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Merge branch 'pylint' of https://github.com/craigargh/Adafruit_Learning_System_Guides into pylint

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This commit is contained in:
Aaron Dershem 2018-05-14 17:04:20 -04:00
commit 8fb8ca76c8
2 changed files with 20 additions and 10 deletions
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24
EPROM_Emulator/debouncer.py
View file

@ -40,8 +40,10 @@ class Debouncer(object):
def __init__(self, pin, mode=None, interval=0.010): def __init__(self, pin, mode=None, interval=0.010):
"""Make am instance. """Make am instance.
:param int pin: the pin (from board) to debounce :param int pin: the pin (from board) to debounce
:param int mode: digitalio.Pull.UP or .DOWN (default is no pull up/down) :param int mode: digitalio.Pull.UP or .DOWN (default is no
:param int interval: bounce threshold in seconds (default is 0.010, i.e. 10 milliseconds) pull up/down)
:param int interval: bounce threshold in seconds (default is 0.010,
i.e. 10 milliseconds)
""" """
self.state = 0x00 self.state = 0x00
self.pin = digitalio.DigitalInOut(pin) self.pin = digitalio.DigitalInOut(pin)
@ -70,7 +72,8 @@ class Debouncer(object):
return (self.state & bits) != 0 return (self.state & bits) != 0
def update(self): def update(self):
"""Update the debouncer state. Must be called before using any of the properties below""" """Update the debouncer state. Must be called before using any of
the properties below"""
self.__unset_state(Debouncer.CHANGED_STATE) self.__unset_state(Debouncer.CHANGED_STATE)
current_state = self.pin.value current_state = self.pin.value
if current_state != self.__get_state(Debouncer.UNSTABLE_STATE): if current_state != self.__get_state(Debouncer.UNSTABLE_STATE):
@ -78,7 +81,8 @@ class Debouncer(object):
self.__toggle_state(Debouncer.UNSTABLE_STATE) self.__toggle_state(Debouncer.UNSTABLE_STATE)
else: else:
if time.monotonic() - self.previous_time >= self.interval: if time.monotonic() - self.previous_time >= self.interval:
if current_state != self.__get_state(Debouncer.DEBOUNCED_STATE): debounced_state = self.__get_state(Debouncer.DEBOUNCED_STATE)
if current_state != debounced_state:
self.previous_time = time.monotonic() self.previous_time = time.monotonic()
self.__toggle_state(Debouncer.DEBOUNCED_STATE) self.__toggle_state(Debouncer.DEBOUNCED_STATE)
self.__set_state(Debouncer.CHANGED_STATE) self.__set_state(Debouncer.CHANGED_STATE)
@ -90,10 +94,14 @@ class Debouncer(object):
@property @property
def rose(self): def rose(self):
"""Return whether the debounced input went from low to high at the most recent update.""" """Return whether the debounced input went from low to high at
return self.__get_state(self.DEBOUNCED_STATE) and self.__get_state(self.CHANGED_STATE) the most recent update."""
return self.__get_state(self.DEBOUNCED_STATE) \
and self.__get_state(self.CHANGED_STATE)
@property @property
def fell(self): def fell(self):
"""Return whether the debounced input went from high to low at the most recent update.""" """Return whether the debounced input went from high to low at
return (not self.__get_state(self.DEBOUNCED_STATE)) and self.__get_state(self.CHANGED_STATE) the most recent update."""
return (not self.__get_state(self.DEBOUNCED_STATE)) \
and self.__get_state(self.CHANGED_STATE)

6
EPROM_Emulator/emulator.py
View file

@ -104,7 +104,8 @@ class Emulator(object):
self.address_clock_pin.value = CLOCK_INACTIVE self.address_clock_pin.value = CLOCK_INACTIVE
def __output_on_port_a(self, data_byte): def __output_on_port_a(self, data_byte):
"""A hack to get around the limitation of the 23017 library to use 8-bit ports""" """A hack to get around the limitation of the 23017
library to use 8-bit ports"""
self.mcp.gpio = (self.mcp.gpio & 0xFF00) | (data_byte & 0x00FF) self.mcp.gpio = (self.mcp.gpio & 0xFF00) | (data_byte & 0x00FF)
def enter_program_mode(self): def enter_program_mode(self):
@ -113,7 +114,8 @@ class Emulator(object):
self.led_pin.value = LED_OFF self.led_pin.value = LED_OFF
def enter_emulate_mode(self): def enter_emulate_mode(self):
"""Enter emulate mode, giving control of the emulator ram to the host.""" """Enter emulate mode, giving control of the emulator
ram to the host."""
self.mode_pin.value = EMULATE_USE self.mode_pin.value = EMULATE_USE
self.led_pin.value = LED_ON self.led_pin.value = LED_ON