The requirement of real time is very high, all control tasks ;ire classified into relatively independent subprogramme by executive frequency and function to time-sharing execute.
动机抓‘制刊-实时性要求很高,将
动机的所有控制任务,
照任务的功能、执行频率、实时性划丫分为相对独立的子
,
照实时性要求,分时执行。