https://devzone.nordicsemi.com/f/nordic-q-a/8975/nrf52-interruptfor nrf52, are all the GPIO pins able to be configured as interrupt even including reset pin(p0.21)?en-USTelligent Community 13Mon, 31 Aug 2015 06:57:15 GMThttps://devzone.nordicsemi.com/thread/33037?ContentTypeID=1Mon, 31 Aug 2015 06:57:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b530b33e-7f9b-44f9-a86e-dd7b05625aafMichael Dietz<p>The reset pin can&#39;t be used as a GPIO when it is enabled. When the reset pin isn&#39;t enabled it can be used like any normal GPIO pin. And all GPIO pins can be configured as interrupts.</p> <p>From the infocenter: &quot;Important: Pin reset can be enabled by defining the CONFIG_GPIO_AS_PINRESET variable in the project settings. This can be done by defining the preprocessor symbol in Keil, go to: Project – Options for Target – C/C++ – Preprocessor Symbols – Define. Here you can add the CONFIG_GPIO_AS_PINRESET variable after NRF52.&quot;</p> <p>-Mike</p><div style="clear:both;"></div>