If you don't care about the initial state and when Linux is booting, why don't you just invert the duty cycle in software? That would effectively invert the pin polarity. --- Graham
== On Tuesday, September 20, 2016 at 10:07:21 AM UTC-5, Gerald wrote: > > Do a PDF search for the pin number. > > Gerald > > > On Tue, Sep 20, 2016 at 10:02 AM, Nguyễn Hồng Quân <ng.hon...@gmail.com > <javascript:>> wrote: > >> >> >> On Tue, Sep 20, 2016 at 9:50 PM, Gerald Coley <ger...@beagleboard.org >> <javascript:>> wrote: >> >>> >>> Read the datasheet. It will tell you the state of the pin after reset, >>> before the SW has run.. >>> >> >> I don't really care the status in short moment. The reason behind my >> question is: >> >> " >> I want the pin to be 0V when PWM is working, because I want to reduce >> the power drain from my BeagleBone board to feed the PWM pin. It is similar >> to why we have GPIO at 0V to turn on the LED." >> >> It will be good if you can point me where to read in the datasheet. I >> feel difficulty reading the whole document. >> >> -- >> Quân >> *********************************************** >> * Nguyễn Hồng Quân * >> * ☎ 093 9030 338 * >> * Facebook: ng.hong.quan * >> * 🌏 quan.hoabinh.vn * >> *********************************************** >> >> -- >> 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 beagleboard...@googlegroups.com <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/beagleboard/CAL-RyxirdVvHhqbzPUa7xYSx03r6MG2NrU0ouMsxv%2BJVQmX1rw%40mail.gmail.com >> >> <https://groups.google.com/d/msgid/beagleboard/CAL-RyxirdVvHhqbzPUa7xYSx03r6MG2NrU0ouMsxv%2BJVQmX1rw%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > Gerald > > ger...@beagleboard.org <javascript:> > http://beagleboard.org/ > gco...@emprodesign.com <javascript:> > > -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/bcd9b446-b414-4e74-aa06-9aa7aa53e246%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
