XL_as_gpio.ino

//sec 2017

void setup() {
  //Need to switch to internal LFCLK to disconnect from XL1 and XL2
  NRF_CLOCK->LFCLKSRC = 0; //disconnect XL1 AND XL2 FROM LFCLK
  NRF_CLOCK->EVENTS_LFCLKSTARTED = 0;
  NRF_CLOCK->TASKS_LFCLKSTART    = 1;
  while (NRF_CLOCK->EVENTS_LFCLKSTARTED == 0){}

  //now can use XL1 and XL2 as usual gpio
}

void loop() {}