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gui.py
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gui.py
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#!/usr/bin/env python
from __future__ import absolute_import
import logging
try:
from PyQt5 import QtWidgets as QtW
from PyQt5 import QtCore
except ImportError as e :
from PyQt4 import QtGui as QtW
from PyQt4 import QtCore
import os
from collections import namedtuple
from pyvisa.errors import VisaIOError
import gpib_detect
from probestation_utils import run_async
from iv_measurement import IvMeasurementWindow
from cv_measurement import CvMeasurementWindow
from strip_measurement import StripMeasurementWindow
def createSpin ( lower, upper, step, value, decimals, suffix, tooltip = u"" ) :
spin = QtW.QDoubleSpinBox ( )
spin.setRange ( lower, upper )
spin.setSingleStep ( step )
spin.setValue ( value )
spin.setDecimals ( decimals )
spin.setSuffix ( suffix )
if tooltip :
spin.setToolTip ( tooltip )
return spin
class GeneralOptionsWidget ( QtW.QGroupBox ) :
def __init__ ( self ) :
super ( GeneralOptionsWidget, self ) .__init__ ( u"Device communication" )
form = QtW.QFormLayout ( )
self.setLayout ( form )
self._serialenable_cb = QtW.QCheckBox ( )
self._serialenable_cb.toggled.connect ( self._onSerialEnableToggled )
form.addRow ( u"Enable serial device connection", self._serialenable_cb )
self._envsensorsenable_cb = QtW.QCheckBox ( )
self._envsensorsenable_cb.setDisabled ( not self._serialenable_cb.isChecked ( ) )
form.addRow ( u" Enable environment sensors", self._envsensorsenable_cb )
def _onSerialEnableToggled ( self, checked ):
self._envsensorsenable_cb.setDisabled ( not checked )
if not checked:
self._envsensorsenable_cb.setChecked ( False )
def getStatus ( self ) :
enableserial = self._serialenable_cb.isChecked ( )
enableenvsensors = self._envsensorsenable_cb.isChecked ( )
return ( enableserial, enableenvsensors )
class VoltsrcGroupWidget ( QtW.QGroupBox ) :
def __init__ ( self ) :
super ( VoltsrcGroupWidget, self ) .__init__ ( u"Voltage source" )
form = QtW.QFormLayout ( )
self.setLayout ( form )
self._start_spin = createSpin ( -1000, 1000, 0.01, 0, 2, u" V", u"Source voltage to start with" )
self._end_spin = createSpin ( -1000, 1000, 0.01, -1, 2, u" V", u"Source voltage to end with" )
self._step_spin = createSpin ( 0, 1000, 0.01, 0.1, 2, u" V", u"Source voltage difference between taking measurements" )
self._sleep_spin = createSpin ( 0, 100, 1, 1, 1, u" s", u"Time to wait between setting the source voltage and taking the measurement" )
self._compliance_spin = createSpin ( 0.1, 1000, 1, 10, 1, u" \u03BCA", u"If the compliance current is reached by one of the measured currents, the voltage source is immediately turned off." )
form.addRow ( u"Start voltage", self._start_spin )
form.addRow ( u"End voltage", self._end_spin )
form.addRow ( u"Abs step", self._step_spin )
form.addRow ( u"Wait time", self._sleep_spin )
form.addRow ( u"Abs compliance current", self._compliance_spin )
def getVoltages ( self ) :
start = self._start_spin.value ( )
end = self._end_spin.value ( )
step = self._step_spin.value ( )
