Usb lane mapping for config 4 on TX2 r28.2

No, I don’t see any mistake in your dts. Could you describe what devices are you using?

One of the usb devices is Samsung 1TB usb3.0 SSD T3, and another one is Flir Camera(Point Grey) that we used to test usb ports. Which information do you need about these devices?

Hi,

According to the comments, the problem here is that the SS devices can be enumerated as SS but not stable on your customized carrier board.

Moreover, we could observe many protocol errors happen on your carrier board no matter SS/HS devices.

Generally, if the problem is caused by dts, the problem should be consistent. (e.g. device cannot be enumerated to SS)

Therefore, the problem here may not caused by dts but hardware signal interference.

Suggest to disable all wireless(wifi) and any other suspected component to see whether the problem solved or not. If not, you may need to do a HW signal test.

Please refer to TX2 serial tuning guide on our download center for tuning.

Hi WayneWWW,

Our hardware guy says that we remove pcie, m.2 key, hdmi, display, camera, jtag header, debug header, and 12V structure from your concept of schematic in our custom board. Also, sd card and sata are not placed in our custom board. The protocols error can happen because of these removals and non-placements?

Before the signal tests, if we share the schematic with you, could you observe it and may be something wrong about hardware and you will tell us. We think that this speeds up all process.

Hi,

Please follow up the OEM Design guide. Currently we don’t help review the schematic on forum.

If you need such resource, please contact nvidia sales to highlight this issue.

Hi fatih.eyuboglu
Hello! My hardware and software environment and operating procedures are exactly the same as yours. The problem is the same! Has your problem been solved?

Hi hechengyongjiang,
No, we cant solve the problem, yet.