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

Can you show me what build command you've used for building the sample? You can also try sing west flash --recover to make sure you erase what is already on the nRF54H20 when flashing it so there are no strange overlaps.

Please also share what version you have of nrfutil and nrfutil device with the commands:

• nrfutil --version
• nrfutil device --version

Best regards,

Simon

[Mykhaylo]

I have used "west build -p -b nrf54h20dk/nrf54h20/cpuapp" command.

(v2.7.99-cs2) e:\Misha\WorkProjects\ZephyrBasedProjects\blinky> nrfutil --version
nrfutil 7.12.0 (39003c9 2024-06-10)
commit-hash: 39003c9d0e5d946af0f417cfadf4ac55a6d03c19
commit-date: 2024-06-10
host: x86_64-pc-windows-msvc
build-timestamp: 2024-06-10T15:56:55.227746900Z
classification: nrf-external

(v2.7.99-cs2) e:\Misha\WorkProjects\ZephyrBasedProjects\blinky> nrfutil device --version
nrfutil-device 2.7.4 (57c8228 2024-11-01)
commit-hash: 57c82285a70af8fa8418248c1367a5540a935a72
commit-date: 2024-11-01
host: x86_64-pc-windows-msvc
build-timestamp: 2024-11-01T13:09:52.742390300Z
classification: nrf-external

Detected SEGGER J-Link version: JLink_V7.94i

(v2.7.99-cs2) e:\Misha\WorkProjects\ZephyrBasedProjects\blinky> west flash --recover
-- west flash: rebuilding
[0/7] Performing build step for 'blinky'
ninja: no work to do.
[7/7] Generating ../zephyr/dfu_suit.zip
-- west flash: using runner nrfutil
-- runners.nrfutil: reset after flashing requested
Using board 001051163442
-- runners.nrfutil: Recovering and erasing flash memory for both the network and application cores.
-- runners.nrfutil: Flashing file: E:\Misha\WorkProjects\ZephyrBasedProjects\blinky\build\blinky\zephyr\uicr_merged.hex
-- runners.nrfutil: Recover
-- runners.nrfutil: Recover
-- runners.nrfutil: Programming image
-- runners.nrfutil: Verifying image
-- runners.nrfutil: Programming image
-- runners.nrfutil: Verifying image
-- runners.nrfutil: Erase
-- runners.nrfutil: Programming image
-- runners.nrfutil: Verifying image
-- runners.nrfutil: Reset
-- runners.nrfutil: Board with serial number 1051163442 flashed successfully.

But after that LEDs don't blink.

Thanks.