LPCOMP: start-up time and REFSEL while runninghttps://devzone.nordicsemi.com/f/nordic-q-a/27149/lpcomp-start-up-time-and-refsel-while-runningHi, two quick questions (nRF52832): What is the value of t_LPCOMP,STARTUP (I didn&#39;t find it in the PS). Can PSEL be modified while LPCOMP is running? What is the expected delay until the output is stable again? Regards en-USTelligent Community 13Tue, 05 Dec 2017 14:13:54 GMTRE: LPCOMP: start-up time and REFSEL while runninghttps://devzone.nordicsemi.com/thread/106920?ContentTypeID=1Tue, 05 Dec 2017 14:13:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:400975b5-ece9-462a-809d-4e6811f54877MartinBL<p>Hi,</p> <p>My apologies for the long wait. Busy days here at Nordic.</p> <ol> <li>The value of nRF52832&#39;s t_LPCOMP,STARTUP is 25us. This is the time delay from the LPCOMP is started until the READY event is generated. However, please be aware of this errata: <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.Rev1.errata/anomaly_832_76.html?cp=2_1_1_0_1_16">[76] LPCOMP: READY event is set sooner than it should</a>. This implies that the comparator may need another 115us before it really can be trusted. A firmware workaround for this is suggested in the link above.</li> <li>No it can&#39;t. LPCOMP (and all other peripherals) shall be stopped before modifying PSEL or any other configuration register.</li> </ol><div style="clear:both;"></div>RE: LPCOMP: start-up time and REFSEL while runninghttps://devzone.nordicsemi.com/thread/106919?ContentTypeID=1Thu, 14 Sep 2017 06:49:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:454454b8-f638-4bc7-809f-576e721899ecMartinBL<p>Hi, I have asked the LPCOMP architects. It might take a few days before I have an answer for you though.</p><div style="clear:both;"></div>