Studio Bluetooth

[MaMi_1707981]

According to the DATA sheet of CYW-20706,  Left-channel data is transmitted when I2S WS is low, and right-channel data is transmitted when I2S WS is high. Is it correct ?

Our customer says the opposite result is observed.

[Envorinment]

    CYBT-343026-01

    WICED Studio 6.2

    Profile/role: A2DP/source

    Peer devices: at least two products. One is LBT-PAR500 made by ELECOM.

[Owen_Zhang123]

The description in the datasheet is correct.

Could you let us know how does the customer observe the error?

[MaMi_3520196]

HOST sends L-channel only data, i.e. all '0' for R-channel.

Then,  we check it on peer device(A2DP sink headset).

[Owen_Zhang123]

Does the host act as I2S master? Did the customer check if the host sends data in right format?

[MaMi_1707981]

The host acts as I2S master. CYW20706 acts as I2S slave.

It looks I2S format is correct.

According to the custommer's report,  the audio stream is sent correctlly except L/R channel is wrong.

[MaMi_1707981]

Please find the attached log.

It is a signal wave when only L channel is sent.

Could you double check it ?

[MaMi_1707981 · Accepted solution]

Hi Xinghao,

Thank you for supporting.

I contacted a local FAE.

This issue will be fixed.

Thanks,

Mizuno