#include <avr/io.h>        
  #define mosi 5
  #define sck 7
  #define ss 4
  
  void execute( unsigned char cmd , unsigned char data)
  {
    portb &= ~(1<<ss);
    spdr = cmd;    
    while(!(spsr & (1<<spif)));    
    spdr = data;        
    while(!(spsr & (1<<spif)));    
    portb |= (1<<ss);
  }
  
  
  int main (void)
  {
    ddrb = (1<<mosi)|(1<<sck)|(1<<ss);
    spcr = (1<<spe)|(1<<mstr)|(1<<spr0);
  
    execute(0x09,0b00000010); 
    execute(0x0b,0x02);
    execute(0x0c,0x01);
    execute(0x01,0x3e);
    execute(0x02,0x02);
  
    while(1);
    return 0 ;
  }