How to check USB CRC error?

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Hi Expert,

In our TX2 application, we found the USB contoller was crashed sometimes. We suspected it’s related to signal quality. I think there should be CRC error statistics if physical link is bad like other serial link. Which registers can we dump to check the USB CRC error counter?

Thanks
Peter

3

Hi,
Have checked with our teams and confirmed there is no register defined by USB/XHCI specs to reflect CRC error. We use USB bus analyzer to check CRC error from bus.

4

Thanks for reply. But it’s not reasonable, USB3 is very high speed and usually connected with a cable. USB bus analyzer can’t reflect real connection. CRC is directly showing the result at receiver side.

Peter

6

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