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Original question:

TLV320AIC3120EVM-U: Using TLV320AIC3120EVM-U with an external MCU

TLV320AIC3120EVM-U: TLV320AIC3120EVM-U: I2S and I2C

Nikhil Bhat
Prodigy 180 points
Part Number: TLV320AIC3120EVM-U

Hi,

We wanted to Interface  I2S, I2C, and GPIO1 Between FPGA Board  EVM.

This post: e2e.ti.com/.../tlv320aic3120evm-u-using-tlv320aic3120evm-u-with-an-external-mcu

Suggests that I2S traces must be cut in order to test I2S.

Instead, can we Unplug USB and Provide all powers( 5v, 3.3v, and 1.8v) along with I2S, I2C, and other required lines. Would this work?

Is there any other approach to control I2S via an external Controller, without damaging the board (cutting traces)?

  • 0
    TI__Mastermind 22685 points

    Hi Nikhil,

    Today is a TI Holiday and our experts are out of office. Please give us another day to look at and answer your question. For record keeping purposes please do not reply to this message unless 48 hours have passed without a response.

    Thank you for your patience,

    Jeff

  • 0
    TI__Mastermind 28635 points

    Hi,

    You can pull this I2S_ENABLE pin high to disable the I2S from the TAS1020 and thus allowing you to connect I2S bus to external host.

    Your option is possible but it might need more signals from external to be connected to the codec part.

    Regards.