LCD Quellcode - Sonderbare Fehler !

#ifndef LCD_H_

#define LCD_H_

#ifndef F_CPU

#undef  F_CPU

#define F_CPU 16000000UL

#endif

#include <avr/io.h>

#include <util/delay.h>

#define BACKLIGHTDIR DDRB

#define BACKLIGTPORT PORTB

#define BL PORTB0        // PB0 - Back light VCC Pin

#define LCDPORT PORTD

#define LCDDIR DDRD

#define RS PORTD0        // PD0

#define EN PORTD1        // PD1

#define D4 PORTD4        // PD4

#define D5 PORTD5        // PD5

#define D6 PORTD6        // PD6

#define D7 PORTD7        // PD7

#define CMD_CLR      0x01  // Clear Display

#define CMD_HOME    0x02  // Display Home

#define CMD_FUNC_SET  0x28  // 4-Bit Mode, 2-Line Display, 5x8 character Font

#define CMD_ENTRYMODE  0x06  // Increment cursor, no Shift

#define CMD_LCD_OFF    0x08  // Display off, Cursor off, Blinking off

#define CMD_LCD_ON    0x0C  // Display on, Cursor off, Blinking off

#define CMD_CURS_ON    0x0E  // Display on, Cursor on, Blinking off

#define CMD_Blink_ON  0x0F  // Display on, Cursor on, Blinking on

void Backlight(unsigned int onoff);

void InitLCD(void);

void SendCMD(char cmd);

void LCD_Print (char *data);

void Send(char s);

void LCD_Clear(void);

#endif /* LCD_H_ */

#include "LCD.h"

void Backlight(unsigned int onoff)

{

  if (onoff == 1)

  BACKLIGTPORT |= (1 << BL);

  else

  BACKLIGTPORT &= ~ (1 << BL);

}

void InitLCD(void)

{

  BACKLIGHTDIR = 0b00000001;

  LCDDIR = 0b11111111;

  _delay_ms(20);

  SendCMD(CMD_FUNC_SET);

  SendCMD(CMD_ENTRYMODE);

  SendCMD(CMD_LCD_ON);

  SendCMD(CMD_CLR);

  SendCMD(CMD_HOME);

}

void SendCMD(char cmd)

{

  LCDPORT &= ~(1 << RS);

  Send(cmd);

  _delay_ms(2);

}

void LCD_Print(char *data)

{

  for (int i=0; data[i]!=0; i++)

  {  

    LCDPORT |= (1 << RS);

    Send(data[i]);

  }

}

void Send(char s)

{

  LCDPORT = (LCDPORT & 0x0F) | (s & 0xF0);

  LCDPORT |= (1 << EN);

  _delay_us(1);

  LCDPORT &= ~(1 << EN);

  _delay_us(200);

  LCDPORT = (LCDPORT & 0x0F) | (s << 4);

  LCDPORT |= (1 << EN);

  _delay_us(1);

  LCDPORT &= ~(1 << EN);

  _delay_us(200);

}

void LCD_Clear(void)

{

  SendCMD(CMD_CLR);

  SendCMD(CMD_HOME);

}