https://devzone.nordicsemi.com/f/nordic-q-a/125267/what-serial-wire-debugger-swd-should-we-buyHello everyone, We’re developing a prototype using the nRF52840 MCU, and we need to flash a bootloader over SWD using a 1.8 V system powered by a PMIC. I’m exploring whether the nRF52840 DK can act as a programmer in this setup, or if we should useen-USTelligent Community 13Thu, 30 Oct 2025 11:27:27 GMThttps://devzone.nordicsemi.com/thread/552889?ContentTypeID=1Thu, 30 Oct 2025 11:27:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:92c213f4-27b3-4bd7-a3a4-ace5a030154aPhilCreateMedtech<p>Thank you very much for the reply, i think we are going with the J-Link Base compact too then.&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/552635?ContentTypeID=1Tue, 28 Oct 2025 12:54:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f9e4bdc5-2ba2-4d49-a28f-2c76064e42f5PaKa<p>The nRF52 DKs can only support external targets with the same operating voltage as the DKs, there is no support for variable external voltage on the kits.</p> <p>We use the jlink base compact for a lot of internal testing so can definitely say that should be OK. This is also designed for non-lab use so has more robust programming output. The DKs are designd for ESD safe workplace use only and does not support hot swapping.</p><div style="clear:both;"></div>