nRF54L15-DK - how to connect to external MCU?

[Alex P]

Dear Team,

I have nRF54L15-DK and my firmware is running fine over there.

Now I want to use nRF54L15-DK to program & debug standalone NRF54L15 on a my custom board.

The custom MCU has SWDIO, SWDCLK, GND and 2V8 exposed in header, but I need to know to which pins on nRF54L15-DK board I should be connecting those outputs to, to allow me programming standalone MCU and debug the outputs via RTT console.

Unfortunately, the drawing at the back of the board is not very helpful as is not specifying where exactly SWDIO and SWDCLK pins are mapped to.

Thanks

[PjGlasso]

Hi there,

I'm doing same as a few others here, using the external Jlink capabilities to program/debug via SWD.

P19 is the connector, Here isa video I did on the subject and the adapter I used as well as some Key caveats to getting it going.

For you start with the board config first, Get it set for the VDD you use.

Once connected properly you can use JLink commands and the Programmer app in Nrf_connect for Desktops.

https://forum.seeedstudio.com/t/xiao-nrf54l15-an-error-occurred-memory-transfer-fault-0x00ffc31c-0x00ffc31f/293792/53?u=pj_glasso

or video is here Directly

https://vimeo.com/1125305838?fl=pl&fe=sh

HTH

GL :-) PJ :v: