【正文】 基于 Synopsys的多功能時鐘芯片的設計 I 基于 Synopsys 的多功能時鐘芯片的設計 [摘要 ] 本次設計 為了降低電子鐘的成本，減少電子鐘的面積和體積，集成更多的個性化功能，便在 基于硬件描述語言 VHDL 或 Verilog HDL 為基礎的 EDA 設計方法上，來設計新型的電子鐘。 設計中根據(jù)系統(tǒng)的功能要求合理劃分出層次，進行分級設計和仿真驗證，將較為復雜的數(shù)字系統(tǒng)邏輯簡化為基本的模型從而降低實現(xiàn)的難度。以層次化的設計方法，自頂向下進行設計，最終把不同的功能模塊組合到一起，這個過程使用Modelsim 仿真軟件和 synopsys 平臺上的綜合軟件（ Design Compiler）進行設計編譯仿真，最終生成電路網(wǎng)表， 通過網(wǎng)表電路繪制出 電子鐘芯片版圖。實現(xiàn)了包含基本時分秒、年月日、日程提醒、農(nóng)歷顯示、傳統(tǒng)節(jié)假日提醒、鬧鈴閏年閏月提醒等多功能的電子鐘。整個過程 涉及了 EDA 設計的完整流程，可以很方便地通過修改增刪，應用于各種相關系統(tǒng)中。 [關鍵字 ] 硬件描述語言 VHDL、 Synopsys、 Modelsim、低功耗、版圖繪制 基于 Synopsys的多功能時鐘芯片的設計 II The design of the multifunction clock chip based on Synopsys Abstract： This design in order to reduce the cost of electronic clock, reduce the area and volume electronic clock, integrated more personalized features, then based on the hardware description language VHDL or Verilog HDL based on EDA design method, to design a new type of electronic clock. Based on the function of the system in the design of reasonable divided into layers, for hierarchical design and simulation, to simplify the plex number system logic as a basic model to reduce the difficulty of implementation. With design method of hierarchical, topdown design, the different function modules together, finally the process using Modelsim simulation software and the design of the integrated software synopsys platform to pile the simulation, the resulting table the electric work, through the work table circuit map electronic clock chip layout. Implements contains basic split second, when (date) (month) (year), reminders, leap year lunar calendar display, traditional festivals remind, alarm leap month remind and other multifunction electronic clock. The process involves the plete process of EDA design, can be easily by changing the add or delete, applied to various kinds of related systems. Key words: VHDL hardware description language, Synopsys, Modelsim, low power consumption, map drawing 目錄 III 目錄 引言 ............................................................................................................................................. 1 第一章 : Synopsys簡介 ................................................................................................................ 2 Synopsys的簡單工作原理 ............................................................................................... 2 Synopsys的應用 ............................................................................................................. 2 第二章： Design Compiler 和 Modelsim 簡介 .................................................................................. 3 Design Compiler介紹 .................................................................................................. 3 Modelsim 介紹 ............................................................................................................... 4 第三章 時鐘芯片設計方案 ............................................................................................................ 7 多功能時鐘的設計指標 ................................................................................................... 7 基于 Modelsim對多功能時鐘芯片的設計方案 .................................................................. 7 第四章 時鐘芯片各模塊的設計及仿真 .................................................. 9 設計原理 ........................................................................................................................ 9 基本顯示功能 ................................................................................................................10 秒鐘模塊 ...........................................................................................................10 分鐘模塊 .............................................................................................................12 時鐘模塊 .............................................................................................................13 日模塊 ................................................................................................................15 月模塊 ................................................................................................................17 年模塊 ................................................................................................................18 陰陽歷顯示 .........................................................................................................20 提醒功能 .......................................................................................................................20 .......................................................................................................20 節(jié)假日提醒 .........................................................................................................21 日程提醒 .............................................................................................................22 時間校對功能 ................................................................................................................23 鬧鈴功能 .......................................................................................................................24 第五章 電路網(wǎng)表和版圖 ............................................................ 26 總電路仿真圖 ................................................................................................................26 總電路網(wǎng)表 ....................................................................................................................26 多功能時鐘芯片版圖 ......................................................................................................27 總結 ............................................................................................................................................29 致謝語 .................................