【正文】 digital clock. Keywords： digital clock,hardware description language,Verilog HDL,FPGA I 目 錄 摘 要 .....................................................................................................................................................................1 Abstract ....................................................................................................................................................................2 第一章 緒論 ...............................................................................................................................................1 . 選題意義與研究現(xiàn)狀 .................................................................................... 1 . 國內(nèi)外研究及趨 勢 ........................................................................................ 1 . 論文結(jié)構(gòu) ........................................................................................................ 2 第二章 編程軟件及語言介紹 ..................................................................................................................3 Quarters II 編程環(huán)境介紹 .............................................................................. 3 菜單欄 ..................................................................................................................................3 工具欄 ..................................................................................................................................8 功能仿真流程 .....................................................................................................................9 Verilog HDL 語言介 .................................................................................... 10 什么是 verilog HDL 語言 ............................................................................................... 10 主要功能 ........................................................................................................................... 11 第三章 數(shù)字化時鐘系統(tǒng)硬件設(shè)計 ...................................................................................................... 13 系統(tǒng)核心板電路分析 .................................................................................. 13 系統(tǒng)主板電路分析 ...................................................................................... 15 時鐘模塊電路 .................................................................................................................. 15 顯示電路 ........................................................................................................................... 15 鍵盤控制電路 .................................................................................................................. 17 蜂鳴電路設(shè)計 .................................................................................................................. 17 第四章 數(shù)字化時鐘系統(tǒng)軟件設(shè)計 ...................................................................................................... 18 整體方案介紹 .............................................................................................. 18 整體設(shè)計描述 .................................................................................................................. 18 整體信號定義 .................................................................................................................. 19 模塊框圖 ........................................................................................................................... 20 分頻模塊實現(xiàn) .............................................................................................. 20 分頻模塊描述 .................................................................................................................. 20 II 分頻模塊設(shè)計 .................................................................................................................. 20 分頻模塊仿真 .................................................................................................................. 21 計時模塊實現(xiàn) .............................................................................................. 21 計時模塊描述與實現(xiàn) .................................................................................. 21 計時模塊仿真 .............................................................................................. 23 按鍵處理模塊實現(xiàn) ...................................................................................... 23 按鍵處理模塊描述 .......................................................................................................... 23 按鍵去抖處理模塊設(shè)計 .................................................................................................. 24 按鍵模塊去抖仿真 .......................................................................................................... 24 鬧鐘模塊實現(xiàn) .............................................................................................. 25 鬧鐘模塊設(shè)計 .................................................................................................................. 25 鬧鐘設(shè)定模塊仿 真 .......................................................................................................... 25 蜂鳴器模塊實現(xiàn) .......................................................................................... 25 蜂鳴器模塊描述 .............................................................................................................. 25 蜂鳴器模塊實現(xiàn) .............................................................................................................. 26 蜂鳴器模塊仿真 .............................................................................................................. 27 顯示模塊實現(xiàn) .............................................................................................. 27 顯示模塊描述 .................................................................................................................. 27 顯示模塊實現(xiàn) .................................................................................................................. 27 顯示模塊仿真 ........................................................................................