I'm using cape-universal. On Monday, December 25, 2017 at 3:05:59 PM UTC-8, maxmike wrote: > > Nah, that doesn't work either AFAIK: > > I have kernel: *4.4.68-ti-r110 #1 SMP* > I enable pwm as:* bash -c 'echo 1 > /sys/class/pwm/pwmchip4/export'* > Then I set ttyO4 tx as: */usr/bin/config-pin P9_13 uart* > > and when the app runs it gives me a file not found bleat. Indeed the pwm > files are not there. > > * /usr/bin/config-pin P9_11 uart* is allowed though, so I can read but > not write to the tty. > > > On Wednesday, November 8, 2017 at 8:44:42 AM UTC-8, RobertCNelson wrote: >> >> >> >> Easy: >> >> don't use /sys/pwm/pwmchipX, instead use the /sys/devices directory: >> >> /sys/devices/platform/ocp/48300000.epwmss/48300200.pwm/pwm/pwmchip*/ >> >> and ignore the "X"... >> >> https://github.com/beagleboard/pocketbeagle/wiki/Peripherals >> >> Regards, >> >> -- >> Robert Nelson >> https://rcn-ee.com/ >> >
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