def __init__(self, dut):
super(MainPanel, self).__init__()
self.dut = dut
self.mhz_bottom, self.mhz_top = (f / 10**6
for f in dut.SWEEP_FREQ_RANGE)
self.center_freq = None
self.decimation_factor = None
self.decimation_points = None
self._vrt_context = {}
self.screen = SpectrumView()
self.initDUT()
self.initUI()
def __init__(self, dut):
super(MainPanel, self).__init__()
self.dut = dut
self.mhz_bottom, self.mhz_top = (f/10**6 for f in dut.SWEEP_FREQ_RANGE)
self.center_freq = None
self.decimation_factor = None
self.decimation_points = None
self._vrt_context = {}
self.screen = SpectrumView()
self.initDUT()
self.initUI()
class MainPanel(QtGui.QWidget):
"""
The spectrum view and controls
"""
def __init__(self, dut):
super(MainPanel, self).__init__()
self.dut = dut
self.mhz_bottom, self.mhz_top = (f / 10**6
for f in dut.SWEEP_FREQ_RANGE)
self.center_freq = None
self.decimation_factor = None
self.decimation_points = None
self._vrt_context = {}
self.screen = SpectrumView()
self.initDUT()
self.initUI()
@inlineCallbacks
def initDUT(self):
yield self.dut.request_read_perm()
self.center_freq = yield self.dut.freq()
self.decimation_factor = yield self.dut.decimation()
yield self.dut.flush()
yield self.dut.request_read_perm()
self.dut.connector.vrt_callback = self.receive_vrt
yield self.dut.capture(self.points, 1)
def receive_vrt(self, packet):
if packet.is_data_packet():
if any(x not in self._vrt_context for x in ('reflevel', 'rffreq')):
return
# queue up the next capture while we update
self.dut.capture(self.points, 1)
self.screen.update_data(
compute_fft(self.dut, packet, self._vrt_context),
self.center_freq, self.decimation_factor)
else:
self._vrt_context.update(packet.fields)
def initUI(self):
grid = QtGui.QGridLayout()
grid.setSpacing(10)
grid.addWidget(self.screen, 0, 0, 8, 1)
grid.setColumnMinimumWidth(0, 400)
y = 0
grid.addWidget(self._antenna_control(), y, 1, 1, 2)
grid.addWidget(self._bpf_control(), y, 3, 1, 2)
y += 1
grid.addWidget(self._gain_control(), y, 1, 1, 2)
grid.addWidget(QtGui.QLabel('IF Gain:'), y, 3, 1, 1)
grid.addWidget(self._ifgain_control(), y, 4, 1, 1)
y += 1
freq, steps, freq_plus, freq_minus = self._freq_controls()
grid.addWidget(QtGui.QLabel('Center Freq:'), y, 1, 1, 1)
grid.addWidget(freq, y, 2, 1, 2)
grid.addWidget(QtGui.QLabel('MHz'), y, 4, 1, 1)
y += 1
grid.addWidget(steps, y, 2, 1, 2)
grid.addWidget(freq_minus, y, 1, 1, 1)
grid.addWidget(freq_plus, y, 4, 1, 1)
y += 1
span, rbw = self._span_rbw_controls()
grid.addWidget(span, y, 1, 1, 2)
grid.addWidget(rbw, y, 3, 1, 2)
self.setLayout(grid)
self.show()
@inlineCallbacks
def _read_update_antenna_box(self):
ant = yield self.dut.antenna()
self._antenna_box.setCurrentIndex(ant - 1)
def _antenna_control(self):
antenna = QtGui.QComboBox(self)
antenna.addItem("Antenna 1")
antenna.addItem("Antenna 2")
self._antenna_box = antenna
self._read_update_antenna_box()
def new_antenna():
with self.paused_stream() as dut:
dut.antenna(int(antenna.currentText().split()[-1]))
antenna.currentIndexChanged.connect(new_antenna)
return antenna
@inlineCallbacks
def _read_update_bpf_box(self):
bpf = yield self.dut.preselect_filter()
self._bpf_box.setCurrentIndex(0 if bpf else 1)
def _bpf_control(self):
bpf = QtGui.QComboBox(self)
bpf.addItem("BPF On")
bpf.addItem("BPF Off")
self._bpf_box = bpf
self._read_update_bpf_box()
def new_bpf():
with self.paused_stream() as dut:
dut.preselect_filter("On" in bpf.currentText())
bpf.currentIndexChanged.connect(new_bpf)
return bpf
@inlineCallbacks
def _read_update_gain_box(self):
gain = yield self.dut.gain()
self._gain_box.setCurrentIndex(self._gain_values.index(gain))
def _gain_control(self):
gain = QtGui.QComboBox(self)
gain_values = ['High', 'Med', 'Low', 'VLow']
