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DACCal.IQ: Handle Pyvisa errors #261

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DACCal.IQ: Handle Pyvisa errors #261

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11 changes: 10 additions & 1 deletion ghzdac/calibrate.py
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@

import time
import numpy as np
import pyvisa
import labrad
from labrad.types import Value
import keys
Expand Down Expand Up @@ -672,7 +673,15 @@ def sidebandScanCarrier(cxn, scanparams, boardname, corrector, use_switch=True):
datapoint = [freq]
for sidebandfreq in sidebandfreqs:
print ' sideband frequency: %g GHz' % sidebandfreq
comp = sideband(uwaveSource, spec, fpga, corrector, freq, sidebandfreq)
success = False
while not success:
try:
comp = sideband(uwaveSource, spec, fpga, corrector, freq, sidebandfreq)
success = True
except pyvisa.errors.VisaIOError as e:
print e
print 'PyVISA Error Handled. Trying again.'
pass
datapoint += [np.real(comp), np.imag(comp)]
ds.add(datapoint)
freq += scanparams['sidebandCarrierStep']
Expand Down