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davinci preview engine hangs on DM644x

krinali shah
Expert 1290 points

Hi,

        I have streaming application with DM644x. My sensor captures raw data and I send it to preview engine for raw to YUV 4:2:2 conversion. My problem is preview engine hangs after previewing random number of frames.

          As per the DM644x errata Advisory 2.3.37 work around, I have disabled the CCDC video port(FMTCFG.VPEN = 0) while using the Preview Engine. Preview engine is also configured in one shot mode and getting data from memory. But still application gets hanged in previewer.

         Any help will be highly appreciated.

Thanks,

Krinali



  • 0
    Expert 1290 points

           As per the DM644x errata Advisory 2.3.37 work around, I have disabled the CCDC video port(FMTCFG.VPEN = 0) while using the Preview Engine. And H3A is already disabled as we are not using it.

    Please provide your inputs.



    Thanks,

    Krinali Shah

  • 0 in reply to krinali shah
    Expert 1290 points

    Hi,

                   My application does not hang any more. I have configured the preview engine in continuous mode and it takes data directly from ccdc port. The path is  CCDC-Preview-Memory.

    But now the image contains pink lines as shown in the inserted files. What could be the reason of this pink lines on an image?

                    Please provide some inputs.

    Thanks,

    Krinali Shah