void setup() {
  // put your setup code here, to run once:
  volatile char *dir,*outf,*outk;
  dir = 0x30;
  *dir = 0xff;
  dir = 0x107;
  *dir = 0xff;

  outf = 0x31;
  outk = 0x108;

  while(1)
  {
    *outf = 0x06;
    *outf = 0x4f;
  }
  
}

void loop() {
  // put your main code here, to run repeatedly:

}