https://devzone.nordicsemi.com/f/nordic-q-a/45130/nrf52832-systme-off-power-influenceHi, I am using nrf52832 to achieve system-off with low power consumption. Nrf52832 and a rf IC communicate via SPI. I configured a pin as the wake pin. nrf_gpio_cfg_sense_input(11, NRF_GPIO_PIN_PULLDOWN, NRF_GPIO_PIN_SENSE_HIGH); and Call NRF_POWERen-USTelligent Community 13Thu, 21 Mar 2019 01:53:02 GMThttps://devzone.nordicsemi.com/thread/177465?ContentTypeID=1Thu, 21 Mar 2019 01:53:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8384bc75-b3b1-42ca-9b1d-5e165d585e37tangyu<p><em><span class="skip">thank you for the response.<span>After modification, it runs normally.<span class="transSent">Other pins are used as interrupt pins and wake pins are not used as interrupts.</span><span class="transSent">What I do is I initialize the wake pin as normal input IO and pull it down.</span><span class="transSent">Configure it as nrf_gpio_cfg_sense_input before going to sleep.</span></span></span></em></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/177386?ContentTypeID=1Wed, 20 Mar 2019 14:36:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2ba48442-7f9b-491d-a393-389a2b4ef9e9Stian R&#248;ed Hafskjold<p>When the chip wakes up from system OFF, it starts in a reset state.</p> <p>If you attach 3.3V to the wakeup pin you should disable the sensing and pulldown resistor when you are in system ON mode. Then configure the sensing and pull down right before going to system OFF and after you have removed the 3.3V from the wakeup pin. Have you configured any interrupts on the PORT event?</p><div style="clear:both;"></div>