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Audio example

Lixun XIA67258
Prodigy 20 points

Hello,

I had a project with OMAPL137 for audio application based on the example given by this link http://processors.wiki.ti.com/index.php/OMAP-L137_Audio_Drivers_in_the_DSP_%2B_Linux. The author of this example combined the example project of message queue from DSPLINK directory and the example project of interrupt-based audio loopback from the PSP directory. Recently I have migrated to C6a8168 platform, been working on reimplementation of the prior example for the new EVM from Spectrum Digital. I managed to rebuild and run the message queue example provided with the SYSLINK module. But where can I find more audio examples especially with interrupt handling for this new processor? 

 

Thanks,

Lixun

  • 0
    TI__Expert 4245 points

    Hi Lixun,

    Lixun XIA said:
    s it possible to let the DSP access the McASP rather than using ALSA driver? I noticed that  there are McASP interrupts for the DSP side.The fact is that I don't even need the I2C or SPI to configure my future codecs/ADC/DAC, which will be hard-wired initialized during startup. I just need the McASP data and receiving interrupt  directly accessible from the DSP side. My application prefers a low level data acquisition and playback that are more deterministic than on the ALSA layer.

    It is definitely possible for the DSP to access the McASP and not use the Linux ALSA driver. However, we have not written DSP side drivers for C6A816x and so you would need to write them yourself.

    --Sid