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AIC3204 CS application question

Benoit St-Jean
Expert 1040 points

Other Parts Discussed in Thread: TLV320AIC3204

Hello, I have a TLV320AIC3204 dev board over USB to my PC running AIC3204 CS application. Let's say that I have an audio path setup between IN1 and HEADPHONE OUT. The path is actually IN1 to ADC, ADC to DAC then DAC to HEADPHONE (this way, I ensure that what I hear is the digitized audio re-converted back to analog). This all works.

Now, using the AIC3204 CS application, I want to enable some of the features in the FEATURES section such as "Adaptive filtering". When I choose this option, it asks me if I want to "Program the device to this feature" and when I choose OK, I lose my audio. How can I hear my audio from my current path described above and apply filtering to it?

Thanks,

Benoit

  • 0
    TI__Mastermind 46195 points

    Hi Benoit,

    Good question. The "Program the device to this feature" will reset and overwrite the codec with new register data. If you click "Cancel" you should be able to use the GUI without overwriting the settings. However, you need to make sure that you are using the right PRB mode (I believe I used the one with 6 biquad filters in playback path).

    One thing you can do is to go to [Installation Folder]\DATA\EVM\AIC3254\FILTERING" (or something similar to that) and look the script in there as a reference. Just make sure that the right PRB is selected in your custom script. Alternatively, you can modify the script in that folder as well.

    Regards,

    J-

  • 0 in reply to J-
    Expert 1040 points

    Thank you, I will give that a try when I get a minute.

    Benoit