I know that there exists nSchedulePriority but how do I use it to prioritize tasks. There is no information in the documentation regarding its usage or syntax, etc. Additionally, is it a variable or function or array; again the documentation fails to specify.

Here's a small sample program I just threw together. It'll show you how to assign a new priority to a task, and also store the priority into a variable so you can see what it is.

The default task priority is '7'. You can assign priorities between 0 and 255.

I still don't understand the effects of nSchedulePriority.
Is the nSchedulePriority proportional to the time slice?

if you had 1 main with nSchedulePriority = 7;
and three tasks (1,2,3) with nSchedulePriority = 14, 28, 56;
what effect will that have?

task1 2x time slice as main?
task2 4x time slice as main?
task3 8x time slice as main?

Nope, it's just a way of classifying tasks by numeric priorities...



So if the difference is 1 or 200, the higher task will use up all of the CPU time until the task is stopped or until a "wait" statement is used, allowing other lower priority threads to run. The numbers do not correspond to a proportion of priority.

It is critical that you use wait-statements when doing multitasking and your various other tasks do not need every millisecond of processing time (like waiting for a sensor to respond), otherwise the CPU will be hogged by that one task.

ok, thx.

Thank you for clearing up how to set task priority. The documentation does not provide much clarity on how to actually implement prioritization. I would suggest looking at the MSDN Library for ideas on how to organize the documentation.