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Question, i.MX6Q USB data transfer is wrong while playing video

Question asked by AVNET JAPAN FAE (team share account) on Apr 22, 2015
Latest reply on Apr 24, 2015 by Yuri Muhin

Dear team,


I would like to ask about the issue of USB data transfer which my customer faces.

On the customer’s board, USB camera is connected to i.MX6Q. And they use Android4.0(based on your androidBSP) for OS.

They saw the camera data seemed to be corrupted or missing when i.MX6 was playing H.264 video at 60fps(the resolution was QVGA).

When the frame rate of playing video was 30fps, the USB camera’s data seemed to be OK.

This phenomenon of USB camera data is also seen when Hello-gl2, sample program included in NDK, is executed on i.MX6.

From the above, they believe the cause of this issue is related to the internal BUS load of i.MX6.

Do you have any ideas on the cause of this issue?

On the customer’s board, The USB camera data needs to be captured correctly even when the video is playing at 60fps simultaneously.