TUSB8041: TUSB8041 USB3.0 RX compliance test

Chia Hung Lin

Part Number: TUSB8041

The TUSB8041 upstream is an ARM SoC with Linux kernel 4.4.38 and downstream are three USB Super Speed ports. We can implement USB3.0 TX compliance, the result is pass. But the USB 3.0 RX compliance can't be executed. Is there any different setting for RX testing? From my understanding, HUB should be changed to "Loopback mode" for RX testing?

over 7 years ago

0 Jorge Llamas (SWAT) over 7 years ago

TI__Expert 7395 points

Hello,

Thank you for your interest in our products.

I have assigned a support engineer and you should be getting a response soon.

Regards,
Jorge

0 Jorge Llamas (SWAT) over 7 years ago in reply to Jorge Llamas (SWAT)

TI__Expert 7395 points

Closing this post as this is duplicated at e2e.ti.com/.../668527

0 Chia Hung Lin over 7 years ago in reply to Jorge Llamas (SWAT)

Prodigy 160 points

Hi Jorge,

Another post that you mentioned is USB2.0 compliance test question but I'm asking USB 3.0 "RX" compliance test in this port. From my understanding, HUB should be changed to "Loopback mode" for RX test when the DUT connects to Scope? HUB will output TX compliance pattern for TX test so HOST needs to communicate to HUB. Am I right? So I my question is why can't TUSB8041 enter "Loopback mode" when we did SI test?

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TUSB8041: TUSB8041 USB3.0 RX compliance test