Hello,
I have a VI that I use to generate a sawtooth wave of varying amplitudes and frequencies ( 0<A<2V, 0<f<2000Hz). This is a fairly simple task, the frequencies and amplitudes don't even change with respect to time, just experiment to experiment.
I cannot use an express VI (at least I don't think I can), because
of some features of my VI that require the signal to be turned
off/turned back on, or have the amplitude and frequency
programmatically change. I can attach the actual VI if anyone is
interested.
Currently, I am basically just using one of the provided examples (Labview 8.6) in /examples/daqmx/analogout. It does a pretty good job, but I would like to make sure I am generating the best possible sawtooth for my application. Also, I find that the output (on a scope) tends to look kind of ugly.
For instance, there are settings for sample rate, number of samples, cycles/buffer, ....
If I would like to produce the cleanest possible signal (least amount
of sample and hold steps, little to no jitter) that can run for an arbitrary amount of time,
how would I do this? What should my settings for cycles/buffer, or
number of samples be? I feel like I should be able to work this all out with paper and pencil, but I just haven't quite go it.
Any help with best practices for labview (reference code, book) or
even a standard text on the subject would be much appreciated.
Cheers,
-Benedict
