void setup() {
  // put your setup code here, to run once:
  volatile char *dirf;
  
  //volatile long i;
  dirf = 0x30; 
  *dirf = 0xFF; 

}

void loop() {
  // put your main code here, to run repeatedly:
  volatile char *outf;
  outf = 0x31;

  *outf = 0x3F;
  delay(1000);
  *outf = 0x06;
  delay(1000);
  *outf = 0x5B;
  delay(1000);
  *outf = 0x4F;
  delay(1000);
  *outf = 0x66;
  delay(1000);
  *outf = 0x6D;
  delay(1000);
  *outf = 0x7D;
  delay(1000);
  *outf = 0x07;
  delay(1000);
  *outf = 0x7F;
  delay(1000);
  *outf = 0x6F;
  delay(1000);

}