kopia lustrzana https://github.com/micropython/micropython
218 wiersze
5.0 KiB
Python
218 wiersze
5.0 KiB
Python
"""
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This test need a set of pins which can be set as inputs and have no external
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pull up or pull down connected.
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GP12 and GP17 must be connected together
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"""
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from machine import Pin
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import os
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mch = os.uname().machine
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if "LaunchPad" in mch:
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pin_map = [
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"GP24",
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"GP12",
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"GP14",
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"GP15",
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"GP16",
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"GP17",
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"GP28",
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"GP8",
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"GP6",
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"GP30",
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"GP31",
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"GP3",
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"GP0",
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"GP4",
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"GP5",
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]
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max_af_idx = 15
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elif "WiPy" in mch:
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pin_map = [
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"GP23",
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"GP24",
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"GP12",
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"GP13",
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"GP14",
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"GP9",
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"GP17",
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"GP28",
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"GP22",
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"GP8",
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"GP30",
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"GP31",
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"GP0",
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"GP4",
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"GP5",
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]
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max_af_idx = 15
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else:
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raise Exception("Board not supported!")
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# test initial value
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p = Pin("GP12", Pin.IN)
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Pin("GP17", Pin.OUT, value=1)
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print(p() == 1)
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Pin("GP17", Pin.OUT, value=0)
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print(p() == 0)
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def test_noinit():
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for p in pin_map:
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pin = Pin(p)
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pin.value()
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def test_pin_read(pull):
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# enable the pull resistor on all pins, then read the value
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for p in pin_map:
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pin = Pin(p, mode=Pin.IN, pull=pull)
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for p in pin_map:
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print(pin())
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def test_pin_af():
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for p in pin_map:
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for af in Pin(p).alt_list():
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if af[1] <= max_af_idx:
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Pin(p, mode=Pin.ALT, alt=af[1])
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Pin(p, mode=Pin.ALT_OPEN_DRAIN, alt=af[1])
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# test un-initialized pins
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test_noinit()
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# test with pull-up and pull-down
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test_pin_read(Pin.PULL_UP)
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test_pin_read(Pin.PULL_DOWN)
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# test all constructor combinations
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pin = Pin(pin_map[0])
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pin = Pin(pin_map[0], mode=Pin.IN)
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pin = Pin(pin_map[0], mode=Pin.OUT)
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pin = Pin(pin_map[0], mode=Pin.IN, pull=Pin.PULL_DOWN)
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pin = Pin(pin_map[0], mode=Pin.IN, pull=Pin.PULL_UP)
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pin = Pin(pin_map[0], mode=Pin.OPEN_DRAIN, pull=Pin.PULL_UP)
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pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_DOWN)
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pin = Pin(pin_map[0], mode=Pin.OUT, pull=None)
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pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_UP)
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pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.LOW_POWER)
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pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.MED_POWER)
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pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.HIGH_POWER)
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pin = Pin(pin_map[0], mode=Pin.OUT, drive=pin.LOW_POWER)
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pin = Pin(pin_map[0], Pin.OUT, Pin.PULL_DOWN)
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pin = Pin(pin_map[0], Pin.ALT, Pin.PULL_UP)
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pin = Pin(pin_map[0], Pin.ALT_OPEN_DRAIN, Pin.PULL_UP)
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test_pin_af() # try the entire af range on all pins
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# test pin init and printing
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pin = Pin(pin_map[0])
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pin.init(mode=Pin.IN)
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print(pin)
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pin.init(Pin.IN, Pin.PULL_DOWN)
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print(pin)
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pin.init(mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.LOW_POWER)
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print(pin)
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pin.init(mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.HIGH_POWER)
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print(pin)
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# test value in OUT mode
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pin = Pin(pin_map[0], mode=Pin.OUT)
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pin.value(0)
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pin.toggle() # test toggle
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print(pin())
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pin.toggle() # test toggle again
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print(pin())
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# test different value settings
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pin(1)
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print(pin.value())
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pin(0)
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print(pin.value())
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pin.value(1)
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print(pin())
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pin.value(0)
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print(pin())
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# test all getters and setters
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pin = Pin(pin_map[0], mode=Pin.OUT)
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# mode
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print(pin.mode() == Pin.OUT)
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pin.mode(Pin.IN)
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print(pin.mode() == Pin.IN)
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# pull
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pin.pull(None)
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print(pin.pull() == None)
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pin.pull(Pin.PULL_DOWN)
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print(pin.pull() == Pin.PULL_DOWN)
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# drive
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pin.drive(Pin.MED_POWER)
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print(pin.drive() == Pin.MED_POWER)
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pin.drive(Pin.HIGH_POWER)
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print(pin.drive() == Pin.HIGH_POWER)
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# id
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print(pin.id() == pin_map[0])
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# all the next ones MUST raise
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try:
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pin = Pin(pin_map[0], mode=Pin.OUT, pull=Pin.PULL_UP, drive=pin.IN) # incorrect drive value
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except Exception:
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print("Exception")
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try:
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pin = Pin(pin_map[0], mode=Pin.LOW_POWER, pull=Pin.PULL_UP) # incorrect mode value
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except Exception:
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print("Exception")
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try:
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pin = Pin(pin_map[0], mode=Pin.IN, pull=Pin.HIGH_POWER) # incorrect pull value
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except Exception:
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print("Exception")
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try:
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pin = Pin("A0", Pin.OUT, Pin.PULL_DOWN) # incorrect pin id
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except Exception:
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print("Exception")
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try:
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pin = Pin(pin_map[0], Pin.IN, Pin.PULL_UP, alt=0) # af specified in GPIO mode
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except Exception:
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print("Exception")
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try:
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pin = Pin(pin_map[0], Pin.OUT, Pin.PULL_UP, alt=7) # af specified in GPIO mode
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except Exception:
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print("Exception")
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try:
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pin = Pin(pin_map[0], Pin.ALT, Pin.PULL_UP, alt=0) # incorrect af
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except Exception:
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print("Exception")
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try:
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pin = Pin(pin_map[0], Pin.ALT_OPEN_DRAIN, Pin.PULL_UP, alt=-1) # incorrect af
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except Exception:
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print("Exception")
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try:
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pin = Pin(pin_map[0], Pin.ALT_OPEN_DRAIN, Pin.PULL_UP, alt=16) # incorrect af
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except Exception:
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print("Exception")
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try:
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pin.mode(Pin.PULL_UP) # incorrect pin mode
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except Exception:
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print("Exception")
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try:
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pin.pull(Pin.OUT) # incorrect pull
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except Exception:
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print("Exception")
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try:
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pin.drive(Pin.IN) # incorrect drive strength
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except Exception:
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print("Exception")
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try:
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pin.id("ABC") # id cannot be set
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except Exception:
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print("Exception")
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