yesterday i set the pins to input and qep and this day i wanted to make sure i have done everything right by checking the pin modes and what do i get?
machinekit@beaglebone:~$ config-pin -q 930 p9_30 pinmux file not found! cape universala overlay not found run "config-pin overlay cape-universala" to load the cape machinekit@beaglebone:~$ config-pin overlay cape-universala loading cape-universala overlay bash: line 0: echo: write error: no such file or directory error loading device tree overlay file: cape-universala machinekit@beaglebone:~$ also the same with: config-pin 930 input so i flashed the backup onto the restored sd card and got the same Am Dienstag, 4. Oktober 2016 22:09:24 UTC+2 schrieb Sag ich Dir nich: > > okay thanks > > Am Dienstag, 4. Oktober 2016 21:55:44 UTC+2 schrieb Charles Steinkuehler: >> >> No. The eQEP pins are only available on a few specific pins of the CPU. >> >> Refer to the pinmux spreadsheet I referenced earlier: >> >> >> https://github.com/cdsteinkuehler/beaglebone-black-pinmux/blob/hal_pru_generic/pinmux.ods >> >> >> You *HAVE* to use the pins that have the eQEP*A and eQEP*B (where * is a >> number from 0 to 2) available as a pinmux option. >> >> On 10/4/2016 2:28 PM, Sag ich Dir nich wrote: >> > is it possible to just wire the encoder (5v) to P503 and set pins 931 >> and >> > 930 to qep? >> > >> > Am Dienstag, 4. Oktober 2016 18:18:48 UTC+2 schrieb Charles >> Steinkuehler: >> >> >> >> On 10/4/2016 10:29 AM, Sag ich Dir nich wrote: >> >>> so i want to use pin 4 (SCK) and 6 (MOSI) of P503 for eQEP encoder >> >> inputs A >> >>> and B. If i read correctly, those are pins P9.31 for SCK and P9.30 >> for >> >> MOSI. >> >>> I set them to input like so: config-pin 931 input >> >>> config-pin 930 input >> >>> >> >>> but how do i connect those pins to p9.92 and P9.27? >> >> >> >> You will have to physically connect the pins on the BBB (or CRAMPS) P9 >> >> header: >> >> >> >> Connect P9.42 to P9.30 >> >> Connect P9.27 to P9.31 >> >> >> >> Once you do this, make sure you NEVER set more than one of the pins >> >> wired together to be an output. >> >> >> >>> do i need to make sure the voltage don´t go above 3.3v? Because it >> says >> >>> SCK-5V and MOSI-5V >> >> >> >> If you connect the pins on the header-side, and hook your encoder >> >> signals to the P503 pins, you can make use of the protection chip on >> the >> >> CRAMPS board and you can have 5V encoder signals. >> >> >> >> -- >> >> Charles Steinkuehler >> >> [email protected] <javascript:> >> >> >> > >> >> >> -- >> Charles Steinkuehler >> [email protected] >> > -- 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 [email protected]. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
