https://devzone.nordicsemi.com/f/nordic-q-a/6145/app_gpiote-twi-no-interrupt--My configuration: NRF51822 v2 TWI GPIOTE Issue: The gpio interrupt does not get triggered. I know that my twi device is changing the state of the gpio3, because my logic analyzer captured such transition. But some how the adlx345_event_handleren-USTelligent Community 13Mon, 23 Mar 2015 10:43:48 GMThttps://devzone.nordicsemi.com/thread/21523?ContentTypeID=1Mon, 23 Mar 2015 10:43:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2897d329-f8c1-413c-9339-7a988e68c624zeusminos<p>Thanks Krzysztof for your replay. I can not believe that I skip that one :-/. This is a good indication that I need to take a nice good sleep. Thanks again and apologize for such a silly question :-(.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/21522?ContentTypeID=1Mon, 23 Mar 2015 06:16:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ac9cac1c-7330-42be-8cb0-3e6040d89555Krzysztof Chruscinski<p>Following function require mask of pins and not pin number:</p> <blockquote> <p>err_code = app_gpiote_user_register(&amp;m_adxl345_irq_user_id, adxl345_irq_pin, adxl345_irq_pin, adlx345_event_handler);</p> </blockquote> <p>Must be changed to something like:</p> <blockquote> <p>err_code = app_gpiote_user_register(&amp;m_adxl345_irq_user_id, <strong>1 &lt;&lt; adxl345_irq_pin</strong>, <strong>1 &lt;&lt; adxl345_irq_pin</strong>, adlx345_event_handler);</p> </blockquote><div style="clear:both;"></div>