Exp.2: LCD interfacing with PIC18F controller

CODE

#include <p18f4550.h>

#define EN LATAbits.LA1

#define RS LATAbits.LA0

#define LCD LATB

void delay(unsigned int time)

{

unsigned int i , j ;

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

for(j=0;j<1000; j++);

}

void LCDcommand(unsigned char command)

{

RS = 0; // RS low : Instruction

LCD = command;

EN = 1; // EN High

delay(10);

EN = 0; // EN Low

delay(10);

}

void LCDdata(unsigned char data)

{

RS = 1; // RS HIGH : DATA

LCD = data;

EN = 1; // EN High

delay(10);

EN = 0; // EN Low; data sampled at EN falling edge

delay(10);

}

void main(void)

{ ADCON1 = 0x0F;

TRISB = 0x00; //set data port as output

TRISAbits.RA0 = 0; //RS pin

TRISAbits.RA1 = 0; // EN pin

unsigned char *String1 = " Embeddedsystem";

LCDcommand(0x38); //8 bit mode, 2 line,5x7 dots

LCDcommand(0x06); // entry mode

LCDcommand(0x0C); //Display ON cursor OFF

LCDcommand(0x01); //Clear display

LCDcommand(0x80); //set address to 1st line

while(*String1)

{

LCDdata(*String1);

String1++;

}

while(