https://devzone.nordicsemi.com/f/nordic-q-a/122179/st25dv64kc-i2c-communication-failure-on-nrf54l15-dkI am developing a project using the nRF54L15 DK to interface with an ST25DV64KC NFC tag (specifically the Class 3 or Class 6 daughterboard from the ST25DV64KC-DISCO kit). My goal is to initialize the ST25DV64KC tag via I2C, write a Capability Containeren-USTelligent Community 13Wed, 11 Jun 2025 20:44:13 GMThttps://devzone.nordicsemi.com/thread/538902?ContentTypeID=1Wed, 11 Jun 2025 20:44:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:97ee1f54-bd82-42f9-aca8-c8ab76337a02Hieu<p>Hello Halohawk,</p> <p>Please refer to the Instances and Configurations section of <a href="https://docs.nordicsemi.com/bundle/ps_nrf54L15/page/gpiote.html#d737e359">GPIOTE</a> and <a href="https://docs.nordicsemi.com/bundle/ps_nrf54L15/page/twim.html#d1667e522">TWIM</a> peripherals, they unfortunately don&#39;t work on Port 2. This is because, unlike nRF51 through nRF53 devices, the nRF54L devices have the concept of power domain, and port 2 is a special case. Please refer to <a href="https://docs.nordicsemi.com/bundle/ps_nrf54L15/page/gpio.html#ariaid-title4">the Port capabilities section in the GPIO documentation</a>.</p> <p>May I ask, do the drivers not generate any error at all?</p> <p>Could you please share with me the full log?</p> <p>Hieu</p><div style="clear:both;"></div>