https://devzone.nordicsemi.com/f/nordic-q-a/23798/lfclkstat-statusI want to read the status of LFCLK,but I find that ,the value I have readed is awayls zero! my code is follow : LFCLK_State = ((NRF_CLOCK-&gt;LFCLKSTAT) &gt;&gt; 16) &amp; 0x00000001; printf(&quot;LFCLK_State:%u\r\n&quot;,LFCLK_State); Is there any mistake here? en-USTelligent Community 13Wed, 26 Jul 2017 10:23:36 GMThttps://devzone.nordicsemi.com/thread/93614?ContentTypeID=1Wed, 26 Jul 2017 10:23:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:970899aa-342c-41fa-8501-e2117f3c73e9yu-wang<p>Thanks very much! The problem is solved!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/93613?ContentTypeID=1Wed, 26 Jul 2017 10:12:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9dd581c8-111c-48c0-9453-9fc2f15021f0Jakub Rzeszutko<p>Yes I have faced similar problem. There is a wait time before register will be updated.</p> <p>Please add some - for example nrf_delay_ms(2) before reading register status.</p> <p>I guess you have following problem:</p> <ol> <li>reset</li> <li>starting LFCLK</li> <li>read status == not running.</li> </ol> <p>I proposed 2 ms between points 2 and 3 and it shall be far enough. Basically I believe you can change it to nrf_delay_us(30) or even less. You need to test it.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/93612?ContentTypeID=1Wed, 26 Jul 2017 10:03:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fc2dd843-48a2-45e4-8374-32af0b7e8598yu-wang<p>Can the RC antomatically execute?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/93616?ContentTypeID=1Wed, 26 Jul 2017 09:58:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e1524744-1b76-4558-875d-2da188e122deyu-wang<p>Just once after reset. But I find that the value is always zero. Do you have better ideas about how to read the LFCLK status? Thanks very much!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/93615?ContentTypeID=1Wed, 26 Jul 2017 09:52:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dbb23a6b-3ec9-4a95-9994-b4e1db475460Jakub Rzeszutko<p>Where in your code you are checking the status? Just once after reset or ?</p><div style="clear:both;"></div>