED]

Hi all,

From the home page of this site, navigate to EG LABS >> MICROCONTROLLER and find projects done on different microcontrollers in which there is an example of LCD interfacing with each and every microcontroller with maximum details.

[shivani sura]

Eye blink sensor for
accident Prevention-for this
can anyone provide me the complete
source code please

[SHAH DISHANT H.]

Hi,

 

Go through EG LABS>> MICROCONTROLLER>> ARM7

 

You will find the perfect solution…!!!

[Author]

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