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Four SOURCES to a single HUB possible?

RER_Consulting
Prodigy 140 points
Other Parts Discussed in Thread: CC8530, CC8520, PUREPATH-WL-CFG, CC2590

In the TI literature, I see numerous block diagrams of a system with a HUB transmitting 4 independent audio channels to 4 independent RECEIVERS.

I don't want to purchase a bunch of eval kits, only to then discover that what I am trying to accomplish is not possible. So, I have a number of questions first ...

  1. Is it possible to do this to reverse? So, having four independent SOURCES transmitted back to a single HUB, yielding 4 independent audio output channels at the output of the HUB for mixing/recording?
    1. I think this may be where the SOURCES (protocol slaves) would be set to 12-15? 
    2. If that is correct, what would the HUB (protocol master) be set to?
  2. I assume each node (SOURCES and HUB) would need to be a CC8530?
  3. What configurations should be used in the SOURCES/HUB in the TI Configurator Software?
  4. If there is not a standard configuration, is it possible to develop one? At a high level, could you describe what we will need to accomplish?
  5. Regarding your suggestions for above, would there be any difference when just a single SOURCE is used (or, 2, and 3 SOURCES) instead of all four SOURCES? For instance, should the system know how many SOURCES are connected to the network, and use Dynamic Audio Channel Selection in those situations?
  6. Can this be prototyped using the Eval Kits. What would be required (four CC85XXDK?)?

Thank you!

  • 0
    Prodigy 140 points

    I would like to clarify the nomenclature in my question with a quick drawing:

    Please address the questions above.  If this is possible, then it would be greatly appreciated if you could create and send the configuration files necessary.

    Thanks you!

  • 0 in reply to RER_Consulting
    TI__Expert 3240 points

    Hi,

    I have some answers for you:

    Is it possible to do this to reverse? So, having four independent SOURCES transmitted back to a single HUB, yielding 4 independent audio output channels at the output of the HUB for mixing/recording?

    It is possible to have 4 mono slaves each streaming 1 audio channel to a master device.

    I assume each node (SOURCES and HUB) would need to be a CC8530?

    No, CC8520 can be used for any device that will not handle more than 2 channels, e.g. if the slave is a mono/stereo output or input satellite it can be a CC8520.

    If there is not a standard configuration, is it possible to develop one? At a high level, could you describe what we will need to accomplish?

    The devices are configured using the tool PurePath Wireless Configurator, which can be downloadable from:http://www.ti.com/tool/purepath-wl-cfg
    This tool comes with example configurations that can be used to program the devices with a “standard” configuration.  

    Regarding your suggestions for above, would there be any difference when just a single SOURCE is used (or, 2, and 3 SOURCES) instead of all four SOURCES? For instance, should the system know how many SOURCES are connected to the network, and use Dynamic Audio Channel Selection in those situations?

    The master device always knows how many slave devices that are connected at any time. The number of protocol slaves affects the robustness of the system, a system with only 1 slave device will be more robust than a system with 4 slave devices.

    Can this be prototyped using the Eval Kits. What would be required (four CC85XXDK?)?

    This can be prototyped with the CC85XXDK, each kit includes 2 evaluation boards, so with 3 kits you can set up 1 master and 4 slaves each consisting of a CC85xx  evaluation module (with or without CC2590 range extender) + PurePath wireless evaluation board.

    Best regards,
    Johan

  • 0 in reply to Johan Gustafsson
    Prodigy 140 points

    Thank you!

    I have purchased the eval boards.  I'm sure I will have more questions later ...

  • 0 in reply to RER_Consulting
    Prodigy 110 points
    HI there,

    I've see this post with interest and wondered if you could answer the following from: e2e.ti.com/.../407626

    How are the four received streams (multiplex) presented from the cc8530 HUB?

    Kind regards

    James.