TUSB8043A: USB 3.0 EYE Diagram Testing

Lumina Gui

Part Number: TUSB8043A

Hi Sir,

Our Qualcomm platform project using TUSB8043A USB 3.0 HUB. Now we need to do the USB Type-A eye diagram testing. How can we make TUSB8043AI send out test patterns? Can you provide some good suggestions or experience?

Thanks,

Kind Regards

over 4 years ago

0 Malik Barton57 over 4 years ago

TI__Guru 64326 points

Hi,

USB Hubs only send out test patterns as directed by the USB Host. You will need to use the XHSETT tool provided by the USB IF to do this.

0 Color Lin over 4 years ago

Prodigy 20 points

Hi Sir

We checked the XHSETT related documents on the USB IF and found that it is a tool on windows. The system of our device is Linux and cannot be used. So the next, how should we test the eye pattern of the usb hub inside the device?

More information, TUSB8043A is mounted on our device's PCBA and connect to CPU directly.

0 Malik Barton57 over 4 years ago in reply to Color Lin

TI__Guru 64326 points

There are instructions available online on how to generate this command in Linux, but TI does not provide a Linux driver to support this.

The link below may help in enabling test pattern.

https://e2e.ti.com/support/interface-group/interface/f/interface-forum/596356/linux-am5728-usb2-test-patterns-through-hub/2195870#2195870

0 Color Lin over 4 years ago in reply to Malik Barton57

Prodigy 20 points

Hi Sir

Thanks for sharing the reference. I tried to visit the web of gitorious.org but it is invalidated, is there another way to get the "CONTROL.C" file?

Moreover, it seems more discussion about USB2, is the method still workable on USB3?

0 Malik Barton57 over 4 years ago in reply to Color Lin

TI__Guru 64326 points

I do not have another way to get the "CONTROL.C" file. Similar process should work for USB 3.

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TUSB8043A: USB 3.0 EYE Diagram Testing