using nrfutil, command line for ble dfu

[BEN_HB]

Hi.

what i want is using 52840 dongle, test ble communication with custom board.

custom board use 52832 and it flashed BL + SD + APP.

I checked it is work  using pc connect low ble program. 

all of that is fine.

I use command line "nrfutil XXX XX XXX" for dfu test.

usually custom board is running app. it need to enter dfu mode using buttonless dfu.

here is question.

1. how to ender dfu mode for command? (custom board, not 52840 dongle)

2. how to ender dfu mode for command line?(52840 donlge - slowly red blink  not push reset button)

3. I used nrfutil dfu ble -pkg test.zip -ic NRF52 -p COMXX -n "test"

  it work only 52840 dongle is entered dfu mode(red light slowly blink)

it show error that NRF_ERROR_TIMEOUT.

I think it can't find dfu ble.

is it right? did i need custom board is enter dfu mode using pc-ble-driver?

thank you.

[Vidar Berg]

Hi,

1. The app running on the target board must implement the Buttonless DFU service like the Buttonless DFU Template Application

2. The connectivity FW includes the DFU Trigger Library (USB) so you can send the command over USB to enter dfu mode

3. The dongle must be programmed with 'connectivity_4.1.1_usb_with_s132_5.1.0.hex' to work with nrfutil. It can be programmed with the Programmer app in nRF connect for desktop as well