sleeptime = self._sleep_spin.value ( )
compcurrent = self._compliance_spin.value ( ) * 1e-6
return ( start, end, step, sleeptime, compcurrent )
class GuardMeasWidget ( QtW.QGroupBox ) :
def __init__ ( self ) :
super ( GuardMeasWidget, self ) .__init__ ( u"Guard ring" )
form = QtW.QFormLayout ( )
self.setLayout ( form )
self._guardring_cb = QtW.QCheckBox ( )
form.addRow ( u"Enable guard ring measurement", self._guardring_cb )
def getStatus ( self ) :
guardring = self._guardring_cb.isChecked ( )
return ( guardring )
class FreqGroupWidget ( QtW.QGroupBox ) :
def __init__ ( self ) :
super ( FreqGroupWidget, self ) .__init__ ( u"LCR parameters" )
form = QtW.QFormLayout ( )
self.setLayout ( form )
self._freq_spin = createSpin ( 0.02, 2000, 0.5, 1, 2, u" kHz" )
form.addRow ( u"Frequency", self._freq_spin )
self._volt_spin = createSpin ( 0, 20, 0.5, 1, 2, u" V" )
form.addRow ( u"AC Voltage level", self._volt_spin )
def getSettings ( self ):
freq = self._freq_spin.value ( ) * 1e3
volt = self._volt_spin.value ( )
return ( freq, volt )
class StripGroupWidget ( QtW.QGroupBox ) :
def __init__ ( self ) :
super ( StripGroupWidget, self ) .__init__ ( u"Strip Measurement" )
form = QtW.QFormLayout ( )
self.setLayout ( form )
self._select_r = QtW.QComboBox ( )
self._select_r.addItems ( ["Capacitance", "Resistance/Impedance"] )
form.addRow ( u"Measurement Type", self._select_r )
def getSettings ( self ):
select = self._select_r.currentText ( )
return ( select )
class DirectoryLayout ( QtW.QHBoxLayout ):
def __init__ ( self, directory, parent_win ) :
super ( DirectoryLayout, self ) .__init__ ( )
self._parent_win = parent_win
self._label = QtW.QLabel ( u"Output folder: " )
self.addWidget ( self._label )
self._edit = QtW.QLineEdit ( directory )
self._edit.setReadOnly ( True )
self.addWidget ( self._edit )
self._browse = QtW.QPushButton ( u"Browse..." )
self._browse.clicked.connect ( self._onBrowseClicked )
self.addWidget ( self._browse )
def _onBrowseClicked ( self ) :
new_dir = QtCore.QDir.toNativeSeparators ( QtW.QFileDialog.getExistingDirectory ( self._parent_win, u"", self.getOutputDir ( ) ) )
if new_dir :
self._edit.setText ( new_dir )
def getOutputDir ( self ) :
return self._edit.text ( )
MeasurementArgs = namedtuple ( u"MeasurementArgs", [u"type",
u"serialenable",
u"devname_ardenv",
u"devname_hv",
u"devname_kei6485",
u"devname_agiE4980A",
u"start",
u"end",
u"step",
u"compcurrent",
u"guardring",
u"resistance",
u"frequency",
u"deltavolt",
u"sleep",
u"output_dir"] )
class MeasurementSetttingsError ( RuntimeError ) :
pass
class MeasurementTab ( QtW.QWidget ) :
def __init__ ( self, parent_win, output_dir ) :
super ( MeasurementTab, self ).__init__ ( )
self._parent_win = parent_win
self._vbox = QtW.QVBoxLayout ( )
self.setLayout ( self._vbox )
self._general = GeneralOptionsWidget ( )
self._vbox.addWidget ( self._general )
self._voltsrc = VoltsrcGroupWidget ( )
self._vbox.addWidget ( self._voltsrc )
self._vbox.addStretch ( 1 )
self._bottombox = QtW.QVBoxLayout ( )
self._vbox.addLayout ( self._bottombox )
self._browse_layout = DirectoryLayout ( output_dir, self._parent_win )
