Digital pulse generation with PyDAQmx in Python

DAQmxPulseGeneration.py

# Simple digital pulse generation with PyDAQmx library and NI DAQmx board
# Requires NI DAQmx drivers, Python 2.7 installed, Windows.
# Tested on NI PCIe-6321 board
# Gist author: Nikita Vladimirov @nvladimus
import PyDAQmx as pd
ctr_ini_delay = 0 # sec
ctr_period = 0.1 # sec
ctr_duty_cycle = 0.01
task = pd.Task()
task.CreateCOPulseChanFreq("Dev1/ctr0",  "CamTrigger",  pd.DAQmx_Val_Hz,  pd.DAQmx_Val_Low,   ctr_ini_delay,  1/float(ctr_period),  ctr_duty_cycle)
task.CfgImplicitTiming(pd.DAQmx_Val_ContSamps,  1000)
task.StartTask() 
# Go and measure the pulses with oscilloscope. 
# Output will be at terminal pin "Ctr0 OUT" 
# check your NI DAQmx board pinout diagram for terminal location
# It was "PFI 12" on my board NI PCIe-6321.
task.StopTask()
task.ClearTask()