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TLV320AIC3104: No audio output

ArTzy
Genius 13999 points
Part Number: TLV320AIC3104

Hi Expert,

Seeking advise on this. Posting this query on behalf of my customer as he is using a freemail accnt:

I am using TLV320AIC3104IRH, we are using HPLOUT HPLCOM HPROUT HPRCOM as output and I checked reg value in the below picture, all is OK.

Already shared its EVM user's guide and shared THIS related thread but to no avail.

Thank you.

Regards,
Archie A.

  • 0
    TI__Mastermind 23155 points

    Hey Archie,

    I know you said you checked the registers already, but it'd be very helpful if we could have the register dump. Also how is the data being input to the codec?

    Best regards,

    Jeff

  • 0 in reply to Jeff McPherson
    TI__Genius 13999 points

    Thanks Jeff, for supporting.

    By looking at this picture:

    this is the default reg value, and now it is in working order. As you can see, when changed the reg38 default value as 0x04, default is 0x00. Don't know why.

    For your assistance.

    Thank you.

    Regards,
    Archie A.

  • +1 in reply to ArTzy
    TI__Mastermind 28815 points

    Hello,

    These registers above are showing none of the audio paths are powered or enabled.

    No input/output is connected to the ADC or DAC path.

    Can you recheck and pull the correct settings so we can review?

    Basically you need to ensure the path is set correctly based on the register settings.

    I have attached here a block diagram of this device with its register address that you can refer to for your configuration.

    Regards.