class ScopeInterface(QObject):
new_data = pyqtSignal(list)
def __init__(self, parent=None):
super(ScopeInterface, self).__init__(parent)
self.inprogress = False
def initialize(self):
self.sample_rate_index = 8
self.voltage_range = 0x01
self.data_points = 3 * 1024
self.trigger_level = 150
self.trigger_type = +1
self.scope = Oscilloscope()
self.scope.setup()
self.scope.open_handle()
if (not self.scope.is_device_firmware_present):
self.scope.flash_firmware()
self.scope.set_interface(1)
# choose ISO
self.scope.set_num_channels(1)
self.scope.set_sample_rate(self.sample_rate_index)
self.scope.set_ch1_voltage_range(self.voltage_range)
time.sleep(0.1)
return None
def capture(self):
if not self.inprogress:
self.inprogress = True
self.scope.start_capture()
shutdown_event = self.scope.read_async(self.data_callback,
self.data_points,
outstanding_transfers=25)
print("Clearing FIFO and starting data transfer...")
def data_callback(self, ch1_data, _):
d = list(ch1_data)
i = 0
#print("got new data ", time.time(), " : ", len(d))
if self.trigger_type > 0:
while (i < len(d) - 1) and not (d[i + 1] > self.trigger_level
and d[i] < self.trigger_level):
i += 1
#print("Trigger at ", i)
if (i != len(d) - 1):
self.new_data.emit(d[i:])
def stop(self):
self.scope.stop_capture()
print("Stopping new transfers.")
shutdown_event.set()
print("Snooze 1")
time.sleep(1)
print("Closing handle")
self.scope.close_handle()
print("Handle closed.")
self.inprogress = False
def test_set_sample_rate(self):
print "Testing setting the sample rate."
scope = Oscilloscope()
assert scope.setup()
assert scope.open_handle()
assert scope.flash_firmware()
for rate_index in scope.SAMPLE_RATES.keys():
scope.set_sample_rate(rate_index)
assert scope.close_handle()
class ScopeInterface(QObject):
new_data = pyqtSignal(list)
def __init__(self, parent=None):
super(ScopeInterface, self).__init__(parent)
self.inprogress = False
def initialize(self):
self.sample_rate_index = 8
self.voltage_range = 0x01
self.data_points = 3 * 1024
self.trigger_level = 150
self.trigger_type = +1
self.scope = Oscilloscope()
self.scope.setup()
self.scope.open_handle()
if (not self.scope.is_device_firmware_present):
self.scope.flash_firmware()
self.scope.set_interface(1); # choose ISO
self.scope.set_num_channels(1)
self.scope.set_sample_rate(self.sample_rate_index)
self.scope.set_ch1_voltage_range(self.voltage_range)
time.sleep(0.1)
return None
def capture(self):
if not self.inprogress:
self.inprogress = True
self.scope.start_capture()
shutdown_event = self.scope.read_async(self.data_callback, self.data_points, outstanding_transfers=25)
print("Clearing FIFO and starting data transfer...")
def data_callback(self, ch1_data, _):
d = list(ch1_data)
i = 0
#print("got new data ", time.time(), " : ", len(d))
if self.trigger_type > 0:
while (i < len(d) - 1) and not (d[i+1] > self.trigger_level and d[i] < self.trigger_level):
i += 1
#print("Trigger at ", i)
if (i != len(d) - 1):
self.new_data.emit(d[i:])
def stop(self):
self.scope.stop_capture()
print("Stopping new transfers.")
shutdown_event.set()
print("Snooze 1")
time.sleep(1)
print("Closing handle")
self.scope.close_handle()
print("Handle closed.")
self.inprogress = False
def test_set_one_channel_and_read(self):
print "Testing setting one channel and reading it."
scope = Oscilloscope()
assert scope.setup()
assert scope.open_handle()
assert scope.flash_firmware(mod_firmware_01)
assert scope.set_ch1_voltage_range(0xA)
assert scope.set_sample_rate(0x10)
assert scope.set_num_channels(1)
ch1_data, ch2_data = scope.read_data(0x4000)
assert ch1_data
assert not ch2_data
assert scope.close_handle()
def test_data_scaling(self):
print "Testing setting various scale facotrs and reading."
