DaVinci™ Video Processors

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DaVinci™ Video Processors

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Related Posts

  • Forum Post: qdma can't access on chip memory ( L2 RAM)

    peng wang
    hi,experts! I have a codec engine examples doing video encode. In my codec, I use qdma to copy data between L2 RAM and DDR so that it can speed up. The problem is qdma transfer between L2 RAM and DDR, it works wrong.but when qdma is between two DDR address it works right. I try the way TI emploree...
    on May 24, 2012

  • Forum Post: Error in capturing the AUDIO using the alsa driver

    charan teja reddy
    Hi everyone, I had opened a pcm device on DM816X board using the API snd_pcm_open (&capture_handle, "hw:0,0", SND_PCM_STREAM_CAPTURE, 0) to capture the audio.But i am getting (input/output) error when i am trying to capture using this pcm port.Can any one please provide the pointers to...
    on Aug 27, 2012

  • Forum Post: RE: Issues with MCASP on Linux/DM8168

    Mike Sim
    Hi Shawn, Did you tried num_serializer to 1 ? (Although I tried with no effect) I'm working on DM8168 McASP with AIC23, base on DVRRDK3.50.00.05. Problems were found at capture and playback: 1. playback program halt at snd_pcm_mmap_writei after several writes. No signal at AXR pin but also...
    on Feb 19, 2013

  • Forum Post: Issues with MCASP on Linux/DM8168

    Shawn Rainey1
    I'm having similar issues to the user who posted here http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/717/t/229575.aspx After reading through that thread and following suggestions, I'm still having issues. I'm getting input/output error from arecord and 'ALSA sound...
    on Feb 18, 2013

  • Forum Post: Problems when porting SSM2603 on DM8168 platform (DMA not working?)

    phil chen
    Dear all, I am working on porting Analog Devices SSM2603 audio codec (instead of AIC3x) connected to MCASP2 on our customized board. Software development is based on DVRRDK 03.50.00.05. I followed the porting guide to modify Linux kernel code: http://processors.wiki.ti.com/index.php/TI81xx_PSP_Porting_Guide#Audio_driver_...
    on Feb 23, 2013

  • Forum Post: EZSDK5.05 memory map

    echo yang
    I'm using EZSDK5.05 to develop my 8168evm board.But I can only find http://processors.wiki.ti.com/index.php/EZSDK_Memory_Map#Memory_Map_in_the_current_EZSDK_.28version_5.02_onwards.29 describing the memory map. Where can I find memory map details about EZSDK5.05. I'm focusing on the v4l2 module...
    on May 11, 2013

  • Forum Post: memory allocation for v4l2

    echo yang
    Hello, I am working with dm8168evm and ezsdk5.05.And we are trying to capture 720p picture and pass the streams to the codec engine. But I am not sure how to get continous memory for v4l2. Do I have to memmap the cmem pool memory to the user space?And how the frameQ manage video frames? I am not...
    on May 17, 2013

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