nRF52840DK - problems getting started

RE: nRF52840DK - problems getting started

Priyanka — Fri, 03 May 2024 06:05:59 GMT

Hi Alexander,

Glad to hear that it's working now and thanks for the feedback.

Regards,

Priyanka

RE: nRF52840DK - problems getting started

Alex_S@Aperia — Thu, 02 May 2024 15:00:20 GMT

Yes, it was the cable, got one from Anker.
The 2 cables I tried before both have USB trident logo, which they shouldn't legally have without data wires, but they do...

I can see the board in all apps now, as well as CDC ports, so my issue is resolved.
Thank you !

Still, I would recommend to update the DK startup guide, the picture is clearly wrong.
And perhaps add a warning about USB cable

RE: nRF52840DK - problems getting started

Priyanka — Thu, 02 May 2024 11:21:51 GMT

Hi Aleksander,

Please do try with other USB cables and let me know how it goes.

Regards,

Priyanka

RE: nRF52840DK - problems getting started

Alex_S@Aperia — Thu, 02 May 2024 02:52:35 GMT

Also, this is very similar nRF52840 power on led(Led 5) blinking continuously
I already tried 2 USB micro cables, perhaps these both are power only, I'll see if I can find some more

RE: nRF52840DK - problems getting started

Alex_S@Aperia — Thu, 02 May 2024 02:50:30 GMT

Found this ld5 flashing quickly, board not visible, PCA10056 IF BOOT not work!
Looks very similar except that I do have nRF power source set to VDD...

RE: nRF52840DK - problems getting started

Alex_S@Aperia — Thu, 02 May 2024 02:24:47 GMT

Quick Start app doesn't find the board either. It says "contact support on DevZone and provide the log", here it is

.devzone.nordicsemi.com/.../2024_2D00_05_2D00_02T02_5F00_22_5F00_27.538Z_2D00_log.txt

RE: nRF52840DK - problems getting started

Alex_S@Aperia — Thu, 02 May 2024 02:21:37 GMT

Additional info - I installed nRFConnect Desktop v4.4.1 for Windows and some apps, including Programmer (v4.3.0)
When I launch Programmer, Select Device menu shows "No supported devices connected"

Programmer used to complain about J-Link version being not what expected (v7.96F vs v7.94E), I installed v7.94E, the warning message is gone, but still "No supported devices connected".