So in case I buy a defective hub I have to cut such a USB cable leading back to BBB and remove +5 V from there? What if I connect such a hub to BBB right away? Can I damage the board?
W dniu środa, 9 grudnia 2015 16:47:09 UTC+1 użytkownik William Hermans napisał: > > You're going to need a 1A + supply if you use more than just ethernet. So > if you're using ethernet, and CANBUS for instance. > > One thing to note about those powered USB hubs. Sometimes they have power > on the USB line going back to the host. This power may have to be "cut" in > order for it to work correctly. Some people on these groups have had that > issue . . . > > On Wed, Dec 9, 2015 at 8:36 AM, Piotr C <[email protected] <javascript:>> > wrote: > >> Thank you for your answer. >> So as I understand a powerful eg. 2.5 A power supply is essential only >> when I want to connect a lot of higher current devices straight to BBB GPIO >> pins? >> >> Another question that popped to my mind: >> I have read here >> https://groups.google.com/forum/#!msg/beagleboard/ka8Nba41YMY/2_QrS9w-A7sJ >> that I may need to disconnect the power line coming from the hub. What if >> the only cable that goes to the board is the USB plug? How do I do it then? >> >> W dniu środa, 9 grudnia 2015 01:47:39 UTC+1 użytkownik RobertCNelson >> napisał: >>> >>> On Tue, Dec 8, 2015 at 6:27 PM, Piotr C <[email protected]> wrote: >>> > Dear Community, >>> > I have bought a BBB and now I am going to buy some accesories, eg. USB >>> hub. >>> > I am not sure whether I should get a passive or an active one if I >>> have a >>> > 5V, 2.5 A power supply. >>> > Will BBB power the hub sufficiently (with keyboard, mouse and a >>> TP-LINK wifi >>> > dongle)? Or maybe it should be the other way round -> smaller power >>> supply >>> > and an active hub? >>> >>> Get an active, you can only source a max 5v 500mA from the bbb's host >>> port.. the wifi will want that.. >>> >>> Regards, >>> >>> -- >>> Robert Nelson >>> https://rcn-ee.com/ >>> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
