After connection between my laptop and NRF52832 module for a while , "disconnected" happened. Why would this happen?

[Jerryxu]

Hi,all

As said above, i've tested two laptops, and this situation happened. I have no idea why this will happen. Is there may  any problem with the connection parameters in the code?

(I use SD s132, V6.0, SDK15.0)

[Kenneth]

An on-air sniffer log would be very useful:

https://www.nordicsemi.com/Software-and-tools/Development-Tools/nRF-Sniffer-for-Bluetooth-LE 
https://infocenter.nordicsemi.com/pdf/nRF_Sniffer_BLE_UG_v3.2.pdf (there might be newer depending on when you read this)

[Jerryxu]

Hi,

does it mean i need a hardware like dongle? but i just seem to see  NRF52840 dongle, if nrf5840  dongle can apply to my nrf52832 chip?

[Kenneth]

You will need one of these development kits or dongles to use the nRF Sniffer for Bluetooth LE:

• nRF52840 Dongle
• nRF52840 DK
• nRF52 DK
• nRF51 DK
• nRF51 Dongle

[Jerryxu]

OK， but can i know the reason of disconnection by it? how can it help me,

sorry , i just  know a little about sniffer, can you tell me what can i get in sniffer log and how to analyze my problem ?some details or examples will be ok.Thanks a lot

[Kenneth]

Run the sniffer when it fails, upload the log here, then we can analyze.

Kenneth

[Jerryxu]

sniffer_ log.txt

Hi,Kenneth

here's the sniffer's log. In the log, connection began in line 1945, ended in line 2205.

it seems that connection ended suddenly from line 2204 to line 2205?Can you find any problem in the log?

thanks a lot.

[Kenneth]

Please share the pcapng file.

Kenneth