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TI Home » TI E2E Community » Support Forums » Digital Signal Processors (DSP) » OMAP™ Processors » OMAP-L13x, AM1x and C674x Processors Forum » Audio issues on OMAP L138 (DSP C6748)
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    Audio issues on OMAP L138 (DSP C6748)

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    Francesco Faccenda
    Posted by Francesco Faccenda
    on Apr 12 2012 06:18 AM
    Prodigy50 points

    Hi, I'm looking for a simple example about how to use the DSP processor C6748 of my OMAP L138 for AUDIO issues. Since I would like to work in real-time, which codec do I  need? I would appreciate an example about which codev to use and how to initialize it for the purpose. I can't find any template available. Thanks for helping.

    Francesco 

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    • Rahul Prabhu
      Posted by Rahul Prabhu
      on May 03 2012 11:06 AM
      Genius15535 points

      Francesco,

      A simple audio example is included in the BIOS PSP of the platform. You can download the BIOS PSP for OMAPL138 from here:

      http://software-dl.ti.com/dsps/dsps_registered_sw/sdo_sb/targetcontent/psp/bios_psp/index.html

      Under pspdrivers_xx_xx_xx\packages\ti\pspiom\examples\evmOMAPL138\audio, you should find an implementation of the sample application for the
       demonstration to play audio through the audio interface layer.

      If you are looking for an ARM+DSP SoC example, you can find that in the DVSDK kit for the platform. This is a little more complex example that uses DSPLINK layer to program the DSP from the ARM. Details of this implementation can be found on this wiki:

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

      For recommendations regarding audio codecs refer to the OMAPL138 Complementary Product recommendations mentioned here:

      http://processors.wiki.ti.com/index.php/OMAP-L1x8_Complementary_Products#Audio_Input.2FOutput

      Hope this helps.

      Best Regards,

      Rahul


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