Do you remember how you got eQEP to work? Ours just reads 0
On Sunday, November 13, 2016 at 12:44:06 PM UTC-6, Theodosis Ntegiannakis wrote: > > I am sorry for the multiple messages but I am finding new information > every time! > > eQEP just worked! > The only pins i could enable with config-pin though are P8_11, P8_12, > P9_27, P9_92 (42B). > P8_33 and P8_35 still have the invalid mode qep. > > > Now my only problem is how to read position from python. Any help would be > appreciated > > > On Sunday, November 13, 2016 at 7:29:55 PM UTC+2, Theodosis Ntegiannakis > wrote: >> >> Just updated kernel to 4.4.31-ti-r67. >> now i can find position and period in the >> /sys/devices/platform/ocp/48304000.epwmss/48304180.eqep/ >> >> but cat position keeps returning 0. >> >> when trying to use other pins: >> config-pin P8_33 qep and >> config-pin P8_35 qep >> it returns invalid mode qep >> >> the same in P8_41 and P8_42 ... >> >> have anyone tried it? is it working? >> I am not sure if it is not working or if i am looking wrong pins or my >> encoder doesnt work ok... >> My encoder middle pin is hooked to GND and the other two pins in eqepA >> and eqepB respectively. >> >> >> >> >> On Sunday, November 13, 2016 at 6:09:55 PM UTC+2, Theodosis Ntegiannakis >> wrote: >>> >>> Hello all, >>> >>> I am trying to read a Quadrature Encoder with the Beaglebone Black >>> using kenel 4.4.23-ti-r51 and Ubuntu. >>> >>> I have enabled cape-universala >>> and also enabled pins P8_11 and P8_12 using: >>> config-pin P8_11 qep >>> config-pin P8_12 qep >>> >>> But i cannot find "position" or "period" in the >>> /sys/devices/platform/ocp/48304000.epwmss/48304180.eqep/ >>> Is there something wrong i have done? >>> How can i read the position using python? >>> >>> -- 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/7a47e9f1-f3fe-481a-a760-0e5d70d1e39f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
