USB Ethernet problem using micro-USB port of Ultra96-v2.

Question

Hi all,

I want to use Ultra96-v2 micro-USB port to communicate with PC. But my PC couldn't detect the board and no changes happen to the PC Device Manager when USB cable plugs in.

I am using the latest image version now, which is "ultra96v2_oob_2018_3_190917_8GB", and I tried other 3 PCs with Win10, none of them could detect the board as the Getting Started said "Ethernet Gadget".

I was wondering if there are any suggestions?

Thanks,

Yoyo

bhfletcher · Accepted Answer

I am having the same problem. I am investigating with our developer. I believe this works with the current PYNQ distribution if you want to give that one a try:

http://avnet.me/ultra96-pynq-image-v2.4_v2

Bryan

zedhed · Answer

Hi Yoyo,

I am using that PYNQ V2.4 image Bryan mentioned with my Ultra96-V2 and it is working as expected with my Windows 10 PC.

Are there any devices appearing in your Device Manager under the USB section when you attach your Ultra96 board to your PC?

Best Regards,

-Kevin

zedhed · Answer

Hi Yoyo,

I tried with my other Windows 10 PC and I ran into some issues getting that USB Gadget connected, specifically the Remote NDIS networking interface was reporting as Network cable unplugged when clearly it was already plugged.

I have been following this other post and wondered if these could somehow be related?

Re: Ultra96 and Click Mezzanine unhappy with Ubuntu?

Sure enough, if I follow this procedure, I can get the Remote NDIS interface to work as expected and access the Jupyter Notebooks on my Ultra96:

Disconnect laptop from my Thunderbolt docking station
Connect to Ultra96 J1 USB 3.0 ULPI Upstream port and wait for the Remote NDIS show Unidentified network as its status
Connect laptop to my Thunderbolt docking station

Once I complete this particular dance of actions, the Remote NDIS still shows as connected.

I then configure my IPv4/TCP properties to set my IP address to 192.168.3.100 with a subnet mask of 255.255.255.0 and I am off and running!

Then I am able to connect to the Jupyter Notebooks on my Ultra96 by opening the following URL in a browser:

http://192.168.3.1:9090/

Best Regards,

-Kevin

zedhed · Answer

Hi Yoyo,

Thanks for letting us know that you are able to move past the issue!

I also want to point out to you that the PYNQ V2.5 image has just been officially released. I made an announcement of this in this thread here:

PYNQ V2.5 for Ultra96 Released!

Best Regards,

-Kevin

USB Ethernet problem using micro-USB port of Ultra96-v2.

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