scale_factor = 0x01
scope = Oscilloscope()
assert scope.setup()
assert scope.open_handle()
assert scope.flash_firmware()
assert scope.set_ch1_voltage_range(scale_factor)
assert scope.set_sample_rate(27)
ch1_data, _ = scope.read_data(0x100000)
ch1_data = scope.scale_read_data(ch1_data, scale_factor)
print "Max:", max(ch1_data), "(V), Min:", min(ch1_data), "(V)"
assert ch1_data
assert scope.close_handle()
def setup_scope():
scope = Oscilloscope()
if not scope.setup():
raise AttributeError('Scope not available!')
scope.open_handle()
if (not scope.is_device_firmware_present):
logger.info('flash firmware')
scope.flash_firmware()
else:
scope.supports_single_channel = True
logger.info("Setting up scope!")
scope.set_interface(1) # choose ISO
logger.info('%s %s' % ("ISO" if scope.is_iso else "BULK",
"packet size: %d" % scope.packetsize))
scope.set_num_channels(numchannels)
scope.set_ch1_voltage_range(voltage_range)
scope.set_sample_rate(sample_rate_index)
time.sleep(1)
return scope
scope = Oscilloscope()
scope.setup()
scope.open_handle()
if (not scope.is_device_firmware_present):
scope.flash_firmware()
else:
scope.supports_single_channel = True
print("Setting up scope!")
scope.set_interface(alternative)
print("ISO" if scope.is_iso else "BULK", "packet size:", scope.packetsize)
scope.set_num_channels(numchannels)
# set voltage range
scope.set_ch1_voltage_range(voltagerange)
# set sample rate
scope.set_sample_rate(samplerate)
# we divide by 100 because otherwise audacity lets us not zoom into it
samplerate = samplerate * 1000 * 10
print("Reading data from scope! in ", )
for x in range(3):
print(
3 - x,
"..",
)
sys.stdout.flush()
time.sleep(1)
print("now")
data = []
data_extend = data.append
running = False
else:
continue
return stability[1:-1]
sample_rate_index = 24
voltage_range = 0x01
data_points = 3 * 1024
scope = Oscilloscope()
scope.setup()
scope.open_handle()
scope.flash_firmware()
scope.set_interface(1) # choose ISO
scope.set_num_channels(1)
scope.set_sample_rate(sample_rate_index)
scope.set_ch1_voltage_range(voltage_range)
time.sleep(1)
data = deque(maxlen=2*1024*1024)
data_extend = data.extend
def extend_callback(ch1_data, _):
global data_extend
data_extend(ch1_data)
start_time = time.time()
print("Clearing FIFO and starting data transfer...")
i = 0
scope.start_capture()
rates.append(rate)
print "Average: {} MB/s".format(sum(rates) / (len(rates) * 1e6))
return rates
voltage_range = 0x01
time_fxn = time.time
scope = Oscilloscope()
scope.setup()
scope.open_handle()
scope.set_ch1_voltage_range(voltage_range)
for sample_rate_index in [0x30, 0x10, 0x08, 0x04, 0x01, 0x32, 0x14, 0x0A]:
scope.set_sample_rate(sample_rate_index)
_, label = scope.convert_sampling_rate_to_measurement_times(
1, sample_rate_index)
print "Sample rate: {}".format(label)
print "-" * 40
for data_points in [
0x800, 0x1000, 0x8000, 0x10000, 0x80000, 0x100000, 0x200000
]:
reader_fxn = scope.build_data_reader(raw=True)
times = []
times_append = times.append
times_append(time_fxn())
for _ in xrange(iterations):
ch1_data, _ = reader_fxn(data_points)
times_append(time_fxn())
print "Raw Mode, Data Points: 0x{:x}".format(data_points)
scope.setup()
scope.open_handle()
scope.flash_firmware()
if (not scope.is_device_firmware_present):
scope.flash_firmware()
else:
scope.supports_single_channel = True;
print "Setting up scope!"
