sequencer package

sequencer.sequencer module

Generates and runs sequences of outputs for TTLs, DACs, and electrode DACs.

class sequencer.sequencer.SequencerServer(config_path='./config.json')

Bases: DeviceServer

Generates and runs sequences of outputs for TTLs, DACs, and electrode DACs.

Connects to sequencer devices (TODO: Fancy link), as listed in config.json.

TODO: Finish documenting all the methods.

channel_manual_output(c, channel_id, output=None)

channel_mode(c, channel_id, mode=None)

fix_sequence_keys(c, sequence)

get_channels(self, cntx)

Returns a JSON-dumped dictionary of all channels on all sequencer devices.

Parameters:: cntx – The LabRAD context
Returns:: A JSON-dumped string of a dictionary, where the keys are channel names and the values are the channels.
Return type:: str

id2channel(self, channel_id)

Returns channel corresponding to channel_id. Expects 3 possibilities for channel_id:

name -> return channel with that name

@loc -> return channel at that location

name@loc -> first try name, then location

Parameters:: channel_id (str) – The identifier of the channel, as described above.
Returns:: The channel corresponding to channel_id
Raises:: KeyError` if channel cannot be foun –

name = 'sequencer'

run_sequence(self, c, sequence)

Runs the provided sequence, first ensuring that each channel has a valid sequence, then programming each device, then starting them.

First starts the AD5791 (TODO: fancy link) boards (stable DACs for electric field), then the analog (TODO: fancy link) boards, then finally the digital (TODO: fancy link) boards, starting KRbDigi01, which triggers the others, last. If a new board is added with a difference sequencer_type, it will be started along with the digital boards.

Parameters:

c – The LabRAD context
sequence (str) – A JSON-dumped string containing the sequence (TODO: Add an example of a sequence.)

send_update(c)

sequencer_mode(c, sequencer)

update = <labrad.server.Signal object>

sequencer.devices module

TODO: generally describe sequencer devices, finish documenting all of these specific devices

Generates and runs sequences of outputs for TTLs, DACs, and electrode DACs.

sequencer.devices.ad5791_board module

TODO: description, link hardware info

sequencer.devices.analog_board module

TODO: description, link hardware info

sequencer.devices.digital_board module

TODO: description, link hardware info

class sequencer.devices.digital_board.DigitalBoard(config)

Bases: DeviceWrapper

__init__(config): defaults

initialize()

make_sequence_bytes(sequence)

program_sequence(sequence)

sequencer_type = 'digital'

set_mode(mode)

start_sequence()

write_channel_manual_outputs()

write_channel_modes()

class sequencer.devices.digital_board.DigitalChannel(config)

Bases: object

__init__(config): defaults

name: non-defaults

set_manual_output(state)

set_mode(mode)

sequencer.devices.digital_board.get_out(channel_sequence, t)

sequencer.devices.digital_board.time_to_ticks(clk, time)

class sequencer.sequencer.SequencerServer(config_path='./config.json')

Bases: DeviceServer

Generates and runs sequences of outputs for TTLs, DACs, and electrode DACs.

Connects to sequencer devices (TODO: Fancy link), as listed in config.json.

TODO: Finish documenting all the methods.

channel_manual_output(c, channel_id, output=None)

channel_mode(c, channel_id, mode=None)

fix_sequence_keys(c, sequence)

get_channels(self, cntx)

Returns a JSON-dumped dictionary of all channels on all sequencer devices.

Parameters:: cntx – The LabRAD context
Returns:: A JSON-dumped string of a dictionary, where the keys are channel names and the values are the channels.
Return type:: str

id2channel(self, channel_id)

Returns channel corresponding to channel_id. Expects 3 possibilities for channel_id:

name -> return channel with that name

@loc -> return channel at that location

name@loc -> first try name, then location

Parameters:: channel_id (str) – The identifier of the channel, as described above.
Returns:: The channel corresponding to channel_id
Raises:: KeyError` if channel cannot be foun –

name = 'sequencer'

run_sequence(self, c, sequence)

Runs the provided sequence, first ensuring that each channel has a valid sequence, then programming each device, then starting them.

First starts the AD5791 (TODO: fancy link) boards (stable DACs for electric field), then the analog (TODO: fancy link) boards, then finally the digital (TODO: fancy link) boards, starting KRbDigi01, which triggers the others, last. If a new board is added with a difference sequencer_type, it will be started along with the digital boards.

Parameters:

c – The LabRAD context
sequence (str) – A JSON-dumped string containing the sequence (TODO: Add an example of a sequence.)

send_update(c)

sequencer_mode(c, sequencer)

update = <labrad.server.Signal object>