On PCA10028 set VDDnRF to 1.8 V while keeping USB Debughttps://devzone.nordicsemi.com/f/nordic-q-a/17152/on-pca10028-set-vddnrf-to-1-8-v-while-keeping-usb-debugHello, I would like to use the PCA10028 close to the conditions of a future custom board at 1.8 V (including I/Os) but I would like to keep the ability to do source level debugging via USB. Is it possible to just cut SB 9 and provide 1.8 V on the currenten-USTelligent Community 13Fri, 21 Oct 2016 00:59:41 GMTRE: On PCA10028 set VDDnRF to 1.8 V while keeping USB Debughttps://devzone.nordicsemi.com/thread/65895?ContentTypeID=1Fri, 21 Oct 2016 00:59:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:30587d6f-5b56-46dc-8eda-db6ea3c76f91Mike<p>Thank you RK. To speed up others in my situation: PCA10028 P18 connector part #:FTSH-105-01-F-DV-K, example of matching cable part#: FFSD-05-D-12.00-01-N, pin-out compatible Segger adapter cable: <a href="http://shop-us.segger.com/J_Link_9_Pin_Cortex_M_Adapter_p/8.06.02.htm">shop-us.segger.com/.../8.06.02.htm</a></p><div style="clear:both;"></div>RE: On PCA10028 set VDDnRF to 1.8 V while keeping USB Debughttps://devzone.nordicsemi.com/thread/65894?ContentTypeID=1Wed, 19 Oct 2016 02:26:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:83f3d515-8018-4c06-8d0e-fccb61bb3d3dRK<p>The interface MCU won&#39;t be able to program the chip running at 1.8v. So you need an external debugger. If it&#39;s non commercial a segger jlink edu would work.</p><div style="clear:both;"></div>