nrf Connect for Desktop v3.9.3 not detecting device

[flodis]

I have an early nrf52840-Preview-DK device that has worked fine before.

When the project is revisited the board is no longer detected in any of the programs in nrf Connect for Desktop v3.9.3.

I have flashed the Interface MCU firmware binary J-Link OB-SAM3U128-V2-NordicSemi 170724.bin from https://www.nordicsemi.com/Products/Development-hardware/nrf52840-dk/download#infotabs

The nrf52840 loads binaries using the Segger J-Link drive and works ok.

The device is found using the nrf Command Line nrfjprog.exe -i and reports number 683920827, same as on the device MPU printed label.

I guess the nrf Connect no longer supports windows 7, but stated in the documentations for the programmer - https://infocenter.nordicsemi.com/pdf/nRF_Connect_Programmer_User_Guide_v1.0.pdf


Have tested in both 64 and 32-bit environments with device not detected.

The device also exposes a serial port so it seems the nrf Connect is not as able as it where in earlier versions.

What to do next?
 

[Hung Bui]

Hi Flodis, 

Do you have any other board to test ? 
Could you double check if UART communication works fine with the board ? (test with the peripheral\uart example)

Please send the  "Create System Report"  report when you click on About in the nRF Connect program. 

[flodis]

Hi Hung Bui,

The nrf52840 serial port applications work fine and example code Tx/Rx data is received on J-Link exposed serial port. Code from nRF5_SDK_13.1.0_7ca7556 and nRF5_SDK_17.1.0_ddde560 responds to reset and to the q/Q quit command in the sample works.

I installed old nrfConnect 2.5.0 and it detects the nrf52840-Preview-DK device but complains about "Unsupported device with serial number '000683920827' and traits ["serialport"]"

One phenomena in the nrf Connect v3.9.3 is, with the 64-bit Win7 the applications screen is blank on startup. After a "check for updates" is completed the application list is populated.

Also in the 64-bit Win7 the "create system report" results in "Generating system report..." but never displays any report

In the 32-bit Win7 OS the nrf Connect applications display on start, but with some delay. In the Win7 32-bit there is a system report, but no devices/ports listed in the report.

I checked the source of nrf Connect for desktop and can see it relies heavily on events. Maybe something in how serial ports are discovered that does not work?

Also installed latest version of SEGGER J-Link V7.60f from https://www.segger.com/downloads/jlink/ and updated the DK driver MCU firmware.

Bluetooth Low Energi v3.0.0 starts with

15:11:20.826	Using @nordicsemiconductor/nrf-device-lib-js version: 0.4.1
15:11:20.827	Using nrf-device-lib version: 0.9.8
15:11:20.827	Using nrfjprog dll version: 10.15.1
15:11:20.827	Using JLink version: 6.88a
15:11:21.322	Application data folder: C:\Users\user1\AppData\Roaming\nrfconnect\pc-nrfconnect-ble
15:11:21.733	Updated list of uuids with data from https://github.com/NordicSemiconductor/bluetooth-numbers-database/tree/master/v1

Nothing else in the log

No device discovery.

[Hung Bui]

Hi Flodis, 

I have reported the issue to our software team. I will keep you updated if we find any solution. 
The nRF52840 preview DK is a pretty old kit and it doesn't have the final production silicone on it. We strongly suggest you to get hold of a nRF52840 development kit for further development.