Having issue with NRF dongle as sniffer

RE: Having issue with NRF dongle as sniffer

haakonsh — Fri, 26 May 2023 10:39:16 GMT

Okay, thanks!

I don't understand what exactly has happened to the dongle, but it seems like you have managed to put the dongle back into its original state.

Good luck.

RE: Having issue with NRF dongle as sniffer

jay — Fri, 26 May 2023 04:43:06 GMT

1. update set REGOUT0 to 0x5 by cmd.

2. I flash bootloader by using j-link.

3. then i plug into usb port and put it in DFU mode and upload sniffer firmware by nrf connect.

4. checked on Wireshark, its shows as nrf sniffer.

RE: Having issue with NRF dongle as sniffer

haakonsh — Thu, 25 May 2023 13:36:33 GMT

[quote user="jy_k"]So i flash via programmer app after that it stop responding[/quote]

Strange.

[quote user="jy_k"]A solution provided by you is Worked completely and now i able to use as sniffer and showing wire shark also.[/quote]

Did you now program the sniffer FW via the nRF connect programmer app and USB bootloader, or via j-link?

RE: Having issue with NRF dongle as sniffer

jay — Thu, 25 May 2023 12:01:28 GMT

Hey,

thanks for Quick Response...

So i flash via programmer app after that it stop responding...and i erased UICR when programming via the J-link (-eraseall) and bootloader also...

A solution provided by you is Worked completely and now i able to use as sniffer and showing wire shark also.

Thank you

Regards,

jay

RE: Having issue with NRF dongle as sniffer

jay — Thu, 25 May 2023 11:36:14 GMT

Hey,

thanks for Quick Response...

So i flash via programmer app after that it stop responding...

let me try your suggestion and will update you soon...

regards

jay

RE: Having issue with NRF dongle as sniffer

haakonsh — Thu, 25 May 2023 10:42:14 GMT

Hey Jay,

[quote user=""]but when i flash firmware(sniffer_nrf52840dongle_nrf52840_4.1.1.hex) in to dongle its disappear from NRF connect desktop -> programmer , not showing in Wireshark also not detected on device manger on plug in or out[/quote]

Did you flash via the programmer app, or with the J-link when the device stopped responding?

[quote user=""]so try to flash code with j-link with attach wire as showing in pic and upload blink code from SDK-17(examples\peripheral\blinky\hex\blinky_pca10059_mbr.hex) - its flash successfully also able to read back so think nothing wrong with hardware so i checked voltage at board on P1 pin1 shows 1.8V an don tp VBUS shows 5.0V so supply is ok[/quote]

The OUT pin should read 3.3V. Most likely you've erased REGOUT0 in UICR when programming via the J-link (-eraseall). You need to set REGOUT0 to 0x5.

If you have erased UICR during programming then its also likely that you have erased the bootloader as well, see nRF52840 Dongle Programming Tutorial. Here's the nRF52 Dongle's bootloader: devzone.nordicsemi.com/.../0412.pca10059_5F00_bootloader.zip

I think you can set UICR with 'nrfjprog --memwr 0x10001304 --val 0x05 --verify', if the provided bootloader does not do so already.

BR,
Håkon Holdhus