While loop doesnt start

[k0ewl]

Hi, its me again.

Still working on the same program. The program just reads some values and puts them into an array.
This is timed, but not exaclty correct. It waits for 10ms and then counts 10 up one the time-variable.
When u have a measurement time of 3 hz, it waits until the remainder of time is 0.
I calculate this like so:

remainder = time / (1000 / rate)

So if rate = 3, the time has to be 333,3333333 to enter the while loop.

Thinking of this, the programs while loop has to run every ms, which is kinda impossible IMHO.
So how to solve this?

And then another problem, the while loop which has the calculate loop etc inside of it, doesnt run on program execution. I'm wondering why not...

[altenbach]

You have to familiarize with the basic concepts of dataflow. Look at some example programs. Do some online tutorials.

In this particular case:

All loops on the left cannot start until the loop on the right finishes. They must wait for the boolean wires to contain data and this only happens once the loop in the right exits.

[k0ewl]

okay. But it only has to start when the start button is pressed. That means that all the wires are connected.

[GerdW]

Hello k0ewl,

just read the chapter on dataflow 🙂 And then the chapter on programming style guide too... (Your program is much easier to understand when all data flows from left to right!)

The "measurement" can only start when the while loop containing the event structure finishes! This only happens when you press "exit". So you never see the measurement running, just the dialog window "2".