N2 - USB ports have no power

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haggishm
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N2 - USB ports have no power

Unread post by haggishm » Wed May 01, 2019 4:24 pm

Hi, Was all running fine with Ubuntu 18.04 (your supplied image). Been unplugged for a couple of days, turn it back on, boots up to login screen but no power to USB ports, so no keyboard etc to be able to log in. Any ideas to try very welcome. Also just noticed the red power led never comes on, but the blue stays solid for a few seconds then flashes from then on.

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Re: N2 - USB ports have no power

Unread post by haggishm » Thu May 02, 2019 6:07 am

I've done some further testing, no 5v rail by the looks, 3.3v is fine. CPU is running and os boots up. Any ideas how to fix the 5v problem? Thanks

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Re: N2 - USB ports have no power

Unread post by tobetter » Thu May 02, 2019 6:52 am

What DC adapter did you use?
Would you be able to check the voltage of 5V and 3.3V on GPIO 40 pin?
https://wiki.odroid.com/odroid-n2/hardw ... connectors

Can you do the command lsusb -t once you have the shell of Ubuntu connecting through ethernet or Wifi?

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Re: N2 - USB ports have no power

Unread post by haggishm » Thu May 02, 2019 8:33 am

Hi, no 5v pins are active on 40pin header. 3.3v is fine. Red led on board never comes on.

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Re: N2 - USB ports have no power

Unread post by haggishm » Thu May 02, 2019 8:34 am

Cannot connect through ethernet, don't know why, doesn't show up on my router.
Wifi needs usb which is not working

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Re: N2 - USB ports have no power

Unread post by tobetter » Thu May 02, 2019 4:41 pm

haggishm wrote:
Thu May 02, 2019 8:34 am
Cannot connect through ethernet, don't know why, doesn't show up on my router.
Wifi needs usb which is not working
Can you try to change your switch to 100Mbps instead of 1Gbps?
If yes, could you connect your N2 and see what it says about lsusb -t?

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Re: N2 - USB ports have no power

Unread post by haggishm » Thu May 02, 2019 5:09 pm

Hi, router has automatic port speed, have manual set to 100Mbps, still nothing. Also tried a CP2102 board to connect for serial debugging, but nothing at any baud setting.

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Re: N2 - USB ports have no power

Unread post by tobetter » Thu May 02, 2019 6:23 pm

haggishm wrote:
Thu May 02, 2019 5:09 pm
Hi, router has automatic port speed, have manual set to 100Mbps, still nothing. Also tried a CP2102 board to connect for serial debugging, but nothing at any baud setting.
What adapter did you use for your ODROID-N2?
I suspect your N2 has defected... :(

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Re: N2 - USB ports have no power

Unread post by haggishm » Fri May 03, 2019 9:26 am

Hi, I was using a bench power supply set to 12v 2amp, as I was still testing with ROS. Thanks

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Re: N2 - USB ports have no power

Unread post by tobetter » Fri May 03, 2019 9:39 am

haggishm wrote:Hi, I was using a bench power supply set to 12v 2amp, as I was still testing with ROS. Thanks
If you have purchased your ODROID-N2 from Hardkernel directly, please drop an email to odroid at hardkernel dot com with link of this thread, otherwise please contact with your local distributor.

Thank you.

"Tapatalk wishes you to have fun with ODROID"

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