why does the waveform generator reset every time?

[deconvolute]

Hi,
  I'm an extreme noob, like today, but I do have some experience with other DAQ software such as Dspace.  I'm trying to use Sawtooth Waveform.vi.  When I change frequency and amplitude then close that VI and go back to my block diagram and run it, the frequency and amplitude are still the defaults.  I don't know how to save the changes when I make them.  The "save" option on the menu is grayed out, and choosing "save all" does not seem to help.  I'm using version 8.2.1.

Thanks,
Brett

[Dennis_Knutson]

To save control values, go to Options>Make Current Values Default. Then save the VI. Hoever, it is not a good idea to do whis with one of the shipping VIs unless you save it in a new location and with a different name. Instead, create a VI that calls Sawtooth Waveform and either create controls for it on the front panel of your VI or add constants on the block diagram. You really need to spend a bit of time learning some of the LabVIEW basics. A good place to start for with some free tutorials is at http://www.ni.com/academic/lv_training/how_learn_lv.htm.

[deconvolute]

Dennis,
  Your message was a big help.  Although I had figured out controls and constants (in a simplistic sense), it seemed like one should be able to change the vi values.  After seeing your note, I just used constants, and everything's good.