Thread: roboRIO usb
View Single Post
  #5   Spotlight this post!  
Unread 01-10-2015, 06:52 PM
taichichuan's Avatar
taichichuan taichichuan is offline
Software Mentor
AKA: Mike Anderson
FRC #0116 (Epsilon Delta)
Team Role: Mentor
  
Join Date: Feb 2010
Rookie Year: 2010
Location: Herndon, VA
Posts: 328
taichichuan has much to be proud oftaichichuan has much to be proud oftaichichuan has much to be proud oftaichichuan has much to be proud oftaichichuan has much to be proud oftaichichuan has much to be proud oftaichichuan has much to be proud oftaichichuan has much to be proud oftaichichuan has much to be proud oftaichichuan has much to be proud of
Send a message via AIM to taichichuan
Re: roboRIO usb
Quote:
Originally Posted by cgmv123 View Post
The roboRIO specifications document says the maximum draw per port is 900 mA.
Quite true. That is the number they list. However, that *is* in excess of the USB 2.0 spec. That number is in line with the USB 3.0 spec, but the port on the RoboRIO isn't listed as a USB 3.x device. So, yes, you *should* be able to get by with it. But, even though the RoboRIO can supply 900ma, it doesn't mean that your hub is built to handle that kind of current inbound from a single USB port. You'd still be better off with a powered hub, IMHO.

Good luck,

Mike
Reply With Quote