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hp8903.py
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hp8903.py
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#!/usr/bin/python
from gi.repository import Gtk, GObject
from matplotlib.figure import Figure
from matplotlib.backends.backend_gtk3cairo import FigureCanvasGTK3Cairo as FigureCanvas
from matplotlib.backends.backend_gtk3 import NavigationToolbar2GTK3 as NavigationToolbar
from datetime import datetime
import serial
import serial.tools.list_ports as list_ports
import math
import numpy as np
import time
from datetime import datetime
UI_INFO = """
<ui>
<menubar name='MenuBar'>
<menu action='FileMenu'>
<menuitem action='FileSave' />
<separator />
<menuitem action='FileQuit' />
</menu>
</menubar>
</ui>
"""
HP8903_errors = {10: "Reading too large for display.",
11: "Calculated value out of range.",
13: "Notch cannot tune to input.",
14: "Input level exceeds instrument specifications.",
17: "Internal voltmeter cannot make measurement.",
18: "Source cannot tune as requested.",
19: "Cannot confirm source frequency.",
20: "Entered value out of range.",
21: "Invalid key sequence",
22: "Invalid Special Function prefix.",
23: "Invalid Special Function suffix.",
24: "Invalid HP-IB code.",
25: "Top and bottom plotter limits are identical.",
26: "RATIO not allowd in present mode.",
30: "Input overload detector tripped in range plot.",
31: "Cannot make measurement.",
32: "More than 255 points total in a sweep.",
96: "No signal sensed at input."}
HP8903_filters = ["30 kHz Low Pass",
"80 kHz Low Pass",
"Left Plug-in Filter",
"Right Plug-in Filter"]
class GPIBDevice():
def __init__(self, gpib_addr = None):
"""Initiazlize GPIB device class"""
self.dev = None
self.dev_name = None
self.ser = None
# GPIB address of HP 8903
self.gpib_addr = gpib_addr
def open(self, dev_name):
"""Open device"""
# Impossible to open generic device!
return(False)
def is_open(self):
"""Test to see if GPIB communication device is open"""
# Impossible to open generic device!
return(False)
def _set_dev_name(self, dev_name):
device_name = str(dev_name)
self.dev_name = device_name
def close(self):
"""Close device"""
pass
def write(self, data):
"""Write to GPIB endpoint"""
pass
# Blocking with timeout
def read(self, msg_len = 0, timeout = 500, end_char = '\n'):
"""Read data from GPIB device
If msg_len is 0, read until end_char with timeout.
If msg_len > 0 read until msg_len chars are received or until timeout."""
return('')
def flush_input(self):
"""Flush device input buffer"""
pass
def _command(self, cmd):
"""Write a command to the GPIB communication device"""
pass
def test(self):
"""Test GPIB communication device"""
return(True)
def status(self):
"""Get GPIB communication device status"""
pass
def name(self):
"""Name of GPIB communication device"""
return("Generic GPIB device""")
def implements_addr(self):
"""Does this implement GPIB address setting?"""
return(False)
class NI_GPIB_232CV_A(GPIBDevice):
def __init__(self, gpib_addr = None):
# Address on this device only set by dip switches (lame!)
self.dev_name = None
self.ser = None
# Fastest baud this device can do...
self.baud = 38400
self.buffer = ''
self.gpib_addr = gpib_addr
def open(self, dev_name):
self._set_dev_name(dev_name)
print("Connecting to: %s" % self.dev_name)
self.ser = serial.Serial(self.dev_name,
self.baud,
bytesize = serial.SEVENBITS,
stopbits = serial.STOPBITS_ONE,
parity = serial.PARITY_NONE,
timeout = 0)
if (self.is_open()):
self.ser.flushInput()
else:
return(False)
return(True)
def is_open(self):
if (self.ser):
if (self.ser.isOpen()):
return(True)
else:
return(False)
return(False)
def close(self):
if (self.is_open()):
self.ser.close()
return(True)
def write(self, data):
if (self.is_open()):
ret = self.ser.write(data)
else:
# Error!
print("%s failed write" % self.name())
return(0)
return(ret)
def read(self, msg_len = 0, timeout = 500, end_char = '\n'):
if (not self.is_open()):
return((False, None))
self.buffer = ''
start = datetime.now()
if (msg_len <= 0):
while(True):
# read... until newline
w = self.ser.inWaiting()
if (w > 0):
for i in range(w):
c = self.ser.read(1)
if (c == end_char):
