【正文】 2 以其特有的優(yōu)點正在廣泛的應用于各種電子儀器儀表設備中去。 課題研究的現(xiàn)狀 近年來，隨著低價格、高性能的 DSP 芯片的出現(xiàn)， DSP 應用的迅速發(fā)展為數(shù)字產(chǎn)品帶來了十分廣闊的發(fā)展空間。 在顯示屏中 LCD 液晶以其自身顯示的直觀性與操作便捷等特點被廣泛應用于各種儀器儀表的顯示模塊中。 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)總體設計 ............................................................................................................ 3 系統(tǒng)的設計方法 .............................................................................................. 3 系統(tǒng)設計的總體功能框圖 .............................................................................. 4 系統(tǒng)各功能模塊介紹 ...................................................................................... 4 電源模塊 ................................................................................................ 4 復位電路模塊 ........................................................................................ 5 時鐘電路模塊 ........................................................................................ 6 JTAG電路模塊 ........................................................................................ 7 顯示模 塊 ................................................................................................ 8 TMS320F2812介紹 ........................................................................................... 8 3 LCD模塊硬件設計 ................................................................................................... 11 設計原理 ........................................................................................................ 11 擴展 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 軟件設計 .................................................................................................................. 17 CCS(Code Composer Studio)簡介 .................................................................. 17 CCS 常用指令簡介 .............................................................................. 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)硬件實現(xiàn) .......................................................................................................... 22 硬件實現(xiàn)要到達的效果 ................................................................................ 23 控制液晶顯示器顯示 .................................................................................... 25 實現(xiàn)文字的單獨顯示 ........................................................................ 25 實現(xiàn)圖片的單獨顯示 ........................................................................ 25 實現(xiàn)文字與圖片的切換顯示 ............................................................ 26 6 總結(jié) .......................................................................................................................... 27 參考文獻 ...................................................................................................................... 28 致 謝 ...................................................................................................................... 29 附 錄 ...................................................................................................................... 30 巢湖學院 2022 屆本科畢業(yè)論文（設計） 1 1 緒論 在本章節(jié)中主要介紹的是本系統(tǒng)設計研究的背景，以及數(shù)字信號處理 DSP 和 LCD 液晶的現(xiàn)狀，并且從大體上介紹了本系統(tǒng)設計的主要內(nèi)容。所以，把 DSP 技術(shù)與理論應用到平時的教學實踐中是十分必要的。 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。軟件部分，整個系統(tǒng)設計程序的編譯與調(diào)試均在 CCS環(huán)境 下進行。近年來 DSP 技術(shù)的發(fā)展