Changing pin configurations for push button

[FabienBegni]

Hi all,

I am new on this forum looking for help. I programmed nRF51-DK using the ble_proximity example provided by the nRF5 SDK, I'm able to ring the phone by double pressing the button1 of the nRF51-DK now I want to do the same with the device we manufactured which has only one button (instead of 4 like the nRF51-DK) connected to the pin 18. Please note : The SOC used for my device is nRF51822 and the one used on the nRF51-DK is nRF51422.

How can i change the pin configuration of button 1 on the nrf51DK to pin number 18  for my device using nrf51822?

[HuanVH]

nrf_gpio_cfg_input

nrf_gpio_cfg_output

in %SDK%\components\drivers_nrf\hal\nrf_gpio.h