USB not working

[9600]

@Sean S If you're running the latest LInux image, FPGA bitstream and kernel, and still find that USB is still not working for you, but everything else is, I would suggest you contact support@adapteva.com. As Shodruk says, while a few may still be experiencing issues, the vast majority are not and those who are with the latest distro could have faulty hardware.

Regards,

Andrew

[shahram]

Hi

I finally got my barrel cable and tested the board. Unfortunately it seems I bought a 100$ brick.

Here is what happened (may not apply to any purchase of parallella board)

-I powered up the board using a barrel cable and a very high quality power supply 5vdc 3A. The board boots perfectly and brings up the login screen.
-None of the USB ports work whether with a mouse/keyboard or a USB flash memory. I have a USB flash memory that when it is powered up and recognized by the host it blinks so fast for about half a second. But when I tried with USB connectors on the board nothing happened. I tried both long and short cables. It looks like there is no way left for me to connect to the board directly. I was wondering if there is still a chance to remotely connect to the board (remote desktop to use mouse and keyboard), if any please let me know.

Serial port is also useless for debugging, since there is no message after booting the kernel and you cannot see what is happening within the kernel. At least I could use it to see USB attach/detach messages if debugging messages was enabled.

If there was a problem with Epiphany chip or any other rare problems I would blame no one since I know how complicated and challenging a project can be when there is something new in it. But USB port is not something new and has been used in many boards like this for a long time(you all know them), and there shouldn't be any problem with that unless you want to reinvent the wheel AGAIN.

[gceline]

If you are connected to Ethernet, you should be able to SSH into the boards and get access to all the resources remotely

[perles]

Following Andrew's suggestion I've contacted Adapteva to request an exchange of my faulty board, but all I got was an auto-reply message saying that they are receiving a higher number of emails than usual. Does anyone here have a better experience to tell?

[over9000]

[Wuming]

I already have realized SSH to login, but USB don't work,type 'lsusb',then display 'unable to initialize libusb: -99'

[perles]

Does anyone have had any luck in returning your Parallella board due to USB issues? I've finally got my RMA request approved after a few days waiting, but not sure yet whether I'll ship it back.

[jabberlope]

[e-rod]

[Sean S]

Hi e-rod

Good investigative work! Lets hope that this turns out to be a software bug and not a hardware feature.

Just one observation - how do you distinguish between an USB OTG adapter vs a Micro USB cable?

Some people have noted that a long USB cable yields positive results - how long is your micro USB cable? Perhaps the difference between the USB OTG adapter (0 length) vs Micro USB cable (having some additional length) is what makes the difference.

Anyway, please keep us updated if you have any further findings.

Ta,
Sean