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TLV320AIC3262: How to configure the PDM Input on the TLV32AIC3262EVM-U ?

Simon Gosset
Intellectual 315 points
Part Number: TLV320AIC3262
Other Parts Discussed in Thread: PUREPATHSTUDIO

Hi,

I would like to configure the TLV32AIC3262EVM-U PDM input on the ASI#2 and then "stream" the data to the ASI#1 wich will output a TDM signal.

For now i've already succeded in configuring a "stream" between ASI#2 and ASI#1 but the data that received ASI#2 were in I2S using PurePath Studio.

Now i would like to use the PDM input on the ASI#2.

I'm not able to change the input of the Digital Microphone Menu using the CodecControl software. It always switches back to "L Ch GPI1 Rising Clk, R Ch GPI1 Falling Clk".

If I manage to change it, what are the other required setting important to use ?

Thank you for your help.

Simon.

  • 0
    Intellectual 315 points

    I found the solution here  for the codec configuration and here for the PurePathStudio Script. The codec configuration was done using the register inspector in CodecControl Software.

    There is no need to "stream" the content to the ASI#1. It is possible to convert the PDM directly on the ASI#1.

    Simon.