Programming Examples
38
Keysight P9241/42/43A Oscilloscopes SCPI Programmer's Guide
1283
y_reference = do_query_values(":WAVeform:YREFerence?")[0]
# Get the waveform data.
sData = do_query_string(":WAVeform:DATA?")
sData = get_definite_length_block_data(sData)
# Unpack unsigned byte data.
values = struct.unpack("%dB" % len(sData), sData)
print "Number of data values: %d" % len(values)
# Save waveform data values to CSV file.
f = open("waveform_data.csv", "w")
for i in xrange(0, len(values) - 1):
time_val = x_ (i * x_increment)
voltage = ((values[i] - y_reference) * y_increment) + y_origin
f.write("%E, %f\n" % (time_val, voltage))
f.close()
print "Waveform format BYTE data written to waveform_data.csv."
# =========================================================
# Send a command and check for errors:
# =========================================================
def do_command(command, hide_params=False):
if hide_params:
(header, data) = string.split(command, " ", 1)
if debug:
print "\nCmd = '%s'" % header
else:
if debug:
print "\nCmd = '%s'" % command
InfiniiVision.write("%s\n" % command)
if hide_params:
check_instrument_errors(header)
else:
check_instrument_errors(command)
# =========================================================
# Send a query, check for errors, return string:
# =========================================================
def do_query_string(query):
if debug:
print "Qys = '%s'" % query
result = InfiniiVision.ask("%s\n" % query)
check_instrument_errors(query)
return result
# =========================================================
# Send a query, check for errors, return values:
# =========================================================
Содержание P9241
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Страница 36: ...36 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 1 What s New...
Страница 41: ...Setting Up 2 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 41...
Страница 44: ...44 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 2 Setting Up...
Страница 222: ...222 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 7 Root Commands...
Страница 244: ...244 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 8 ACQuire Commands...
Страница 256: ...256 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 9 CALibrate Commands...
Страница 278: ...278 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 10 CHANnel n Commands...
Страница 328: ...328 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 15 EXTernal Trigger Commands...
Страница 386: ...386 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 17 FUNCtion m Commands...
Страница 390: ...390 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 18 HCOPY Commands...
Страница 416: ...416 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 20 MARKer Commands...
Страница 498: ...498 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 21 MEASure Commands...
Страница 532: ...532 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 22 MTESt Commands...
Страница 572: ...572 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 24 SAVE Commands...
Страница 596: ...596 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 25 SBUS n Commands SBUS n A429 SOURce on page 588...
Страница 900: ...900 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 28 TIMebase Commands...
Страница 1080: ...1080 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 31 WGEN w Commands...
Страница 1142: ...1142 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 34 Error Messages...
Страница 1204: ...1204 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 37 More About Oscilloscope Commands...
Страница 1344: ...1344 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide Index...