https://devzone.nordicsemi.com/f/nordic-q-a/19943/nrf52832-unable-to-connect-to-the-targetHi! I have an nRF52832 on a custom board. I managed to flash it through JLink and STLinkv2. But suddenly, I wasn&#39;t able to communicate to it anymore. Openocd tells me: &quot;unable to connect to the target&quot;. So I measured all the internal referenceen-USTelligent Community 13Thu, 23 Feb 2017 23:10:11 GMThttps://devzone.nordicsemi.com/thread/77611?ContentTypeID=1Thu, 23 Feb 2017 23:10:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ee1fc06b-21b1-41d6-8211-c24f9d96be0bYatekii<p>Thank you very much! Removing the pulldown fixed it ... really mindless of me ...</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/77610?ContentTypeID=1Thu, 23 Feb 2017 11:54:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9a8c1b22-5fe4-47f6-88f7-a640045c8cf2Stian R&#248;ed Hafskjold<p>Hi, the reset pin is active low, which means that when you pull it to ground the chip is in a reset state. The reset pin also has an internal pull-up (13k), so you must remove the external pull-down. I guess that&#39;s why you see 1.5V on the pin. You should just leave the reset pin unconnected, or connect it to ground through a button (if you need the pin reset)</p> <p>Other things: Maybe you accidentally enabled DCDC without having DCDC components on your custom board.</p><div style="clear:both;"></div>