On Tue, Jan 30, 2018 at 11:40 AM, Paco Velasco <[email protected]> wrote: > Hi, I want to use the comand rtcwake to sleep and wake up the beaglebone > blue. I have seen that bb-blue has a RTC0 configurated for wakeup but this > is not a real rtc. > > I connect a real rtc (DS1307) on a I2C , the system rename it as RTC1 and I > have two rtc -> RTC0 and RTC1. > > When I call rtcwake on RTC0, works but not awake because not a real rtc and > time is set to 00:00:00 and not count. And when I call rtwake on RTC1 the > system say that RTC1 is not configurated for system wakeup. > > On beaglebone black same command and same RTC detects on RTC0 and works > fine. > > I can not disable RTC0 and I can not configure RTC1 for wakeup the system. > > Can somebody help me?
Look at these overlay examples: https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-RTC-01-00A0.dts The aliases field will allow you to specify which device gets to be: RTC0: aliases { rtc0 = "/ocp/i2c@4802a000/mcp7940x@68"; rtc1 = "/ocp/rtc@44e3e000"; }; 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAOCHtYi4BvGFszmPsUcX5fit-7RUtyuAYYmx_PMU%2BhygPEgGkA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
