TcpNet - RTX

I need to use 2 Tcp sockets (one for received orders, and one to send datas)

Even i group all my tcp functions in a single task (with lowest priority), i can't executes other tasks.

I use a tick_timer task as in example (with highest priority) :

__task void tick_timer (void) {
  os_itv_set (10);
  while (1) {
    os_itv_wait ();
    timer_tick ();
  }
}

and task_tcp with:

  while (1) {
    main_TcpNet ();
    send_data();
    os_tsk_pass ();
  }

Do i use os_tsk_pass() in all other task ?