nRF52DK disconnect problem

RE: nRF52DK disconnect problem

Vidar Berg — Thu, 24 Feb 2022 11:44:23 GMT

Strange, I have not experienced this before. Could it be that you are in a very noisy environment? The BLE_HCI_CONN_FAILED_TO_BE_ESTABLISHED error can occur more frequently if there are other active scanners within range.

RE: nRF52DK disconnect problem

HJJ — Thu, 24 Feb 2022 05:22:43 GMT

Thanks for your reply

I tested using the nRF connect mobile app and the connection worked fine without any other issues.

The problem occurred when using the nRF52 as a central(laptop, desktop).

I tested the 52840 dongle, other 3rd party products besides the nRF52dk, but the same problem occurred.

And I checked that it is not a USB mass storage class problem.
The problem was the same when I switched to another laptop or desktop.

As an additional test, I tested using the nRF52 as a central and a custom board of nRF51822 as a peripheral.
As a result, it was more stable than the peripheral connection of nRF52.

I think the problem is with the connection between the nRF52s.

RE: nRF52DK disconnect problem

Vidar Berg — Wed, 23 Feb 2022 13:02:26 GMT

Hello,

I was not able to replicate these issues here. Do you experience the same connection problems if you use the nRF connect mobile app?

You may also try to disable the USB mass storage class on your DK (https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.9.0/zephyr/guides/tools/nordic_segger.html#disabling-the-mass-storage-device-functionality). It's sometimes needed even if you run on Windows.

Best regards,

Vidar