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TDA4VM: Panoramic image confusion

xf t
Prodigy 50 points
Part Number: TDA4VM

Hi,TI team,

We used the TDA4VM platform to achieve 2D and 3D panoramic image output, but there was an accidental problem. When the problem occurred, the entire panoramic image became confused. During this period, we checked the image output by the camera, memory usage, and GPU real-time status, and found no abnormalities; Have you ever encountered such problems? Do you have any suggestions for troubleshooting this problem?

  • 0
    TI__Mastermind 36307 points

    Hello,

    We have not encountered this issue specifically without errors occurring in our driver/OS or something else.

    Can you elaborate on the issue? If you restart the board, is everything back to normal?

    Have you been able to reproduce this issue again? If so, are you running a particular SDK application, or your own application?

    Finally, what SDK version are you using.

    Thank you,

    Erick

  • 0 in reply to Erick Narvaez
    Prodigy 50 points

    Hi Erick

    Thank you for your reply.

    The chaotic state of the image changes dynamically. If restart the board, everything back to normal. When issue occur, sometimes it disappear automatically after running for a period of time without restart the board.

    We have tried to reproduce the issue, but has not been successful yet, and we are still trying.

    We are running our own applications.

    The SDK we use are as follows:

    Processor SDK RTOS J721E 08_00_00

    Processor SDK Linux for J721e 08_00_00

    In addition, according to the changes in the new version of RTOS SDK, we patched the Processor SDK RTOS J721E 08_00_00.

  • 0 in reply to xf t
    TI__Mastermind 36307 points

    Hello,

    Thank you for your response. So it seems that this issue is not producing logs in your terminal, correct? Usually, for a graphics driver issue, there is some "crash" associated with it that can cause similar distortion/abnormal behavior. But can you confirm you are not seeing logs in the terminal?

    This might be related to a system issue, where the data is not able to meet the real-time requirements or something related. We can explore both the GPU related issues and the system-related issues.

    For the GPU debug, how easy can you reproduce this? We have some debug information that can be useful in determining if the GPU has an error. I can share the steps to gather this, but we will need the issue to reproduce while we are capturing the logs.

    For the system debug, we can try a few things. If you could help me with the following queries:

    - Do you know what the bandwidth of your application is? Perhaps we are nearing the bandwidth limit and stalling on some memory accesses.

    - Are there any other applications running concurrently? Can you reproduce the issue if this is the only application running on the system?

    Thank you,

    Erick