I'm trying to get quadrature encoder signals into my new Beaglebone Black board. I have a Rev. C BBB running: Linux beaglebone 3.8.13-bone47 #1 SMP Fri Apr 11 01:36:09 UTC 2014 armv7l GNU/Linux
*** 1st question: I understand that recent Debian distributions on the BBB have eQEP drivers included. Does the above version have the eQEP drivers? If not, which version do I need? *** 2nd question: I copied the pre-compiled dtbo files from here: https://github.com/Teknoman117/beaglebot/tree/master/encoders/dts to /lib/firmware as explained in the readme file. The files I copied are: bone_eqep0-00A0.dtbo bone_eqep1-00A0.dtbo bone_eqep2-00A0.dtbo bone_eqep2b-00A0.dtbo Problem is when I issue this command: root@beaglebone:/sys/devices/bone_capemgr.9# echo bone_eqep2b > /sys/devices/bone_capemgr.9/slots -bash: echo: write error: Invalid argument you can see it gives me an invalid argument error. And I don't see the slots file change to indicate that it has loaded the eQEP driver. This is what I see in the slots file: 0: 54:PF--- 1: 55:PF--- 2: 56:PF--- 3: 57:PF--- 4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G 5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI Do you know what I'm doing wrong? Thanks, Kirk -- 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]. For more options, visit https://groups.google.com/d/optout.