scope.set_interface(alternative);
print "ISO" if scope.is_iso else "BULK", "packet size:", scope.packetsize
print scope.set_num_channels(numchannels)
# set voltage range
scope.set_ch1_voltage_range(voltagerange)
# set sample rate
scope.set_sample_rate(samplerate)
# we divide by 100 because otherwise audacity lets us not zoom into it
samplerate = samplerate * 1000 * 10
print "Reading data from scope! in ",
for x in range(0, 3):
print 3-x,"..",
sys.stdout.flush()
time.sleep(1)
print "now"
data = []
data_extend = data.append
def extend_callback(ch1_data, _):
data_extend(ch1_data)
class Plugin(LoggerPlugin):
"""
Diese Gerät zeichnet die Daten eines Hantek6022 (und möglicherweise anderer) Oszilloskops auf.
"""
def __init__(self, *args, **kwargs):
# Plugin setup
super(Plugin, self).__init__(*args, **kwargs)
self.setDeviceName(DEVICENAME)
self.smallGUI = False
self._scope = None
self.setPerpetualTimer(self._updateT, samplerate=SAMPLERATE)
self._blocksize = 6 * 1024 # should be divisible by 6*1024
self._alternative = 1 # choose ISO 3072 bytes per 125 us
self._recordLength = 5000
self._blocksize = self._recordLength
self._yData1 = deque(maxlen=self._recordLength)
self._yData2 = deque(maxlen=self._recordLength)
self._yData1Triggered = deque(maxlen=self._recordLength)
self._yData2Triggered = deque(maxlen=self._recordLength)
self._singleTriggerFound = False
self.__capturer = Thread(target=self.__captureT)
self.__capturer.start()
# THIS IS YOUR THREAD
def _updateT(self):
if not self.widget.pauseButton.isChecked():
if self.widget.enableTriggerButton.isChecked():
yData1, yData2, stop = self.__trigger(list(self._yData1),
list(self._yData2))
else:
yData1 = self._yData1
yData2 = self._yData2
stop = False
samplerate = self._str2Samplerate(
self.widget.samplerateComboBox.currentText())
xData = [(i - len(yData1)) / samplerate
for i in range(len(yData1))]
if len(self._yData1) > 1:
self.plot(xData, yData1, dname='Hantek', sname='CH1', unit='V')
if self.widget.channel2CheckBox.isChecked():
self.plot(xData, yData2, dname='Hantek', sname='CH2', unit='V')
if stop:
self.widget.pauseButton.setChecked(True)
def __captureT(self):
#self.last_time = time.time()
shutdown_event = self._scope.read_async(self._extend_callback,
self._blocksize,
outstanding_transfers=10,
raw=True)
self._scope.start_capture()
while self.run:
self._scope.poll()
# logging.info("Stopping new transfers.")
# scope.stop_capture()
self._scope.stop_capture()
shutdown_event.set()
time.sleep(0.1)
self._scope.close_handle()
def loadGUI(self):
self.widget = QtWidgets.QWidget()
packagedir = self.getDir(__file__)
uic.loadUi(packagedir + "/Hantek6022/hantek.ui", self.widget)
# self.setCallbacks()
self.widget.reconnectButton.clicked.connect(
self.__openConnectionCallback)
self.widget.samplerateComboBox.currentTextChanged.connect(
self._updateScopeSettings)
self.widget.recordLengthSpinBox.valueChanged.connect(self.changeLength)
# self.widget.channel1CheckBox.valueChanged.connect(self.enableChannel1)
self.widget.channel1CheckBox.setEnabled(False)
self.widget.channel1ACDCComboBox.hide() # valueChanged.connect(self.)
self.widget.channel1VoltPDivComboBox.currentTextChanged.connect(
self._updateScopeSettings)
self.widget.channel2VoltPDivComboBox.currentTextChanged.connect(
self._updateScopeSettings)
self.widget.channel2CheckBox.stateChanged.connect(
self._updateScopeSettings)
self.widget.channel2ACDCComboBox.hide() # valueChanged.connect(self.)