# done!
self.buffer += c
temp_buf = self.buffer
self.buffer = ''
return((True, temp_buf))
else:
self.buffer += c
delta = datetime.now() - start
if ((delta.total_seconds()*1000.0) >= timeout):
return((False, None))
# Keep GUI active
while Gtk.events_pending():
Gtk.main_iteration_do(False)
else:
r = 0
while(True):
w = self.ser.inWaiting()
if (w > 0):
if (w >= msg_len):
self.buffer = self.ser.read(msg_len)
return((True, self.buffer))
else:
self.buffer += self.ser.read(w)
r += w
if (r >= msg_len):
# Received complete message
temp_buf = self.buffer[0:msg_len]
self.buffer = ''
return((True, temp_buf))
delta = datetime.now() - start
if ((delta.total_seconds()*1000.0) >= timeout):
return((False, None))
# Keep GUI active
while Gtk.events_pending():
Gtk.main_iteration_do(False)
def flush_input(self):
if (self.is_open()):
self.ser.flushInput()
return(True)
# Can't implement command...
def _command(self, cmd):
return(False)
def test(self):
# Not much to do on this device...
return(self.is_open())
def status(self):
if (self.is_open()):
return((True, "Serial device open"))
else:
return((False, "Serial device not open"))
def name(self):
return("National Instruments GPIB-232CV-A")
class Galvant_GPIB_USB(GPIBDevice):
def __init__(self, gpib_addr = 0):
self.gpib_addr = int(gpib_addr)
self.dev_name = None
self.ser = None
self.baud = 460800
def open(self, dev_name):
self._set_dev_name(dev_name)
print("Connecting to: %s" % self.dev_name)
self.ser = serial.Serial(self.dev_name,
self.baud,
bytesize = serial.EIGHTBITS,
stopbits = serial.STOPBITS_ONE,
parity = serial.PARITY_NONE)
if (self.is_open()):
self.ser.flushInput()
# Note \n's are added by write()
self._command("++auto 0")
time.sleep(0.02)
# The 8903 can be quite slow...
self._command("++read_tmo_ms 2500")
time.sleep(0.02)
# Set \r\n to be appended to output, read will look for this in data.
self._command("++eos 0")
time.sleep(0.02)
self._command("++ifc")
time.sleep(0.02)
# Set HP 8903 address address
addr_command = "++addr " + str(self.gpib_addr)
self._command(addr_command)
time.sleep(0.1)
# remote addressed mode
self._command("++llo")
print(addr_command)
else:
return(False)
return(True)
def is_open(self):
if (self.ser):
if (self.ser.isOpen()):
return(True)
else:
return(False)
return(False)
def close(self):
if (self.is_open()):
# clearage
self._command("++ifc")
# Return instrument to local control
self._command("++loc")
self.ser.close()
return(True)
def write(self, data):
# Galvant device requires a \n after any write to controller
data += "\n"
if (self.is_open()):
ret = self.ser.write(data)
else:
# Error!
print("%s failed write" % self.name())
return(0)
return(ret)
def read(self, msg_len = 0, timeout = 500, end_char = '\r'):
if (not self.is_open()):
return((False, None))
self.buffer = ''
# Command adapter to read until EOS is reached
self._command("++read\n")
start = datetime.now()
if (msg_len <= 0):
while(True):
# read... until newline
w = self.ser.inWaiting()
if (w > 0):
for i in range(w):
c = self.ser.read(1)
if (c == end_char):
# done!
self.buffer += c
temp_buf = self.buffer
self.buffer = ''
return((True, temp_buf))
else:
self.buffer += c
delta = datetime.now() - start
if ((delta.total_seconds()*1000.0) >= timeout):
return((False, None))
# Keep GUI active
while Gtk.events_pending():
Gtk.main_iteration_do(False)
else:
r = 0
while(True):
w = self.ser.inWaiting()
if (w > 0):
if (w >= msg_len):
self.buffer = self.ser.read(msg_len)
return((True, self.buffer))
else:
self.buffer += self.ser.read(w)
r += w
if (r >= msg_len):
# Received complete message
temp_buf = self.buffer[0:msg_len]
self.buffer = ''
return((True, temp_buf))
delta = datetime.now() - start
if ((delta.total_seconds()*1000.0) >= timeout):
return((False, None))
# Keep GUI active
while Gtk.events_pending():
Gtk.main_iteration_do(False)
def _command(self, cmd):
ret = self.write(cmd)
return(ret)
def test(self):
r = self._command("++ver")
if (r != 6):
return(False)
