RE: nRF52840 dongle got disconnected within 1 minute connected to nRF52840 DK

jshen — Fri, 11 Sep 2020 23:44:15 GMT

Hi Amanda,

Thank you very much, i will try it and let you know the result.

Job

RE: nRF52840 dongle got disconnected within 1 minute connected to nRF52840 DK

Amanda Hsieh — Fri, 11 Sep 2020 07:27:31 GMT

Hi Job,

Please try Erasing the DK and do it again.

-Amanda H.

RE: nRF52840 dongle got disconnected within 1 minute connected to nRF52840 DK

jshen — Thu, 10 Sep 2020 18:31:18 GMT

Hi Amanda,

Thank you for looking into it.

To make things simple,i didn't modify the code at all. The dongle was programmed with the original hex file from the downloaded SDK. I did compile the DK code using SES but without any change at all.

I installed latest wireshark and the nRFSniffer. unfortunately the sniffer doesn't support the nRF52 dongles i have, and although it supports the DK, but i only have one DK and needed it to run the ble_app_interactive application. I looked at the sniffer software hex files and there was no hex file for PCA10059 which is the dongle i have.

Modifying the NRF_LOG_DEFAULT_LEVEL from 3 (info) to 4 (debug), didn't change the CLI output, i did rebuilt the project a couple of times to be sure.

[2020-09-10 12:59:41.670] uart_cli:~$ BLE app with command line interface example started.
[2020-09-10 12:59:41.681] uart_cli:~$ Press Tab to view all available commands.
[2020-09-10 12:59:41.690] uart_cli:~$
[2020-09-10 12:59:59.980] advertiseballocbonded_devicesclear
[2020-09-10 12:59:59.980] cliconnectconnected_devicesdevice_name
[2020-09-10 12:59:59.980] devicesnumericpair
[2020-09-10 13:00:00.001] parametersprivacyqueueremove_bond
[2020-09-10 13:00:00.013] resizescan
[2020-09-10 13:00:00.013] uart_cli:~$
[2020-09-10 13:00:01.165] uart_cli:~$ scan on
[2020-09-10 13:00:03.483] Scan started
[2020-09-10 13:00:03.483] uart_cli:~$ <info> app: Scanning
[2020-09-10 13:00:03.483] uart_cli:~$ devices
[2020-09-10 13:00:21.543] Device ED:5E:2C:11:B5:A2 Nordic_Blinky
[2020-09-10 13:00:21.546] Device 71:12:05:FD:9F:18
[2020-09-10 13:00:21.551] uart_cli:~$ connect ED:5E:2C:11:B5:A2
[2020-09-10 13:00:33.598] uart_cli:~$ <info> app: CENTRAL: Connecting...
[2020-09-10 13:00:33.666] uart_cli:~$ Connected to address: uart_cli:~$ ED uart_cli:~$ 5E uart_cli:~$ 2C uart_cli:~$ 11 uart_cli:~$ B5 uart_cli:~$ A2 uart_cli:~$
[2020-09-10 13:00:33.681] uart_cli:~$ <info> app: CENTRAL: Connected, handle: 0.
[2020-09-10 13:00:33.685] uart_cli:~$ <info> peer_manager_handler: Peer data updated in flash: peer_id: 0, data_id: Peer rank, action: Update, no change
[2020-09-10 13:00:33.698] uart_cli:~$ Current MTU: 23
[2020-09-10 13:00:34.154] uart_cli:~$ MTU changed successfully
[2020-09-10 13:00:34.165] uart_cli:~$ <info> app: CENTRAL: Disconnected, handle: 0, reason: 0x22
[2020-09-10 13:01:14.168] uart_cli:~$ <info> peer_manager_handler: Connection security failed: role: Central, conn_handle: 0x0, procedure: Encryption, error: 4352
[2020-09-10 13:01:14.177] uart_cli:~$

Best regards,

Job

RE: nRF52840 dongle got disconnected within 1 minute connected to nRF52840 DK

Amanda Hsieh — Thu, 10 Sep 2020 12:32:18 GMT

Hi jshen,

Did you modify the example code ble_app_blinky or ble_app_interactive? If so, what are they?

Can you provide the full log output from the ble_app_interactive while connecting to dongle A2? If you could set NRF_LOG_DEFAULT_LEVEL to 4 in your sdk_config.h file, that should provide more details.

Can you provide a sniffer trace between the two devices when reproducing? You can use nRFSniffer for that.

-Amanda H.