EDA技术中自顶向下方法的教学与实践  

Teaching and Practice of Top-Down Method in EDA Technology

作　　者：丁家峰[1] 李新梅[1] 尹林子[1] 王会海[1] 赵岩[1] DING Jia-feng;LI Xin-mei;YIN Lin-zi;WANG Hui-hai;ZHAO Yan(Central South University, ChangSha 410083,China)

机构地区：[1]中南大学物理与电子学院,湖南长沙410083

出　　处：《电气电子教学学报》2020年第6期91-95,共5页Journal of Electrical and Electronic Education

基　　金：中南大学教育教学改革研究项目(项目编号:2019jy112,2019jy110);湖南省普通高等学校教学改革研究立项项目(项目编号:150010004);中南大学“中南金课”项目(项目编号:512030104)。

摘　　要：自顶向下设计方法是“EDA技术与应用”课程的基础。本文从理论和实践环节上对该方法进行了研究。首先从理论上将其与自底向上的设计方法进行对比分析,得到自顶向下设计方法是一个对象认知的过程,在逐层细化的过程中实现了从黑箱到灰箱再到白箱的转变;然后以累加器为设计目标,采用图形和文本混合式多层次设计模式,通过自顶向下方法对其逐层细化;最后验证了两种设计方法的正确性,得到block元件是图形设计中区分两种设计方法的关键,并且自顶向下方法可以得到更优的设计结果。该研究对学生们深入理解现代EDA技术的精髓,正确掌握基于EDA的大规模数字系统设计方法具有积极的意义。Top-down design method is the foundation of the EDA Technology and Application course.In this paper,the method is studied in theory and practice.Firstly,it is compared with the bottom-up design method theoretically,and it is concluded that the top-down design method is a process of object cognition,and the transformation from black box to gray box to white box is realized in the process of layer by layer refinement.Then,taking the accumulator as the design goal,the mixed multi-level design pattern of graphics and text is adopted,and the layer by layer refinement is carried out by the top-down method.Finally,the correctness of the two design methods is verified,and the block component is the key to distinguish the two design methods in graphic design,and the top-down method can get better design results.This study is of positive significance for students to deeply understand the essence of modern EDA technology and correctly master the design method of large-scale digital system based on EDA.

关 键 词：电子设计自动化 自顶向下 自底向上 

分 类 号：G423.07[文化科学—课程与教学论]