# if first 7 chars are "Version" pass!
status, msg = self.read(timeout = 1000, end_char = '\r')
print("%s Version: %s" % (self.name(), msg))
if (status):
if (len(msg) >= 7):
if (msg[0:7] == "Version"):
return(True)
return(False)
def status(self):
# Not implemented here for now...
return(True)
def name(self):
return("Galvant GPIB USB Adapter")
def implements_addr(self):
return(True)
# Add thisto HP8903BWindow
HP8903_GPIB_devices = [(Galvant_GPIB_USB, "Galvant GPIB USB Adapter"),
(NI_GPIB_232CV_A, "National Instruments GPIB-232CV-A")]
class HP8903BWindow(Gtk.Window):
def __init__(self):
Gtk.Window.__init__(self, title="HP 8903B Control")
# Serial connection!
self.ser = None
self.gpib_dev = None
self.devices = list_ports.comports()
# Menu Bar junk!
action_group = Gtk.ActionGroup("my_actions")
action_filemenu = Gtk.Action("FileMenu", "File", None, None)
action_group.add_action(action_filemenu)
self.action_filesave = Gtk.Action("FileSave", "Save Data", None, None)
action_filequit = Gtk.Action("FileQuit", None, None, Gtk.STOCK_QUIT)
action_filequit.connect("activate", self.on_menu_file_quit)
action_group.add_action(self.action_filesave)
action_group.add_action(action_filequit)
self.action_filesave.set_sensitive(False)
self.action_filesave.connect('activate', self.save_data)
uimanager = self.create_ui_manager()
uimanager.insert_action_group(action_group)
menubar = uimanager.get_widget("/MenuBar")
self.status_bar = Gtk.Statusbar()
self.status_bar.push(0, "HP 8903 Audio Analyzer Control")
self.master_vbox = Gtk.Box(False, spacing = 2, orientation = 'vertical')
self.master_vbox.pack_start(menubar, False, False, 0)
master_hsep = Gtk.HSeparator()
self.master_vbox.pack_start(master_hsep, False, False, 0)
self.add(self.master_vbox)
self.hbox = Gtk.Box(spacing = 2)
self.master_vbox.pack_start(self.hbox, True, True, 0)
self.master_vbox.pack_start(self.status_bar, False, False, 0)
# Begin controls
bframe = Gtk.Frame(label = "Control")
left_vbox = Gtk.Box(spacing = 2, orientation = 'vertical')
self.box = Gtk.Box(spacing = 2)
bframe.add(left_vbox)
# GPIB device selector
gpib_frame = Gtk.Frame(label = "GPIB Communication Device")
self.gpib_big_box = Gtk.Box(spacing = 2)
gpib_frame.add(self.gpib_big_box)
self.gpib_box = Gtk.Box(spacing = 2)
self.gpib_vbox = Gtk.Box(spacing = 2, orientation = 'vertical')
gpib_label = Gtk.Label("GPIB Device: ")
self.gpib_box.pack_start(gpib_label, False, False, 0)
gpib_store = Gtk.ListStore(int, str)
for n, g_dev in enumerate(HP8903_GPIB_devices):
gpib_store.append([n, g_dev[1]])
self.gpib_combo = Gtk.ComboBox.new_with_model_and_entry(gpib_store)
self.gpib_combo.set_entry_text_column(1)
self.gpib_combo.set_active(0)
self.gpib_box.pack_start(self.gpib_combo, False, False, 0)
gpib_addr_box = Gtk.Box(spacing = 2)
self.gpib_addr = Gtk.SpinButton()
self.gpib_addr.set_range(0, 30)
self.gpib_addr.set_digits(0)
self.gpib_addr.set_value(0)
self.gpib_addr.set_increments(1.0, 1.0)
gpib_addr_label = Gtk.Label("GPIB Address: ")
gpib_addr_box.pack_start(gpib_addr_label, False, False, 0)
gpib_addr_box.pack_start(self.gpib_addr, False, False, 0)
self.gpib_vbox.pack_start(self.gpib_box, False, False, 0)
self.gpib_vbox.pack_start(gpib_addr_box, False, False, 0)
self.gpib_big_box.pack_start(self.gpib_vbox, False, False, 0)
left_vbox.pack_start(gpib_frame, False, False, 0)
# Device items
left_vbox.pack_start(self.box, False, False, 0)
