Thank you again. While I was disabling HDMI (both audio and video, just for good measure) in */boot/uEnv.txt*, I noticed that I had incorrectly disabled the universal cape earlier. What I did was to change the value from one to zero as follows...
###Cape Universal Enable enable_uboot_cape_universal=0 ...but I should have commented the line out like this... ###Cape Universal Enable #enable_uboot_cape_universal=1 So now the *pwm_cap* example is working on both P9_28 and P9_42. Don On Sunday, March 3, 2019 at 5:27:58 PM UTC-5, RobertCNelson wrote: > > On Sun, Mar 3, 2019 at 4:10 PM <[email protected] <javascript:>> wrote: > > > > Thank you for looking at this. Output of the command you requested... > > debian@beaglebone:/usr/share/doc/libpruio-dev/examples$ sudo > /opt/scripts/tools/version.sh > > git:/opt/scripts/:[1aa73453b2c980b75e31e83dab7dd8b6696f10c7] > > eeprom:[A335BNLTEIA00917BBBK4F44] > > model:[TI_AM335x_BeagleBone_Black] > > dogtag:[BeagleBoard.org Debian Image 2018-10-07] > > bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot > 2018.09-00002-g0b54a51eee]:[location: dd MBR] > > kernel:[4.14.71-ti-r80] > > nodejs:[v6.17.0] > > uboot_overlay_options:[enable_uboot_overlays=1] > > > uboot_overlay_options:[uboot_overlay_pru=/lib/firmware/AM335X-PRU-UIO-00A0.dtbo] > > > > uboot_overlay_options:[enable_uboot_cape_universal=0] > > pkg check: to individually upgrade run: [sudo apt install --only-upgrade > <pkg>] > > pkg:[bb-cape-overlays]:[4.4.20190227.0-0rcnee0~stretch+20190227] > > pkg:[bb-wl18xx-firmware]:[1.20190227.1-0rcnee0~stretch+20190227] > > pkg:[kmod]:[23-2rcnee1~stretch+20171005] > > pkg:[librobotcontrol]:[1.0.4-git20190107.0-0rcnee0~stretch+20190108] > > pkg:[firmware-ti-connectivity]:[20180825+dfsg-1rcnee1~stretch+20181217] > > groups:[debian : debian adm kmem dialout cdrom floppy audio dip video > plugdev users systemd-journal i2c bluetooth netdev cloud9ide gpio pwm eqep > admin spi tisdk weston-launch xenomai pruio] > > cmdline:[console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 > root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait coherent_pool=1M > net.ifnames=0 quiet] > > dmesg | grep pinctrl-single > > [ 1.122289] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 > size 568 > > dmesg | grep gpio-of-helper > > [ 1.134289] gpio-of-helper ocp:cape-universal: ready > > END > > debian@beaglebone:/usr/share/doc/libpruio-dev/examples$ > > > > I also tried P9_28 since I believe that is the other pru eCAP pin. I got > the following error... > > debian@beaglebone:/usr/share/doc/libpruio-dev/examples$ sudo ./pwm_cap > > failed setting input @P_IN (pin P9_28 claimed by: 48038000.mcasp) > > Okay, P9_28 makes more sense, disable the 'audio' part of hdmi.. > > disable_uboot_overlay_audio=1 > > 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/ce87719b-32ca-47b6-abff-87dad60453de%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
