I also have similar questions. I have a robot with 24 servos and I am wondering if I can control all of them straight from the BBB board. Can all of these pins be used for PWM if mapped as such in the device tree?
On Wednesday, October 2, 2013 7:03:53 AM UTC-7, tbh wrote: > > I've just gotten pwm working through sysfs drivers on my beaglebone black. > Now I'm looking more in depth into the different things I can do with it, > and I can't seem to find any information on a few signals. I'm using derek > molloy's > charts<https://github.com/derekmolloy/boneDeviceTree/tree/master/docs>for the > headers (which he compiled from the BBB SRM) > > I see the following signals that I believe relate to PWM: > ehrpwm2B (P8_13) > ehrpwm2_tripzone_in (P8_14) > ehrpwm0_synco (P8_17) > ehrpwm2A (P8_19) > ehrpwm1B (P8_34) > ehrpwm1A (P8_36) > ehrpwm1_tripzone_in (P8_37) > ehrpwm0_synco (P8_38) > ehrpwm2_tripzone_in (P8_43) > ehrpwm0_synco (P8_44) > ehrpwm2A (P8_45) > ehrpwm2B (P8_46) > > ehrpwm1A_mux1 (P9_14) > ehrpwm1_tripzone_input (P9_15) > ehrpwm1B_mux1 (P9_16) > ehrpwm0_synci (P9_17) > ehrpwm0_tripzone (P9_18) > ehrpwm0B (P9_21) > ehrpwm0A (P9_22) > ehrpwm0_synco (P9_23) > eCAP2_in_PWM2_out and ehrpwm0_synci (P9_28) > ehrpwm0B (P9_29) > ehrpwm0_tripzone (P9_30) > ehrpwm0A (P9_31) > pr1_ecap0_cap_capin_apwm_o and eCAP0_in_PWM0_out (P9_42) > > > I understand what all the signals mean except for a few. They're probably > just due to the fact that notation changed, but I wanted to make sure > before I structured projects around the wrong information. > > Is there a difference between ehrpwm1A_mux1 and ehrpwm1A? > Is there a difference between ehrpwm1_tripzone_in and > ehrpwm1_tripzone_input? > What is pr1_ecap0_cap_capin_apwm_o? > > Thanks. > -- 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.
