Hey everyone I'm still stuck as to why my beaglebone keeps changing the polarity to 1 on boot. I can go in and manually change it but it always resets after reboot. Should I maybe write a start up script to force the polarity to 0? I'd rather find the root cause rather than a hack but at this point anything that works is fine by me.
Thank you On Saturday, March 19, 2016 at 11:30:58 PM UTC-7, M House wrote: > > I'm doing a project right now that involves using a micro servo. One is > on port P8_13 and another on P9_14. > > Everytime I boot the beaglebone it gives me - error: Error enabling PWM > controls: Error: ENOENT, no such file or directory > '/sys/devices/ocp.3/bs_pwm_test_P9_14.15/polarity' > > When I check this file it shows a value of '1' inside of it. Where the > same file for P8_13 shows a zero. When I change the P9_14 polarity file to > 0 the servo works as intended. I'm really confused why the polarity is > being set to 1 every time I boot the beaglebone. This also happens if I > move the servo to P9_16. > > I did just upgrade from Debian 7.8 to 7.9 but I don't see how that would > change the GPIO behavior. > > -- 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. For more options, visit https://groups.google.com/d/optout.
