class PresetHandler(object):
def __init__(self, ui):
self.ui = ui
self.ui.cal_presets_ui.full_2port_button.clicked.connect(self.full_2port_cal)
self.ui.cal_presets_ui.trl_2port_button.clicked.connect(self.trl_2port_cal)
self.ui.cal_presets_ui.cal_kit_combo.currentIndexChanged.connect(self.toggle_buttons)
self.executor = None
def toggle_buttons(self):
if self.ui.cal_presets_ui.cal_kit_combo.currentIndex() == 0:
self.ui.cal_presets_ui.trl_2port_button.setEnabled(True)
if self.ui.cal_presets_ui.cal_kit_combo.currentIndex() == 1:
self.ui.cal_presets_ui.trl_2port_button.setEnabled(False)
def _set_cal_kit(self):
if self.ui.cal_presets_ui.cal_kit_combo.currentIndex() == 0:
self.channel.set_cal_kit(1)
elif self.ui.cal_presets_ui.cal_kit_combo.currentIndex() == 1:
self.channel.set_cs5()
self.channel.set_cal_kit(30)
def _connect(self):
if self.executor is not None:
return self.channel # Reuse previously opened object (and socket)
try:
chan_number = int(self.ui.cal_presets_ui.channel_combo.currentText())
self.channels = range(1,chan_number+1)
ip_port = str(self.ui.vna_ip_field.text()).split(":")
ip = ip_port[0]
port = int(ip_port[1])
self.channel = VnaChannel(ip, port, 1) # Do connection
except IndexError:
QtGui.QMessageBox.information(self.ui.centralwidget,
"IP no especificado",
"Es necesario especificar un IP y puerto en el formato IP:puerto")
def full_2port_cal(self):
self._connect()
def assign_channels(vna):
for ch in self.channels:
vna.channel = ch
vna.set_sparam(1, ch)
self.channel.channel = 1
if len(self.channels) == 4:
self.channel.set_four_channels()
else:
self.channel.set_one_channel()
for ch in self.channels:
self.channel.channel = ch
self.channel.set_sparam(1, ch)
for ch in self.channels:
self.channel.channel = ch
self._set_cal_kit() # Find and set cal kit
for ch in self.channels:
self.channel.channel = ch
self.channel.set_cal_type(CalType.FULL_2PORT)
QtGui.QMessageBox.information(self.ui.centralwidget,"Open", "Conectar open")
for ch in self.channels:
self.channel.channel = ch
self.channel.is_ready()
self.channel.cal_measure_open(1)
self.channel.is_ready()
self.channel.cal_measure_open(2)
self.channel.is_ready()
assign_channels(self.channel)
QtGui.QMessageBox.information(self.ui.centralwidget,"Short", "Conectar short")
for ch in self.channels:
self.channel.channel = ch
self.channel.is_ready()
self.channel.cal_measure_short(1)
self.channel.is_ready()
self.channel.cal_measure_short(2)
self.channel.is_ready()
assign_channels(self.channel)
QtGui.QMessageBox.information(self.ui.centralwidget,"Load", "Conectar load")
for ch in self.channels:
self.channel.channel = ch
self.channel.is_ready()
self.channel.cal_measure_load(1)
self.channel.is_ready()
self.channel.cal_measure_load(2)
self.channel.is_ready()
assign_channels(self.channel)
QtGui.QMessageBox.information(self.ui.centralwidget,"Thru", "Conectar thru")
for ch in self.channels:
self.channel.channel = ch
self.channel.is_ready()
self.channel.cal_measure_thru(1, 2)
self.channel.is_ready()
self.channel.cal_measure_thru(2, 1)
self.channel.is_ready()
assign_channels(self.channel)
isolation = QtGui.QMessageBox.question(self.ui.centralwidget,"Isolation", "Calibrar isolation? (opcional)",
QtGui.QMessageBox.Yes| QtGui.QMessageBox.No)
if isolation == QtGui.QMessageBox.Yes:
QtGui.QMessageBox.information(self.ui.centralwidget,"Isolation", "Conectar load en 1 y 2")
for ch in self.channels:
self.channel.channel = ch
self.channel.is_ready()
self.channel.cal_measure_isol(1, 2)
self.channel.is_ready()
assign_channels(self.channel)
self.channel.is_ready()
should_save = QtGui.QMessageBox.question(self.ui.centralwidget, "Guardar?", "Guardar calibracion?",
QtGui.QMessageBox.Yes| QtGui.QMessageBox.No)
if should_save == QtGui.QMessageBox.Yes:
for ch in self.channels:
self.channel.channel = ch
self.channel.save_cal()
def trl_2port_cal(self):
self._connect()
for ch in self.channels:
self.channel.channel = ch
self.channel.set_cal_kit(1) # Calkit 85033E
self.channel.set_cal_type(CalType.TRL_2PORT)
QtGui.QMessageBox.information(self.ui.centralwidget,"Thru", "Conectar THRU")
for ch in self.channels:
self.channel.channel = ch
self.channel.trl_thru_line(1, 2)
self.channel.is_ready()
self.channel.trl_thru_line(2, 1)
self.channel.is_ready()
QtGui.QMessageBox.information(self.ui.centralwidget,"Reflect", "Conectar REFLECT")
for ch in self.channels:
self.channel.channel = ch
self.channel.trl_reflect(1)
self.channel.is_ready()
self.channel.trl_reflect(2)
self.channel.is_ready()
QtGui.QMessageBox.information(self.ui.centralwidget,"Line/Match", "Conectar Line Match")
for ch in self.channels:
self.channel.channel = ch
self.channel.trl_line_match(1,2)
self.channel.is_ready()
self.channel.trl_line_match(2,1)
