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  • Resolved

Linux/EVMK2G: How to control Audio daughter card with K2G?

Part Number: EVMK2G

Tool/software: Linux

Hi,

I am using K2G with audio daughter card,

but i am unable to control its inputs and output with linux os which came with the K2G.

Please tell me..

How to control inputs and outputs of the K2G audio daughter card, for example mixing of two inputs, using aplay and arecord,

How to use audio daughter card drivers?

I have already posted a similar question regarding this thread but i got no response from the K2G team.

I also tries the basic example of audio daughter card but it is not working.

  • Hi,

    I've notified the sw team. They will post their feedback directly here.

    Best Regards,
    Yordan

     


     Please make sure you read the forum guidelines first.

  • Currently, I don`t believe that the Processor SDK Linux for K2G supports this hardware interface. The audio daughter card example was meant to be used by bare-metal and TI RTOS users or users of PRocessor SDK audio (RTOS based).

    to enable this with Linux SDK, you will need to update the pinmux files enable the two instances of McASP and also have I2C drivers configured to setup the PCM1864. To the best of my knowledge, this is not currently supported but you can refer to the Processor SDK RTTOS implementation in component called audk2g for setting up the audio daughtercard.

    Regards,
    Rahul

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  • In reply to Rahul Prabhu:

    Can we have additional ports for spdif with evmk2g through some external extension board or any other means ?

    And is there any exemplar code for basic demonstration of evmk2g audio daughter card functions ?

  • In reply to Sagar Lakhani:

    Sagar,

    Sagar Lakhani
    Can we have additional ports for spdif with evmk2g through some external extension board or any other means ?

    No, we can`t support additional SPDIF ports with current hardware. The only other extension card that I am aware of which has been interfaced with audio daughter card and K2G EVM is the HDMI repeater board that is available here:

    http://www.mds.com/products/hdmivideo/

    Sagar Lakhani
    And is there any exemplar code for basic demonstration of evmk2g audio daughter card functions ?

    Currently the baseline SDK contains analog loopback code as part of the AUDK2G addon component

    http://processors.wiki.ti.com/index.php/Processor_SDK_RTOS_AUDK2G_AddOn 

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  • In reply to Rahul Prabhu:

    Can you please provide any reference document for routing audio input from adc audio jack and output to USB?

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