【正文】 ....... 1 課題背景 ............................................................................................................... 1 LED 點(diǎn)陣的發(fā)展現(xiàn)狀 ........................................................................................... 2 國(guó)內(nèi)外 LED 點(diǎn)陣的發(fā)展現(xiàn)狀 ....................................................................... 2 研究 LED 點(diǎn)陣的目的及意義 ....................................................................... 2 LED 點(diǎn)陣的發(fā)展趨勢(shì) ........................................................................................... 3 論文結(jié)構(gòu) ............................................................................................................... 4 第二章 系統(tǒng)方案設(shè)計(jì) ................................................................................................. 5 設(shè)計(jì)任務(wù)與要求 ................................................................................................... 5 設(shè)計(jì)任務(wù) ......................................................................................................... 5 設(shè)計(jì)要求 ......................................................................................................... 5 方案設(shè)計(jì)與比較 ................................................................................................... 5 方案設(shè)計(jì) ......................................................................................................... 5 方案比較 ......................................................................................................... 5 掃描控制模塊 ....................................................................................................... 6 LED 的顯示原理 ............................................................................................ 6 LED 點(diǎn)陣的顯示方式 .................................................................................... 7 LED 點(diǎn)陣漢字的存儲(chǔ) ........................................................................................... 7 本章小結(jié) ............................................................................................................... 8 第三章 硬件設(shè)計(jì) ......................................................................................................... 9 功能要求 ............................................................................................................... 9 硬件說(shuō)明 ............................................................................................................... 9 硬件設(shè)計(jì) ............................................................................................................... 9 串行通信模塊 ................................................................................................ 9 LED 點(diǎn)陣屏及驅(qū)動(dòng)電路 ............................................................................... 10 LED 時(shí)鐘芯片 ............................................................................................... 10 FPGA 控制模塊 ............................................................................................. 10 串行通信電路 ................................................................................................ 11 本章小結(jié) ............................................................................................................. 12 第四章 軟件設(shè)計(jì) ....................................................................................................... 13 十六進(jìn)制計(jì)數(shù) 器設(shè)計(jì) ......................................................................................... 13 列驅(qū)動(dòng)設(shè)計(jì) ......................................................................................................... 14 字符樣式設(shè)計(jì) ..................................................................................................... 15 本章小結(jié) ............................................................................................................. 18 第五章 基于 FPGA 的 LED 點(diǎn)陣 ............................................................................ 19 FPGA 設(shè)計(jì)的特點(diǎn) .............................................................................................. 19 目 錄 IV 開(kāi)發(fā)環(huán)境介紹 ..................................................................................................... 19 調(diào)試與仿真 ......................................................................................................... 20 創(chuàng)建工程 ....................................................................................................... 20 編譯前設(shè)置 ................................................................................................... 20 全程編譯 ....................................................................................................... 23 時(shí)序仿真 ....................................................................................................... 24 本章小結(jié) ............................................................................................................. 26 第六章 總結(jié)與展望 .................................................................................................. 27 總結(jié) ..................................................................................................................... 27 展望 ..................................................................................................................... 27 致 謝 ........................................................................................................................... 29 參考文獻(xiàn) ....................................................................................................................... 31 第一章 緒論 1 第一章 緒論