self.channel.is_ready()
should_save = QtGui.QMessageBox.question(self.ui.centralwidget, "Guardar?", "Guardar calibracion?",
QtGui.QMessageBox.Yes| QtGui.QMessageBox.No)
if should_save == QtGui.QMessageBox.Yes:
for ch in self.channels:
self.channel.channel = ch
self.channel.save_cal()
def VnaMeasure(ui, ip, port):
# Disable button after click
ui.measure_vna.setEnabled(False)
ui.left_button.setEnabled(False)
ui.right_button.setEnabled(False)
channel = VnaChannel(ip, port, 1) # One channel
# channel.reset()
channel.set_four_channels()
sdata = [] # Clean sdata for each measure
for idx, spar in enumerate([SParameters.S11, SParameters.S12, SParameters.S21, SParameters.S22]):
print "Now measuring: " + str(spar)
channel.set_sweep_type(SweepType.LINEAR)
channel.channel = idx + 1
points = str(ui.points_field.text())
fmat = DataFormat.LOG # By default we use MLOG
fmat_index = ui.format_combobox.currentIndex()
formats = [DataFormat.LOG,
DataFormat.LIN,
DataFormat.LIN_PHASE,
DataFormat.PHASE,
DataFormat.GDELAY,
DataFormat.SMITH_LIN_PHASE,
DataFormat.SMITH_LOG_PHASE,
DataFormat.SMITH_RE_IM,
DataFormat.SMITH_R_JX,
DataFormat.SMITH_G_JB]
fmat = formats[fmat_index]
if ui.center_span_radio.isChecked():
groupbox = ui.bottom_layout.itemAt(3).widget()
center_freq = float(groupbox.findChild(QtGui.QLineEdit, "center_field").text())
span_freq = float(groupbox.findChild(QtGui.QLineEdit, "span_field").text())
channel.set_center_span(center_freq, span_freq)
channel.set_traces(1)
channel.set_points(points)
channel.set_sparam(1, spar)
channel.set_format(fmat) # set the selected format
channel.activate_channel()
channel.activate_trace(1)
channel.set_continuous(True)
elif ui.start_stop_radio.isChecked():
groupbox = ui.bottom_layout.itemAt(3).widget()
freq_start = float(groupbox.findChild(QtGui.QLineEdit, "freqstart_field").text())
freq_stop = float(groupbox.findChild(QtGui.QLineEdit, "freqstop_field").text())
channel.set_start_stop(freq_start, freq_stop)
channel.set_traces(1)
channel.set_points(points)
channel.set_sparam(1, spar)
channel.set_format(fmat) # set the selected format
channel.activate_channel()
channel.activate_trace(1)
channel.set_continuous(True)
if ui.autoscale_checkbox.isChecked():
channel.auto_scale() # Autoscale
f = str(ui.vna_file_field.text())
retrieve_data(ip, port, f, fmat, channel.executor)
for ch, sparam in zip([1,2,3,4], [SParameters.S11, SParameters.S12, SParameters.S21, SParameters.S22]):
channel.channel = ch
channel.set_sparam(1, sparam)
channel.channel = 1
channel.executor.close()
# Reenable buttons once measure has finished
ui.measure_vna.setEnabled(True)
ui.left_button.setEnabled(True)
ui.right_button.setEnabled(True)
def con_alt_measure(smu_params, vna_params, delay, conn_keithley, conn_vna):
points = smu_params["steps"]
sweep_time = delay*points
# Prepare K4200 to measure
params.append(smu_params)
params.append(vna_params)
ch = smu_params["index"] + 1
if smu_params["mode"] == "voltage":
source_mode = SourceMode.VOLTAGE
source_type = SourceType.VOLTAGE
if smu_params["mode"] == "current":
source_mode = SourceMode.CURRENT
source_type = SourceType.CURRENT
start = smu_params["start"]
stop = smu_params["stop"]
step = smu_params["step"]
compliance = smu_params["compliance"]
sweep_type = SweepType.LINEAR # Always linear.
smu = SMUSweep(ch, source_mode, source_type, start, stop, step,
compliance, sweep_type, 'V%s' % ch, "I%s"%ch)
device = K4200(conn_keithley[0], conn_keithley[1])
device.attach(smu)
device.configure()
device.executor.execute_command("SS DT {time}".format(time=delay))
# device.executor.execute_command("SS HT {time}".format(time=2.2))
# Prepare VNA to measure
vna = VnaChannel(conn_vna[0], conn_vna[1], 1)
vna.set_four_channels()
vna.set_bus_trigger()
def measure_vna(vna):
vlock.acquire()
vna.trigger()
vlock.release()
def measure_keithley(keithley):
klock.acquire()
keithley.measure()
klock.release()
for i in range(1,5): # Measure using four channels, once per S parameter
vna.channel = i
vna.set_continuous(False)
vna.set_immediate()
vna.activate_channel()
vna.set_traces(1)
vna.activate_trace(1)
vna.set_points(points)
vna.set_format(vna_params["format"])
vna.set_sparam(1, i) # Assign S11 to ch1, S12 to ch2, S21 to ch3 and S22 to ch4
vna.set_sweep_time(sweep_time)
if vna_params["type"] == "center_span":
vna.set_center_span(vna_params["freq_center"], vna_params["freq_span"])
elif vna_params["type"] == "start_stop":
vna.set_center_span(vna_params["freq_start"], vna_params["freq_stop"])
# Run in different threads to ensure start at the same time
start_new_thread(measure_vna, (vna,))
start_new_thread(measure_keithley, (device,))
start_new_thread(check_vna, (vna,vna_params))
start_new_thread(check_keithley, (device,smu_params))
