1 Reply Latest reply on Apr 6, 2018 5:26 AM by abga

    UVC Problem of more or less number of data send to application

    ErenTansel

      Hi,

       

      I have a system which sends pixel data from sensor to UVC.

       

      I got timeout errors on LabView and black screen on VirtualHub without any frame rate representation.

       

      Also, Uart-debugger always gives 0 frame count and 0 buffer count.

       

      My sensor sometimes sends more or less data in a frame and line interval of FV and LV. (sends 1000-1500 pixel data when pixel width is descripted as 1280 pixel .)

       

      Can this unstability is the reason of my timeout and uart errors on UVC application?

        • 1. Re: UVC Problem of more or less number of data send to application
          abga

          Hi,

           

          I got timeout errors on LabView and black screen on VirtualHub without any frame rate representation.

           

          -- This happens because your Application is not receiving the data for a specified amount of time. As you already mentioned that your sensor sometimes sends more or less data, may be UVC driver is discarding the packets which are not in the specified format. Please mention the video format that you are using.

           

          Uart-debugger always gives 0 frame count and 0 buffer count

          -- Could you please tell me where in the code you are calculating frame and buffer counts.

           

          Thanks & Regards

          Abhinav