for g in gain_values:
gain.addItem("RF Gain: %s" % g)
self._gain_values = [g.lower() for g in gain_values]
self._gain_box = gain
self._read_update_gain_box()
def new_gain():
g = gain.currentText().split()[-1].lower().encode('ascii')
with self.paused_stream() as dut:
dut.gain(g)
gain.currentIndexChanged.connect(new_gain)
return gain
@inlineCallbacks
def _read_update_ifgain_box(self):
ifgain = yield self.dut.ifgain()
self._ifgain_box.setValue(int(ifgain))
def _ifgain_control(self):
ifgain = QtGui.QSpinBox(self)
ifgain.setRange(-10, 34)
ifgain.setSuffix(" dB")
self._ifgain_box = ifgain
self._read_update_ifgain_box()
def new_ifgain():
with self.paused_stream() as dut:
dut.ifgain(ifgain.value())
ifgain.valueChanged.connect(new_ifgain)
return ifgain
@inlineCallbacks
def _read_update_freq_edit(self):
"Get current frequency from self.dut and update the edit box"
self._update_freq_edit() # once immediately in case of long delay
self.center_freq = yield self.dut.freq()
self._update_freq_edit()
def _update_freq_edit(self):
"Update the frequency edit box from self.center_freq"
if self.center_freq is None:
self._freq_edit.setText("---")
else:
self._freq_edit.setText("%0.1f" % (self.center_freq / 1e6))
def _freq_controls(self):
freq = QtGui.QLineEdit("")
self._freq_edit = freq
self._read_update_freq_edit()
def write_freq():
try:
f = float(freq.text())
except ValueError:
return
if f < self.mhz_bottom:
f = self.mhz_bottom
self.set_freq_mhz(f)
self._update_freq_edit()
elif self.mhz_top < f:
f = self.mhz_top
self.set_freq_mhz(f)
self._update_freq_edit()
else:
self.set_freq_mhz(f)
freq.editingFinished.connect(write_freq)
steps = QtGui.QComboBox(self)
steps.addItem("Adjust: 1 MHz")
steps.addItem("Adjust: 2.5 MHz")
steps.addItem("Adjust: 10 MHz")
steps.addItem("Adjust: 25 MHz")
steps.addItem("Adjust: 100 MHz")
steps.setCurrentIndex(2)
def freq_step(factor):
try:
f = float(freq.text())
except ValueError:
self._update_freq_edit()
return
delta = float(steps.currentText().split()[1]) * factor
freq.setText("%0.1f" % (f + delta))
write_freq()
freq_minus = QtGui.QPushButton('-')
freq_minus.clicked.connect(lambda: freq_step(-1))
freq_plus = QtGui.QPushButton('+')
freq_plus.clicked.connect(lambda: freq_step(1))
return freq, steps, freq_plus, freq_minus
@inlineCallbacks
def _read_update_span_rbw_boxes(self):
self.decimation_factor = yield self.dut.decimation()
self._span_box.setCurrentIndex(
self._decimation_values.index(self.decimation_factor))
self._update_rbw_box()
def _update_rbw_box(self):
d = self.decimation_factor
for i, p in enumerate(self._points_values):
r = DEVICE_FULL_SPAN / d / p
self._rbw_box.setItemText(i, "RBW: %s" % frequency_text(r))
if self.decimation_points and self.decimation_points == d * p:
self._rbw_box.setCurrentIndex(i)
self.points = self._points_values[self._rbw_box.currentIndex()]
def _span_rbw_controls(self):
span = QtGui.QComboBox(self)
decimation_values = [1] + [2**x for x in range(2, 10)]
for d in decimation_values:
span.addItem("Span: %s" % frequency_text(DEVICE_FULL_SPAN / d))
self._decimation_values = decimation_values
self._span_box = span
def new_span():
self.set_decimation(decimation_values[span.currentIndex()])
self._update_rbw_box()
span.currentIndexChanged.connect(new_span)
rbw = QtGui.QComboBox(self)
self._points_values = [2**x for x in range(8, 16)]
self._rbw_box = rbw
rbw.addItems([str(p) for p in self._points_values])
self._read_update_span_rbw_boxes()
def new_rbw():
self.points = self._points_values[rbw.currentIndex()]
self.decimation_points = self.decimation_factor * self.points
with self.paused_stream() as dut:
dut.spp(self.points)
rbw.setCurrentIndex(self._points_values.index(1024))
rbw.currentIndexChanged.connect(new_rbw)
