Unable to Flash Blinky

[[email protected]]

Hello,

I just got started with the nRF5340 DK.  I went through the example which instructs how to load the "Blinky" applications, build it, and then flash it to the Board.

Everything works except for flashing it to the board.  I get the following error:

* Executing task: nRF Connect: Build: blinky/build (active)

Building blinky
west build --build-dir c:/nordic/myapps/blinky/build c:/nordic/myapps/blinky

[0/16] Performing build step for 'tfm'
ninja: no work to do.
* Terminal will be reused by tasks, press any key to close it.

* Executing task: nRF Connect: Flash: blinky/build (active)

Flashing build to 1050099720
west flash -d c:\nordic\myapps\blinky\build --skip-rebuild --dev-id 1050099720

-- west flash: using runner nrfjprog
-- runners.nrfjprog: Flashing file: c:\nordic\myapps\blinky\build\zephyr\merged.hex
ERROR: No debuggers were discovered.
NOTE: For additional output, try running again with logging enabled (--log).
NOTE: Any generated log error messages will be displayed.
FATAL ERROR: command exited with status 41: nrfjprog --program 'c:\nordic\myapps\blinky\build\zephyr\merged.hex' --sectorerase --verify -f NRF53 --coprocessor CP_APPLICATION --snr 1050099720

* The terminal process terminated with exit code: 41.
* Terminal will be reused by tasks, press any key to close it.

[Einar Thorsrud]

Hi,

You get the "ERROR: No debuggers were discovered" error (which is also what status 41 indicate) for some reason.

Can you see if the debugger is found with "nrfjprog -i"?

If that works, can you successfully do an "nrfjprog --recover --coprocessor CP_NETWORK && nrfjprog --recover"?

[[email protected]]

Hello,

nothing seems to happen when I try that.  Here is a screenshot of what I am seeing.

[[email protected]]

I have also tried through nRF Connect for desktop using the programmer with a similar issue.

My D: shows Jlink if this helps:

[Einar Thorsrud]

Hi,

There seems to be an issue with the debugger. Can you try to re-program the onboard debugger firmware from J-Link Configurator and see if that helps? You should allready have that installed on your computer as part of the J-Link driver pack.

[[email protected]]

Hello,

After opening J-Link Configurator and plugging in my nRF5340 board, the program says no boards found.  Do I need an external Jlink device for programming the Development Kits?

I have tried connecting to the nRF5340 dev kit, and the nRF5340 Audio dev kit, with no luck.

Is there a dip switch setting, or button sequence that must be done prior to plugging in these boards?