#define F_CPU 16000000UL

#include<avr/io.h>
#include<util/delay.h>

#define LCD_DATA PORTC

#define ctrl PORTC
#define en PC1
#define rw
#define rs PC0

void LCD_cmd(unsigned char cmd);
void init_LCD(void);
void LCD_write(unsigned char data);

int main()
{
DDRA=0xff;
init_LCD();
LCD_write_string(“Welcome”);
LCD_cmd(0xc0);
return 0;
}

void init_LCD(void)
{
LCD_cmd(0×28);
_delay_ms(1);

LCD_cmd(0x01);
_delay_ms(1);

LCD_cmd(0x0E);
_delay_ms(1);

LCD_cmd(0x80);
_delay_ms(1);
return;
}

void LCD_cmd(unsigned char cmd)
{
LCD_DATA=cmd;
ctrl =(0<<rs)|(1<<en);
_delay_ms(1);
ctrl =(0<<rs)|(0<<en);
_delay_ms(50);
return;
}

void LCD_write(unsigned char data)
{
LCD_DATA= data;
ctrl = (1<<rs)|(1<<en);
_delay_ms(1);
ctrl = (1<<rs)|(0<<en);
_delay_ms(50);
return ;
}

void LCD_write_string(unsigned char *str)
{
int i=0;
while(str[i]!=”)
{
LCD_write(str[i]);
i++;
}
return;
}