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CC2564: [A3DP] Streaming is not working properly

Dong Won Lee
Intellectual 670 points
Part Number: CC2564
Other Parts Discussed in Thread: CC256XMSPBTBLESW

Hi,

I'm testing A3DP & SPP, but this seems to be a problem only for A3DP.

I have implemented an A3DP SNK board and are in the process of streaming music with my smartphone.

To test the robustness of the A3DP Demo, I am experimenting repeatedly connecting and disconnecting the board and smartphone.

If the connection is repeated about 2 ~ 3 times, the following error occurs.

and I play the music with this error, the following message will be output continuously.

why the error message occurs?

and I want to know why streaming is not working properly and whether the etAUD_Encoded_Audio_Data_Indication message continues to be output.

  • 0
    TI__Mastermind 27080 points
    Can, you provide details on which host and Blutopia stack version being used? Also, how are you, disconnecting and reconnecting? Can, you give the sequence of operations performed?

    Thanks
  • 0 in reply to Hari Nagalla
    Intellectual 670 points

    Hi,

    I am not familiar with the meaning of 'host' you just said when you started this field, but I am using MSPF5335 if it means MCU. The Bluetopia version is CC256XMSPBTBLESW 1.5 R2.

    The A3DP Multiroom Demo wiki did not explain how to disconnect the Master-Slave connection.

    So I started looking for ways to programmatically disconnect.

    After connecting the SPP and Multiroom at the same time and disconnecting the SPP connection, they found that Multiroom was also disconnected.

    The sequence of operations is as follows:

    1. A3DP Multiroom connection (SpeakerA : Multiroom Master / SpeakerB :  Multiroom Slave)

    2. SPP connection

    3. SPP disconnection (use CloseRemoteServer())

    4. A3DP Multiroom disconnection

    5. A3DP Multiroom Re-connection (SpeakerA : Multiroom Slave / SpeakerB :  Multiroom Master - change Master/Slave role)

    6. Error occurs