https://devzone.nordicsemi.com/f/nordic-q-a/120529/rv8263-c8-i2c-issuesHello everyone, I have a custom board with an nRF5340, which currently uses the internal clock. Im using toolchain v2.9.0 and SDK 2.9.0. I&#39;m trying to use the RV8263-C8 RTC to achieve accurate real-time tracking. Here is my schematic: My .dtsen-USTelligent Community 13Tue, 15 Apr 2025 12:33:49 GMThttps://devzone.nordicsemi.com/thread/531839?ContentTypeID=1Tue, 15 Apr 2025 12:33:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:df612d31-0179-4907-a32c-1b858a04edb1Luis Santos<p>The error occurred because the RV8236, which was initialized during system startup, was started too early. I needed to change the <code data-start="243" data-end="269">CONFIG_RTC_INIT_PRIORITY</code> to 90 (I haven&#39;t tested many other values &mdash; the default was 50), and now everything is working very well.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/531022?ContentTypeID=1Tue, 08 Apr 2025 12:39:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a441fc17-9b6f-41a3-9c75-aa3f4014eb53Sigurd Hellesvik<p>Hi,</p> <p>I suggest that you debug or log from <a href="https://github.com/nrfconnect/sdk-zephyr/blob/06c6605ca152de466718b0cb3f73ae7bba17e6ff/drivers/rtc/rtc_rv8263.c#L685">get_time</a> -&gt; <a href="https://github.com/nrfconnect/sdk-zephyr/blob/main/drivers/rtc/rtc_rv8263.c#L229">rv8263c8_time_get</a> to see exactly&nbsp; what returns an error here.</p> <p>Regards,<br />Sigurd Hellesvik</p><div style="clear:both;"></div>