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AM3715EVM board Host USB port issue

Edwin Ng
Intellectual 980 points

Hi,

Try to plug in USB web camera to AM3715EVM board USB host, but it seems is not stable, a lot of USB errors are detected for either USB camera or USB Thumb driver:   ehci-omap ehci-omap.0: detected XactErr len 6144/8192 retry 2.           

therefore, I try to use the USB OTG port.  Apart from that, the kernel has to disable TVP514x support and change the deivce mode for OMAP 343x high speed USB to host mode. ten the USB camera work fine.

Any ideal for the USB Host port? because the OTG port will connect to PC for Android ADB to download Apps into the EVM board.

B.R.

Edwin Ng

  • 0
    TI__Genius 15510 points

    The host port is High Speed only. To connect any device that is not HS you need to connect a HS-USB hub and then connect your devices to the hub.

    Steve K.

  • 0 in reply to Steve Kipisz
    Intellectual 980 points

    Steve K,

    Thanks your fast reply, I already connected a Hub between the Host and the camera, but it still not work. somebody said the Hub requied external power source.

    B.R.

    Edwin Ng

  • 0 in reply to Edwin Ng
    Intellectual 980 points

    I insert a High speed Hub between the AM3715EVM Host USB and the USB camera, it still not work? I useing FroYo DevKit v2, any ideal

    B.R.

    Edwin Ng

  • 0 in reply to Edwin Ng
    Intellectual 980 points

    Hi,

    I insert a Hi speed USB hub between the AM3715EVM Host sb port and the USB camera , then console will show below message it seems work. but when run the Camera application, the LCD prompt a message "The application Camera (process com.android.camera) has stopped unexcectedly. Please try again."  any body can help me? thanks

    After Connect to the Hi-speed Hub console show below message

    usb 1-2: new high speed USB device using ehci-omap and address 4

    usb 1-2: New USB device found, idVendor=05e3, idProduct=0608

    usb 1-2: New USB device strings: Mfr=0, Product=1, SerialNumber=0

    usb 1-2: Product: USB2.0 Hub

    hub 1-2:1.0: USB hub found

    hub 1-2:1.0: 4 ports detected

    usb 1-2.1: new high speed USB device using ehci-omap and address 5

    usb 1-2.1: unable to read config index 0 descriptor/all

    usb 1-2.1: can't read configurations, error -110

    usb 1-2.1: new high speed USB device using ehci-omap and address 6

    usb 1-2.1: New USB device found, idVendor=05e3, idProduct=0608

    usb 1-2.1: New USB device strings: Mfr=0, Product=1, SerialNumber=0

    usb 1-2.1: Product: USB2.0 Hub

    hub 1-2.1:1.0: USB hub found

    hub 1-2.1:1.0: 4 ports detected

    After USB Camera connect to the Hub console show below message

    usb 1-2.1.3: new high speed USB device using ehci-omap and address 7

    usb 1-2.1.3: New USB device found, idVendor=eb1a, idProduct=2761

    usb 1-2.1.3: New USB device strings: Mfr=0, Product=1, SerialNumber=0

    usb 1-2.1.3: Product: DEF-299 Camera

    uvcvideo: Found UVC 1.00 device DEF-299 Camera (eb1a:2761)

    B.R.

    Edwin

  • 0 in reply to Edwin Ng
    Intellectual 585 points

    I have a same question with you too, Please tell you how to  make it work ?