//Program: SevenSegment_Project1.ino
//dp G F E D C B A
int displayTable[2] = {0b00000000,
                      0b01001001};
unsigned int *gpioOUT = (unsigned int *)(0xd0000000+0x010); 

void setup() {
  Serial1.begin(1152000);
  for(int i = 0;i<8;i++){ 
    pinMode(i, OUTPUT); //init GP0-7
  }
}

void loop() {
  *gpioOUT = displayTable[1]; 
  delay(1000);
  *gpioOUT = displayTable[0];
  delay(1000);
}