Correction: root@beaglebone:/sys/kernel/debug/pinctrl/44e10800.pinmux# more pins | grep 87c pin 31 (PIN31) 44e1087c 00000007 pinctrl-single
Am Samstag, 17. Februar 2018 10:18:06 UTC+1 schrieb Karl Jacobs: > > Hello, > > I am trying to setup my Kossel mini printer with Replicape version 0B3A > on a BBB with machinekit. > I used https://github.com/sam0737/machinekit-replicape in its > ARM.Replicape.B3 version adapted to the newest > stretch machinekit package > bone-debian-9.3-machinekit-armhf-2018-02-11-4gb.img.xz (the changes being > to adapt to the > "slotless" cape loading and to correct the .icomp components). > > The BB-BONE-REPLICAP-0B3A.dtbo is loaded via u-boot load as you can see > from the attached file > giving the details on version.sh, dmesg and uEnv , where you can see that > I disabled HDMI, EMMC and > cape-universal. > > Machinekit starts up fine, I can see the extruder and hotbed temperatures, > pwm working, endstops working etc. > so it seems that the cape is loaded allright. I can also read the cape > eeprom. > The only thing not working is that the output pins of the pru (like x-dir > on P8.26) do not show any signal > but stay low. I have to manually set > > echo "61" > /sys/class/gpio/export > echo "out" > /sys/class/gpio/gpio61/direction > > to have the pru toggle the x-direction pin on P8.26 (with kernel gpio > number 61) as an example. > pru itself (with uboot_overlay_pru=/lib/firmware/AM335X-PRU-UIO-00A0.dtbo) > obviously works. > In the code of sam0737 the hpg.stepgen.00.dirpin is set to 826, and that > is confirmed with halshow. > > I was expecting that the overlay would set the outputs for the pru, as in > BB-BONE-REPLICAP-0B3A.dts > > pruicss_stepper_pins: pinmux_pruicss_stepper_pins{ > pinctrl-single,pins = < > 0x038 0x07 // P8_16 (3) = DIR_H = GPIO1_14 > 0x03C 0x07 // P8_15 (4) = DIR_E = GPIO1_15 > 0x028 0x07 // P8_14 (5) = DIR_Z = GPIO0_26 > 0x02C 0x07 // P8_17 (6) = STEP_X = GPIO0_27 > 0x034 0x07 // P8_11 (22) = step_H = GPIO1_13 > 0x030 0x07 // P8_12 (23) = Step_y = GPIO1_12 > 0x024 0x07 // P8_13 (24) = Step_z = GPIO0_23 > 0x020 0x07 // P8_19 (25) = Dir_y = GPIO0_22 > 0x07C 0x07 // P8_26 = Dir_x = GPIO1_29 > 0x078 0x07 // P9_12 = step E = GPIO1_28 > >; > }; > > cat /sys/kernel/debug/pinctrl/44e10800.pinmux/pinmux-pins | grep 7C comes > up empty. > Everything described above also happens when I use the 4.9.81-bone-rt-r9 > kernel on jessie (which still uses the slots). > Interestingly, the same BBB/Replicape hardware runs flawlessly with > redeem/kamikaze which > uses the same overlay, on a non-rt 4.1.38-bone24 kernel. > What am I missing? > Karl > -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
