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three simultaneous connections example for BLE Stack software new release (V1.1)

Younes Rashidi
Intellectual 275 points

Hi TI Experts,

In the CC2540 Bluetooth Low Energy Software Developer’s Guide (Rev. A)   page 11 is mentioned: 

Central  – scans for advertisements and initiates connections; operates as a master in a 

single or multiple link-layer connections. Currently, the BLE central stack supports up to three 

simultaneous connections.

 

My questions:

1-Is there any example for Central rule with three simultaneous connections?

2- Does TI have any plane for release a stack software for supporting seven simultaneous connections? When?

thanks.

  • 0
    TI__Expert 6840 points

    Hello,

    For an example, just use BTool and USBDongle as master, and then use two or three keyfobs with SimpleBlePeripheral on them.  The default settings should work, just scan and make sure you discover the keyFob devices, and then press connect button in BTool one after the other.

    The limitation to 3 is a resource limitation. There may be support for more than three in the future, but this may require network processor config, or other changes which are not currently ready. 

    Check the release notes , as there are several limitations on using multiple connections.

    If you need more than three, you can look at ANT CC257x solutions, or consider schemes which rotate through connections or use broadcast to send information.

    Br,

    -Greg

  • 0 in reply to GregS
    Intellectual 300 points

    >The limitation to 3 is a resource limitation

    Greg,

    What is/are the resource limitation that prevent more than 3 Fob connections?

    greg sampson

  • 0 in reply to Greg Sampson
    Guru 18625 points

    Hi, I'm not Greg :)

    But I guess the limitations are in terms of timing, since the Bluetooth Frequency Hopping scheme is strict in this aspect and the 8051 have to maintain one for each connection!