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C6713 Audio

Navaneeth Karthikeyan
Intellectual 885 points

I would like to send two different outputs to left and right port of lineout /leftout. 

Can you kindly let me know how to should i program the device to do that. 

  • 0
    TI__Guru* 81335 points
    Hi Navaneeth,
    Moved this thread over correct forum for faster response. Thank you for your patience.
  • 0
    Mastermind 6115 points
    Hi Navaneeth,

    How you are generating two outputs ?
    Have you added additional hardware(customized) or using custom board to take two inputs ?
    As per my understanding this requirement of yours is not possible on an EVM board.
  • 0
    TI__Mastermind 35645 points

    Hi,

    Thanks for your post.

    The TLV320AIC23B has line inputs for the left and the right audio channels (RLINEIN and LLINEIN). Both line inputs have independently programmable volume controls and mutes.

    The TLV320AIC23B has stereo headphone outputs (LHPOUT and RHPOUT) and The DAC outputs, line inputs, and the microphone signal are summed into the line outputs. These sources can be switched off independently. All these needs to be configured appropriately in proper operating modes through AIC23 codec set of registers which can be reviewed through codec datasheet as below:

    http://www.ti.com/lit/ds/symlink/tlv320aic23b.pdf

    Please check sections 3.2.1, 3.2.2, 3.2.3, 3.2.4 from the above datasheet.

    Also, please check the below E2E post to program the AIC23 codec for the left and right inputs:

    https://e2e.ti.com/support/dsp/tms320c6000_high_performance_dsps/f/115/t/215800#pi317286=2

    while (1) {

    /* Read sample from the left channel */
    while (!DSK6713_AIC23_read(hCodec, &IN_L));
    /* Feeding the input directly to output */
    OUT = 500*IN;
    while (!DSK6713_AIC23_write(hCodec, OUT_R));
    }
    /* Close the codec */
    DSK6713_AIC23_closeCodec(hCodec);
    }

    Thanks & regards,

    Sivaraj K

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  • 0 in reply to Sivaraj Kuppuraj
    TI__Mastermind 35645 points

    Hi,

    I would reecommend you to go through the lab doc as below which involves programming the TMS320C6713 DSP Starter Kit (DSK) module:

    http://ecee.colorado.edu/~fmeyer/class/ecen4532/lab6.pdf

    You can also find a simple program from

    Wiki: processors.wiki.ti.com/.../File:C6713_audio_minimal.zip

    You could also download the board support files from specturn digital webite on the prerequisites on the wiki below:

    processors.wiki.ti.com/.../C6713DSK_in_CCSv5

    Thanks & regards,
    Sivaraj K

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