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lines changed Original file line number Diff line number Diff line change 11#!/usr/bin/python
22
3- # ===========================================================================
4- # Adafruit_BBIO.Encoder Class
5- # ===========================================================================
6- # refers to graycatlabs/PyBBIO/bbio/libraries/RotaryEncoder/rotary_encoder.py
7-
8- # BeagleBone must boot with cape-universal enabled
9- # and load the cape-universala overlay in order to
10- # use all the eQEP pins
11- #
12- # Install the latest Device Tree overlays:
13- # ========================================
14- # sudo apt-get upgrade bb-cape-overlays
15- #
16- # File: /boot/uEnv.txt
17- # ====================
18- # uname_r=4.4.62-ti-r99
19- # cmdline=coherent_pool=1M quiet cape_universal=enable
20- # cape_enable=bone_capemgr.enable_partno=cape-universala
21- #
22- # File: /sys/devices/platform/bone_capemgr/slots
23- # ==============================================
24- # 0: PF---- -1
25- # 1: PF---- -1
26- # 2: PF---- -1
27- # 3: PF---- -1
28- # 4: P-O-L- 0 Override Board Name,00A0,Override Manuf,cape-universala
29- #
30- # eqep0: P9_27, P9_92
31- # ===================
32- # config-pin P9_27 qep
33- # config-pin P9_92 qep # alias for P9_42.1
34- # cat /sys/devices/platform/ocp/48300000.epwmss/48300180.eqep/position
35- #
36- # eqep1: P8.33, P8.35
37- # ===================
38- # config-pin P8.33 qep
39- # config-pin P8.35 qep
40- # cat /sys/devices/platform/ocp/48302000.epwmss/48302180.eqep/position
41- #
42- # eqep2: P8.11, P8.12
43- # ===================
44- # config-pin P8.11 qep
45- # config-pin P8.12 qep
46- # cat /sys/devices/platform/ocp/48304000.epwmss/48304180.eqep/position
47- #
48- # alternate pins for eqep2 (mutually exclusive)
49- # eqep2b: P8.41, P8.42
50- # ====================
51- # config-pin P8.41 qep
52- # config-pin P8.42 qep
53- # cat /sys/devices/platform/ocp/48304000.epwmss/48304180.eqep/position
54-
553from subprocess import call
564import os
575
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