User`s guide

Tasks
Thread Scheduling 4-43
Figure 4-11. Right Side of Task Manager Display
3) To change the priority of a task object, drag the task to the folder of the
corresponding priority. For example, to change the priority of TSK1 to 3,
select it with the mouse and drag it to the folder labeled Priority 3.
4) You can also change the priority of a task in the Properties window which
you can select when you right-click on the TSK object pop-up menu
When you use the Configuration Tool to create tasks of equal priority,
they are scheduled in the order in which they are listed in the
Configuration Tool window. Tasks can have up to 16 priority levels. The
highest level is 15 and the lowest is 0. The priority level of 0 is reserved
for the system idle task. You cannot sort tasks within a single priority
level.
If you want a task to be created in the suspended mode
(TSK_BLOCKED), drag it to the folder labeled Priority –1. For more
information on task suspend, see Figure 4-12.
The Property window for a TSK object shows its numeric priority level (from
0 to 15; 15 is the highest level). You can also set the priority by selecting the
priority level from the menu in the Property window as shown in Figure 4-12.