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wr-calibration
Commit 00cc6b08 authored by Peter Jansweijer's avatar Peter Jansweijer
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rewrite Keysight_53230A using fetch? instead of read?

parent a51a5596
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Showing with 34 additions and 8 deletions
sw/ab_cal_scripts/lib/Keysight_53230A.py
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......@@ -55,15 +55,34 @@ def get_time_interval(freq_cnt, num_meas=1):
file_header += "#measurements:\n"
meas_data = []
for measurement in range(num_meas):
measurement = freq_cnt.ask("READ?")
meas_data.append(measurement+"\n")
print(measurement)
freq_cnt.write("SAMPle:COUNt " + str(num_meas))
freq_cnt.write("INITiate:IMMediate")
print("Wait for measurments...")
"""
datapoints = 0
datapoints_1 = 0
while datapoints < num_meas:
datapoints = int(freq_cnt.ask("DATA:POINTs?"))
if datapoints_1 != datapoints:
print(datapoints)
datapoints_1 = datapoints
time.sleep(0.1)
"""
time.sleep(num_meas+10)
measurement= freq_cnt.ask("FETCh?")
meas_data = measurement.split(',')
#for measurement in range(num_meas):
# measurement = freq_cnt.ask("READ?")
# meas_data.append(measurement+"\n")
# print(measurement)
# Write out file_header, followed by all measured data
data = [file_header]
for i in range(len(meas_data)):
data.append(meas_data[i])
data.append(meas_data[i]+"\n")
filename="data/"+time.strftime(format("%y%m%d_%H_%M_%S"),timestamp)+"_freq_cnt_keysight_53230A"
print("save waveform into file:",filename)
......@@ -143,18 +162,24 @@ if __name__ == "__main__":
if len(sys.argv) >= 2: # just IP number
freq_cnt = vxi11.Instrument(sys.argv[1])
#freq_cnt = vxi11.Instrument("192.168.32.251")
# Put the device in a known state
freq_cnt.write("*RST")
freq_cnt.write("*CLS")
print(freq_cnt.ask("*IDN?"))
# Returns 'Agilent Technologies,53230A,MY50001484,02.05-1519.666-1.19-4.15-127-155-35'
if len(sys.argv) >= 3: # There are more arguments...
num_meas = int(sys.argv[2].split('=')[1])
print ("num_meas", num_meas)
# Put the device in a known state
freq_cnt.write("*RST")
# Setup Time Interval measurment from channel 1 -> 2
freq_cnt.write("CONFigure:TINTerval (@1),(@2)")
freq_cnt.write("SENSe:GATE:STARt:DELAy:SOURce IMMediate")
freq_cnt.write("SENSE:TINTerval:GATE:SOURce IMMediate")
freq_cnt.write("SENSE:TINTerval:GATE:POLarity POSitive")
# Use external 10MHz reference
freq_cnt.write("ROSCillator:SOURce EXTernal")
......@@ -185,6 +210,7 @@ if __name__ == "__main__":
freq_cnt.write("INP2:COUP DC")
freq_cnt.write("INP2:RANGE 5")
freq_cnt.write("INP2:SLOPE POS")
freq_cnt.write("INP2:LEVEL:AUTO OFF")
# A fixed trigger level is important for proper timing measurement
# MiniCircuits Splitters ZFRSC-123+ have ~ 6 + 3,75 dB attenuation (~ factor 3).
......
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