#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 ;
}