https://devzone.nordicsemi.com/f/nordic-q-a/99757/bunch-of-bugs-in-register-definitions-in-st25r3911b_reg-hI am not sure if forums are the right way to report it, but I did&#39;t find anything better. This file: https://github.com/nrfconnect/sdk-nrf/blob/main/lib/st25r3911b/st25r3911b_reg.h contains number of mistakes. Some examples: https://github.comen-USTelligent Community 13Thu, 25 May 2023 15:14:32 GMThttps://devzone.nordicsemi.com/thread/427585?ContentTypeID=1Thu, 25 May 2023 15:14:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e7278120-6848-497b-baea-ee0f491f5eb9submargin<p>By the way, <a href="https://github.com/nrfconnect/sdk-nrf/blob/5b40f6be70d5691662c345a9058469f1848980e7/lib/st25r3911b/st25r3911b_common.c#L34">this one</a> is also wrong: should be 1000. I.e. &quot;measure_voltage&quot; results are always wrong (which can even lead to driver using 5V mode instead of 3.3V mode - when real voltage is e.g. 3.2, the measure voltage will return approximately 3650).</p><div style="clear:both;"></div>