self._bottombox.addLayout ( self._browse_layout )
hbox = QtW.QHBoxLayout ( )
self._loadingindicator = QtW.QProgressBar ( )
self._loadingindicator.setRange ( 0, 0 )
hbox.addWidget ( self._loadingindicator )
self._loadingindicator.hide ( )
hbox.addStretch ( 1 )
self._bottombox.addLayout ( hbox )
self._start_button = QtW.QPushButton ( u"Start" )
self._start_button.setToolTip ( u"Start the measurement" )
self._start_button.resize ( self._start_button.sizeHint ( ) )
self._start_button.clicked.connect ( self._onStartClicked )
hbox.addWidget ( self._start_button )
def _addToCenter ( self, obj ) :
if isinstance ( obj, QtW.QWidget ) :
self._vbox.insertWidget ( self._vbox.count ( ) - 2, obj )
else:
self._vbox.insertLayout ( self._vbox.count ( ) - 2, obj )
def _addToBottom ( self, obj ) :
if isinstance ( obj, QtW.QWidget ) :
self._bottombox.insertWidget ( self._bottombox.count ( ) - 2, obj )
else:
self._bottombox.insertLayout ( self._bottombox.count ( ) - 2, obj )
def _setupMeasurement ( self ) :
start, end, step, sleeptime, compcurrent = self._voltsrc.getVoltages ( )
if step <= 0 :
raise MeasurementSetttingsError ( u"Abs step needs to be positive." )
if abs ( start ) > 1000 or abs ( end ) > 1000 :
raise MeasurementSetttingsError ( u"Voltage can't be larger than 1000 V." )
if not 0 <= sleeptime :
raise MeasurementSetttingsError ( u"Invalid sleep time." )
serialenable, envsensorsenable = self._general.getStatus ( )
if compcurrent <= 0 :
raise MeasurementSetttingsError ( u"Compliance current needs to be positive." )
output_dir = self._browse_layout.getOutputDir ( )
if not os.path.isdir ( output_dir ) or not os.access ( output_dir, os.W_OK ) :
raise MeasurementSetttingsError ( u"Invalid output directory." )
try :
self.detector = gpib_detect.GPIBDetector ( serialenable )
detector = self.detector
if envsensorsenable:
devname_ardenv = detector.get_resname_for ( u"Arduino Probestation Environment Sensoring" )
if devname_ardenv is None:
raise MeasurementSetttingsError ( u"Could not find an Arduino for environment sensoring.<br>Arduino might be in use by another process." )
else:
devname_ardenv = None
kei6517b_devname = detector.get_resname_for ( u"KEITHLEY INSTRUMENTS INC.,MODEL 6517B" )
kei2410_devname = detector.get_resname_for ( u"KEITHLEY INSTRUMENTS INC.,MODEL 2410" )
if kei6517b_devname is None :
hvdev_devname = kei2410_devname
logger.debug ( u" Couldn't find Keithley 6517B, trying Keithley 2410 for HV." )
if kei2410_devname is None :
hvdev_devname = kei6517b_devname
logger.debug ( u" Couldn't find Keithley 2410, trying Keithley 6517B for HV." )
if ( kei6517b_devname is not None and kei2410_devname is not None) :
raise MeasurementSetttingsError ( u"I found both Keithley 6517B and Keithley 2410!<br><br>I don't know which to use!" )
if ( kei6517b_devname is None and kei2410_devname is None ) :
raise MeasurementSetttingsError ( u"Could not find Keithley 6517B or Keithley 2410." )
else :
kei6485_devname = None
except VisaIOError :
raise MeasurementSetttingsError ( u"Could not connect to GPIB/serial devices." )
args = MeasurementArgs ( None, # type
