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TLV320AIC3254EVM-K: How to configure the TLV320AIC3254EVM-K to achieve I2S digital audio on J22

Part Number: TLV320AIC3254EVM-K
Other Parts Discussed in Thread: LMX2571

Hi Everyone,

I need help to configure the TLV320AIC3254EVM-K to achieve I2S digital audio on J22.

Input is from analog input for example IN1_L.

1. Frequency, f = 1kHz

2. Input level = 500mVpp

Please advise.

Thanks and best regards,

Yaakub

  • Hi, Yaakub,

    The TLV320AIC3254EVM-K CS software features a couple of example scripts used to configure the device to record audio and stream it through I²S output. I would recommend you to take a look to those scripts as a starting point to configure the device. One thing to mention is that J22 is located in the bottom of the board, but the I²S lines are accesible in header P22 as well. 

    If you are using the EVM with an external I²S source, you can use the jumper J14 to access the I²S lines of the codec, in order to make this, you should configure the SW2 switch as indicated below.

    Could you please share more information about the configuration you are trying to achieve with this EVM?.

    Best Regards,

      -Diego Meléndez López
       Audio Applications Engineer

  • Hi Diego,

    Thanks for your reply.

    I still not very clear; where can I get the example scripts?

    I not able see image/link as you mentioned to configure SW2, please resend it.

    For your information; I plan to use TLV320AIC3254EVM-K to get I2S data stream for the LMX2571 modulation evaluation test.

    Best regards,

    Yaakub
  • Hi, Yaakub,

    Thanks for the feedback. I am attaching the image again, I don't know why it was not uploaded properly before.

    The example scripts can be found in the TLV320AIC3254EVM-CS software, once it is executed, you shall be able to find the recording scripts as indicated below:

    Best Regards,

      -Diego Meléndez López
       Audio Applications Engineer

     

  • Hi Diego,

    Thanks again for your reply.

    Do I need to cut and paste the scripts somewhere in CS application or I just load it to get the I2S output at P22 (with audio input at IN1)?

    Please advise.

    Best regards,

    Yaakub
  • Hi, Yaakub,

    You can either click on LOAD button of the Audio Recording tab or copy the script and paste it in the Command-line interface tool to load the configuration.

    Best Regards,

      -Diego Meléndez López
       Audio Applications Engineer