This document discusses interfacing with an LCD display using an AVR microcontroller. It includes the pin definitions and block diagrams for connecting the LCD to the microcontroller. It provides the timing diagrams for write and read modes. It also includes the function prototypes and macros used in the LCD library to initialize, clear, write characters and strings, and position the cursor on the LCD. At the end, it mentions some case studies and provides resources for example source code.

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INTERFACING
AVR

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DISKRIPSI
PIN

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Blok
Diagram

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Blok
Diagram

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DC
Karakteristik

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DC
Karakteristik
E> 500ns

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Write Mode
Timing Diagram

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Read Mode
Timing Diagram

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InstruksiLCD

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Format Data
A
scii?

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Inisialisasi LCD

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Inisialisasi LCD

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Inisialisasi LCD
4BITLCD
8BITLCD

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BAGAIMANA
PEMROGRAMANNYA ?

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Tambahkan #include lcd.h
Pada file utama
#include "lcd.h"
#include <util/delay.h>
int main(void)
{
lcd_init();
while(1)
{
lcd_gotoxy(0,0);lcd_putstr("hello
world");
_delay_ms(200);
lcd_clear();
}
return 0;
}
/LCD interface
#define PORT_LCD PORTB
#define DDR_LCD DDRB
#define RS PB0
#define RW PB1
#define EN PB2
#define DB4 PB4
#define DB5 PB5
#define DB6 PB6
#define DB7 PB7
Pastikan Koneksi antara
Board mikro dengan LCD
seperti Definisi PORT

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#define SETBIT(address,bit) (address |= (1<<bit))
#define CLRBIT(address,bit) (address &= ~(1<<bit))
#define SET_EN SETBIT(PORT_LCD,EN)
#define CLR_EN CLRBIT(PORT_LCD,EN)
#define SET_RS SETBIT(PORT_LCD,RS)
#define CLR_RS CLRBIT(PORT_LCD,RS)
#define SET_RW SETBIT(PORT_LCD,RW)
#define CLR_RW CLRBIT(PORT_LCD,RW)
// prototipe fungsi
void enable(void); // enable fulse for LCD
void lcd_init(void); // intialization LCD
void lcd_putchar(unsigned char c); // send character to LCD
void lcd_putstr(char *s); // send string to LCD
void lcd_clear(void); // clear display
void lcd_gotoxy(unsigned char i,unsigned char j); //move LCD cursor
position
Fungsi yang tersedia pada
LIBRARY LCD
Makro yang tersedia pada
LIBRARY LCD

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Import from Eclipse

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Import from Eclipse

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Import from Eclipse

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ImportfromEclipse

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ImportfromEclipse

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●avrlcd.sourceforge.net
●Lecturer.eepis-its.edu/~hendri
Source Code

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Jam: 12:12:12
Case Studies 1
ModeMode Set
Digtal Clock

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Jam: 00:22:12
Case Studies 2
ModeMode Set
Stopwatch