RE: Dongle Thread as NCP error

Marjeris Romero — Thu, 04 Apr 2019 14:06:24 GMT

Hi Emile,

Sorry for the late reply. I think the LIBUSB error promted in the nRF Connect programmer app just after flashing is because the app expects to see the dongle bootloader. When you change to the dongle bootloader mode (pressing the RESET button) the error dissapears and you can see both the nfc usb bootloader (in green) and the dongle bootloader are correctly flashed to the dongle.

Are you able to read the NCP version after flashing with an external debugger? Did you do an erase all before flashing? I haven't tested this example myself but I think it should have work when flashed with the nRF Connect app as well. The only thing that would have been different when flashing with an external debugger is that you may have erase the factory-programmed bootloader of the nRF52840 dongle.

Best Regards,

Marjeris

RE: Dongle Thread as NCP error

Emile Albert — Wed, 03 Apr 2019 09:51:52 GMT

[Update]

After successfully flashed NCP with external debugger (nRF52840 DK), I can now say that the nRF Connect App is involved in flashing problem. On my side, my problem is solved but I don't understand why it was not possible to use the nRF Connect App to correctly flash NCP software