self.hbox.pack_start(bframe, False, False, 0)
con_hbox = Gtk.Box(spacing = 2)
self.con_button = Gtk.Button(label = "Connect")
self.dcon_button = Gtk.Button(label = "Disconnect")
self.con_button.connect("clicked", self.setup_gpib)
self.dcon_button.connect("clicked", self.close_gpib)
con_hbox.pack_start(self.con_button, False, False, 0)
con_hbox.pack_start(self.dcon_button, False, False, 0)
left_vbox.pack_start(con_hbox, False, False, 0)
device_store = Gtk.ListStore(int, str)
for i, dev in enumerate(self.devices):
device_store.append([i, dev[0]])
self.device_combo = Gtk.ComboBox.new_with_model_and_entry(device_store)
self.device_combo.set_entry_text_column(1)
self.device_combo.set_active(0)
device_label = Gtk.Label("Device: ")
self.box.pack_start(device_label, False, False, 0)
self.box.pack_start(self.device_combo, False, False, 0)
hsep0 = Gtk.HSeparator()
left_vbox.pack_start(hsep0, False, False, 2)
# Measurement Selection
mframe = Gtk.Frame(label = "Measurement Selection")
meas_box = Gtk.Box(spacing = 2)
meas_vbox = Gtk.Box(spacing = 2)
mframe.add(meas_box)
meas_box.pack_start(meas_vbox, False, False, 0)
meas_store = Gtk.ListStore(int, str)
meas_dict = {0: "THD+n",
1:"Frequency Response",
2: "THD+n (Ratio)",
3: "Frequency Response (Ratio)",
4: "Ouput Level"}
for k, v in meas_dict.iteritems():
meas_store.append([k, v])
self.meas_combo = Gtk.ComboBox.new_with_model_and_entry(meas_store)
self.meas_combo.set_entry_text_column(1)
self.meas_combo.set_active(0)
self.meas_combo.connect("changed", self.meas_changed)
meas_vbox.pack_start(self.meas_combo, False, False, 0)
left_vbox.pack_start(mframe, False, False, 0)
units_frame = Gtk.Frame(label = "Units")
units_box = Gtk.Box(spacing = 2)
units_vbox = Gtk.Box(spacing = 2)
units_frame.add(units_box)
units_box.pack_start(units_vbox, False, False, 0)
self.thd_units_store = Gtk.ListStore(int, str)
self.ampl_units_store = Gtk.ListStore(int, str)
self.thdr_units_store = Gtk.ListStore(int, str)
self.amplr_units_store = Gtk.ListStore(int, str)
self.optlvl_units_store = Gtk.ListStore(int, str)
thd_units_dict = {0: "%", 1: "dB"}
ampl_units_dict = {0: "V", 1: "dBm"}
thdr_units_dict = {0: "%", 1: "dB"}
amplr_units_dict = {0: "%", 1:"dB"}
optlvl_units_dict = {0: "V"}
for k, v in thd_units_dict.iteritems():
self.thd_units_store.append([k, v])
for k, v in ampl_units_dict.iteritems():
self.ampl_units_store.append([k, v])
for k, v in thdr_units_dict.iteritems():
self.thdr_units_store.append([k, v])
for k, v in amplr_units_dict.iteritems():
self.amplr_units_store.append([k, v])
for k, v in optlvl_units_dict.iteritems():
self.optlvl_units_store.append([k, v])
self.units_combo = Gtk.ComboBox.new_with_model_and_entry(self.thd_units_store)
self.units_combo.set_entry_text_column(1)
self.units_combo.set_active(0)
self.units_combo.connect("changed", self.units_changed)
units_vbox.pack_start(self.units_combo, False, False, 0)
left_vbox.pack_start(units_frame, False, False, 0)
# units_combo.set_model(ampl_units_store)
# units_combo.set_active(0)
#left_vbox.pack_start(units_combo, False, False, 0)
hsep1 = Gtk.HSeparator()
left_vbox.pack_start(hsep1, False, False, 2)
# Frequency Sweep Control
#side_filler = Gtk.Box(spacing = 2, orientation = 'vertical')
swconf = Gtk.Frame(label = "Frequency Sweep Control")
swhbox = Gtk.Box(spacing = 2)
swbox = Gtk.Box(spacing = 2, orientation = 'vertical')
