• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 29 subscribers
  • Views 747 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

PCM9211 MPIO_C I2S input

Dimitris Andreou37
Prodigy 50 points

Hi All,

I want to use MPIO_C as an input, however the aforementioned port behaves always as an output, even if i try to change the settings by writing to the relevant registers.

I managed to do the same thing with MPIO_B, but with MPIO_C i have problems as the clocks that i feed interfere with the clocks that the MPIO_C  (shouldn't) generate.

I set up MPIO_C as an input(aux1) and then i try to route it to the main port but with no luck.

Am i missing a setting or something related?

Best Regards,

Dimitris

  • 0
    TI__Guru 57800 points

    Hello, Dimitris,

    Sorry for the delayed response. Could you please share your register configuration so we can check if there is something that is not correctly configured?.

    Regards,

      -Diego Meléndez López
       Audio Applications Engineer

  • 0 in reply to Diego Melendez
    Prodigy 50 points

    Hi Diego,

    Thanks for your reply.

    To make things easier, i use the default settings after power up.

    Based on the datasheet, MPIO_C should be configured as an input.

    Below is a pic of CodecControl:

    When i measure the MPIO_C pins i can observe the following:

    MCLK:

    BCLK:

    LRCLK:

    Data:

    As i said to my previous post, I can control and have MPIO_A as an input and MPIO_B both as input or output.

    It is only MPIO_C that doesnt behave as expected.

    Thanks in advance for your help.

    Best regards,

    Dimitris