serialenable, # serialenable
devname_ardenv, # devname_ardenv
hvdev_devname, # devname_hv
kei6485_devname, # devname_kei6485
None, # devname_agiE4980A
start, # start
end, # end
step, # step
compcurrent, # compcurrent
None, # guardring
None, # resistance
None, # frequency
None, # deltavolt
sleeptime, # sleep
output_dir ) # output_dir
return args
def _onStartClicked ( self, warning = None ) :
if self._parent_win.measurementIsRunning ( ) :
self._parent_win.showErrorDialog ( u"Measurement is currently running." )
return
check = QtW.QMessageBox.question ( self, u"Warning", warning, QtW.QMessageBox.Yes, QtW.QMessageBox.No )
if check == QtW.QMessageBox.No :
return
run_async ( self._setupMeasurement, self._onSetupFinished, self._onSetupError )
self._parent_win.setEnabled ( False )
self._loadingindicator.show ( )
def _onSetupFinished ( self, args ) :
self._loadingindicator.hide ( )
self._parent_win.startMeasurement ( args )
self._parent_win.setEnabled ( True )
def _onSetupError ( self, e ) :
if isinstance ( e, MeasurementSetttingsError ) :
self._loadingindicator.hide ( )
self._parent_win.showErrorDialog ( str ( e ) )
self._parent_win.setEnabled ( True )
else :
raise e
class IvTab ( MeasurementTab ) :
def __init__ ( self, parent_win, output_dir ) :
super ( IvTab, self ) .__init__ ( parent_win, output_dir )
self._guard = GuardMeasWidget ( )
self._addToCenter ( self._guard )
def _setupMeasurement ( self ):
args = super ( IvTab, self ) ._setupMeasurement ( ) ._asdict ( )
args = dict ( args )
guardring = self._guard.getStatus ( )
kei6485_devname = None
try:
if guardring :
kei6485_devname = self.detector.get_resname_for ( u"KEITHLEY INSTRUMENTS INC.,MODEL 6485" )
if kei6485_devname is None :
raise MeasurementSetttingsError ( u"Could not find Keithley 6485." )
except VisaIOError:
raise MeasurementSetttingsError ( u"Could not connect to GPIB/serial devices." )
args["type"] = u"IV"
args["guardring"] = guardring
args["devname_kei6485"] = kei6485_devname
return MeasurementArgs ( **args )
def _onStartClicked ( self ) :
super( IvTab, self ) ._onStartClicked ( u"Is the CV/IV box set to IV?" )
class CvTab ( MeasurementTab ) :
def __init__ ( self, parent_win, output_dir ) :
super ( CvTab, self ) .__init__ ( parent_win, output_dir )
self._freqsettings = FreqGroupWidget ( )
self._addToCenter ( self._freqsettings )
def _setupMeasurement ( self ):
args = super ( CvTab, self ) ._setupMeasurement ( ) ._asdict ( )
args = dict ( args )
freq, volt = self._freqsettings.getSettings ( )
if not 20 <= freq <= 2e6 :
raise MeasurementSetttingsError ( u"Frequency must be between 20 Hz and 2 MHz." )
if not 0 <= volt <= 20 :
raise MeasurementSetttingsError ( u"AC voltage must be between 0 V and 20 V." )
agie4980a_devname = None
try:
agie4980a_devname = self.detector.get_resname_for ( u"Agilent Technologies,E4980A" )
if agie4980a_devname is None :
raise MeasurementSetttingsError ( u"Could not find Agilent E4980A." )
except VisaIOError:
raise MeasurementSetttingsError ( u"Could not connect to GPIB/serial devices." )
args["type"] = u"CV"
args["compcurrent"] *= 1000.0 # CV box adds 1KOhm -> compcurrent goes down...