swconf.add(swhbox)
swhbox.pack_start(swbox, False, False, 0)
left_vbox.pack_start(swconf, False, False, 0)
startf = Gtk.Frame(label = "Start Frequency (Hz)")
self.start_freq = Gtk.SpinButton()
self.start_freq.set_range(20.0, 100000.0)
self.start_freq.set_digits(5)
self.start_freq.set_value(20.0)
self.start_freq.set_increments(100.0, 1000.0)
startf.add(self.start_freq)
#left_vbox.pack_start(startf, False, False, 0)
swbox.pack_start(startf, False, False, 0)
self.start_freq.connect("value_changed", self.freq_callback)
stopf = Gtk.Frame(label = "Stop Frequency (Hz)")
self.stop_freq = Gtk.SpinButton()
self.stop_freq.set_range(20.0, 100000.0)
self.stop_freq.set_digits(5)
self.stop_freq.set_value(30000.0)
self.stop_freq.set_increments(100.0, 1000.0)
stopf.add(self.stop_freq)
#left_vbox.pack_start(stopf, False, False, 0)
swbox.pack_start(stopf, False, False, 0)
self.stop_freq.connect("value_changed", self.freq_callback)
stepsf = Gtk.Frame(label = "Steps per Decade")
self.steps = Gtk.SpinButton()
self.steps.set_range(1.0, 1000.0)
self.steps.set_digits(1)
self.steps.set_value(10.0)
self.steps.set_increments(1.0, 10.0)
stepsf.add(self.steps)
swbox.pack_start(stepsf, False, False, 0)
#left_vbox.pack_start(stepsf, False, False, 0)
hsep2 = Gtk.HSeparator()
left_vbox.pack_start(hsep2, False, False, 2)
# Freq Control
freqf = Gtk.Frame(label = "Frequency")
freqbox = Gtk.Box(spacing = 2)
freqhbox = Gtk.Box(spacing = 2, orientation = 'vertical')
freqf.add(freqhbox)
freqhbox.pack_start(freqbox, False, False, 0)
self.freq = Gtk.SpinButton()
self.freq.set_range(20.0, 100000.0)
self.freq.set_digits(5)
self.freq.set_value(1000.0)
self.freq.set_increments(100.0, 1000.0)
self.freq.set_sensitive(False)
freqbox.pack_start(self.freq, False, False, 0)
left_vbox.pack_start(freqf, False, False, 0)
freqhsep = Gtk.HSeparator()
left_vbox.pack_start(freqhsep, False, False, 2)
# Source Control
sourcef = Gtk.Frame(label = "Source Control (V RMS)")
source_box = Gtk.Box(spacing = 2)
sourcef.add(source_box)
self.source = Gtk.SpinButton()
self.source.set_range(0.0006, 6.0)
self.source.set_digits(4)
self.source.set_value(0.5)
self.source.set_increments(0.5, 1.0)
source_box.pack_start(self.source, False, False, 0)
left_vbox.pack_start(sourcef, False, False, 0)
hsep3 = Gtk.HSeparator()
left_vbox.pack_start(hsep3, False, False, 2)
vswconf = Gtk.Frame(label = "Voltage Sweep Control")
vswhbox = Gtk.Box(spacing = 2)
vswbox = Gtk.Box(spacing = 2, orientation = 'vertical')
vswconf.add(vswhbox)
vswhbox.pack_start(vswbox, False, False, 0)
left_vbox.pack_start(vswconf, False, False, 0)
startv = Gtk.Frame(label = "Start Voltage (V)")
self.start_v = Gtk.SpinButton()
self.start_v.set_range(0.0006, 6.0)
self.start_v.set_digits(5)
self.start_v.set_value(0.1)
self.start_v.set_increments(0.1, 1)
startv.add(self.start_v)
#left_vbox.pack_start(startf, False, False, 0)
vswbox.pack_start(startv, False, False, 0)
self.start_v.connect("value_changed", self.volt_callback)
stopv = Gtk.Frame(label = "Stop Voltage (V)")
self.stop_v = Gtk.SpinButton()
self.stop_v.set_range(0.0006, 6.0)
self.stop_v.set_digits(5)
self.stop_v.set_value(1.0)
self.stop_v.set_increments(0.1, 1.0)
stopv.add(self.stop_v)
#left_vbox.pack_start(stopf, False, False, 0)
vswbox.pack_start(stopv, False, False, 0)
self.stop_v.connect("value_changed", self.volt_callback)
stepsv = Gtk.Frame(label = "Total Samples")