# self.widget.pauseButton.clicked.connect(self.)
# self.widget.triggerChannelComboBox.textChanged.connect(self.)
# self.widget.triggerLevelSpinBox.valueChanged.connect(self.)
# self.widget.enableTriggerButton.clicked.connect(self.)
self._recordLength = self.widget.recordLengthSpinBox.value()
self.xData = deque(maxlen=self._recordLength)
self._yData1 = deque(maxlen=self._recordLength)
self._yData2 = deque(maxlen=self._recordLength)
self.__openConnectionCallback()
return self.widget
def __openConnectionCallback(self):
self.widget.reconnectButton.setEnabled(False)
if self.run:
self.cancel()
self.widget.reconnectButton.setText("Reconnect")
self.__base_address = ""
self.widget.reconnectButton.setEnabled(True)
else:
self._updateScopeSettings()
self.widget.reconnectButton.setText("Stop")
self.widget.reconnectButton.setEnabled(True)
def __trigger(self, data1, data2):
if not self._singleTriggerFound:
if self.widget.channel2CheckBox.isChecked(
) and self.widget.triggerChannelComboBox.currentText() == 'CH2':
triggerSignal = list(data2)
else:
triggerSignal = list(data1)
flanke = self.widget.comboBox.currentText()
triggerLevel = self.widget.triggerLevelSpinBox.value()
cutoff = 0
mean = self.widget.smoothSpinBox.value()
triggerPrepared = False
if flanke == 'Rising':
if max(triggerSignal) > triggerLevel:
for idx in range(len(triggerSignal)):
if triggerSignal[
idx] >= triggerLevel - mean and triggerSignal[
idx] <= triggerLevel:
triggerPrepared = True
elif triggerSignal[
idx] < triggerLevel - mean and triggerPrepared:
triggerPrepared = False
elif triggerSignal[
idx] > triggerLevel and triggerPrepared == True:
cutoff = idx
break
else:
if min(triggerSignal) < triggerLevel:
for idx in range(len(triggerSignal)):
if triggerSignal[
idx] <= triggerLevel + mean and triggerSignal[
idx] >= triggerLevel:
triggerPrepared = True
elif triggerSignal[
idx] > triggerLevel + mean and triggerPrepared:
triggerPrepared = False
elif triggerSignal[
idx] < triggerLevel and triggerPrepared == True:
cutoff = idx
break
stop = False
if len(data2) > cutoff:
data2 = list(data2)[cutoff:]
if len(data1) > cutoff:
data1 = list(data1)[cutoff:]
if cutoff != 0 and self.widget.checkBox.isChecked(
) and not self._singleTriggerFound:
self._singleTriggerFound = True
else:
self._singleTriggerFound = False
if self.widget.checkBox.isChecked():
self._yData1Triggered = deque(list(data1),
maxlen=self._recordLength)
self._yData2Triggered = deque(list(data2),
maxlen=self._recordLength)
else:
if len(self._yData1Triggered) < self._recordLength:
stop = False
else:
self._singleTriggerFound = False
stop = True
data1 = self._yData1Triggered
data2 = self._yData2Triggered
return data1, data2, stop
def _updateScopeSettings(self):
if self._scope:
self.cancel()
self._scope = Oscilloscope()
self._scope.setup()
self._scope.open_handle()
if (not self._scope.is_device_firmware_present):
self._scope.flash_firmware()
else:
self._scope.supports_single_channel = True
logging.info("Setting up scope!")
