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TAS2770EVM: Playback by using external I2S

Part Number: TAS2770EVM

Hi Sirs,

I have two questions.

1. I can't enable TAS2770EVM speaker (J10 or J15 and J20) when I connect a 3rd party SoC to it by I2S interface (SoC data out to TAS2770EVM SDIN) in PPC3.

I measured the SoC I2S waveform and it is normal when playing 48kHz/2ch/16bit (1.536MHz) and 48kHz/2ch/24bit (3.072MHz) wav file.

Which specific items I need to set in PPC3 when using external I2S interface?

2. When using I2S interface to enable speaker, can you tell me which I2C registers need to be configured and what are the values?

Thank you