RTU异步系统陷入(AST)的功能与实现

FUNCTION AND IMPLEMENTATION OF RTU ASYNCHRONOUS SYSTEM TRAP

异步系统陷入(AST)是对优先级中断的软件模拟,它是RTU操作系统的一种进程通讯方式。本文介绍了异步系统陷入(AST)的功能,并详细讨论了它的实现过程。

An Asynchronous Systrm Trap (AST) is the softuare analog of a priority in-terrupt. It is a method of interprocess communication on RTU Operating system. In thispaper, the function of Asynchrouous System Trap (AST) is presented, and its implementingprocdure is discussed in detail.