【正文】 本科畢業(yè)論文（設(shè)計(jì)） 題 目 基于 DSP 芯片的 LCD 模塊設(shè)計(jì) 院（系） 電子信息工程及電氣自動(dòng)化學(xué)院 專 業(yè) 電子信息工程 學(xué)生姓名 學(xué) 號(hào) 指導(dǎo)教師 職稱 助教 高工 論文字?jǐn)?shù) 完成日期 : 2022 年 5 月 24 日 I 基于 DSP 芯片的 LCD 模塊設(shè)計(jì) 摘 要 隨著電子產(chǎn)品的迅速發(fā)展， DSP 技術(shù)的應(yīng)用也越來越廣泛，從日常的生產(chǎn)生活到國家的航空航天事業(yè)以及軍事上，都有 DSP 技術(shù)的身影。 DSP 技術(shù)和理論已成為目前 IT 領(lǐng)域和電子技術(shù)行業(yè)的基本理論與核心。所以，把 DSP 技術(shù)與理論應(yīng)用到平時(shí)的教學(xué)實(shí)踐中是十分必要的。 在目前電子產(chǎn)品集成化迅速發(fā)展的趨勢(shì)下，液晶顯示屏作為一種電子顯示設(shè)備，以其自身獨(dú)特的優(yōu)勢(shì)正在廣泛應(yīng)用于各種電子儀器儀表設(shè)備中，作為文字或圖片的顯示器件。 本系統(tǒng)設(shè)計(jì)是從數(shù)字信號(hào)處理芯片 TMS320F2812 出發(fā)，以內(nèi)置液晶顯示控制器 ST7920 的育松電子的液晶顯示模塊QC12864B 為例，利用 C 語言編程，來介紹怎樣實(shí)現(xiàn) DSP 芯片與液晶模塊之間的通信，以及利用 DSP 芯片來控制實(shí)現(xiàn) LCD 的圖文顯示。軟件部分，整個(gè)系統(tǒng)設(shè)計(jì)程序的編譯與調(diào)試均在 CCS環(huán)境 下進(jìn)行。 關(guān)鍵詞： DSP 芯片； LCD； CCS 環(huán)境； II The LCD module design based on DSP chip Abstract With the rapid development of electronic products,DSP technology is also applied more widely, from everyday life to the aerospace industry producing countries and the military, has DSP technology technology and theory has bee the basic theory and core areas of IT and electronics , the DSP technology and theory to teaching practice is usually necessary. In the current integration under the trend of rapid development of electronic products, LCD display, as a kind of electronic display equipment, with its own unique advantages are widely used in various electronic instrumentation equipment, as a text or image display device. The system is designed from the digital signal processing chip TMS320F2812,ST7920 LCD controller with builtfertility loose electrons LCD module QC12864B an example,The use of the C programming language, to introduce how to achieve munication between the DSP chip and LCD module,And the use of DSP chip to control the realization of LCD graphic part of the system design process to pile and debug environment were carried out at CCS. Keyword： DSP chip, LCD, CCS setting 目 錄 摘 要 .......................................................................................................................... I Abstract .......................................................................................................................... II 1 緒論 ............................................................................................................................ 1 課題研究背景 .................................................................................................. 1 課題研究的現(xiàn)狀 .............................................................................................. 1 本課題研究的主要內(nèi)容 .................................................................................. 2 2 系統(tǒng)總體設(shè)計(jì) ............................................................................................................ 3 系統(tǒng)的設(shè)計(jì)方法 .............................................................................................. 3 系統(tǒng)設(shè)計(jì)的總體功能框圖 .............................................................................. 4 系統(tǒng)各功能模塊介紹 ...................................................................................... 4 電源模塊 ................................................................................................ 4 復(fù)位電路模塊 ........................................................................................ 5 時(shí)鐘電路模塊 ........................................................................................ 6 JTAG電路模塊 ........................................................................................ 7 顯示模 塊 ................................................................................................ 8 TMS320F2812介紹 ........................................................................................... 8 3 LCD模塊硬件設(shè)計(jì) ................................................................................................... 11 設(shè)計(jì)原理 ........................................................................................................ 11 擴(kuò)展 IO 接口 ........................................................................................ 11 液晶顯示模塊的訪問與控制 .............................................................. 12 液晶的顯示控制方法 .......................................................................... 13 液晶控制芯片 ST7920 介紹 ........................................................................ 14 ...................................................................................................... 15 4 軟件設(shè)計(jì) .................................................................................................................. 17 CCS(Code Composer Studio)簡(jiǎn)介 .................................................................. 17 CCS 常用指令簡(jiǎn)介 .............................................................................. 17 DSP 的 C 語言程序開發(fā)流程 ...................................................................... 18 LCD液晶 12864的控制命令 ........................................................................... 19 液晶文字及圖片的顯示 ................................................................................ 21 5 系統(tǒng)硬件實(shí)現(xiàn) .......................................................................................................... 22 硬件實(shí)現(xiàn)要到達(dá)的效果 ................................................................................ 23 控制液晶顯示器顯示 .................................................................................... 25 實(shí)現(xiàn)文字的單獨(dú)顯示 ........................................................................ 25 實(shí)現(xiàn)圖片的單獨(dú)顯示 ........................................................................ 25 實(shí)現(xiàn)文字與圖片的切換顯示 ............................................................ 26 6 總結(jié) .......................................................................................................................... 27 參考文獻(xiàn) .........................................................