self._scope.set_interface(self._alternative)
logging.info("ISO" if self._scope.is_iso else "BULK", "packet size:",
self._scope.packetsize)
if self.widget.channel2CheckBox.isChecked():
self._scope.set_num_channels(2)
else:
self._scope.set_num_channels(1)
# set voltage range
voltagerange1 = self._strVoltageToID(
self.widget.channel1VoltPDivComboBox.currentText())
voltagerange2 = self._strVoltageToID(
self.widget.channel2VoltPDivComboBox.currentText())
self._scope.set_ch1_voltage_range(voltagerange1)
self._scope.set_ch2_voltage_range(voltagerange2)
self._scope.set_sample_rate(
self._str2SamplerateID(
self.widget.samplerateComboBox.currentText()))
self._blocksize = self._recordLength
self.start()
# self.widget.reconnectButton.setText("Stop")
# self.widget.reconnectButton.setEnabled(True)
def calibrate(self):
if self._scope:
self._scope.setup_dso_cal_level()
cal_level = self._scope.get_calibration_data()
self._scope.set_dso_calibration(cal_level)
def _str2SamplerateID(self, strung):
if 'MHz' in strung:
strung = strung.replace(' MHz', '')
return int(strung)
else:
strung = strung.replace(' kHz', '')
return int(int(strung) / 10)
def _str2Samplerate(self, strung):
if 'MHz' in strung:
strung = strung.replace(' MHz', '')
return int(strung) * 1000000
else:
strung = strung.replace(' kHz', '')
return int(strung) * 1000
# def __changeChannel1VoltPDiv(self, strung):
# if self._scope:
# voltagerange = self._strVoltageToID(strung)
# self._scope.set_ch1_voltage_range(voltagerange)
#
# def __changeChannel2VoltPDiv(self, strung):
# if self._scope:
# voltagerange = self._strVoltageToID(strung)
# self._scope.set_ch2_voltage_range(voltagerange)
def _enableChannel2(self, value):
if value:
self._scope.set_num_channels(2)
else:
self._scope.set_num_channels(1)
def _strVoltageToID(self, strung):
voltagerange = 1
if strung == '2.6 V':
voltagerange = 2
elif strung == '5 V':
voltagerange = 5
elif strung == '10 V':
voltagerange = 10
return voltagerange
def _extend_callback(self, ch1_data, ch2_data):
voltage_data = self._scope.scale_read_data(
ch1_data,
self._strVoltageToID(
self.widget.channel1VoltPDivComboBox.currentText()))
if len(voltage_data) > 1:
self._yData1.extend(voltage_data)
if len(self._yData1Triggered) < self._recordLength:
if len(self._yData1Triggered) + len(
voltage_data) < self._recordLength:
self._yData1Triggered.extend(voltage_data)
else:
self._yData1Triggered.extend(
voltage_data[0:self._recordLength -
len(self._yData1Triggered)])
if ch2_data != '':
voltage_data = self._scope.scale_read_data(
ch2_data,
self._strVoltageToID(
self.widget.channel1VoltPDivComboBox.currentText()))
self._yData2.extend(voltage_data)
if len(self._yData2Triggered) < self._recordLength:
if len(self._yData2Triggered) + len(
voltage_data) < self._recordLength:
self._yData2Triggered.extend(voltage_data)
else:
self._yData2Triggered.extend(
voltage_data[0:self._recordLength -
len(self._yData2Triggered)])
def changeLength(self, newlen: int = 10000):
self._recordLength = newlen
self._yData1 = deque(maxlen=self._recordLength)
self._yData2 = deque(maxlen=self._recordLength)
self._yData1Triggered = deque(maxlen=self._recordLength)
self._yData2Triggered = deque(maxlen=self._recordLength)
self._updateScopeSettings()
scope.flash_firmware()
# read calibration values from EEPROM
calibration = scope.get_calibration_values()
# set interface: 0 = BULK, >0 = ISO, 1=3072,2=2048,3=1024 bytes per 125 us
scope.set_interface(0) # use BULK unless you have specific need for ISO xfer
scope.set_num_channels(channels)
# calculate and set the sample rate ID from real sample rate value
if sample_rate < 1e6:
sample_id = int(100 + sample_rate / 10e3)
else:
sample_id = int(sample_rate / 1e6)
scope.set_sample_rate(sample_id)
# set the gain for CH1 and CH2
scope.set_ch1_voltage_range(ch1gain)
scope.set_ch2_voltage_range(ch2gain)
##########################################################
# this callback is called every time a data packet arrives
# scale the data packets and write them into the outfile
#
def pcb(ch1_data, ch2_data):
# define "static" variables
if 'av1' not in pcb.__dict__:
pcb.av1 = 0
if 'av2' not in pcb.__dict__: