Hi flyingfred0! Not really; I haven't investigated more about this problem...I'm using rtcwake at the moment but I would be glad if you find a powerful standby mode way.
Il giorno mercoledì 3 maggio 2017 17:27:08 UTC+2, [email protected] ha scritto: > > The AM335x platform already includes a Cortex M3 for exactly this purpose > -- a low power MCU that can be used to wake the system on certain > interrupts ( > http://processors.wiki.ti.com/index.php/AM335x_Power_Management_Standby_User%27s_Guide#Linux_Implementation > ) > > I don't yet have the wakeup working on a 4.4.x kernel, but will post an > update when I figure it out. > > Davide -- have you have any luck since posting this question? > > > On Thursday, February 16, 2017 at 3:11:56 PM UTC-5, William Hermans wrote: >> >> >> >> On Thu, Feb 16, 2017 at 1:04 PM, Davide Aguiari <[email protected]> >> wrote: >> >>> We're looking for something less external mcu-based in order to exploit >>> all the AM335x capabilities. I would prefer consume a bit more without >>> making the project too complex with programming an external mcu :) >>> >>> I'm wondering if the BB offers a inner way to sleep/awake or at least >>> the possibility to use the GPIO and the external rtc with the interrupt. >>> I'm trying rtcwake with 'standby' mode and it's working quite good, but >>> the best (imho) wat would be the 'mem' mode if it's possible to wake it up >>> with the rtc (rtc0 or rtc1). >>> >>> I'm using an external RTC because I will have possible situations >>> without the access to Internet, like you guessed. >>> >> >> If you leave out the need for an external MCU, the system will not be >> robust, nor efficient. >> >> I'm not saying what you want is not possible, I'm honestly not sure if >> this is possible on this platform or not. More or less like it's possible >> and most if not all X86 style systems. What I am saying is that if you rely >> solely on the beaglebone, you're asking for trouble. For several reasons, >> but for starters, there is no functional watchdog hardware module on the >> beaglebone. Passed that, if the processor on the beaglebone has to be >> active, but even in low power mode. The PMIC has to be active as well. >> Comparatively, this will use a lot of power. Compared to something that was >> specifically designed to use micro, or nano amps. >> >> Those are just two reasons. There are many more reasons if you think >> about it hard. >> > -- 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/6877479e-df1f-478e-a538-b72e3c3a0072%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
