Flash a nrf52840dk sniffer board

[Ying]

I programmed a nrf52840dk board (PCA10056 3.0.0 2022.7 1050288497) as a sniffer. It works well.

Now I want to flash it to zephyr samples/basic/blinky by "west flash".
west flash
-- west flash: rebuilding
ninja: no work to do.
-- west flash: using runner nrfjprog
-- runners.nrfjprog: reset after flashing requested
FATAL ERROR: Unable to find a board; is the board connected?

ls -hal /dev/serial/by-id

usb-ZEPHYR_nRF_Sniffer_for_Bluetooth_LE_49F8F9D7E8AE3B9E-if00 -> ../../ttyACM0

I tried to hold RESET button and cycled the power but it still ran into sniffer.

Thanks!

[Kenneth]

Hi,

I highly recommend to get an nRF52840-DK instead, then you get proper programming and debugging environment with access to all pins. The nRF52840 USB dongle don't have that possibility, and is (at least in my experience) more useful for demo purposes, such as to test a finish product, or sniffer, or work with the BLE app in the nRF Connect SDK for desktop. 

Edit: Sorry, I can see now you are using the nRF52840-DK already. I thought you were using the dongle.

Kenneth