Where to find up-to-date documentation for nRF52840 DK (PCA10056 - 3.0.3)? (Trying to flash an external board with its own power source)

[Yaman Kalaji]

Hi, I am trying to find the latest documentation for the DK, I checked here:
https://docs.nordicsemi.com/bundle/ug_nrf52840_dk/page/UG/dk/ext_programming_support.html
But the P20 pins that I have (on my PCA10056 - 3.0.3) don't match the docs.

I am trying to understand the DK's behaviour when flashing an external board with its own power source. As far as I know, SWDCLK, SWDIO and GND should be connected. But online sources indicated I should short the VTG pin to VDD so the debugger knows what voltage level it needs to use when communicating with the external board, however, on PCA10056 - 3.0.3 I don't have VTG.

Many thanks for any clarification on this.

[Yaman Kalaji]

Many thanks for the info. It seems the link you sent doesn't work. Could you confirm if it works, please? Thanks!

[Kenneth]

Try this: https://docs.nordicsemi.com/bundle/ug_nrf52832_dk/page/UG/dk/hw_debug_out_segger53.html 

Kenneth