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電子信息專業(yè)外文翻譯---eda的發(fā)展及vhdl的應(yīng)用-電子信息-wenkub.com

2025-01-15 03:20 本頁面
   

【正文】 為協(xié)助中國客戶開展“音像”等特定應(yīng)用市場,“技術(shù)支持部門”是 Mentor 在人力投入最大的部分(過去每年幾乎為 3倍以上的速度在成長),以強(qiáng)化在Physical Design和 Functional Architecture的能力;且對于庫管理和工具的持續(xù)開發(fā)也是不遺余力,近 5年來付運量的增長均在 20%左右,營收也有 15%的進(jìn)展,是成長最快的 EDA 廠家。符合市場需求的大規(guī)模系統(tǒng)高效, 高速的完成必須有多人甚至多個代發(fā)組共同并行工作才能實現(xiàn)。 ( 1)與其他的硬件描述語言相比, VHDL 具有更強(qiáng)的行為描述能力,從而決定 了他成為系統(tǒng)設(shè)計領(lǐng)域最佳的硬件描述語言。 VHDL 是一種標(biāo)準(zhǔn)化的硬件描述語言,同一個設(shè)計描述可以被不同的工具所支持,使得設(shè)計描述的移植成為可能。 獨立于器件的設(shè)計、與工藝無關(guān)。 VHDL 具有多層次的設(shè)計描述功能,既可以描述系統(tǒng)級電路,又可以描述門級電路。 支持廣泛、易于修改。 VHDL 具有功能強(qiáng)大的語言結(jié)構(gòu),可以用簡潔明確的源代碼來描述復(fù)雜的邏輯控制。除了含有許多具有硬件特征的語句 外, VHDL 的語言形式和描述風(fēng)格與句法是十分類似于一般的計算機(jī)高級語言。因此它的應(yīng)用主要是應(yīng)用在數(shù)字電路的設(shè)計中。 VHDL語言是一種用于電路設(shè)計的高級語言。此后 VHDL 在電子設(shè)計領(lǐng)域得到了廣泛的接受,并逐步取代了原有的非標(biāo)準(zhǔn)的硬件描述語言。這些工具都有較強(qiáng)的功能,一般可用于幾個方面,例如很多軟件都可以進(jìn)行電路設(shè)計與仿真,同進(jìn)還可以進(jìn)行 PCB 自動布局布線,可輸出多種網(wǎng)表文件與第三方軟件接口。例如在飛機(jī)制造過程中,從設(shè)計、性能測試及特性分析直到飛行模擬,都可能涉及到EDA 技術(shù)。 利用 EDA 工具,電子設(shè)計師可以從概念、算法、協(xié)議等開始設(shè)計電子系統(tǒng),大量工作可以通過計算機(jī)完成,并可以將電子產(chǎn)品從電路設(shè)計、性能分析到設(shè)計出 IC版圖或 PCB 版圖的整個過程的計算機(jī)上自動處理完成。 EDA 技術(shù)就是以計算機(jī)為工具,設(shè)計者在 EDA 軟件平臺上,用硬件描述語言 HDL完成設(shè)計文件,然后由計算機(jī)自動地完成邏輯編譯、化簡、分割、綜合、優(yōu)化、布局、布線和仿真,直至對于特定目標(biāo)芯片的適配編譯、邏輯映射和編程下載等工作。在電子技術(shù)設(shè)計領(lǐng)域,可編 程邏輯器件(如 CPLD、 FPGA)的應(yīng)用,已得到廣泛的普及,這些器件為數(shù)字系統(tǒng)的設(shè)計帶來了極大的靈活性。s turn a design again. Support extensively and be easy to a the VHDL has already bee IEEE standard the norm of hardware description language, most EDA tools almost support VHDL currently, this is VHDL of further expansion with extensively applied lay the design process of the hardware electric circuit, the main design document is the source code which writes with the VHDL, the VHDL easily reads with the structure turn, so be easy to a modification design. The strong system hardware describes VHDL has a multilayer design description function, since can describe system class electric circuit, can describe door class electric circuit description since can adopt a behavior description, deposit a machine to deliver description or structure description, can also adopt the hybrid description of threes , VHDL support is inertial to delay and deliver to delay, can also accurately build up hardware electric circuit support prepare definite of with from definition of data type, bring hardware description a bigger freedom degree, make design the personnel can expediently establish the system model of high time. The independence is at the design of spare part, have nothing to do with the 39。t see part), since involve internal function and calculate way of entity to plete part to 1 designed entity to define exterior interface after, once it internal development pletion after, other designs can directly adjust to use this kind of will design entity to be divided into a little bit basic VHDL system that is a VHDL system inside the concept of outside part design design of a little bit basic and other hardware describe the language pare and the VHDL has a following characteristics: The function is strong and the design be VHDL has the function strong language structure, can describe a plicated logic control with the simple and direct and explicit source has a multilayer design description function, in multiple layers thin turn, finally directly born electric circuit class VHDL supports synchronous electric circuit, difference39。s hardware structure and work the way carry on heavy Gou and make thus the design of hardware can like software design so convenient all these biggest chan
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