https://devzone.nordicsemi.com/f/nordic-q-a/14105/default-value-of-pofcon-in-nrf52832Hi, I want to make sure that the nRF52832 can start working (turn on) with a 1.8V power supply. Therefore I went to check the default value of POFCON register, in which the Brownout voltage can be set. As the datasheet says, the default value is 0x00000000en-USTelligent Community 13Fri, 27 May 2016 11:14:23 GMThttps://devzone.nordicsemi.com/thread/53918?ContentTypeID=1Fri, 27 May 2016 11:14:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5f459931-c1da-4081-934d-a431f4d940d0Petter Myhre<p>The BOR voltage threshold is fixed. See <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.0/power.html?cp=2_2_0_16_9_2#unique_668520390">this</a>.</p> <p>The power-fail comparator (POF) can provide the CPU with an early warning of impending power failure. It will not reset the system, but give the CPU time to prepare for an orderly power-down.</p> <p>The comparator features a hysteresis of VHYST, as illustrated in Figure 4. The threshold VPOF is set in register POFCON. If the POF is enabled and the supply voltage falls below VPOF, the POFWARN event will be generated.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/53917?ContentTypeID=1Thu, 26 May 2016 10:01:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d5136fbb-9819-4a65-a110-953049f49dffVala<p>I guess I found the answer to my question <a href="https://devzone.nordicsemi.com/question/32130/nrf51822-pofcon-setting-at-vdd-21v/">here</a> and <a href="https://devzone.nordicsemi.com/question/32487/nrf51822-pofcon-and-comparator-operation-when-boot-at-vdd-18v/">here</a>. So as I understood, whatever the value of POFCON is, the device starts working if the source voltage is in the range of 1.7 ot 3.6V and when it is lower that set thresholds (including the one for Brownout voltage), it just produces an event and does not turn off the device. Am I right?</p><div style="clear:both;"></div>