ARTX166 V2.00 Round Robin and os_dly_wait() incompatibility

Hello,

I believe that the round robin task switching won't perform correctly if any task with a rather high priority waits on a delay less than or equal to OS_ROBINTOUT.

Is this a normal behavior?

It is easy to illustrate this problem, at least on my machine:
- open the round robin example (usually located at ...\keil\C166\AR166\Examples\RoundRobin)
- make sure that OS_ROBINTOUT is defined to 5 in the AR166_Config.c file
- compile and run the example in debug mode
- observe that task 1 and task 2 are both executed from time to time, according to the round robin scheduler. This is normal.
- replace the task 4 by the following code:

void task4 (void) _task_ 4 _priority_ 6
{
  while (1)
  {
    os_dly_wait(5); // 5 or less
    counter4++;
  }
}