Simple question: task calling function... does the funcion inherit the same properties?

James Thorton said:

does the function work like if its code was copy and pasted inside the task? In other words, does the funcion inherit the properties of the task from where it was called or what?

If I understand your question correctly the answer is yes, calling functions within a TSK does not change the execution state of the application, i.e. a function called from within a TSK is still considered part of the TSK.

James Thorton said:

Task of low priority call to the function. The function is being executed when task 1 (higher priority) wake up. Could task 1 interrupt the function directly, or does the function need to return previously to task2 and then it will be there interrupt from the other task???

The high priority TSK can always interrupt a lower priority TSK including functions called by that TSK, and when the higher priority TSK blocks again the lower priority TSK will continue where it left off in the function. In general the higher priority TSK will only become unblocked if there is either some hardware interrupt that happens or if the lower priority TSK posts the higher priority TSK, so if you think about it that way the lower priority TSK will always be safe to return to even if it is in the middle of a function called from the original TSK function. See the diagram below for the execution of your proposed example.