nRF Boards debug out Cable and its adapter

[RaviDebugs]

I currently have nRF52/53/54 Development Kits and would like to utilize their onboard J-Link debugger by connecting through the Debug-Out Port (P19). However, I have observed that the header pin spacing and connector size on this port are quite small, which makes direct interfacing difficult.

Could you please advise on the correct procedure to access and utilize these signals? Additionally, kindly share links to procure the required cable and adapter needed to bring these signals out to a breadboard-compatible format.

[Turbo J]

The NRF53DK has those debug pins on another pin header with a more traditional spacing (2.54mm IIRC). Use that one for breadboard connections. Pinout/how to use is in its documentation.

I believe recommending 3rd party products is a TOS violation here (read: SPAM). But there should be adapters from 1.27mm ARM layout to other plugs available online elsewhere

The debug connectors are supposed to follow specifications from ARM - thus you should probably look them up in the debug specifications for the Cortex-M cores on arm.com website.

[SwRa]

Hi Ravi,

The P19 connector on the nRF52, nRF53, and nRF54 DKs is a standard 10-pin Serial Wire Debug (SWD) header used to program or debug an external target board via the DK's onboard SEGGER J-Link OB interface MCU. You will need to use a 10-pin flat cable from P19 on the DK to the standard 10-pin SWD connector on your external/custom board.

Best Regards,

Swathy

[RaviDebugs]

I have the Standard 10 Pin SWD Cable, please see the size difference. I think for sure a difference kind of cable or the same cable with different sizing is required here. Please suggest

Best Regards,

Ravi

[Turbo J]

That cable looks like the standard ISP cable for an arduino (or an old school COM port) but its not standard for ARM Cortex-M MCU SWD port, sorry.

[RaviDebugs]

Thanks for the information, but When I google this keyword. On every website I can only find these types of Cables and the products images also everywhere they show the photo of these cables only, which doesn't give me confidence to go ahead and procure them .