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TUSB8044A: USB 2.0 Port is not getting enumerated

Abhishek singh
Expert 2000 points
Part Number: TUSB8044A

Hi Team 

We are  using  TUB8044A  in our  application where we are  connecting  USB 2.0 Port  through hub and  hub is  connected  to Nvidia.

At  Nvidia  console  we are  able to  get  VID correctly on connecting  pen drive  at  USB 2.0  port  we are  getting event  and  Nvidia always 

go  for  enumeration . Always it  gives  us  error  that  USB  enumeration failed.

1) What  is  possible reasons for enumeration is  getting failed  ?

2) What  steps  we  should  follow  for  debugging the issue ?

 

  • 0
    Expert 2000 points

    Hi  Team  

    For  your  reference  we  are  getting  below  logs  on connection  pendrive

    anycon@tegra-ubuntu:~$ anycon@tegra-ubuntu:~$ [ 1269.296581] usb 1-2.3: Device not responding to setup address.

    [ 1269.504473] usb 1-2.3: Device not responding to setup address

    . [ 1269.711916] usb 1-2.3: device not accepting address 8, error -71

    [ 1269.792526] usb 1-2.3: Device not responding to setup address

    . [ 1270.000488] usb 1-2.3: Device not responding to setup address.

    [ 1270.207896] usb 1-2.3: device not accepting address 9, error -71

    [ 1270.892040] usb 1-2.3: device descriptor read/64, error -32

    [ 1271.080031] usb 1-2.3: device descriptor read/64, error -32

    [ 1271.348038] usb 1-2.3: device descriptor read/64, error -32

    [ 1271.536066] usb 1-2.3: device descriptor read/64, error -32

    [ 1271.644036] usb 1-2-port3: unable to enumerate USB device

  • 0 in reply to Abhishek singh
    Expert 2000 points

    Hi  Team 

    Please  update .

  • 0 in reply to Abhishek singh
    TI__Guru 64326 points

    Hi,

    You should start by ensuring that TUSB8044A itself has enumerated correctly to the USB Host. For some general debug steps/tips please see the FAQ below. Typically enumeration issues result from issues with the power-up sequence so this would be a good place to start.