mirror of
https://github.com/xtacocorex/CHIP_IO
synced 2025-07-20 04:43:21 +00:00
151 lines
3.7 KiB
Python
Executable File
151 lines
3.7 KiB
Python
Executable File
#!/usr/bin/python
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import CHIP_IO.GPIO as GPIO
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import time
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import threading
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num_callbacks = 0
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def myfuncallback(channel):
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global num_callbacks
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num_callbacks += 1
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print "CALLBACK LIKE DRAKE IN HOTLINE BLING"
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loopfunction_exit = False
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def loopfunction():
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print "LOOP FUNCTION"
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for i in xrange(4):
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if loopfunction_exit:
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break
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if i % 2:
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print "SETTING CSID0 LOW (i=", i, ")"
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GPIO.output("CSID0", GPIO.LOW)
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else:
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print "SETTING CSID0 HIGH (i=", i, ")"
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GPIO.output("CSID0", GPIO.HIGH)
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print "SLEEPING"
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time.sleep(1)
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num_errs = 0
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GPIO.selftest(0)
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GPIO.setup("XIO-P0", GPIO.IN)
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GPIO.setup("CSID0", GPIO.OUT, initial=GPIO.HIGH)
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if (GPIO.input("XIO-P0") != GPIO.HIGH):
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print "A high output on CSI0 does not lead to a high input on XIO-P0."
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print "Perhaps you forgot to connect them?"
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num_errs += 1
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GPIO.cleanup()
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GPIO.setup("XIO-P0", GPIO.IN)
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GPIO.setup("CSID0", GPIO.OUT, initial=GPIO.LOW)
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if (GPIO.input("XIO-P0") != GPIO.LOW):
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print "A low output on CSI0 does not lead to a low input on XIO-P0."
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print "Perhaps you forgot to connect them?"
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num_errs += 1
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GPIO.cleanup()
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GPIO.setup("XIO-P0", GPIO.IN)
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GPIO.setup("CSID0", GPIO.OUT)
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# VERIFY SIMPLE FUNCTIONALITY
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print "VERIFY SIMPLE FUNCTIONALITY"
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print "READING XIO-PI"
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GPIO.output("CSID0", GPIO.HIGH)
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assert(GPIO.input("XIO-P0") == GPIO.HIGH)
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GPIO.output("CSID0", GPIO.LOW)
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print "LOW", GPIO.input("XIO-P0")
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assert(GPIO.input("XIO-P0") == GPIO.LOW)
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# ==============================================
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# EDGE DETECTION - AP-EINT1
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print "SETTING UP EDGE DETECTION ON AP-EINT1"
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GPIO.setup("AP-EINT1", GPIO.IN)
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print "adding event detect"
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GPIO.add_event_detect("AP-EINT1", GPIO.RISING)
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print "VERIFYING EDGE DETECT"
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f = open("/sys/class/gpio/gpio193/edge", "r")
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edge = f.read()
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f.close()
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print "edge='", edge, "'"
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assert(edge == "rising\n")
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GPIO.remove_event_detect("AP-EINT1")
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# ==============================================
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# EDGE DETECTION - AP-EINT3
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print "SETTING UP EDGE DETECTION ON AP-EINT3"
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GPIO.setup("AP-EINT3", GPIO.IN)
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GPIO.add_event_detect("AP-EINT3", GPIO.BOTH)
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print "VERIFYING EDGE DETECT"
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f = open("/sys/class/gpio/gpio35/edge", "r")
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edge = f.read()
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f.close()
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print "EDGE: %s" % edge
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assert(edge == "both\n")
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GPIO.remove_event_detect("AP-EINT3")
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# ==============================================
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# EDGE DETECTION - EXPANDED GPIO
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print "SETTING UP EDGE DETECTION ON XIO-P0"
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GPIO.add_event_detect("XIO-P0", GPIO.FALLING, myfuncallback)
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print "VERIFYING EDGE DETECT"
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base = GPIO.get_gpio_base()
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gfile = "/sys/class/gpio/gpio%d/edge" % base
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f = open(gfile, "r")
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edge = f.read()
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f.close()
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print "EDGE: %s" % edge
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assert(edge == "falling\n")
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# LOOP WRITING ON CSID0 TO HOPEFULLY GET CALLBACK TO WORK
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print "WAITING FOR CALLBACKS"
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loopfunction()
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print "num_callbacks=", num_callbacks
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print "PRESS CONTROL-C TO EXIT IF SCRIPT GETS STUCK"
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GPIO.remove_event_detect("XIO-P0")
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try:
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# WAIT FOR EDGE
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t = threading.Thread(target=loopfunction)
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t.start()
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print "WAITING FOR EDGE"
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GPIO.wait_for_edge("XIO-P0", GPIO.FALLING)
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print "WE'VE FALLEN LIKE COOLIO'S CAREER"
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except:
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pass
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print "Exit thread"
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loopfunction_exit = True
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t.join() # Wait till the thread exits.
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GPIO.remove_event_detect("XIO-P0")
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print "TESTING ERRORS THROWN WHEN SPECIFYING EDGE DETECTION ON UNAUTHORIZED GPIO"
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GPIO.setup("CSID1", GPIO.IN)
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try:
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GPIO.add_event_detect("CSID1", GPIO.FALLING, myfuncallback)
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print "Oops, it did not throw an exception! BUG!!!"
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except:
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pass
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print "TESTING ERRORS THROWN WHEN WRITING TO A GPIO WITH NO DIRECTION"
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try:
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GPIO.output("CSID1", GPIO.LOW)
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print "Oops, it did not throw an exception! BUG!!!"
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except:
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pass
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print "CLEANUP"
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GPIO.cleanup()
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print "done,", num_errs, " errors"
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