How to generate a TTL high and TTL low pulse using USAB daq board

[AnkitG]

Hi All ,

I have usb daq 6361, How can I generate a TTL high and low pulse in labview to trigger my camera. 

Thanks

[Bob_Schor]

Did you read the Manual, particularly the section "Programming Devices in Software"?  Do you have experience with LabVIEW?  If not, do you have access to this expertise (students, teachers, contract employees, etc.)?

If you are interested in learning LabVIEW yourself for this Project, there are numerous on-line tutorials, including an excellent series on DAQmx.

Bob Schor

[AnkitG]

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@Bob_Schor wrote:

Did you read the Manual, particularly the section "Programming Devices in Software"?  Do you have experience with LabVIEW?  If not, do you have access to this expertise (students, teachers, contract employees, etc.)?

If you are interested in learning LabVIEW yourself for this Project, there are numerous on-line tutorials, including an excellent series on DAQmx.

Bob Schor

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, I do have experience with labview, i just couldnt understand how to generate an active high or low  TTL signal using daq and I dont see any expamples related to that. 

[Bob_Schor · Accepted solution]

Here is some DAQmx code to start your 6361, set a Digital Output to True (TTL High), wait a second, then set it to False (TTL Low).  Have you tried plugging your device into your PC and firing up MAX?  It should "see" the device, and you can manipulate its ports to test it out.  Indeed, the name that MAX gives your device is what you'll put into that first I/O Constant on my example (if you click the drop-down symbol, you should see a list of the devices that MAX found).

Bob Schor

[Dennis_Knutson]

He's asked the same question several times, going back to the end of January.
Gets an answer and doesn't respond.

[AnkitG]

I didn't know that a digital line will create an ttl signal, I was thinking ttl signal as an analog output voltage

[Bob_Schor]

Thanks, Dennis.  It sounds like AnkitG needs to just go and hire some professional help to get his (or her) problem solved.

BS

[Bob_Schor]

The "L" of TTL (Transitor-Transistor Logic) is "Logic", or Boolean, 0 or 1 (or Digital).

BS

[Dennis_Knutson]

If you did not understand, why didn't you respond when you were told to use a digital line? Of you don't have any electronics background, find a student at your school that does.