Thanks Gerald - that was quick. Excuse my beginner question. How exactly would I do that or where could I learn how to do that? I never sent any I2C command to anybody and have no clue how to ;)
Best, Niko On 18 Nov 2013, at 21:34, Gerald Coley <[email protected]> wrote: > HDMI cannot be powered down without taking down the 1.8V rail. You can > certainly take down all the rails via the PMIC, but that may be too low in > power as that would shut everything down. > > If HDMI is not connected, no cable, the framer does go into a lower power > mode. You could also take the LCD pins and turn them off, either high or low, > to save some power as well. > > To turn ff rails, send I2C commands to the PMIC. refer to the datasheet..But, > be careful not to have devices partially powered, devcies off and signal pins > still active. > > Gerald > > > > On Mon, Nov 18, 2013 at 2:01 PM, <[email protected]> wrote: > Hi everybody > > Interesting discussion. I also would like to keep power consumption to a > minimum for my headless BBB. > > @Gerald: How exactly would you power down the rails and HDMI? > > Best regards, > Niko. > > > > > On Wednesday, May 15, 2013 2:27:52 PM UTC+2, Gerald wrote: > You can put the boar din a sleep mode depending on how much asleep you want > too go. You can turn of the 3.3V rail and the 1.8V rail to save power by > writing I2C commands to the TPS65217C.. I don't know what peripherals you > still want to be active so this may not work.. > > You can power down the HDMI by sending I2C commands to it, but it may or may > not save you the amount of power you are looking for. > > Gerald > > -- > 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/groups/opt_out. > > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to a topic in the Google > Groups "BeagleBoard" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/beagleboard/mW_tyXJ1v4Y/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. -- 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/groups/opt_out.
