USB Issue Troubleshooting

Hardware related problems and workarounds

Re: USB Issue Troubleshooting

Postby ajtravis » Sat Aug 30, 2014 8:38 pm

leon_heller wrote:RS replaces faulty items without any problems.

Hi, leon_heller.

Yes, they replace items they supplied: I'm asking if people like me in the UK who bought Parallella boards from Adapteva and had them shipped from the US can send them to RS in the UK instead of shipping them to the USA. I've alrready been stung by £87 of unexpected VAT when DHL delivered my Parallella kit from the USA. I don't see why I should fork out even more money to return faulty goods when RS supply Parallella in the UK.

Bye,

Tony.
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Re: USB Issue Troubleshooting

Postby leon_heller » Sat Aug 30, 2014 9:37 pm

No, that won't work.
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USB port problem

Postby manklee » Wed Sep 03, 2014 9:32 pm

I have the USB port connected to a powered hub, which in turn is connected to a mouse and keyboard. On power up, both mouse/keyboard work fine. Both keyboard/mouse would not work on reboot most of the time. Any solutions?
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Re: USB Issue Troubleshooting

Postby ESI » Sat Sep 06, 2014 9:04 am

Hi,
I posted some possible root cause and solution here:
http://forums.parallella.org/viewtopic.php?f=50&t=1510&start=50#p10621
hope it helps,
BR
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Re: USB Issue Troubleshooting

Postby tingo » Wed Oct 08, 2014 8:48 pm

Ok, it seems like I have a slightly different usb problem than the one described in the first post of this thread, because (according to dmesg) the USB controller gets initialized, but still usb doesn't work.
Failure mode: always
headless / HDMI: HDMI
FPGA/Linux/Ubuntu version: official, from http://www.parallella.org/create-sdcard/ - Ubunto 14.04, HDMI kernel, Zynq 7020 with HDMI
fan: yes - a cheap usb-powered one
SKU: A101040
U13: not populated
power supply: 5 V 2.5A, connected to the barrel connector on the Parallella board

I have a micro-usb to usb cable connected to the Parallella board, this goes to a 4-port powered usb hub (I have tried both an usb 3.0 and a usb 2.0 - doesn't make a difference). Into this hub I plug the usb fan, a keyboard (I've tried two different ones) and a mouse (I've tried two different ones).
Problem: none of the usb devices work. The mouse (optical mice) lights up on the underside, but that's it.
dmesg output shows this:
Code: Select all
linaro-nano:~> dmesg | grep ehci
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver
xusbps-ehci xusbps-ehci.0: Xilinx PS USB EHCI Host Controller
xusbps-ehci xusbps-ehci.0: new USB bus registered, assigned bus number 1
xusbps-ehci xusbps-ehci.0: irq 53, io mem 0x00000000
xusbps-ehci xusbps-ehci.0: USB 2.0 started, EHCI 1.00

but lsusb only shows this:
Code: Select all
linaro-nano:~> lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

It doesn't matter if I power up the board or use the reset button, this is always the result I get.
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Re: USB Issue Troubleshooting

Postby tingo » Wed Oct 08, 2014 9:36 pm

A quick followup: using a micro-usb to (female) usb adapter and a unpowered 4-port hub has resolved this. I now get this:
Code: Select all
linaro-nano:~> lsusb
Bus 001 Device 008: ID 046d:c30e Logitech, Inc. UltraX Keyboard (Y-BL49)
Bus 001 Device 009: ID 045e:077a Microsoft Corp.
Bus 001 Device 003: ID 1a40:0101 Terminus Technology Inc. 4-Port HUB
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

I tried using the usb 2.0 hub unpowered too, but that didn't work.
Anyway, it works now, now I'm off to look for the xtemp utility.
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Re: USB Issue Troubleshooting

Postby ArnaudBuy » Sun Oct 12, 2014 4:30 pm

Hi,

* Failure mode (sometimes or always?) => about 90 % of time ?
* Headless/hdmi configuration => hdmi kernel/gpioses but without using a hdmi cable (ssh)
* FPGA/Linux/Ubuntu version being used => parallella_e16_hdmi_gpiose_7010.bit.bin, kernel-hdmi-default, ubuntu-14.04-140611.img
* Fan used? => Yes
* SKU# => P1601-DK02
* Power supply used => Mean Well 5V/3A

DSC01031.jpg
DSC01031.jpg (314.97 KiB) Viewed 15359 times


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Re: USB Issue Troubleshooting

Postby ArnaudBuy » Mon Oct 13, 2014 4:50 pm

Hi,

RS sent me a new board that I received today : it doesn't work better ...
SN of the first board : 0011025
SN of the new board : 0013384

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Re: USB Issue Troubleshooting

Postby ajtravis » Tue Oct 14, 2014 8:45 am

ArnaudBuy wrote:Hi,
RS sent me a new board that I received today : it doesn't work better ...
SN of the first board : 0011025
SN of the new board : 0013384

Hi, Arnaud.

Are you in the UK?

The board I sent back to Adapteva failed in 75% of my tests, but it works reliably for them in the USA. The RMA replacement board that Adapteva sent works reliably under the SAME testing regime, unless I use a powered USB hub. However, it is a different SKU.

Bye,

Tony.
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Re: USB Issue Troubleshooting

Postby Verkerkbr » Tue Oct 14, 2014 7:55 pm

Had also problems with my USB connections to a keyboard and wireless mouse.

At first I used an activ hub from Konig brand. But no way to connect to these USB gears. Keyboard did not light up. Nothing showed up in LSUSB.

After replacing the Konig hub for a Belkin 4-port Powered Mobile Hub (no further typ indication on the casing) the problems with the USB connections are gone.

Now with this small Belkin hub everything runs fine. (data transfer of up to 480 Mbps on specification on the carton box.)
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