https://devzone.nordicsemi.com/f/nordic-q-a/46652/problem-gpiote-callback-issue-in-nrf51822Hello All, Greetings!!! I am working on nRF51822. I am used custom board. For reference i used nRF52 SDk 8.1.0 in IAR. Right now i am use gpio pin as an interrupt pin and initialized as like below, void gpiote_init() { uint32_t err_code; ifen-USTelligent Community 13Mon, 29 Apr 2019 10:45:41 GMThttps://devzone.nordicsemi.com/thread/184265?ContentTypeID=1Mon, 29 Apr 2019 10:45:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:84d78ea3-6b7e-4625-ad3c-00e1739c67e7H&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> <p>&nbsp;</p> <p>[quote user=""][/quote]</p> <p>nrf_drv_gpiote_in_config_t config_in = GPIOTE_CONFIG_IN_SENSE_LOTOHI(true);<br /> //nrf_drv_gpiote_in_config_t config_in1 = GPIOTE_CONFIG_IN_SENSE_HITOLO(true);</p> <p>config_in.pull = NRF_GPIO_PIN_PULLUP;</p> <p></p> <p>In this configuration, it assumes that your button is active low. Is that the case? If not, you should configure the .pull = NRF_GPIO_PIN_PULLDOWN;</p> <p>&nbsp;&nbsp;</p> [quote user=""]rpm_pin[/quote] <p>What GPIO is this? Have you ensured that no other module/driver in your system uses the same GPIO?</p> <p>&nbsp;</p> <p>Kind regards,</p> <p>Håkon&nbsp;</p><div style="clear:both;"></div>