摘要 電子設計自動化（EDA）是一種實現(xiàn)電子系統(tǒng)或電子產品自動化設計的技術，它與電子技術、微電子技術的發(fā)展密切相關，它吸收了計算機科學領域的大多數(shù)最新研究成果，以高性能的計算機作為工作平臺，促進了工程發(fā)展。EDA的一個重要特征是使用硬件描述語言（HDL）來完成設計。超高速硬件描述語言（VHDL）是經(jīng)IEEE和美國國防部確認的標準硬件描述語言，自IEEE公布了VHDL的標準版本，IEEE-1076之后，各EDA公司相繼推出了自己的VHDL設計環(huán)境，或宣布自己的設計工具可以和VHDL接口。此后VHDL逐步取代了原有的非標準的硬件描述語言。1993年，IEEE對VHDL進行了修訂，從更高的抽象層次和系統(tǒng)描述能力上擴展VHDL的內容。本文介紹了基于VHDL語言實現(xiàn)的電梯控制系統(tǒng)的設計，使用了狀態(tài)機，并進行了軟件和實驗平臺的仿真。該控制系統(tǒng)遵循方向優(yōu)先的原則，提供樓層用戶的載客服務并指示電梯的運行情況。說明了用VHDL 語言設計數(shù)字電路的方法以及VHDL 語言在數(shù)字電路設計仿真中的重要作用, 仿真結果表明VHDL 語言應用于數(shù)字電路仿真是切實可行的，該語言在電子設計領域受到了廣泛的接受。 關鍵詞： EDA VHDL 電梯控制 狀態(tài)機 ABSTRACT Electronic design automation (EDA) is a realization of an electronic system or electronic design automation products of technology, with electronic technology, microelectronic technology is closely related to the development, it has absorbed most of the field of computer science and the latest research results, as a high-performance computer Working platform to promote the development of the project. EDA is an important feature of the use of hardware description language (HDL) to complete the design. Super-high-speed hardware description language (VHDL) is the IEEE and the U.S. Department of Defense confirmed the standard hardware description language, since the publication of the IEEE VHDL version of the standard, IEEE-1076, the EDA companies have launched their own VHDL design environment, or to be declared Their design tools and VHDL interface. Since then VHDL gradually replace the original non-standard hardware description language. 1993, IEEE on VHDL was revised from a higher level of abstraction and system capacity expansion VHDL description of the contents. In this paper, based on VHDL language of the elevator control system design, the use of the state machine and a software platform for simulation and experiment. The control system to follow the direction of the principle of giving priority to provide the passenger service users floors and directed the operation of the lift. Note the use of VHDL digital circuit design methods and VHDL in digital circuit design to the important role of simulation, simulation results show that the VHDL language used in digital circuit simulation is practicable, the language in the field of electronic design has been widely accepted.
KEY WORDS： EDA VHDL elevator control State Machine
