direct manipulation port for DUE

Official Hardware Mega Due
2

Hello Mikistromar,
I don't understand exactly what you mean/want but here a sample sketch that manipulates (blinks) a bit (pin 13 or L) of a port (B).

uint32_t pin_13 = (1u << 27); // mask for pin 13

void setup()
{                  
  REG_PIOB_OER = pin_13; // pin 13 as output of port B
}

void loop()
{
    REG_PIOB_SODR = pin_13; // turns pin 13 on (set)
    delay(1000);         // wait for a second    
    REG_PIOB_CODR = pin_13; // turns pin 13 off (clear)
    delay(1000);         // wait for a second    
}

It is just about to find the port and mask of the pin that you want to manipulate. For example,
pin 2: mask= 25, port B.
pin 3: mask= 28, port C.
...
pin 36: Mask= 4, port C.
...
and so on. You can look for PORT PIN (pale yellow) of Graynomad's Arduino Due pinout diagram as a reference.
http://forum.arduino.cc/index.php?topic=132130.0
Good luck,

p