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320TLVAIC3204EVM-K Board default configuration with AIC3204 CS

MERT CAN OTO
Prodigy 30 points

Hi

I have a 320TLVAIC3204EVM-K board. I try to configure it with the AIC3204 CS. I set my inputs and outputs.

Whenever I remove my USB cable from computer and then fix it again, my EVM returns its default configuration.

Therefore, every time I lose AIC3204 configuration that I want.

Is there a way to save a configuration instead of a default configuration when the power goes off for 320TLVAIC3204EVM-K board?

Mert

  • 0
    TI__Guru**** 189401 points

    Hi, Mert,

    Unfortunately, no, all the registers are RAM-based, so when the power goes away, they go back to default values...

    -d2

  • 0 in reply to Don Dapkus
    Prodigy 30 points

     Hi, Don,

    Thank you for your response.  I understood your answer. 

    Regarding to your answer, I decide to supply USB-MODEVM through J8 connector instead of USB cable. JMP6 is switched according to the datasheet of EVM in order to supply the EVM without USB cable. I use USB cable just for setting the new configuration. 

    Here is the new situation that I face;

    Whenever USB cable is removed, EVM stops working. When USB cable is reconnected, it continues to work. Therefore, the EVM does not return its initial configuration because of the external power supply (Reset pins are always high). However, it seems like MCLK signal is lost whenever we remove USB cable. We need to make the EVM work (not default configuration) without USB connection. Is there a way to solve this problem? Can  DSP(TAS1020BPFB) inside the USB-MODEVM provide MCLK clock signal without USB connection?    

    Kind Regards,

    Mert.

     

     

  • 0 in reply to MERT CAN OTO
    TI__Guru**** 189401 points

    Hi, Mert,

    The TAS1020B isn't a DSP, it's just a USB Audio interface IC. I believe when it loses the USB clock, then it's ability to generate MCLK is lost. I think there might be a work-around, let me check with my colleagues next week to see what ideas they have.

    -d2

  • 0 in reply to Don Dapkus
    TI__Guru**** 189401 points

    Hi, Mert,

    Oops, sorry, I had a quick hallway conversation with one of my colleagues, and he mentioned that the AIC can be configured to work w/o MCLK, so that will probably solve your issue.

    -d2

  • 0 in reply to Don Dapkus
    Prodigy 30 points

    Hi, Don

    it seems like, we handle the problem by applying external clock. Thanks for your help.

    Mert.

  • 0 in reply to MERT CAN OTO
    TI__Guru**** 189401 points

    Hi, Mert,

    You're welcome! Let us know if you have any other questions.

    -d2