Blinky example doesn't work on NRF54H20-DK

[Mykhaylo]

Hello!

I have NRF54H20-DK and I'm trying to run the Blinky example.

I am able to build and program the DK, but nothing happens on LEDs.

Could you please help what else I should check?

NRF54H20-DK: 0.8.2

nRF Connect SDK: v2.7.99-cs2

Thanks.

[Simonr]

Hi

No, this is strange indeed. I have forwarded this info to our devs. Glad you got it working though, but we should look into the reason this doesn't work nonetheless.

Best regards,

Simon

[Mykhaylo]

Hi, Simonr

So we have two NRF54H20-DK boards (the same revision 0.8.2). We have tested the Blinky project on both boards with different versions of SDK. The results are following:
1) v2.7.99-cs2 - the first board works well, the second one doesn't.
2) v2.8.0-rc2 - the first board doesn't work, but the second one now works (LED blinks).

Are there any ideas about this?

Thanks.

[Simonr]

Hmm, did you by chance bring these two boards up at different points in time, so that they have different SoC binaries flashed onto them? If so do you remember which versions are on the two boards? https://docs.nordicsemi.com/bundle/ncs-2.8.0-rc2/page/nrf/app_dev/device_guides/working_with_nrf/nrf54h/ug_nrf54h20_custom_pcb.html#programming_the_sdfw_and_scfw 

That's the only thing I can think of that might differ. You can also post the build codes on the white stickers of the DKs here so we can compare them internally to make sure there aren't any differences between the two.

Best regards,

Simon

[Mykhaylo]

It seems it's nrf54h20_soc_binaries_v0.7.0_engb.zip for both boards from
docs.nordicsemi.com/.../ug_nrf54h20_gs.html

I'm not sure for the first board (works well with v2.7.99-cs2) but it's exactly for the second board (works well with v2.8.0-rc2).

The first board sticker info:
PCA10175
0.8.2
2024.31
1051181573

The second sticker info:
PCA10175
0.8.2
2024.31
1051163442