Graham -- That totally makes sense. Thanks for the info! I plan to power the board from an external 5V source so that I can also use one or both USB ports in host mode. It appears as though SYS VIN (P1 pin 01) won't do the trick. I guess I will have to power the board through VIN USB1 (P1 pin 07) while also hooking up a USB breakout board there, somehow. Does that seem like it might work?
-- Will On Friday, November 10, 2017 at 9:46:00 AM UTC-7, Graham wrote: > > You will probably have to come up with a separate 5V power source for the > USB Host port. > > The Pocket Beagle has three power inputs that will power the CPU: Vin, > USB-VIN and the battery input. > None of these back power the other inputs. > Any of the three inputs may be switched to the VOUT line, but when on LiPo > battery, this will only be 3.2 to 4.2 Volts, which is not within USB spec > for Vbus. > > So, if you are running off of 4V LIPO battery, there is no on-board source > of 5 Volts for the USB ports. > You may have to provide your own boost converter or other 5V source. > > --- Graham > > == > > On Friday, November 10, 2017 at 9:30:35 AM UTC-6, [email protected] > wrote: >> >> I, too, am curious about how to do this, while using the on-board USB >> jack in host mode (maybe with an OTG adapter and a wi-fi dongle?). Has >> anybody else attempted this yet? >> >> -- Will Bain >> >> On Monday, November 6, 2017 at 6:30:09 PM UTC-7, Shannon Mackey wrote: >>> >>> It isn't obvious to me how to power the PocketBeagle with a LiPo >>> battery. >>> >>> TP 5/6/7/8 don't seem to be pulled out the way they are on the regular >>> BBB. and the Bat+Bat(temp?/-?) isn't giving me any satisfaction. >>> >>> I was hoping that I was overlooking something that someone here could >>> point me to. Otherwise, I'll try further to compare schematics to find >>> what I'm looking for. >>> Thanks for any assistance! >>> >>> >>> -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/d708dd26-eec5-4585-bd08-eb298215cf74%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
