WICED Studio Bluetooth

[JoOr_4004241]

I am using a CySmart BLE 4.2 dongle to detect and connect to my CVBT-42302802 module. I am using BTSpy.exe and ClientControl.exe with the appropriate trace messaging in my WICED application configured for WICED_ROUTE_DEBUG_TO_WICED_UART. When the CySmart dongle requests pairing, I get the following messages at the end of the pairing process.

14:15:25.541 SENT [1] Command to HCI.  Name: HCI_LE_Add_Device_To_Resolving_List_Command   (Hex Code: 0x2027  Param Len: 39)

14:15:25.541                        Peer address type : Public (00)

14:15:25.541                             Peer address : 00-a0-50-50-43-20

14:15:25.541                                 Peer irk : 73 46 13 95 95 c0 b4 1e 49 7b bd e3 65 f4 2d 0a

14:15:25.541                                Local irk : 08 4e 9d 21 4c e2 6c 35 8c 4e 47 4d 3e 9f d1 9c

14:15:25.543 RCVD [1] Event from HCI.  Name: HCI_Command_Complete   (Hex Code: 0x0e  Param Len: 4)

14:15:25.543                      Num HCI Cmd Packets : 1 (0x01)

14:15:25.543                                 Cmd Code : 0x2027  (HCI_LE_Add_Device_To_Resolving_List_Command)

14:15:25.543                                   Status : Success (0x00)

14:15:25.545 SENT [1] Command to HCI.  Name: ?? Unknown ??   (Hex Code: 0x204e  Param Len: 😎

14:15:25.545 Error - Unknown HCI command: 8270 [0x204e] Length: 8

14:15:25.545                               Parameters : 00 20 43 50 50 a0 00 01

14:15:25.545 RCVD [1] Event from HCI.  Name: HCI_Command_Complete   (Hex Code: 0x0e  Param Len: 4)

14:15:25.545                      Num HCI Cmd Packets : 1 (0x01)

14:15:25.545                                 Cmd Code : 0x204e  (?? Unknown ??)

14:15:25.545 Error - Unknown HCI command: 8270 [0x204e]

What is command 0x204e? I can't seem to find any documentation on this command.

[Owen_Zhang123 · Accepted solution]

0x204e is the LE Set Privacy Mode Comand. You can find the command details in the Core_v5.0 vol2, Part E, 7.8.77.

Or you can also find it in the CyBluetool CyBluetool (Windows Installer)

[JoOr_4004241]

Thank you for answering my question, Owen. So, what is reporting the Set Privacy Command as "Unknown"? Is it the BTSpy/ClientControl software or the CYW20719 module?

[Owen_Zhang123]

The BT Spy capture the HCI command between the host and the controller, then try to analyse it. The "Unknown" is caused by the BTSpy software.

[JoOr_4004241]

Thank you once again, Owen. I very much appreciate your prompt replies.