args["frequency"] = freq
args["deltavolt"] = volt
args["devname_agiE4980A"] = agie4980a_devname
return MeasurementArgs ( **args )
def _onStartClicked ( self ) :
super( CvTab, self ) ._onStartClicked ( u"Is the CV/IV box set to both CV and External?" )
class StripTab ( MeasurementTab ) :
def __init__ ( self, parent_win, output_dir ) :
super ( StripTab, self ) .__init__ ( parent_win, output_dir )
self._freqsettings = FreqGroupWidget ( )
self._addToCenter ( self._freqsettings )
self._stripsettings = StripGroupWidget ( )
self._addToCenter ( self._stripsettings )
def _setupMeasurement ( self ):
args = super ( StripTab, self ) ._setupMeasurement ( ) ._asdict ( )
args = dict ( args )
freq, volt = self._freqsettings.getSettings ( )
if not 20 <= freq <= 2e6 :
raise MeasurementSetttingsError ( u"Frequency must be between 20 Hz and 2 MHz." )
if not 0 <= volt <= 20 :
raise MeasurementSetttingsError ( u"AC voltage must be between 0 V and 20 V." )
if ( self._stripsettings.getSettings ( ) == u"Resistance/Impedance" ) :
resistance = True
else :
resistance = False
agie4980a_devname = None
try:
agie4980a_devname = self.detector.get_resname_for ( u"Agilent Technologies,E4980A" )
if agie4980a_devname is None :
raise MeasurementSetttingsError ( u"Could not find Agilent E4980A." )
except VisaIOError:
raise MeasurementSetttingsError ( u"Could not connect to GPIB/serial devices." )
args["type"] = u"Strip"
args["compcurrent"] *= 1000.0 # CV box adds 1KOhm -> compcurrent goes down...
args["frequency"] = freq
args["deltavolt"] = volt
args["resistance"] = resistance
args["devname_agiE4980A"] = agie4980a_devname
return MeasurementArgs ( **args )
def _onStartClicked ( self ) :
super( StripTab, self ) ._onStartClicked ( u"Is the CV/IV box set to both IV and C<sub>int</sub>/R<sub>int</sub>?" )
class MainWindow ( QtW.QMainWindow ) :
def __init__ ( self, output_dir ) :
super ( MainWindow, self ) .__init__ ( )
self.setWindowTitle ( u"Probe Station Software" )
self._tabwidget = QtW.QTabWidget ( )
self.setCentralWidget ( self._tabwidget )
self._ivtab = IvTab ( self, output_dir )
self._tabwidget.addTab ( self._ivtab, u"IV" )
self._cvtab = CvTab ( self, output_dir )
self._tabwidget.addTab ( self._cvtab, u"CV" )
self._striptab = StripTab ( self, output_dir )
self._tabwidget.addTab ( self._striptab, u"Strip" )
self._mwin = None
def measurementIsRunning ( self ) :
return not self._mwin is None and self._mwin.isRunning ( )
def startMeasurement ( self, args ) :
if args.type == u"IV" :
self._mwin = IvMeasurementWindow ( self, args )
elif args.type == u"CV" :
self._mwin = CvMeasurementWindow ( self, args )
elif args.type == u"Strip" :
self._mwin = StripMeasurementWindow ( self, args )
else :
raise NotImplementedError ( args.type )
self._mwin.setWindowModality ( QtCore.Qt.WindowModal )
self._mwin.set_absolute ( True )
self._mwin.start ( )
def showErrorDialog ( self, message ) :
reply = QtW.QMessageBox.critical ( self, u"Error", message, QtW.QMessageBox.Ok, QtW.QMessageBox.Ok )
if __name__ == u"__main__" :
import sys
import optparse
app = QtW.QApplication ( sys.argv )
if len ( sys.argv ) > 1 and os.path.isdir ( sys.argv[1] ) :
output_dir = sys.argv[1]
else:
output_dir = os.getcwd ( )
usage = u"Usage: python %prog [options] <default storage path>"
description = u"If no default storage path is specified, the current directory is used."
parser = optparse.OptionParser ( usage = usage, description = description )
parser.add_option ( u"-d", u"--debug", action = u"store_true", dest = u"debug", help = u"debug flag, enables more verbose console output" )
options, args = parser.parse_args ( )
logger = logging.getLogger ( u'probestation' )
ch = logging.StreamHandler ( )
logger.addHandler ( ch )
logger.setLevel ( logging.INFO )
ch.setLevel ( logging.INFO )
if options.debug :
logger.setLevel ( logging.DEBUG )
ch.setLevel ( logging.DEBUG )
logger.debug ( u"Running in DEBUG mode!" )
logger.debug ( u" Output path is: %s", output_dir )
win = MainWindow ( output_dir )
win.show ( )
sys.exit ( app.exec_ ( ) )