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  1. I'm currently trying to synchronize analog pulses on both AWGs with digital pulses, and simultaneously run both analog scopes and the digital scope. I am trying to trigger all outputs and all scope acquisitions to happen simultaneously with a single PC-Trigger source using the SDK. First question: Why isn't there an AnalogInTriggerSlopeSet function? (You can set the TriggerSlope to rising edge for AnalogOut, DigitalOut, and DigitalIn). Without an AnalogInTriggerSlopeSet function, how do you set the AnalogInTrigger to respond to the same signal as the other three? Second Question: What prompts the change in Analog/DigitalInStatus from 'prefill' to 'armed' or 'done'? In the Acquisition code in the SDK, it looks like the status changes when the buffer fills? In my code below, why isn't it progressing to 2=Done to break out of the loop? It looks like it is getting stuck waiting for the trigger (which already happened). #digital pulse control setup self.dwf.FDwfDigitalOutEnableSet(hdwf, c_int(0), c_int(1)) # enable dIO pin 0 self.dwf.FDwfDigitalOutDividerSet(hdwf, c_int(0), c_int(int(hzSys.value/(100*self.qRate)))) # divider=internal clock/ (100counts*frequency) self.dwf.FDwfDigitalOutCounterSet(hdwf, c_int(0), c_int(100-self.qDuty), c_int(self.qDuty)) # set counts low, counts high from duty cycle print "configured digital output" # analog pulse control setup self.dwf.FDwfAnalogOutNodeEnableSet(hdwf, c_int(0), AnalogOutNodeCarrier, c_int(True)) self.dwf.FDwfAnalogOutNodeEnableSet(hdwf, c_int(1), AnalogOutNodeCarrier, c_int(True)) # for second channel set master the first channel, slave channel is controlled by the master self.dwf.FDwfAnalogOutMasterSet(hdwf, c_int(1), c_int(0)); self.dwf.FDwfAnalogOutNodeFunctionSet(hdwf, c_int(-1), AnalogOutNodeCarrier, funcSquare) self.dwf.FDwfAnalogOutNodeFrequencySet(hdwf, c_int(-1), AnalogOutNodeCarrier, c_double(self.xRate)) self.dwf.FDwfAnalogOutNodeAmplitudeSet(hdwf, c_int(-1), AnalogOutNodeCarrier, c_double(0.5)) self.dwf.FDwfAnalogOutOffsetSet(hdwf, c_int(-1), c_double(0.5)) self.dwf.FDwfAnalogOutNodeSymmetrySet(hdwf, c_int(-1), AnalogOutNodeCarrier, c_double(symm)) #pulse width self.dwf.FDwfAnalogOutNodePhaseSet(hdwf, c_int(1), AnalogOutNodeCarrier, c_double(self.x2Phase)) #phase shift for second channel self.dwf.FDwfAnalogOutRunSet(hdwf, c_int(-1), c_double(self.xDuration)) #set run duration on all channels self.dwf.FDwfAnalogOutIdleSet(hdwf,c_int(-1), c_int(0)) print "configured analog output" #configure digital input scope self.dwf.FDwfDigitalInDividerSet(hdwf, c_int(int(hzSys.value/(100*self.xRate)))) #same sample rate as xray self.dwf.FDwfDigitalInSampleFormatSet(hdwf, c_int(16)) # 16bit per sample format cSamples = 1000 # set number of sample to acquire rgwSamples = (c_uint16*cSamples)() self.dwf.FDwfDigitalInBufferSizeSet(hdwf, c_int(cSamples)) print "configured digital input" #configure analog input scope self.dwf.FDwfAnalogInFrequencySet(hdwf, c_double(int(hzSys.value/(100*self.xRate)))) self.dwf.FDwfAnalogInBufferSizeSet(hdwf, c_int(1000)) self.dwf.FDwfAnalogInChannelEnableSet(hdwf, c_int(0), c_bool(True)) self.dwf.FDwfAnalogInChannelRangeSet(hdwf, c_int(0), c_double(5)) self.dwf.FDwfAnalogInChannelEnableSet(hdwf, c_int(1), c_bool(True)) self.dwf.FDwfAnalogInChannelRangeSet(hdwf, c_int(1), c_double(5)) rg1 = (c_double*1000)() #rg = pointer to allocated buffer to copy the acquisition data rg2 = (c_double*1000)() #rg = pointer to allocated buffer to copy the acquisition data print "configured analog input" #set up PC trigger to start pulse output AND acquisition self.dwf.FDwfAnalogOutTriggerSourceSet(hdwf, c_int(0), trigsrcPC) self.dwf.FDwfDigitalOutTriggerSourceSet(hdwf, trigsrcPC) self.dwf.FDwfAnalogOutTriggerSlopeSet(hdwf, c_int(0), c_int(0)) # set channel 1 to trigger on rising edge self.dwf.FDwfDigitalOutTriggerSlopeSet(hdwf, c_int(0)) self.dwf.FDwfDigitalInTriggerSourceSet(hdwf, trigsrcPC) self.dwf.FDwfDigitalInTriggerSlopeSet(hdwf, c_int(0)) #rising edge self.dwf.FDwfAnalogInTriggerSourceSet(hdwf, trigsrcPC) # self.dwf.FDwfAnalogInTriggerSlopeSet(hdwf,) #this command doesn't exist for analogin! print "set up triggers" #configure everything to wait for trigger self.dwf.FDwfAnalogOutConfigure(hdwf, c_int(0), c_bool(True)) # start master, slave will follow self.dwf.FDwfDigitalOutConfigure(hdwf, c_int(1)) self.dwf.FDwfDigitalInConfigure(hdwf, c_bool(0), c_bool(1)) self.dwf.FDwfAnalogInConfigure(hdwf, c_int(1), c_int(1)) # starts both analog in pins (hdwf, bool-reconfigure, bool-start) print "initialized pins" #send the trigger self.dwf.FDwfDeviceTriggerPC(hdwf) print "PC trigger pulse sent" #plot the things sts = c_int() while True: #data acquisition status should == 5 - filling buffer self.dwf.FDwfDigitalInStatus(hdwf, c_int(1), byref(sts)) sts1 = sts.value self.dwf.FDwfAnalogInStatus(hdwf, c_int(1), byref(sts)) print ("analog status = " + str(sts.value)) print ("digital status = " +str(sts1)) if sts.value == DwfStateDone.value : #status ==2 = done print "acquisition complete" break When I run this, this is my printout: