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Classic Bluetooth audio channel

rongal
Prodigy 100 points
Other Parts Discussed in Thread: CC2564C, CC3200AUDBOOST

I need to create a bi-directional bluetooth link that will interface classic bluetooth audio (possibly via A2DP or similar standard profile) received from a smart phone, and issue (receive) analog audio from a device that is similar to (but not actually) a headphone with analog loudspeaker and microphone.

The solution is not BLE oriented!

What components and system solutions are recommended?

  • 0
    TI__Mastermind 27080 points
    You would need a CC2564C EVM along with a MSP432 or similar MCUs..
    Please, check these links:

    processors.wiki.ti.com/.../CC256x
    www.ti.com/.../swru497.pdf

    Thanks
  • 0 in reply to Hari Nagalla
    Prodigy 100 points

    Thank you, your response was very helpful.

    In order to go forward, I would appreciate your input on the following: 

    1.  Your second reference, swru497.pdf, recommends referring to the A3DP demo sink and source wikis.
    When I try to access them, I get a timeout error message that does not allow me to access those wikis.
    Is there a reason I cannot access them?  Are there alternative sites by which I can access these demos?

    2.  In that same reference document, there is mention of an additional module, CC3200AUDBOOST, for audio input and output.
    I am not clear on the reason for the necessity of that additional module:
    Does the CC256XCQFNEM module not provide for analog input and output signals?

    3.  What would I need to prepare in order to interact between the CC2564C (or its CC256XCQFNEM module) and an android smart phone?
    Do I need any dedicated software on the phone to interact (link and transfer data) with the CC256XCQFNEM?
    Are examples of such software available on line, in wikis or other sites?

    Sincerely yours,

    RG

  • 0 in reply to rongal
    TI__Mastermind 28285 points

    Rongal,

    1.) The links should work now. I just tested them.

    2.) The CC2654C has a I2S interface, but you will need a audio front end device (Codec) to gather raw Microphone data, or an Amplifier to playback Audio through a speaker. These are the devices the CC3200AUDBOOST has populated on it.

    3.) You should be able to use our SDK, and build off one of the examples. Please see: http://www.ti.com/tool/TIBLUETOOTHSTACK-SDK

    BR,

    Vince