Nevermind, I was just being an idiot, I think I've got it now thanks to those links, thanks for your help!!
On Sun, Aug 30, 2015 at 12:35 PM, M@ <[email protected]> wrote: > Thanks for those links! > > I have two problems 1) /sys/class/pwm is empty, so I can't echo anything > into a /export. Could this be due to running Arch instead of Angstrom? > > 2) dtc is complaning that "#include" doesn't parse, saying "Error: > BB-BONE-BACONE.dts:11.1-9 syntax error > FATAL ERROR: Unable to parse input tree" Any ideas? > > --M@ > > On Sun, Aug 23, 2015 at 8:52 PM, Robert Nelson <[email protected]> > wrote: > >> On Sun, Aug 23, 2015 at 4:06 PM, M@ Dunlap <[email protected]> >> wrote: >> > Hello all, I'm trying with increasing desperation to get my BBB (that is >> > running 4.1.4-1-ARCH) to use a PWM. It used to work, but then I updated >> > from 3.8 to 4.1 and now it's back to SNAFU. I'm trying to get device >> trees >> > to work, but I really, really don't get device tree overlays, I've read >> all >> > the guides/docs and am still clueless. >> > >> > My current best guess is to first load >> > >> https://github.com/ProjectHexapod/bbbStuff/blob/master/overlays/am33xx_pwm-00A0.dts >> > to activate pwm, and then load >> > >> https://github.com/ProjectHexapod/bbbStuff/blob/master/overlays/thigh_bone-00A0.dts >> > to configure all the pins. Unfortunately when I do that and then try to >> > echo something into pwmFolder/duty it tells me that the permission is >> > denied. I also don't understand why those need to be separate device >> tree >> > overlays. >> > >> > In attempting to isolate the problem I also came up with the following, >> but >> > it gives the same permission denied errors. I'm out of ideas, please >> send >> > help! Also, even if you don't know how to solve the problem, I'd also >> be >> > interested to hear if there are style or high-level problems with my >> > approach.... >> >> pwm works fine, take a look at the bacon cape example we have for 4.1: >> >> cape: >> >> https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-BONE-BACONE-00A0.dts >> >> and the script i used to test the pwm's >> >> >> https://github.com/beagleboard/bb.org-overlays/blob/master/examples/BB-BONE-BACONE/example.sh >> >> Regards, >> >> -- >> Robert Nelson >> https://rcn-ee.com/ >> >> -- >> 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/hsyqGGqAQsI/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> > > -- 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/d/optout.
