def __init__(self, dma_channel=0, subcycle_time_us=20000, \
pulse_incr_us=10):
"""
Makes sure PWM is setup with the correct increment granularity and
subcycle time.
"""
self._dma_channel = dma_channel
self._subcycle_time_us = subcycle_time_us
if _PWM.is_setup():
_pw_inc = _PWM.get_pulse_incr_us()
if not pulse_incr_us == _pw_inc:
raise AttributeError(("Error: PWM is already setup with pulse-"
"width increment granularity of %sus instead of %sus")\
% (_pw_inc, self.pulse_incr_us))
else:
setup(pulse_incr_us=pulse_incr_us)
def __init__(self, dma_channel=0, subcycle_time_us=20000, \
pulse_incr_us=10):
"""
Makes sure PWM is setup with the correct increment granularity and
subcycle time.
"""
self._dma_channel = dma_channel
self._subcycle_time_us = subcycle_time_us
if _PWM.is_setup():
_pw_inc = _PWM.get_pulse_incr_us()
if not pulse_incr_us == _pw_inc:
raise AttributeError(("Error: PWM is already setup with pulse-"
"width increment granularity of %sus instead of %sus")\
% (_pw_inc, self.pulse_incr_us))
else:
setup(pulse_incr_us=pulse_incr_us)
def is_setup():
""" Returns 1 if setup(..) has been called, else 0 """
return _PWM.is_setup()
def is_setup():
""" Returns 1 if setup(..) has been called, else 0 """
return _PWM.is_setup()