return span, rbw
def set_freq_mhz(self, f):
self.center_freq = f * 1e6
with self.paused_stream() as dut:
dut.freq(self.center_freq)
def set_decimation(self, d):
self.decimation_factor = 1 if d == 0 else d
with self.paused_stream() as dut:
dut.decimation(d)
@contextmanager
def paused_stream(self):
yield self.dut
class MainPanel(QtGui.QWidget):
"""
The spectrum view and controls
"""
def __init__(self, dut):
super(MainPanel, self).__init__()
self.dut = dut
self.mhz_bottom, self.mhz_top = (f/10**6 for f in dut.SWEEP_FREQ_RANGE)
self.center_freq = None
self.decimation_factor = None
self.decimation_points = None
self._vrt_context = {}
self.screen = SpectrumView()
self.initDUT()
self.initUI()
@inlineCallbacks
def initDUT(self):
yield self.dut.request_read_perm()
self.center_freq = yield self.dut.freq()
self.decimation_factor = yield self.dut.decimation()
yield self.dut.flush()
yield self.dut.request_read_perm()
self.dut.connector.vrt_callback = self.receive_vrt
yield self.dut.capture(self.points, 1)
def receive_vrt(self, packet):
if packet.is_data_packet():
if any(x not in self._vrt_context for x in (
'reflevel', 'rffreq')):
return
# queue up the next capture while we update
self.dut.capture(self.points, 1)
self.screen.update_data(
compute_fft(self.dut, packet, self._vrt_context),
self.center_freq,
self.decimation_factor)
else:
self._vrt_context.update(packet.fields)
def initUI(self):
grid = QtGui.QGridLayout()
grid.setSpacing(10)
grid.addWidget(self.screen, 0, 0, 8, 1)
grid.setColumnMinimumWidth(0, 400)
y = 0
grid.addWidget(self._antenna_control(), y, 1, 1, 2)
grid.addWidget(self._bpf_control(), y, 3, 1, 2)
y += 1
grid.addWidget(self._gain_control(), y, 1, 1, 2)
grid.addWidget(QtGui.QLabel('IF Gain:'), y, 3, 1, 1)
grid.addWidget(self._ifgain_control(), y, 4, 1, 1)
y += 1
freq, steps, freq_plus, freq_minus = self._freq_controls()
grid.addWidget(QtGui.QLabel('Center Freq:'), y, 1, 1, 1)
grid.addWidget(freq, y, 2, 1, 2)
grid.addWidget(QtGui.QLabel('MHz'), y, 4, 1, 1)
y += 1
grid.addWidget(steps, y, 2, 1, 2)
grid.addWidget(freq_minus, y, 1, 1, 1)
grid.addWidget(freq_plus, y, 4, 1, 1)
y += 1
span, rbw = self._span_rbw_controls()
grid.addWidget(span, y, 1, 1, 2)
grid.addWidget(rbw, y, 3, 1, 2)
self.setLayout(grid)
self.show()
@inlineCallbacks
def _read_update_antenna_box(self):
ant = yield self.dut.antenna()
self._antenna_box.setCurrentIndex(ant - 1)
def _antenna_control(self):
antenna = QtGui.QComboBox(self)
antenna.addItem("Antenna 1")
antenna.addItem("Antenna 2")
self._antenna_box = antenna
self._read_update_antenna_box()
def new_antenna():
with self.paused_stream() as dut:
dut.antenna(int(antenna.currentText().split()[-1]))
antenna.currentIndexChanged.connect(new_antenna)
return antenna
@inlineCallbacks
def _read_update_bpf_box(self):
bpf = yield self.dut.preselect_filter()
self._bpf_box.setCurrentIndex(0 if bpf else 1)
def _bpf_control(self):
bpf = QtGui.QComboBox(self)
bpf.addItem("BPF On")
bpf.addItem("BPF Off")
self._bpf_box = bpf
self._read_update_bpf_box()
def new_bpf():
with self.paused_stream() as dut:
dut.preselect_filter("On" in bpf.currentText())
bpf.currentIndexChanged.connect(new_bpf)
return bpf
@inlineCallbacks
def _read_update_gain_box(self):
gain = yield self.dut.gain()
self._gain_box.setCurrentIndex(self._gain_values.index(gain))
def _gain_control(self):
gain = QtGui.QComboBox(self)
gain_values = ['High', 'Med', 'Low', 'VLow']
for g in gain_values:
gain.addItem("RF Gain: %s" % g)
self._gain_values = [g.lower() for g in gain_values]
self._gain_box = gain
self._read_update_gain_box()
def new_gain():
g = gain.currentText().split()[-1].lower().encode('ascii')
with self.paused_stream() as dut:
dut.gain(g)
gain.currentIndexChanged.connect(new_gain)
