USB hub power spec

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USB hub power spec

Unread postby gsp » Wed Jan 17, 2018 2:45 am

I need more pwr for a USB device, i know that USB Y-Cables exist that may help. Will i get double the USB current connecting to 2 seperate ports together to feed a mini USB plug/device? Also- can the
Odroid USB ports be configured to "gang" the pwr to one port to double the output power without the need for the Y-cable?

the other option is a USB hub self powered, last solution on the list for me...
Thanks.
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Re: USB hub power spec

Unread postby mad_ady » Wed Jan 17, 2018 4:11 am

I think that y cables should work because the ports are independent and can draw 500mA each. Make sure you don't exceed your power supply max power, otherwise you'll experience hangs. I don't think you can configure max current on the port, but also, I don't think the ports are limited to 500mA either... Maybe @odroid can answer better...
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Re: USB hub power spec

Unread postby odroid » Wed Jan 17, 2018 9:59 am

One stacked USB connector shares a load switch.
So you need to connect the Y-cable horizontally not vertically to increase the power.

What is the estimated power consumption of your USB devices?
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Re: USB hub power spec

Unread postby gsp » Thu Jan 18, 2018 10:56 pm

not sure of the pwr consumption of the device, but its very slow once connected. On a windows laptop its fine though.
Just assuming its a pwr issue. thanks.
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