anyone knows how to completely disconnect the power management via operating system without adding any circuit in the BBB?
Em quarta-feira, 15 de julho de 2015 12:05:44 UTC-3, Ron B. escreveu: > > Hi all, > > My original reasoning behind the Power Cape was to get a 5V supply with a > low quiescent "off" current and that could restart the BeagleBone on a > scheduled timeout or external event. Using a 5V supply instead of the > PMIC's battery interface also allows for using USB devices. The battery > charger was added after the first prototype. > > As David pointed out, the INA219 allows system software to monitor the > battery voltage & current and take appropriate action. DC "power good" > from the charger is also available and can trigger power-up allowing the > BeagleBone to restart when power is restored. The micro-controller does a > few other things like RTC, WDTs, power-up retries, and holding reset during > power-up intended to make the system more reliable for remote operation. > The firmware is on Github if you need to customize behavior. > > Hope this helps, > -Ron > > On Wednesday, July 15, 2015 at 8:54:17 AM UTC-5, Marlon Cesar Pilonetto > wrote: >> >> I am looking into the possibility of using the powercape, but otherwise >> one has no choice to help with the solution of the problem? >> >> Em quarta-feira, 15 de julho de 2015 08:55:16 UTC-3, David Goodenough >> escreveu: >>> >>> On Tuesday 14 July 2015 14:40:36 William Hermans wrote: >>> > Just out of curiosity. What is the attraction of a "battery cape" ? I >>> mean >>> > I can see the need for consistent power, and perhaps keeping this as >>> small >>> > as possible, but is that it ? >>> The main advantage if an integrated solution is that you get to monitor >>> the >>> supply and the battery from the manager chip. This way you can shut >>> yourself >>> down cleanly when the battery is about to give up, and go into power >>> save mode >>> when not running on the mains. >>> >>> How much of that this cape does I do not know. >>> >>> David >>> > >>> > I have always imagine using an "inline" power source such as a >>> regulated >>> > battery output to the barreljack, with a small inline mains to battery >>> > charging circuit. But . . . yeah that's me. >>> > >>> > Anyway my comment is not meant to discourage, or discount other >>> avenues of >>> > thought. I'm simply curious. >>> > >>> > On Tue, Jul 14, 2015 at 10:23 AM, Colin Bester <[email protected]> >>> > >>> > wrote: >>> > > Yup, that's what I do with the powercape from Andice Labs as >>> mentioned >>> > > above. Except for very low drain battery is essentially >>> disconnected. >>> > > >>> > > I initially went the route of trying to use the onboard battery >>> connector >>> > > but it's not really a decent solution if you want solid system and >>> battery >>> > > management. >>> > > >>> > > On Tuesday, July 14, 2015 at 12:12:03 PM UTC-5, Marlon Cesar >>> Pilonetto >>> > > >>> > > wrote: >>> > >> Lords am new to the BBB and what I need is to turn off the battery >>> > >> management so that when my system is not connected to battery is >>> not >>> > >> consumed in its entirety. >>> > >> >>> > >>> -- >>> > > >>> > > 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. >>> >>> -- 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.
