How can I make difference frequency on NI USB-6259?

[simpson67]

I wanna get difference frequency between 100kHz sine wave and 90kHz sine wave.(=10kHz)

For getting that difference frequency, I think I have to make different two sine waves. But I can't it..

But I encounterred some error masages.. If I can get the difference frequency, I hope to send any analog output.

I will attach my project. plz find the errors if you can..
plz help me TT

[Hooovahh]

Do you need to behave like a frequency sweep?  If so you won't be able to do it with a Analog Output, instead you'll want a counter.  If you just want some way to change the frequency at from a UI control that can be done no problem.  What have you tried so far?  Post code you have done in an attempt to make it work.

[simpson67]

thank you for reply.

plz see under picture. I wanna get green wave.

[simpson67]

dd

[simpson67]

ff

[Hooovahh]

http://www.catb.org/esr/faqs/smart-questions.html

By the way you didn't post anything.