def createCOPulseTask2(chan,
totTime,
delay,
pulseWidth,
numPulses=4,
edge=DAQmx_Val_Rising,
triggerSource="PFI0"):
th = Task()
#th.CreateCOPulseChanFreq ( chan, "", DAQmx_Val_Hz, DAQmx_Val_Low, delay, freq,
th.CreateCOPulseChanTime(chan, "", DAQmx_Val_Seconds, DAQmx_Val_Low, delay,
totTime - pulseWidth, pulseWidth)
th.CfgDigEdgeStartTrig(triggerSource, edge)
th.CfgImplicitTiming(DAQmx_Val_FiniteSamps, numPulses)
th.SetTrigAttribute(DAQmx_StartTrig_Retriggerable, True)
return th
from PyDAQmx import Task
import PyDAQmx
import numpy as np
from ctypes import byref
pulse = Task()
pulse.CreateCOPulseChanTime("/Dev2/ctr0", "LED pulse",
PyDAQmx.DAQmx_Val_Seconds, PyDAQmx.DAQmx_Val_Low,
1.00, 10, 10)
pulse.StartTask()
voltage = Task()
voltage.CreateAOVoltageChan("/Dev2/ao1", "LED", 0, 5, PyDAQmx.DAQmx_Val_Volts,
None)
voltage.CfgImplicitTiming(PyDAQmx.DAQmx_Val_ContSamps, 1000)
voltage.CfgDigEdgeStartTrig("/Dev2/pfi0", PyDAQmx.DAQmx_Val_Rising)
voltage.WriteAnalogScalarF64(1, 0, 3, None)
# voltage.CfgSampClkTiming(None,1000,PyDAQmx.DAQmx_Val_Rising,PyDAQmx.DAQmx_Val_ContSamps,4000)
# voltage.CfgDigEdgeStartTrig("/Dev2/pfi0",PyDAQmx.DAQmx_Val_Rising)
# voltage.StartTask()
# voltage.WriteAnalogF64(1,0,voltage_out,None)
# taskHandle,4000,0,10.0,DAQmx_Val_GroupByChannel,data,&written,NULL)
# class LED(Task):
# def __init__(self):
# Task.__init__(self)
# self.CreateAOVoltageChan("/Dev2/ao1","LED",0,5,PyDAQmx.DAQmx_Val_Volts,None)
# self.CfgSampClkTiming(None,1000,PyDAQmx.DAQmx_Val_Rising,PyDAQmx.DAQmx_Val_ContSamps,1000)
# self.CfgDigEdgeStartTrig("/Dev2/pfi0",PyDAQmx.DAQmx_Val_Rising)
# self.AutoRegisterDoneEvent(0)
print(a.message)
pmt1_gain_val = float(input("Enter voltage gain between 0.1 and 1.25 V: "))
if first_pass == True:
# Generate gating pulses
# gate = Task()
# gate.CreateCOPulseChanTime(b"/%s/ctr0"%device,"",PyDAQmx.DAQmx_Val_Seconds,PyDAQmx.DAQmx_Val_Low,10,5,5) #initial delay, low time, high time
# gate.CfgImplicitTiming(PyDAQmx.DAQmx_Val_ContSamps,buffer_size)
# gate.StartTask()
# Generate pulse
pulse = Task()
pulse.CreateCOPulseChanTime(b"/%s/ctr0"%device,"",PyDAQmx.DAQmx_Val_Seconds,PyDAQmx.DAQmx_Val_Low,30,15,15) #initial delay, low time, high time
pulse.CfgImplicitTiming(PyDAQmx.DAQmx_Val_ContSamps,buffer_size) #last is the number of pulses to generate in Finite mode
pulse.StartTask()
#PyDAQmx.DAQmxConnectTerms(b"/%s/PFI4"%device, b"/%s/PFI3"%device, PyDAQmx.DAQmx_Val_InvertPolarity)
# gate.StartTask()
# pulse.StartTask()
# Write out voltage
# led_data = np.ones(1)*4 #np.concatenate((np.ones(95)*4, np.zeros(5)))
# led = Task()
# led.CreateAOVoltageChan(b"/%s/ao0"%device,"LED",0,5,PyDAQmx.DAQmx_Val_Volts,None)
# led.CfgSampClkTiming(b"/%s/Ctr0Source"%device,sampling_freq,PyDAQmx.DAQmx_Val_Rising, PyDAQmx.DAQmx_Val_ContSamps,buffer_size)
# led.StartTask()
# led.WriteAnalogF64(100,1,10.0,PyDAQmx.DAQmx_Val_GroupByChannel,led_data,None,None)
