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Generate Pulse Data on a Counter Channel

Add Counter Output Channels

Useaddoutputto add a channel that generates pulses on a counter/timer subsystem. You can generate on one channel or on multiple channels on the same device.

Generate Pulses on a Counter Output Channel

This example shows how to generate pulse data on an NI 9402 with device IDcDAQ1Mod5.

Step 1. Create a DataAcquisition object assigned to the variabled:

d = daq("ni");

Step 2. Add a counter output channel for pulse generation:

ch = addoutput(d,"cDAQ1Mod5",0,"PulseGeneration")
Index Type Device Channel Measurement Type Range Name _____ ____ ___________ _______ _________________ _____ ________________ 1 "co" "cDAQ1Mod5" "ctr0" "PulseGeneration" "n/a" "cDAQ1Mod5_ctr0"

Step 3. Configure the output counter channel properties for signal frequency and duty cycle.

ch.Frequency = 50000; ch.DutyCycle = 0.25;

Step 4. Generate pulses in the background while MATLAB®continues:

start(d,"Continuous")

Step 5. When finished, stop the DataAcquisition output.

stop(d)

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