return gain
@inlineCallbacks
def _read_update_ifgain_box(self):
ifgain = yield self.dut.ifgain()
self._ifgain_box.setValue(int(ifgain))
def _ifgain_control(self):
ifgain = QtGui.QSpinBox(self)
ifgain.setRange(-10, 34)
ifgain.setSuffix(" dB")
self._ifgain_box = ifgain
self._read_update_ifgain_box()
def new_ifgain():
with self.paused_stream() as dut:
dut.ifgain(ifgain.value())
ifgain.valueChanged.connect(new_ifgain)
return ifgain
@inlineCallbacks
def _read_update_freq_edit(self):
"Get current frequency from self.dut and update the edit box"
self._update_freq_edit() # once immediately in case of long delay
self.center_freq = yield self.dut.freq()
self._update_freq_edit()
def _update_freq_edit(self):
"Update the frequency edit box from self.center_freq"
if self.center_freq is None:
self._freq_edit.setText("---")
else:
self._freq_edit.setText("%0.1f" % (self.center_freq / 1e6))
def _freq_controls(self):
freq = QtGui.QLineEdit("")
self._freq_edit = freq
self._read_update_freq_edit()
def write_freq():
try:
f = float(freq.text())
except ValueError:
return
if f < self.mhz_bottom:
f = self.mhz_bottom
self.set_freq_mhz(f)
self._update_freq_edit()
elif self.mhz_top < f:
f = self.mhz_top
self.set_freq_mhz(f)
self._update_freq_edit()
else:
self.set_freq_mhz(f)
freq.editingFinished.connect(write_freq)
steps = QtGui.QComboBox(self)
steps.addItem("Adjust: 1 MHz")
steps.addItem("Adjust: 2.5 MHz")
steps.addItem("Adjust: 10 MHz")
steps.addItem("Adjust: 25 MHz")
steps.addItem("Adjust: 100 MHz")
steps.setCurrentIndex(2)
def freq_step(factor):
try:
f = float(freq.text())
except ValueError:
self._update_freq_edit()
return
delta = float(steps.currentText().split()[1]) * factor
freq.setText("%0.1f" % (f + delta))
write_freq()
freq_minus = QtGui.QPushButton('-')
freq_minus.clicked.connect(lambda: freq_step(-1))
freq_plus = QtGui.QPushButton('+')
freq_plus.clicked.connect(lambda: freq_step(1))
return freq, steps, freq_plus, freq_minus
@inlineCallbacks
def _read_update_span_rbw_boxes(self):
self.decimation_factor = yield self.dut.decimation()
self._span_box.setCurrentIndex(
self._decimation_values.index(self.decimation_factor))
self._update_rbw_box()
def _update_rbw_box(self):
d = self.decimation_factor
for i, p in enumerate(self._points_values):
r = DEVICE_FULL_SPAN / d / p
self._rbw_box.setItemText(i, "RBW: %s" % frequency_text(r))
if self.decimation_points and self.decimation_points == d * p:
self._rbw_box.setCurrentIndex(i)
self.points = self._points_values[self._rbw_box.currentIndex()]
def _span_rbw_controls(self):
span = QtGui.QComboBox(self)
decimation_values = [1] + [2 ** x for x in range(2, 10)]
for d in decimation_values:
span.addItem("Span: %s" % frequency_text(DEVICE_FULL_SPAN / d))
self._decimation_values = decimation_values
self._span_box = span
def new_span():
self.set_decimation(decimation_values[span.currentIndex()])
self._update_rbw_box()
span.currentIndexChanged.connect(new_span)
rbw = QtGui.QComboBox(self)
self._points_values = [2 ** x for x in range(8, 16)]
self._rbw_box = rbw
rbw.addItems([str(p) for p in self._points_values])
self._read_update_span_rbw_boxes()
def new_rbw():
self.points = self._points_values[rbw.currentIndex()]
self.decimation_points = self.decimation_factor * self.points
with self.paused_stream() as dut:
dut.spp(self.points)
rbw.setCurrentIndex(self._points_values.index(1024))
rbw.currentIndexChanged.connect(new_rbw)
return span, rbw
def set_freq_mhz(self, f):
self.center_freq = f * 1e6
with self.paused_stream() as dut:
dut.freq(self.center_freq)
def set_decimation(self, d):
self.decimation_factor = 1 if d == 0 else d
with self.paused_stream() as dut:
dut.decimation(d)
@contextmanager
def paused_stream(self):
yield self.dut