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] <javascript:> >
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