https://devzone.nordicsemi.com/f/nordic-q-a/122265/nrf5_sdk_16-double-float-mismatch-bug-in-nrf_log_internal_module-and-nrf_fprintf_fmtThe functions “ nrf_log_frontend_std_...() ” called by “ NRF_LOG_INTERNAL_MODULE(...) ” use only 4-byte (uint32_t) arguments, which is not suitable for arguments of type “double”. (See: \components\libraries\log\src\nrf_log_frontend.c) And further, whenen-USTelligent Community 13Mon, 16 Jun 2025 13:30:00 GMThttps://devzone.nordicsemi.com/thread/539400?ContentTypeID=1Mon, 16 Jun 2025 13:30:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a610bd9d-4e1a-481b-9ca6-495f8e1ad153dwm<p>Thanks for your support, Vidar. <br />Didn&#39;t know about the <strong>NRF_LOG_FLOAT_MARKER</strong>() / <strong>NRF_LOG_FLOAT</strong>() macros. I don&#39;t think I&#39;ll use them, though.<br />The ticket can be closed.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/539317?ContentTypeID=1Mon, 16 Jun 2025 07:47:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:578130a2-330c-43a1-b9eb-5e57e552e4bdVidar Berg<p>Hi,</p> <p>Thank you for reporting. This looks like it may be a valid fix. However, the %f specifier is not intended to be used with the logger module. It also only support float32 numbers.&nbsp;</p> <p><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1750059977208v3.png" alt=" " /></p> <p><a id="" href="https://docs.nordicsemi.com/bundle/sdk_nrf5_v17.1.0/page/lib_nrf_log.html">https://docs.nordicsemi.com/bundle/sdk_nrf5_v17.1.0/page/lib_nrf_log.html</a>&nbsp;</p> <p>You can use sprintf() from the standard lib if you need to work around&nbsp;this limitation.</p> <p>Best regards,</p> <p>Vidar</p><div style="clear:both;"></div>