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DM368 interrupt fail

Kao Alfred
Prodigy 70 points


When I uesd vpss_int[0] as resize switch buffer,vpss_int[0] is INTSEL1[4:0] as ISIF_INT0.

ARM clock is 486MHz , DDR is 360MHz.

Sensor data is 1080P 30fps, and output video0 is 1080P 30fps.

When  connect the USB storage , the ISR of  vpss_int[0] delay to run.

And recover to normal status in several frame time.

Why ISR function of  vpss_int[0] delay to run?

  • 0
    Guru 31670 points

    Alfred,

    Your question was not really clear. What I could understand is, during capture if you plug in a USB mass storage device, it will temporarily delay the capture.. If I understand correctly, it will be caused by USB driver as well as the kernel, when it tries to mount the USB mass storage file system. Try to insert a USB mouse or keyboard and see whether any difference in behavior occurs?