https://devzone.nordicsemi.com/f/nordic-q-a/51049/what-should-i-pay-attention-to-when-using-sadcI use nrf_drv_saadc_init(NULL, NULL) to sample AD per second(Blocking type). But every time the firmware runs, the ADC value always takes several times to stabilize. What should I pay attention to when using SADC? Thanks!en-USTelligent Community 13Mon, 19 Aug 2019 11:57:40 GMThttps://devzone.nordicsemi.com/thread/204740?ContentTypeID=1Mon, 19 Aug 2019 11:57:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:720da972-f0fe-4916-bac0-e354d3996b08AndreasF<p>Hi again.</p> <p>How are you handling the external crystal? Do you start it and immediately start sampling?</p> <p>Have you measured the pin with a scope or a similar thing?</p> <p>Do you have something else using the pin before saadc_init()?</p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/204606?ContentTypeID=1Mon, 19 Aug 2019 01:49:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fce40bb1-74cb-44c7-9b2b-20a680d427a2Hansome<p>There is no problem with pin configuration.&nbsp;You see, the last ADC values are all right, but there&#39;s an incremental process ahead that&#39;s confusing.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/204394?ContentTypeID=1Fri, 16 Aug 2019 06:55:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:37912f2a-fe26-41e8-8d9d-dc19cbea7095AndreasF<p>Hello, <a href="https://devzone.nordicsemi.com/members/hansome">Hansome</a>.</p> <p>Have you checked that you have the correct pin mapping? Could you post it? Have you checked that you don&#39;t have any floating pins?</p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>