Custom pcb, need design and code input for non-working design.

[n4alpaca]

Hello, I've gone and borrowed the reference design for atmels SAMS70j21. My board is built from their application diagrams for this particular microcontroller. I've tried to upload an LED Blinky program I've written and it fails to blink my working LED (I've checked). I've checked the power source (working). All I have in the way of test equipment is a cheap multimeter.
I'm using Atmel studios with jlink and the code seems to upload no problem. All the wires and outputs are the right ones.
I've attached the schematic and physical layout in a PDF, i will attach the Gerbers of I'm asked.
Here is my code:

board_init();
    pio_set_output(PIOD, PIO_PD22, LOW, DISABLE,ENABLE);
    pio_set_input(PIOD, PIO_PD21, 0);
    // set PA13 as pulldown
    PIOA->PIO_PPDDR = PIO_PD21;
 
    while(1){
        int z = pio_get(PIOD,PIO_INPUT,PIO_PD21);
        if(z){
            pio_set_pin_high(PIO_PD22);
        }
        else
            pio_set_pin_low(PIO_PD22);
    }

 

[PCB Designers]

Dear Member,

What is your actual need ?

I can help you in designing PCB Board.

Regards,
Maqbool