self.stepsv = Gtk.SpinButton()
self.stepsv.set_range(1.0, 1000.0)
self.stepsv.set_digits(1)
self.stepsv.set_value(10.0)
self.stepsv.set_increments(1.0, 10.0)
stepsv.add(self.stepsv)
vswbox.pack_start(stepsv, False, False, 0)
#left_vbox.pack_start(stepsf, False, False, 0)
hsepsv = Gtk.HSeparator()
left_vbox.pack_start(hsepsv, False, False, 2)
filterf = Gtk.Frame(label = "Filters")
filterb = Gtk.Box(spacing = 2)
filtervb = Gtk.Box(spacing = 2, orientation = 'vertical')
filterf.add(filterb)
filterb.pack_start(filtervb, False, False, 0)
self.f30k = Gtk.CheckButton("30 kHz LP")
self.f80k = Gtk.CheckButton("80 kHz LP")
self.lpi = Gtk.CheckButton("Left Plug-in filter")
self.rpi = Gtk.CheckButton("Right Plug-in filter")
self.f30k.connect("toggled", self.filter1_callback)
self.f80k.connect("toggled", self.filter1_callback)
self.lpi.connect("toggled", self.filter2_callback)
self.rpi.connect("toggled", self.filter2_callback)
filtervb.pack_start(self.f30k, False, False, 0)
filtervb.pack_start(self.f80k, False, False, 0)
filtervb.pack_start(self.lpi, False, False, 0)
filtervb.pack_start(self.rpi, False, False, 0)
left_vbox.pack_start(filterf, False, False, 0)
hsep = Gtk.HSeparator()
left_vbox.pack_start(hsep, False, False, 2)
self.run_button = Gtk.Button(label = "Start Sequence")
self.run_button.set_sensitive(False)
left_vbox.pack_start(self.run_button, False, False, 0)
self.run_button.connect("clicked", self.run_test)
self.f = Figure(figsize=(5,4), dpi=100)
self.a = self.f.add_subplot(111)
#self.plt = self.a.plot(20,-90, marker = 'x')
self.plt = self.a.plot(marker = 'x')
self.a.grid(True)
self.a.set_xscale('log')
self.a.set_xlim((10.0, 30000.0))
self.a.set_ylim((0.0005, 0.01))
self.a.set_xlabel("Frequency (Hz)")
self.a.set_ylabel("THD+n (%)")
self.canvas = FigureCanvas(self.f)
toolbar = NavigationToolbar(self.canvas, self)
plot_vbox = Gtk.Box(spacing = 2, orientation = 'vertical')
plot_vbox.pack_start(self.canvas, True, True, 0)
plot_vbox.pack_start(toolbar, False, False, 0)
#self.hbox.pack_start(self.canvas, True, True, 0)
self.hbox.pack_start(plot_vbox, True, True, 0)
# Groups of widgets
self.measurement_widgets = [self.meas_combo, self.units_combo]
self.freq_sweep_widgets = [self.start_freq, self.stop_freq, self.steps]
self.source_widgets = [self.source]
self.filter_widgets = [self.f30k, self.f80k, self.lpi, self.rpi]
self.vsweep_widgets = [self.start_v, self.stop_v, self.stepsv]
for w in self.measurement_widgets:
w.set_sensitive(False)
for w in self.freq_sweep_widgets:
w.set_sensitive(False)
for w in self.source_widgets:
w.set_sensitive(False)
for w in self.filter_widgets:
w.set_sensitive(False)
for w in self.vsweep_widgets:
w.set_sensitive(False)
self.meas_string = "THD+n (%)"
self.units_string = "%"
self.measurements = None
def setup_gpib(self, button):
# Get GPIB info
gpib_model = self.gpib_combo.get_model()
gpib_tree_iter = self.gpib_combo.get_active_iter()
# Get address
gpib_addr = self.gpib_addr.get_value_as_int()
# Instantiate GPIB Device class
self.gpib_dev = HP8903_GPIB_devices[gpib_model[gpib_tree_iter][0]][0](gpib_addr = gpib_addr)
print("Using GPIB Device: %s" % self.gpib_dev.name())
print("Using GPIB Address: %s" % str(gpib_addr))
if (not self.gpib_dev.implements_addr()):
print("Warning: this GPIB communication device does not implement")
print(" address setting, check your hardware's settings!")
