帮忙翻译下英文摘要!!跪求！！

来源：百度知道 编辑：UC知道 时间：2024/05/16 15:44:18
在电子设计领域，随着计算机技术、大规模集成电路技术、EDA(Electronics Design Automation)技术的发展和可编程逻辑器件的广泛应用，传统的自下而上的数字电路设计方法、工具、器件已远远落后于当今技术的发展。基于EDA技术和硬件描述语言的自上而下的设计技术正在承担起越来越多的数字系统设计任务。本文首先综述了EDA技术的发展概况，FPGA/CPLD开发的流程、优点，VHDL语言的历史、开发步骤及其优点；然后介绍了频率测量的一般原理；接着使用EDA技术，用VHDL语言完成了数字频率计系统的设计工作；最后介绍了EDA技术的前沿发展趋势及系统开发的几点体会。
本课题的数字频率计设计，完全使用一块复杂可编程逻辑器件CPLD(Complex Programmable Logic Device)芯片EPM7128SLC84-15实现整个电路的测试信号控制、各种时序逻辑控制、计数功能、数码管的显示输出。在MAX+PLUSII、QUARTUS软件平台上，用VHDL语言编程完成了CPLD的软件设计、编译、调试、仿真和下载。不但大大缩短了开发研制周期，而且使本系统具有结构紧凑、体积小、可靠性高、测频范围宽、精度高等优点。本文详细论述了系统自上而下的设计方法及各部分硬件电路组成及CPLD的软件编程设计。

Design the realm in the electronics, along with the extensive application of the technical development and the programmable logic machine piece of calculator technique, large scale integration technique, EDA( the Electronics Design Automation), traditional from under but up of numerical electric circuit design method, tool, the machine piece has already got behind with far and far technical development nowadays.According to the technique of EDA and the hardware description language of from top to bottom of design technique is undertaking to rise more and more numerical system design mission.This text first overview technical development general situation of EDA, the process, advantage of the FPGA/ CPLD development, the history of the VHDL language, development step and its advantage;Then introduced the general theory that frequency measure;Use the technique of EDA immediately after, completed the numerical frequency to account the design work of the system with the language of VHDL