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##########################################################################################
# Instructions to use:
# - go to the same directory as the 'device.db' file
# (otherwise you must specify the correct --device-db)
# - run this file as `artiq_run dds_control_interface.py`
# [-] specify `--device-db path/to/device.db` parameter with proper path if needed
# [-] add a & to the end of the call to run as a background process
##########################################################################################
import sys
import os
from PyQt5.QtWidgets import *
# from PyQt5.QtGui import QIcon, QDoubleValidator
# from PyQt5.QtCore import pyqtSlot
import json
from artiq.experiment import *
# TODO:
# [ ] Check why amplitude fails to update
# [✓] Set initial values of inputs to correct ones based on dict
# [✓] └ Look for a saved json at start to get initial values
# [ ] └ Make use of the initial 'state' variable
# [ ] Check inputs
# [ ] Add options to specify datafiles
# [ ] Catch errors and send according popups
# [ ] Refactor to remove the artiq/dds handle issue
# [ ] Add tabs to store different configurations
JSON_DATAFILE = 'dds_states.json'
class SingleChannel(QWidget): #{{{
"""Class to control a single given Urukul channel"""
def __init__(self, core, dds, name="Default Name", initial_pars=None):
# Must pass artiq and dds handles. I don't know how to work around this
# but should be doable somehow
QWidget.__init__(self)
self.core = core
self.dds = dds
if initial_pars is None:
# PArameter dictionary to store and save current DDS states
self.state_params = {
'state' : 0 ,
'freq' : 200*MHz ,
'amp' : 1. ,
'att' : 0*dB
}
else:
self.state_params = initial_pars
print(self.state_params)
# Each DDS will have each own enablable group
self.groupbox = QGroupBox(name)
self.groupbox.setCheckable(True)
# Stack all other widgets vertically
vbox = QVBoxLayout()
self.groupbox.setLayout(vbox)
# ON/OFF switch {{{
self.state_button = QPushButton()
self.state_button.setText("OFF")
self.state_button.setCheckable(True)
self.state_button.setDefault(False)
self.state_button.setStyleSheet("background-color: #b75d5d")
# Dont't know why I can't pass self.switch_state by itself...
self.state_button.clicked.connect(lambda: self.switch_state())
vbox.addWidget(self.state_button)
# }}}
# Frecuency input {{{
self.freq_input = QDoubleSpinBox()
self.freq_input.setPrefix("Frequency: ")
self.freq_input.setRange(1., 400.)
self.freq_input.setSingleStep(0.1)
self.freq_input.setValue(self.state_params['freq']/MHz)
self.freq_input.setSuffix(" MHz")
self.freq_input.valueChanged.connect(self.freq_change)
vbox.addWidget(self.freq_input)
# }}}
# Amplitude input {{{
self.amp_input = QDoubleSpinBox()
self.amp_input.setPrefix("Amplitude: ")
self.amp_input.setRange(0., 1.)
self.amp_input.setSingleStep(0.1)
self.amp_input.setValue(self.state_params['amp'])
self.amp_input.valueChanged.connect(self.amp_change)
vbox.addWidget(self.amp_input)
# }}}
# Attenuation input {{{
self.att_input = QDoubleSpinBox()
self.att_input.setPrefix("Attenuation: ")
self.att_input.setRange(0., 31.)
self.att_input.setSingleStep(0.1)
self.att_input.setValue(self.state_params['att'])
self.att_input.setSuffix(" dB")
self.att_input.valueChanged.connect(self.att_change)
vbox.addWidget(self.att_input)
# }}}
def update_state(self, key, new_state):
"""Update the parameters dictionary"""
self.state_params[key] = new_state
def get_state_param(self, key):
"""Get a key from the parameters dictionary"""
return self.state_params[key]
def get_state(self):
"""Returns the parameter dictionary"""
return self.state_params
def get_widget(self):
"""Return the widgets to the main app"""
return self.groupbox
# Toggle DDS on/off switch {{{
def switch_state(self):
"""Toggles the state of this DDS"""
if self.state_button.isChecked():
self.switch_state_kernel(True) # Turns it on
self.state_button.setText("ON") # Change text and color
self.state_button.setStyleSheet("background-color: #5db75d;")
else:
self.switch_state_kernel(False) # Turns it off
self.state_button.setText("OFF") # Change text and color
self.state_button.setStyleSheet("background-color: #b75d5d;")
@kernel
def switch_state_kernel(self, state):
self.core.break_realtime()
self.dds.sw.set_o(state)
#}}}
# Attenuation {{{
def att_change(self, new_att):
"""Update attenuation on channel"""
self.att_change_kernel(new_att)
self.update_state('att', new_att)
@kernel
def att_change_kernel(self, new_att):
self.core.break_realtime()
self.dds.set_att(new_att)
# }}}
# Frequency {{{
def freq_change(self, new_freq):
"""Update frecuency on channel (Forces MHz)"""
self.freq_change_kernel(new_freq)
self.update_state('freq', new_freq*MHz) # Force MHz. Change?
