update QEP test

Author: pdp7

test/test_rotary.py

@@ -1,21 +1,79 @@
 #!/usr/bin/python
+#
+# BeagleBone must boot with cape-universal enabled
+# and load the cape-universala overlay in order to
+# use all the eQEP pins
+#
+# Install the latest Device Tree overlays:
+# ========================================
+# sudo apt-get upgrade bb-cape-overlays
+#
+# File: /boot/uEnv.txt
+# ====================
+# uname_r=4.4.62-ti-r99
+# cmdline=coherent_pool=1M quiet cape_universal=enable
+# cape_enable=bone_capemgr.enable_partno=cape-universala
+#
+# File: /sys/devices/platform/bone_capemgr/slots
+# ==============================================
+# 0: PF----  -1 
+# 1: PF----  -1 
+# 2: PF----  -1 
+# 3: PF----  -1 
+# 4: P-O-L-   0 Override Board Name,00A0,Override Manuf,cape-universala
+#
+# eqep0: P9_27, P9_92
+# ===================
+# config-pin P9_27 qep
+# config-pin P9_92 qep # alias for P9_42.1
+# cat /sys/devices/platform/ocp/48300000.epwmss/48300180.eqep/position
+#
+# eqep1: P8.33, P8.35
+# ===================
+# config-pin P8.33 qep 
+# config-pin P8.35 qep
+# cat /sys/devices/platform/ocp/48302000.epwmss/48302180.eqep/position
+# 
+# eqep2: P8.11, P8.12
+# ===================
+# config-pin P8.11 qep 
+# config-pin P8.12 qep 
+# cat /sys/devices/platform/ocp/48304000.epwmss/48304180.eqep/position
+#
+# alternate pins for eqep2 (mutually exclusive)
+# eqep2b: P8.41, P8.42
+# ====================
+# config-pin P8.41 qep 
+# config-pin P8.42 qep 
+# cat /sys/devices/platform/ocp/48304000.epwmss/48304180.eqep/position
+#
+#
+# How To Run This Test:
+# debian@beaglebone:~/ssh/adafruit-beaglebone-io-python$ sudo python ./setup.py install &> /dev/null &&  sudo python ./test/test_rotary.py 
+#
+#
 
 import Adafruit_BBIO.Encoder as Encoder
-# /sys/devices/platform/ocp/48300000.epwmss/48300180.eqep/position 0
-# /sys/devices/platform/ocp/48302000.epwmss/48302180.eqep/position 0
-# /sys/devices/platform/ocp/48304000.epwmss/48304180.eqep/position 882
-# P8.11: eqep2b_in
-# P8.12: eqep2a_in
-# run "config-pin p8.11 qep && config-pin p8.12 qep"
-qep = Encoder.RotaryEncoder(2)
-#qep = Encoder.QEP()
+
+qep = Encoder.RotaryEncoder(0)
 print qep
+print("qep.enable(): {0}".format(qep.enable()))
+print("qep.getPosition(): {0}".format(qep.getPosition()))
+
+qep = Encoder.RotaryEncoder(1)
+print qep
+print("qep.enable(): {0}".format(qep.enable()))
+print("qep.getPosition(): {0}".format(qep.getPosition()))
 
+qep = Encoder.RotaryEncoder(2)
+print qep
 print("qep.enable(): {0}".format(qep.enable()))
+print("qep.getPosition(): {0}".format(qep.getPosition()))
+
+
 #qep.getMode()
 #qep.setAbsolute()
 #qep.setRelative()
 #qep.setFrequency(5000)
-print("qep.getPosition(): {0}".format(qep.getPosition()))
 #qep.setPosition(100)
 #qep.disable()