void setup() {
  // put your setup code here, to run once:
  volatile char *dir;
  // PORT F
  dir = (char*)0x30;
  *dir = 0xFF;
  // PORT K
  dir = (char *)0x107;
  *dir = 0xFF;
}

void loop() {
  // put your main code here, to run repeatedly:
  // PORT F
  volatile char *out;
  out = (char *)0x31;
  *out = 0x5B;   // 0101 1011   4B
  // PORT K
  out = (char *)0x108;
  *out = 0x6D;  //0 1 1 0   1 1 0 1    5C
}

          
          //0x4F