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DM368 USB not detecting

DM 368F is not recognizing the USB device or host. We are using kernal 2.6.18 and 2.6.37. With both kernals DM368 is not detecting. Hardware looks alright. Can you please advise the steps to over this problem.

Yadagiri

  • Hi Yadagiri,

    The 2.6.37 Kernel is widely used and it supports connection of USB devices or host. I suggest you as the first step of investigating the issue to search in dmesg log for something about USB event. If there is nothing revise the kernel config file and verify whether the USB is enabled. If the config file is correct I think the issue is caused by some hardware problem or broken connecting lines.

    BR
    Tsvetolin Shulev
  • Hi Mr.Shulev,

    We checked config file and USB is enabled. When searched in dmesg log no usb event recorded. Checked D+ ,D-, USB_VBUS, USB_ID signals they are reaching properly.  But when  monitored D+ is always HIGH and D- is always LOW.

    Please suggest.

    Yadagiri