Yup, here's the mappings depending on which dts file is used: # universaln # 0 lrwxrwxrwx 1 root root 0 Feb 8 19:32 pwmchip0 -> ../../devices/platform/ocp/48300000.epwmss/48300200.ehrpwm/pwm/pwmchip0 # 0 lrwxrwxrwx 1 root root 0 Feb 8 19:32 pwmchip2 -> ../../devices/platform/ocp/48302000.epwmss/48302200.ehrpwm/pwm/pwmchip2 # 0 lrwxrwxrwx 1 root root 0 Feb 8 19:32 pwmchip4 -> ../../devices/platform/ocp/48300000.epwmss/48300100.ecap/pwm/pwmchip4 # 0 lrwxrwxrwx 1 root root 0 Feb 8 19:32 pwmchip5 -> ../../devices/platform/ocp/48304000.epwmss/48304100.ecap/pwm/pwmchip5 # 0 lrwxrwxrwx 1 root root 0 Feb 8 19:32 pwmchip6 -> ../../devices/platform/ocp/48304000.epwmss/48304200.ehrpwm/pwm/pwmchip6
# cape-emmc # 0 lrwxrwxrwx 1 root root 0 Feb 8 19:01 pwmchip0 -> ../../devices/platform/ocp/48300000.epwmss/48300100.ecap/pwm/pwmchip0 # 0 lrwxrwxrwx 1 root root 0 Feb 8 19:01 pwmchip1 -> ../../devices/platform/ocp/48304000.epwmss/48304100.ecap/pwm/pwmchip1 # 0 lrwxrwxrwx 1 root root 0 Feb 8 19:01 pwmchip2 -> ../../devices/platform/ocp/48300000.epwmss/48300200.ehrpwm/pwm/pwmchip2 # 0 lrwxrwxrwx 1 root root 0 Feb 8 19:01 pwmchip4 -> ../../devices/platform/ocp/48302000.epwmss/48302200.ehrpwm/pwm/pwmchip4 # 0 lrwxrwxrwx 1 root root 0 Feb 8 19:01 pwmchip6 -> ../../devices/platform/ocp/48304000.epwmss/48304200.ehrpwm/pwm/pwmchip6 Yes, the addresses are there, so I need to find a place that maps the addresses to the header pin numbers. --Mark On Monday, February 8, 2016 at 6:42:11 PM UTC-5, RobertCNelson wrote: > > On Mon, Feb 8, 2016 at 5:36 PM, Mark A. Yoder <mark.a...@gmail.com > <javascript:>> wrote: > > Well.... /sys/class/pwm/pwmchip2/pwm0 worked! Thanks... > > > > So given the pin name (P9_14 for example) how do I find the pwm path? > (I'm > > trying to port bonescript to Jessie.) > > For the pwm, I think it's load order (scary).... not sure if we can > for an alias in the dt.. > > 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