# Get device info
model = self.device_combo.get_model()
tree_iter = self.device_combo.get_active_iter()
print("Device: %s" % model[tree_iter][1])
dev_name = model[tree_iter][1]
# Disable gpib and devices buttons
self.con_button.set_sensitive(False)
self.device_combo.set_sensitive(False)
self.gpib_combo.set_sensitive(False)
self.gpib_addr.set_sensitive(False)
if(not self.gpib_dev.open(dev_name)):
# Make into warning window?
print("Failed to open GPIB Device: %s at %s" % (self.gpib_dev.name(), dev_name))
print("Verify hardware setup and try to connect again")
self.con_button.set_sensitive(True)
self.device_combo.set_sensitive(True)
self.gpib_combo.set_sensitive(True)
self.gpib_addr.set_sensitive(True)
return(False)
# Do test?
if (not self.gpib_dev.test()):
print("GPIB device failed self test: %s at %s" % (self.gpib_dev.name(), dev_name))
print("Verify hardware setup and try to connect again")
self.con_button.set_sensitive(True)
self.device_combo.set_sensitive(True)
self.gpib_combo.set_sensitive(True)
self.gpib_addr.set_sensitive(True)
return(False)
if (self.gpib_dev.is_open()):
self.gpib_dev.flush_input()
# Initialize the HP 8903
status = self.init_hp8903()
if (not status):
print("Failed to initialize HP 8903")
print("Verify hardware setup and try to connect again")
self.gpib_dev.close()
self.con_button.set_sensitive(True)
self.device_combo.set_sensitive(True)
self.gpib_combo.set_sensitive(True)
self.gpib_addr.set_sensitive(True)
return(False)
else:
print("Failed to use GPIB device")
print("Verify hardware setup and try to connect again")
self.gpib_dev.close()
self.con_button.set_sensitive(True)
self.device_combo.set_sensitive(True)
self.gpib_combo.set_sensitive(True)
self.gpib_addr.set_sensitive(True)
return(False)
# Enable measurement controls
self.run_button.set_sensitive(True)
for w in self.measurement_widgets:
w.set_sensitive(True)
for w in self.freq_sweep_widgets:
w.set_sensitive(True)
for w in self.source_widgets:
w.set_sensitive(True)
for w in self.filter_widgets:
w.set_sensitive(True)
for w in self.vsweep_widgets:
w.set_sensitive(False)
self.status_bar.push(0, "Connected to HP 8903, ready for measurements")
def close_gpib(self, button):
if (self.gpib_dev):
self.gpib_dev.close()
# Activate device/connection buttons
self.con_button.set_sensitive(True)
self.device_combo.set_sensitive(True)
self.gpib_combo.set_sensitive(True)
self.gpib_addr.set_sensitive(True)
# Disable measurement controls
for w in self.measurement_widgets:
w.set_sensitive(False)
for w in self.freq_sweep_widgets:
w.set_sensitive(False)
for w in self.source_widgets:
w.set_sensitive(False)
for w in self.filter_widgets:
w.set_sensitive(False)
for w in self.vsweep_widgets:
w.set_sensitive(False)
self.freq.set_sensitive(False)
self.run_button.set_sensitive(False)
def run_test(self, button):
# Disable all control widgets during sweep
self.run_button.set_sensitive(False)
self.action_filesave.set_sensitive(False)
for w in self.measurement_widgets:
w.set_sensitive(False)
for w in self.freq_sweep_widgets:
w.set_sensitive(False)
for w in self.source_widgets:
w.set_sensitive(False)
for w in self.filter_widgets:
w.set_sensitive(False)
for w in self.vsweep_widgets:
w.set_sensitive(False)
self.freq.set_sensitive(False)
self.x = []
self.y = []
# 30, 80, LPI, RPI
filters = [False, False, False, False]
filters[0] = self.f30k.get_active()
filters[1] = self.f80k.get_active()
filters[2] = self.lpi.get_active()