Superimpose

[Savinda]

Hi! I am new with LabVIEW and am trying to design an oscilloscope with a basic function generator and a sawtooth waveform generator for the sweep signal. However, I am having a little trouble figuring out how to incorporate a trigger to the oscilloscope. I am also getting return lines across across my scope screen for very low time base values, and was told that I have to superimpose a square wave onto the input signal to stop this, but I can't find a VI to superimpose two signals. Any help would be deeply appreciated!
Thanks a lot! 

[Tori.M]

Hi Savinda,

Firstly thanks for using the forums! Although please do try to avoid doing multiple posts for the same issue.

With regards to coding if you're new to LabVIEW, have you looked at our community pages? I also tend to find the Examples very useful which you can find by opening up LabVIEW then going to help >> find examples.

If you require a sawtooth waveform generator, have you looked at the Express VI - Simulate Signal in LabVIEW? You can find this by right-clicking on the block diagram to bring up the functions palette, express, input, simulate signal. Then you can select a sawtooth wave from the dialogue box.

The best advice I could give you would be to check out as many examples as possible and just have a "play" with LabVIEW. Context help is also pretty useful if you're not quite sure what a VI does (help, show context help).

It may also be useful to consider attending our Core 1 training course which teaches the LabVIEW Basics and is also offered at an Academic rate if you are a student.

Hope this helps!

Kind regards,

[Savinda]

Yeah alright, thanks!! 

I managed to do this in a woundabout way; I made two different graphs and then made one transparent and placed it over the other; which was a method shown in the examples on NI!!! Thanks a lot! 

Savinda