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

#define LCDDR_RS DDRA
#define LCDDR_E DDRD
#define LCDDR_D DDRC
#define LCDPORT_RS PORTA
#define LCDPORT_E PORTD
#define LCDPORT_D PORTC
#define LCD_E PD6
#define LCD_RS PA2


void enable()
{
    LCDPORT_E |= (1<<LCD_E);
    _delay_us(1);
    LCDPORT_E &= ~(1<<LCD_E);
    _delay_us(4000);
}

void init()
{
    _delay_ms(15);
    LCDDR_RS |= (1<<LCD_RS);
    LCDDR_E |= (1<<LCD_E);
    LCDDR_D = 0b11110000;

    LCDPORT_D = 0x30;
    enable();
    enable();
    enable();

    LCDPORT_D =0x20;
    enable();

    LCDPORT_D = 0x20;
    enable();
    LCDPORT_D = 0x80;
    enable();

    LCDPORT_D = 0x00;
    enable();
    LCDPORT_D = 0x10;
    enable();

    LCDPORT_D = 0x00;
    enable();
    LCDPORT_D = 0xc0;
    enable();

}



int main()
{
    init();
    //Zeichen A ausgeben 0x41
    LCDPORT_D = 0x40;
    LCDPORT_RS |= (1<<LCD_RS);
    enable();
    LCDPORT_D = 0x10;
    LCDPORT_RS |= (1<<LCD_RS);
    enable();

    PORTA =0;
    PORTB =0;
    PORTC =0;
    PORTD =0;

    while(1)
    {


    };

    return 0;
}