RE: Flash nRF54L15PDK mcu with SWD pins

Håkon Alseth — Fri, 14 Mar 2025 08:59:06 GMT

Happy to help out, I am glad to hear that you got it running as expected. Hope you have a wonderful weekend!

Kind regards,

Håkon

RE: Flash nRF54L15PDK mcu with SWD pins

KarthikS27 — Thu, 13 Mar 2025 22:07:56 GMT

Thanks Håkon, was able to flash my nRF after adjusting the cable on the J-Link PLUS

RE: Flash nRF54L15PDK mcu with SWD pins

Håkon Alseth — Thu, 13 Mar 2025 14:27:33 GMT

Hi,

[quote user=""]nRF54L15PDK[/quote]

Which version of the PDK are you using?

I could not find a JLink Plus at my end, but used a JLink Base Compact and a J-Trace Pro for testing, on a v0.8.1 of the PDK, with a 10 pin SWD cable connected to the P15 header.

Tested basic communication first via nrfjprog to read the first word in flash:

nrfjprog --memrd 0

And later used JFlash (version v8.20) to flash hello_world to the on-board nRF54L15 device.

Have you checked the orientation of the 10-pin cable? The "red line" of the cable indicates pin 1, and should be at the top-left corner of P15.

Do note that the orientation on the external debugger side (JLink Plus in your case) also needs to be verified.

Kind regards,

Håkon