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CC2564C: 10 Simultaneous BLE connections using CC2564C

Nishith Goswami
Prodigy 160 points

Part Number: CC2564C

Hi

We are working on BLE hub base project where in we are required to connect   >8 BLE peripheral devices with the centre BLE hub.

I read CC2564c technical notes wherein it is mentioned that it is supporting 10 simultaneous connections.

But when I am trying to read CC2564c application notes I found description as,

Theoretically, the CC2564C can simultaneously support up to 10 devices (any combination of central and peripherals LE connections). However, when considering real-life scenarios and the Bluetooth specification bandwidth restrictions TI recommends the following conditions for the CC2564C device:

• Acting as a central device for up to three peripherals

• Serving as a peripheral to one central device

Now I am confused if CC2564C will serve my purpose of connecting it to 8 peripheral devices.

Please help.

  • 0
    TI__Mastermind 27150 points
    Our product expert will get back shortly.

    Thanks
  • 0
    TI__Expert 5285 points
    Hello Nishith Goswami,

    The CC2564C can support up to 10 devices.

    This scenario is very complicated as it is.
    The only option from a time management point of view is to become a central device for up to 10 devices (however the interval parameters become very important here and need to be tweaked specifically in order for this to work.
    In case you need a very fast response time from each one of the ten devices this will probably be a problem.

    Once you add a peripheral role it complicates things because we no longer are in charge of the time line and have to align ourselves to the central master line for that specific LE connection.

    In your case a scenario with no peripheral role and acting as a central to 8 peripherals is feasible however you need to make sure the intervals for each BLE connection are such that all can get enough bandwidth without being starved which will cause disconnections.

    BR,
    Chen Loewy