嵌入式系统的CFSM模型

CFSM model of embedded system

随着嵌入式系统的速度、复杂度的上升,软硬件协同设计已经越来越广泛地应用于各种嵌入式系统的设计当中。介绍了一种基于常用的FSM模型的CFSM模型。CFSM模型继承了FSM模型的优点,改善了它的缺点。CFSM模型是一个通用的系统模型,既可以表示控制型系统,又可以表示数据型系统。给出了它的定义、行为描述、数学模型以及应用等。CFSM模型对软硬件都是透明的,可以推迟系统设计中的软硬件划分时间,得到更优的设计。

Since the embedded system is becoming more and more faster and complex, the hardware/software codesign methodology has been widely used in the design of embedded system. System modeling is a key element of Hardware/software codesign. A CFSM model which is based on frequently used FSM model is proposed, the CFSM mode is suited for both control dominated system and computation dominated system. The definition, behavior, mathematical model and application of CFSM model are presented. CFSM model is transparent to both hardware and software. When it is used in system design, the hardware/software partition can be postponed.