Unable to flash Thread NCP on nRF52840dongle

RE: Unable to flash Thread NCP on nRF52840dongle

Marjeris Romero — Thu, 08 Jul 2021 10:32:22 GMT

Hi,

Sorry for the late reply, I see you are still struggling with this.

It's normal to get some error after sucessfully flashing the dongle, as the application will be running instead of the dongle going into "DFU mode/bootloader". Only if you are using USB SDFU protocol you will able to connect to the dongle again. You may see this message right after programming:

And you will need to press the reset button in the dongle to go into bootloader mode again.

Have you tried to test if the application is running as intended after the programming with the nRF Connect programmer app? Because it could looked as if it was successfully programmed.

You can also double check that the NCP application is built with FLASH_START at 0x1000 so there is space for the dongle's MBR.

When using nrfutil, remember to set the dongle in bootloader mode before running it.

You could also test using another PC, just to make sure this is not an USB transfer issue.

Best regards,

Marjeris

RE: Unable to flash Thread NCP on nRF52840dongle

nagesh.shamnur — Tue, 29 Jun 2021 09:56:09 GMT

i even tried flashing using nrf-utill but get the error. log as below:

$ nrfutil pkg generate --hw-version 52 --sd-req=0x00 --application build/zephyr/zephyr.hex --application-version 1 ot-rcp.zip

$ nrfutil dfu usb-serial -pkg ot-rcp.zip -p /dev/ttyACM0

Traceback (most recent call last):
File "/usr/local/bin/nrfutil", line 8, in <module>
    sys.exit(cli())
File "/home/ohos-bld/.local/lib/python3.8/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
File "/home/ohos-bld/.local/lib/python3.8/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
File "/home/ohos-bld/.local/lib/python3.8/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/home/ohos-bld/.local/lib/python3.8/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/home/ohos-bld/.local/lib/python3.8/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
File "/home/ohos-bld/.local/lib/python3.8/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
File "/usr/local/lib/python3.8/dist-packages/nordicsemi/__main__.py", line 1014, in usb_serial
    do_serial(package, port, connect_delay, flow_control, packet_receipt_notification, baud_rate, serial_number, False,
File "/usr/local/lib/python3.8/dist-packages/nordicsemi/__main__.py", line 970, in do_serial
    dfu.dfu_send_images()
File "/usr/local/lib/python3.8/dist-packages/nordicsemi/dfu/dfu.py", line 127, in dfu_send_images
    self._dfu_send_image(self.manifest.application)
File "/usr/local/lib/python3.8/dist-packages/nordicsemi/dfu/dfu.py", line 88, in _dfu_send_image
    self.dfu_transport.open()
File "/usr/local/lib/python3.8/dist-packages/nordicsemi/dfu/dfu_transport_serial.py", line 216, in open
    self.__set_prn()
File "/usr/local/lib/python3.8/dist-packages/nordicsemi/dfu/dfu_transport_serial.py", line 360, in __set_prn
    self.__get_response(DfuTransportSerial.OP_CODE['SetPRN'])
File "/usr/local/lib/python3.8/dist-packages/nordicsemi/dfu/dfu_transport_serial.py", line 491, in __get_response
    raise NordicSemiException('Unexpected Executed OP_CODE.\n' \
pc_ble_driver_py.exceptions.NordicSemiException: Unexpected Executed OP_CODE.
Expected: 0x02 Received: 0x7E

RE: Unable to flash Thread NCP on nRF52840dongle

nagesh.shamnur — Tue, 29 Jun 2021 09:55:30 GMT

any update on this issue? thanks.

RE: Unable to flash Thread NCP on nRF52840dongle

nagesh.shamnur — Mon, 28 Jun 2021 06:18:50 GMT

I had raised similar issue in the past also, but it doesn't seem to work. Can you please help me on this issue.

https://devzone.nordicsemi.com/f/nordic-q-a/75456/unable-to-run-ble-samle-on-my-nrf52840-dongle-using-nrf-connect-desktop-application

Due to this issue, i am unable to use both the nRF52840Dongles which i have purchase recently. I am facing same issue with both of them.

Thanks.