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Original question:

TUSB2046B: Cant get image from a usb camera, only get black image and 120x160 resolution

TUSB2046B: TUSB2046B: Cannot get image from USB Camera

Alexander Pleshkin
Prodigy 70 points
Part Number: TUSB2046B

Hi.

I have a problem with USB hub TUSB2046B. I need to connect of-the-shelf USB camera through USB hub IC (TUSB2046B is using), but cannot get image from it. USB camera is detected by Windows, but I get black screen instead of image on the screen. Any other devices like mouse, storage devices work correctly. Camera by itself works correctly when connected directly to laptop (without hub) too. 

I have found similar problem (seems like i'm not the only person faced this issus) on the forum, unfortunately I cannot see the answer, because it was send by mail.

https://e2e.ti.com/support/interface/f/138/t/618594?TUSB2046B-Cant-get-image-from-a-usb-camera-only-get-black-image-and-120x160-resolution

Do you have any solutions how to make camera work with hub?

  • 0
    TI__Guru 60870 points

    HI Alexander,

    Can you confirm if the camera supports USB FS (12 Mbps)  operation?  Many cameras or their software cannot work with the lower throughput and just show a black screen.

    Regards,

    JMMN