Digital Port
Instances of port
that represent Digital devices.
- class pymoa.device.digital.DigitalChannel(name='', **kwargs)
Bases:
pymoa.device.port.Channel
A abstract single channel digital device.
- state: Optional[bool] = None
The state of the channel.
state
is aBooleanProperty
and defaults to None.
- await write_state(state: bool, **kwargs)
A stub method defining the prototype for
write_state()
of derived classes.- Parameters
- state: bool
The value to set the state to.
Note
When called, it raises a NotImplementedError if not overwritten.
- class pymoa.device.digital.DigitalPort(name='', **kwargs)
Bases:
pymoa.device.port.Port
A abstract multi-channel digital device.
- await write_state(channel: str, state: bool, **kwargs)
A abstract method for setting the state. See
ChannelBase
for details.Note
If supported, the method needs to be overwritten by a base class otherwise, it raises a NotImplementedError.
- await write_states(high: Iterable[str] = (), low: Iterable[str] = (), **kwargs)
A stub method defining the prototype for
write_state()
of derived classes.For devices that support it, the properties passed in high and low can be set to the requested state simultaneously.
- Parameters
- high: list
A list of the names of the properties to set to high (True)
- low: list
A list of the names of the properties to set to low (False)
Note
When called, it raises a NotImplementedError if not overwritten.
- class pymoa.device.digital.RandomDigitalChannel(name='', **kwargs)
Bases:
pymoa.device.digital.DigitalChannel
A channel that generates random digital values. Mainly useful as a testing device.
- await read_state()
A abstract method causing a read of the state. This method should not return the state, but rather cause the device to read the state and update the appropriate instance property with the current state.
Note
If supported, the method needs to be overwritten by a base class otherwise, it raises a NotImplementedError.
- await write_state(state: bool, **kwargs)
A stub method defining the prototype for
write_state()
of derived classes.- Parameters
- state: bool
The value to set the state to.
Note
When called, it raises a NotImplementedError if not overwritten.
- class pymoa.device.digital.RandomDigitalPort(name='', **kwargs)
Bases:
pymoa.device.digital.DigitalPort
A port that generates random digital values. Mainly useful as a testing device.
- await read_state()
A abstract method causing a read of the state. This method should not return the state, but rather cause the device to read the state and update the appropriate instance property with the current state.
Note
If supported, the method needs to be overwritten by a base class otherwise, it raises a NotImplementedError.
- await write_states(**kwargs: bool)
A stub method defining the prototype for
write_state()
of derived classes.For devices that support it, the properties passed in high and low can be set to the requested state simultaneously.
- Parameters
- high: list
A list of the names of the properties to set to high (True)
- low: list
A list of the names of the properties to set to low (False)
Note
When called, it raises a NotImplementedError if not overwritten.