Unable to flash nrf5340DK or custom board with SEGGER over SWD

RE: Unable to flash nrf5340DK or custom board with SEGGER over SWD

Menon — Mon, 01 Jul 2024 08:40:31 GMT

Hello,

[quote user="bradcb212"]In the end, programming just started working. Maybe my IDC cable is less than perfect.[/quote]

Good to hear that it is working for you. Using a subpar IDC cable may lead to unreliable support for higher speeds, this could prevent you from increasing the SWD (Serial Wire Debug) speed during the flashing process, as SWD typically necessitates a high-quality cable to maintain higher speeds without errors.

Kind Regards,

Abhijith

RE: Unable to flash nrf5340DK or custom board with SEGGER over SWD

bradcb212 — Sat, 29 Jun 2024 19:15:47 GMT

I would appreciate the ability to vary SWD speeds.

In the end, programming just started working. Maybe my IDC cable is less than perfect.

RE: Unable to flash nrf5340DK or custom board with SEGGER over SWD

Menon — Mon, 17 Jun 2024 11:58:33 GMT

Hello,

[quote user="bradcb212"]

I mean I changed from using my physical board to the nrf5340DK physical board, I also updated the build configuration to reflect this as my board target.

My point is, I cannot flash SWD to either the nrf5340DK using my Segger J-Link. Nor can I flash to my custom PCBA with the Ezurio nrf5340 module with the same Segger J-

[/quote]

Have you tried communicating with your board via J-Link Commander? When you attempt to communicate using J-Link Commander, you need to specify the interface speed. How does that work?

I am not sure if I fully understand your question. Are you asking whether it is possible to set the SWD speed in the nRF Connect VS Code extension by configuring the `launch.json` file? I am not certain if this can be done through the VS Code extension. If this is what you are asking, please let me know, and I will inquire with the VS Code team for further clarity.

Kind Regards,

Abhijith

RE: Unable to flash nrf5340DK or custom board with SEGGER over SWD

bradcb212 — Sat, 15 Jun 2024 04:23:31 GMT

Note when I say

[quote userid="134359" url="~/f/nordic-q-a/112144/unable-to-flash-nrf5340dk-or-custom-board-with-segger-over-swd"]Next I tried changing the board back to the nrf5340DK and flashing to the SWD connector directly. This also failed in the same manner.[/quote]

I mean I changed from using my physical board to the nrf5340DK physical board, I also updated the build configuration to reflect this as my board target.

My point is, I cannot flash SWD to either the nrf5340DK using my Segger J-Link. Nor can I flash to my custom PCBA with the Ezurio nrf5340 module with the same Segger J-Link.