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Current LBE Stack only for Point to Point ?

Christian Joly
Intellectual 570 points
Other Parts Discussed in Thread: CC2540

I am writing an application using the CC2540 and it seems that once one link is established between the keyfob and the usb dongle. I cannot establish an additional link between another keyfob and the dongle. Once the link is established, the GAP discovery does not detect any new peripheral and even if you try to force a connection using the address of the device, GAP respond with a "There are no resource available" status code.

 

That makes the current LBE apps very limiting. 

 

Any feedback on this ?

 

Christian

  • 0
    TI__Expert 6840 points

    Hello,

    You are correct. The CC2540 stack (v1.0) only supports one connection currently.  There are plans to support more connections from the master in the future.  The CC2540 is targeted more for the peripheral role (KeyFobs, etc), while a phone type dual mode chip (BT & BLE support) would target support for connecting to multiple peripherals.  One of the main reasons to add these connections on the CC2540 would be to enable this type of development with the 2540 mini-kit before phones are readily available. TI also will supply these phone dual mode solutions in the near future.   

    One possible solution right now might be to switch between devices by connecting and disconnecting.  This could probably be done several times a second.

    Br,

    -Greg

  • 0 in reply to GregS
    Intellectual 570 points

    Greg,

    What is the timing to get a multiple connections update of the stack ? or what is the timing to get a dual mode chip and USB dongle equivalent from TI ?

    Most people will want to use LBE in a multiple peripheral environment and for my application, I cannot switch between devices as the goal is to be able to read from the ADC at 100s of samples per second from multiple devices


    Tx

     

    Christian

  • 0 in reply to Christian Joly
    TI__Expert 6840 points

    No time frame for this yet with the CC2540. I'm not sure about the timing for an equivalent solution from TI.

    Sorry, I can't be more help on this.   If I find out more, I'll post it here.

    -Greg