waveform graph update indicator

[Pavitra]

I am updating a waveform graph several times inside a loop and i want an LED to light up each time it updates. Are there any waveform properties which will help me achieve this

[altenbach]

This is actually a bit unclear. What do you define as an "update"? Do you have "synchronous diplay" set? Do you consider it an "update" if you send the same data again to it?

It would make more sense to define a boolean that is lit whenever the graph data changed. Just put the graph data in a shift register and compare the current data to the data from the previous loop iteration.