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What tool are you using for BLE data stream visualization?

Xiao WANG2
Prodigy 100 points
Other Parts Discussed in Thread: CC2540

Hi, 

I'm testing the BLE data troughput with the CC2540 keyfob and the USB dongle.

I think my problem is lacking of tools to visualize the BLE data stream. It seemsn that the BTool tags every package at a minimum interval of 10 ms. Even if 4 packages are sent in the save connection event,  they will be displayed as 4 packages with 10 ms delay between each other.

Any one has suggestions about this?

  • 0
    Guru 22270 points

    Hello Xiao,

    Have you tried to view the packets using Packet Sniffer?   You will have to load the USB Dongle with the packet sniffer firmware and view the packets from the KeyFob to another device.   You will be able to save the data to better analyze what you are seeing.

    Thanks,

  • 0 in reply to Greenja
    Prodigy 100 points

    Hello greenja,

    Thanks for your help. I tried the Packet Sniffer before but I didn't understand that I need 3 BLE devices and the USB dongle is just an observer. I think that's why I only get advertising in my sniffer screen : there was only the keyfob and no connexion was established.

    I will get another dongle and try what you said.

    Thanks again!

     

  • 0 in reply to Greenja
    Prodigy 100 points

    Hi greenja,

    I tried with another dongle USB as sniffer for communication between the first USB dongle and a keyfob.

    The sniffer displays the advertising pakets of the keyfob. But once connected, the notifications sent by the keyfob are not displayed at all.

    Any suggestions?

  • 0 in reply to Xiao WANG2
    Prodigy 100 points

    It worked when I changed the Advertising Channel to 37 (2402 MHz) from the Sniffer's interface.

    Thanks.