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SmartRF packet sniffer Parsing packets

amir zureik
Intellectual 290 points
Other Parts Discussed in Thread: CC2540, CC2650

Hi,

I am using the SmartRF packet sniffer, using cc2540 USB dongle. 

I want to understand what's going between my CC2650 device and my Application on smartphone.

Can any one help me to parse the packets from the packet sniffer?

where I can see the data that transferred between the CC2650 and the connected application.

Attached a Packet sniffer screen shot and Packet Sniffer log.

Best Regards,

Amir Sniffer data example.psd 

  • 0
    TI__Mastermind 33460 points
    Hi Amir,

    It looks like you have successfully began to sniff the connection betwen the CC2650 and your smartphone. Great work!
    What you are seeing in packet number 17 is the connection request from the phone to the CC2650.
    Afterwords the two devices exchange link layer information so they both understand what features will be supported.
    You can also see the slave device requesting security.

    To better understand what you are looking at I would recommend taking a look at the BLE software Developer's guide which is in the docs folder of the SDK. This will explain some of the things that you will view in the sniffer capture. Joining the BT SIG and gettting access to the specs is helpful too.


    Beyond that you will have to formulate a specific question so that we can support you better.