RE: dazzled and confused

PaKa — Mon, 23 Jul 2018 12:27:27 GMT

Hi,

first and foremost, the dongle is not a replacement for the DK, it is a supplement primarily targeted to be the HW frontend for nRF Connect for Desktop. That said, what you plan to do will be possible to do but will require the use of a DK in addition to the dongel.

Based on your description it is a bit unclear what you want to do. There is already a USB DFU on the device and this can't be replaced by the user through the USB interface. If you want to replace it then you will need to use the SWD interface. If so then you will need to read out the memory through SWD prior to erasing if you want to revert to the default FW later, there is another post on how to do this in DevZone.

As of today, the nRF Connect for Desktop programming app does not support programming applications using the SoftDevice, this will be coming with the next update. In the meantime you can program such applications through nrfutil (though not the DFU section).

RE: dazzled and confused

Michael — Mon, 23 Jul 2018 11:45:12 GMT

Hi jsayed

With regards to the second part of your question "Another question, can I use your JTAG header pins on the Dongle and program my Hex file. I understand DFU is great tool to field upgrade an existing

device but right now all I am interested is to use my dongle as my nRF52840 DK and later install the BLE sniffer app."

I think this is described in the Debug output section of the DK users guide (pls see the link)

http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.nrf52%2Fdita%2Fnrf52%2Fdevelopment%2Fnrf52840_pdk%2Fif_mcu.html

Cheers

Michael