#define F_CPU 1000000UL                        //Controller Taktfrequenz

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



#define Set_Com_End_H                 0xF1                    
#define Set_Com_End_L                 0x67
#define Set_LCD_Mapping_Control       0xC0
#define Set_Scroll_Line_LSB           0x40
#define Set_Scroll_Line_MSB           0x50
#define Set_Panel_Loading             0x2B
#define Set_LCD_Bias_Ratio            0xEB
#define Set_Vbias_Potentiometer_H     0x81
#define Set_Vbias_Potentiometer_L     0x5F
#define Set_RAM_Address_Control       0x89
#define Set_Display_Enable            0xAF


#define System_Reset                  0xE2




void waitus(void)                        //warten Fkt
{
  _delay_us(10);
}

void SPI_Master_Init(void)                        //ISP Initialisierungs Funktion
{   

SPCR = (1<<SPE)|(1<<MSTR)|(1<<SPR1)|(1<<CPOL)|(1<<CPHA);      

}


void SPI_Senden(char cData)                        //SPI Senden Funktion
{

  PORTB &= ~(1<<PB2);			//LOW = command (High=data)

  waitus();	

  SPDR = cData;
  while(!(SPSR & (1<<SPIF)));

  waitus();

  PORTB |= (1<<PB2);			//HIGH

  waitus();	

   
}




void DOGXL160_Init(void)
{  
 
  SPI_Senden(Set_Com_End_H);  
  
  SPI_Senden(Set_Com_End_L);  
  
  SPI_Senden(Set_LCD_Mapping_Control);  
  
  SPI_Senden(Set_Scroll_Line_LSB);  
   
  SPI_Senden(Set_Scroll_Line_MSB);  
    
  SPI_Senden(Set_Panel_Loading);  
    
  SPI_Senden(Set_LCD_Bias_Ratio);  
  
  SPI_Senden(Set_Vbias_Potentiometer_H);  
    
  SPI_Senden(Set_Vbias_Potentiometer_L);  
    
  SPI_Senden(Set_RAM_Address_Control);  
    
  SPI_Senden(Set_Display_Enable);  
  
}


//Hauptprogramm

int main (void)                              
{  

 
  _delay_ms(10);
  
  DDRB = 0b00101100; 	//PB3 --> SCK, PB2 --> CD, PB5 --> MOSI (alle Ausgang)
                          
    


  SPI_Master_Init();                          //SPI initialisieren   
   
                            
  SPI_Senden(System_Reset);  
                            
  _delay_ms(10);
                        
  DOGXL160_Init();                          //Display initialisieren


  //Hauptschleife

  while(1)

  {    
  
	DDRC  = 0xff;	//AUSGANG
    PORTC=0b10111111;	//LED

  }
  
  return 0;
  
}