#include <avr/io.h>
#define F_CPU 1000000UL
#include <util/delay.h>

#define RS 6
#define E  5

void send_a_command (unsigned char command);
void send_a_character(unsigned char character);

int main(void)
{
	DDRA = 0xFF;
	DDRD = 0xFF;
	_delay_ms(50);
	send_a_command(0x01);// sending all clear command
	send_a_command(0x38);// 16*2 line LCD
	send_a_command(0x0E);// screen and cursor ON

	send_a_character (0x45); // ASCII(American Standard Code for Information Interchange) code for 'E'
	_delay_ms(10000);
	send_a_character (0x6E); // ASCII(American Standard Code for Information Interchange) code for 'n'
	send_a_character (0x74); // ASCII(American Standard Code for Information Interchange) code for 't'
	send_a_character (0x65); // ASCII(American Standard Code for Information Interchange) code for 'e'
	send_a_character (0x72); // ASCII(American Standard Code for Information Interchange) code for 'r'
	send_a_character (0x20); // ASCII(American Standard Code for Information Interchange) code for ' '
	send_a_character (0x43); // ASCII(American Standard Code for Information Interchange) code for 'C'
	send_a_character (0x6F); // ASCII(American Standard Code for Information Interchange) code for 'o'
	send_a_character (0x64); // ASCII(American Standard Code for Information Interchange) code for 'd'
	send_a_character (0x65); // ASCII(American Standard Code for Information Interchange) code for 'e'
	send_a_character (0x3A); // ASCII(American Standard Code for Information Interchange) code for ':'

}

void send_a_command (unsigned char command)
{
	PORTA=command;
	PORTD&= ~(1<<RS);
	PORTD|= (1<<E);
	_delay_ms(50);
	PORTD&= ~(1<<E);
	PORTA =0;
}

void send_a_character (unsigned char character)
{
	PORTA=character;
	PORTD|= (1<<RS);
	PORTD|= (1<<E);
	_delay_ms(50);
	PORTD&= ~(1<<E);
	PORTA =0;
}