@kernel
def freq_change_kernel(self, new_freq):
self.core.break_realtime()
delay(10*ms)
self.dds.set(new_freq*MHz)
# }}}
# Amplitude {{{
def amp_change(self, new_amp):
"""Update amplitude on this channel"""
self.amp_change_kernel(new_amp)
self.state_params['amp'] = new_amp
@kernel
def amp_change_kernel(self, new_amp):
self.core.break_realtime()
# this needs fixing, reading from the dict is not the way
self.dds.set(self.get_state_param('freq'), amplitude=new_amp)
self.dds.cpld.io_update.pulse_mu(8) # Try this to get the amplitude updated?
# }}}
#}}}
class DDSManager(QWidget): #{{{
"""Main application class"""
def __init__(self, core, ch0, ch1):
super().__init__()
#self.artiq = artiq # get the artiq handle
self.core = core
self.ch0 = ch0
self.ch1 = ch1
# Make a default initial parameter dictionary to pass to the channels
# in case a real one is found, this gets stepped on with the real values
initial_params = {'ch0': None, 'ch1': None}
initial_params.update(self.load_state())
self.setWindowTitle("DDS Manager GUI")
layout = QGridLayout()
self.setLayout(layout)
# Create both output widgets
self.laser_1 = SingleChannel(core, ch0, name="Laser 1",
initial_pars=initial_params['ch0'])
layout.addWidget(self.laser_1.get_widget(), 0, 0)
self.laser_2 = SingleChannel(core, ch1, name="Laser 2",
initial_pars=initial_params['ch1'])
layout.addWidget(self.laser_2.get_widget(), 0, 1)
save_btn = QPushButton("Save state")
save_btn.clicked.connect(self.save_state)
layout.addWidget(save_btn, 1, 0)
start_btn = QPushButton("Start")
start_btn.clicked.connect(self.start)
layout.addWidget(start_btn, 1, 1)
def load_state(self):
"""Load the JSON parameter dictionary if existent"""
if not os.path.isfile(JSON_DATAFILE):
return False
with open(JSON_DATAFILE, "r") as in_json:
return json.load(in_json)
def save_state(self):
"""Store the parameter dictionary as a JSON file"""
ch0_data = self.laser_1.get_state()
ch1_data = self.laser_2.get_state()
out_json = {'ch0':ch0_data, 'ch1':ch1_data}
with open(JSON_DATAFILE, 'w') as log:
json.dump(out_json, log, indent=1)
def start(self):
"""TODO: Check scheduler to see if the process be re-started after finished"""
print(self.artiq.scheduler.get_status())
self.artiq.scheduler.submit(priority=-1)
print(self.artiq.scheduler.get_status())
#}}}
class GUIManager(EnvExperiment): #{{{
def build(self):
self.core = self.get_device("core")
self.setattr_device("scheduler")
self.ch0 = self.get_device("urukul0_ch0")
self.ch1 = self.get_device("urukul0_ch1")
def run(self):
self.init_kernel()
app = QApplication(sys.argv)
screen = DDSManager(self.core, self.ch0, self.ch1)
screen.show()
sys.exit(app.exec_())
@kernel
def init_kernel(self):
"""Initialize core and channels"""
self.core.reset()
delay(100*ms)
self.ch0.cpld.init()
self.ch0.init()
self.ch1.cpld.init()
self.ch1.init()
self.ch0.sw.off()
self.ch1.sw.off()
delay(100*ms)
#}}}