This looks like it's being detected as a BBG Wireless and not a regular BBG. None of those pins are available on the BBGW.
Dan On Saturday, May 16, 2020 at 9:29:10 PM UTC-4, [email protected] wrote: > > Hi, > I'm trying to fix an error in my beaglebone green in which several PRU pin > directories are not available. I'm using image 4.19.50-ti-r20. I'm using, > Debian 10.2 which I have experienced as working well with the BBB and BBG. > The pins directories that don't show up are a sub-set of the 35 or so real > time PRU I/O pins. These pins are supposed to be available are > subdirectories of /sys/devices/platform/ocp/, as follows: > ocp:P8_11_pinmux > ocp:P8_12_pinmux* > ocp:P8_14_pinmux > ocp:P8_15_pinmux* > ocp:P8_16_pinmux > ocp:P8_17_pinmux > ocp:P8_18_pinmux > ocp:P9_28_pinmux* > ocp:P9_29_pinmux* > ocp:P9_30_pinmux* > ocp:P9_31_pinmux* > > The ones (6 of them) with the asterisk are the real time PRU Input / > Output pins that I really really need for my application. > > Notes: > This is on the Beaglebone Green, not the Beaglebone Black, I'll check if > the same problem shows up on BBB as well a little later... > This is image 4.19 > I have already gone into the /boot/uEnv.txt file and disabled the > following: HDMI, audio, emmc. But I still have this same problem. > > Is this a bug in the kernel / image ? > > In reviewing page 211 of Derek Molloy's Exploring Beaglebone book, I can't > see a pattern of all these pins belonging to a certain interface, so I > cannot even guess what interface might be causing them to become not > available. > > Please let me know if you have any ideas on this. > Thanks!! > > > > On Tuesday, January 24, 2017 at 6:42:30 AM UTC-6, Lindo wrote: >> >> Hi, >> >> I'm trying to use cdsteinkuehler's beaglebone-universal-io >> <https://github.com/cdsteinkuehler/beaglebone-universal-io> to config >> P9_28-31 as spi interface. After loading cape-universal overlay first, I >> got the "P9_28 pinmux file not found!" message when I configure P9_28 pin >> >> config-pin P9.28 spi >> P9_28 pinmux file not found! >> cape-universala overlay not found >> run "config-pin overlay cape-universala" to load the cape >> >> >> I think P9.28 might not actually exported, and then I found that the >> cape-univeral-00A0.dts file on the github website is different with >> RobertCNelson's version(I found this file under >> /opt/source/bb.org-overlays/src/arm/). see detail here: >> https://www.diffchecker.com/BivnZllE >> >> Is this a bug? or I was doing wrong somewhere? >> >> Thanks! >> Lindo >> >> -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/e0a42c84-84c4-42c1-b4d0-a1dfc6be2649%40googlegroups.com.
