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USB3.0 FX3 device somtimes enumerates as USB2.0 | Cypress Semiconductor

USB3.0 FX3 device somtimes enumerates as USB2.0

Summary: 1 Reply, Latest post by Madhu Sudhan on 24 Sep 2016 04:47 AM PDT
Verified Answers: 0
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Alexandre Savard's picture
User
1 post

Sometimes our USB3.0 FX3 device is enumerated as a USB 2.0 instead of USB 3.0. Unpluging and repluging the device normally gets de device to be enumerated in USB 3.0 again as expected. 

We are not experiencing any signal integrity issues once the device is enumerated as USB 3.0 when we perform high bandwidth data transfer.

We are using Intel's USB 3.0 eXtensible controler on Windows 10. We also deactivated USB power management in windows without any effect on the current problematic behavior.

 

Is anyone experiencing a similar issue. 

 

Regards

 

Alexandre

 

mady's picture
Cypress Employee
1022 posts

Hi,
 

Manytimes this issue might be specific to the USB Port of the PC. Please confirm the same by trying on any other Port / any other PC.

Regards,

- Madhu Sudhan

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