def performOpen(self, options={}):
"""Perform the operation of opening the instrument connection"""
# set time step and resolution
self.nBit = 16
self.bitRange = float(2**(self.nBit-1)-1)
# timeout
self.timeout_ms = int(1000 * self.dComCfg['Timeout'])
# create AWG instance
self.dig = signadyne.SD_AIN()
AWGPart = self.dig.getProductNameBySlot(1, int(self.comCfg.address))
if not isinstance(AWGPart, str):
raise InstrumentDriver.Error('Unit not available')
# check that model is supported
dOptionCfg = self.dInstrCfg['options']
for validId, validName in zip(dOptionCfg['model_id'], dOptionCfg['model_str']):
if AWGPart.find(validId)>=0:
# id found, stop searching
break
else:
# loop fell through, raise ID error
raise InstrumentDriver.IdError(AWGPart, dOptionCfg['model_id'])
# set model
self.setModel(validName)
# sampling rate and number of channles is set by model
if validName in ('M3102', 'M3302'):
# 500 MHz models
self.dt = 2E-9
self.nCh = 4
else:
# assume 100 MHz for all other models
self.dt = 10E-9
self.nCh = 4
# create list of sampled data
self.lTrace = [np.array([])] * self.nCh
self.dig.openWithSlot(AWGPart, 1, int(self.comCfg.address))
def performOpen(self, options={}):
"""Perform the operation of opening the instrument connection"""
self.freqClock = 100e6
self.hviCtrl = sd.SD_Module()
self.hviSetup = sd.SD_HVI()
self.dig = sd.SD_AIN()
return