nrf52840 dongle programming with SEGGER.

RE: nrf52840 dongle programming with SEGGER.

Allen Pan — Fri, 21 Feb 2025 07:51:59 GMT

If I program the dongle with the sniffer firmware, and the bootloader was lost. Can I program it back to BLE dongle?

RE: nrf52840 dongle programming with SEGGER.

Sigurd — Fri, 14 Sep 2018 07:44:02 GMT

[quote userid="73819" url="~/f/nordic-q-a/38307/nrf52840-dongle-programming-with-segger/148672"]But this way I cannot debug my program unless I use nrfutil[/quote]

Since the dongle don't have a debugger, you can only flash firmware to the dongle with the USB bootloader that is on the dongle. If you want to debug, you should get the nRF52840-DK.

RE: nrf52840 dongle programming with SEGGER.

mcls — Thu, 13 Sep 2018 16:20:13 GMT

Every thing I do trying to proggram the device without the application seems useless without something else. Like this:

And looking for an asnwer everybody said that I need J-Flash or J-Link, and again, my device cannot be detected. I do not what to do

RE: nrf52840 dongle programming with SEGGER.

mcls — Thu, 13 Sep 2018 15:40:39 GMT

But this way I cannot debug my program unless I use nrfutil

RE: nrf52840 dongle programming with SEGGER.

Sigurd — Fri, 07 Sep 2018 12:36:43 GMT

Hi,

The nRF52840 Dongle can be programmed through the built-in USB bootloader. It does not have a SEGGER J-Link OB Debugger. That means that you can program it using either nrfutil OR nRF Connect for Desktop’s dedicated Programmer programming app. I would recommend the programming app.

See this page for more information.

Here is a link where you can download nRF Connect for Desktop.