摘 要
目前人類社會(huì)已步入了信息時(shí)代，信息產(chǎn)業(yè)已成為衡量一個(gè)國家現(xiàn)代化水平的重要標(biāo)志。人們信息的獲取有80%來自視覺，各種信息最終都要通過信息顯示來實(shí)現(xiàn)人機(jī)交換。顯示器是人與機(jī)器溝通的重要界面，早期以顯像管CRT 顯示器為主，但隨著科技不斷進(jìn)步，近年來，由于液晶顯示器（LCD）具有輕薄短小、低耗電量、無輻射危險(xiǎn)、平面直角顯示以及影像穩(wěn)定不閃爍等優(yōu)勢(shì)，并且在價(jià)格不斷下跌的情況下，逐漸取代CRT之主流地位。本論文提出了以ARM7控制液晶顯示模塊實(shí)現(xiàn)顯示功能的技術(shù)方案，針對(duì)工業(yè)控制，手持設(shè)備和儀器儀表設(shè)備常用的DM12232F點(diǎn)陣圖形液晶顯示模塊，與其他液晶顯示模塊相比，它具有接口簡(jiǎn)單，性價(jià)比高的優(yōu)點(diǎn)。
本論文設(shè)計(jì)了控制電路的硬件連接圖，根據(jù)液晶顯示模塊DM12232F和LPC2138的管腳功能，通過研究芯片的內(nèi)部時(shí)序完成液晶顯示的驅(qū)動(dòng)子程序。設(shè)計(jì)結(jié)果表明液晶顯示模塊獲得了理想的顯示效果，而作為一種通用模塊它是可移植的。本設(shè)計(jì)是在Keil uVision2開發(fā)環(huán)境下采用C語言設(shè)計(jì)并實(shí)現(xiàn)液晶顯示的驅(qū)動(dòng)。










關(guān)鍵詞 液晶顯示ARM7 通信

Abstract
At present，human society has entered the information age, information industry has become an important symbol to measure a country's modernization level. The 80 percent of information that people collect is from people’s eyesight, information will eventually realize human-machine exchange through information display. Display is an important communication interface between human being and machine, the early display is mainly kinescope CRT, but with the progress of science and technology in recent years, since liquid crystal display (LCD) has many advantages such as light weight, small size, low power consumption, no radiation hazard, flat rectangular display , stable image and so on, and its price is dropping continuously, LCD is gradually replacing CRT's mainstream status. This paper proposes an ARM7 LCD module implements display technology control procedures. According to industrial control, Hand-held devices and instrumentation equipment, commonly used DM12232F bitmap graphics LCD module. Compared with other LCD module, it has a simple interface, the advantages of high performance/price ratio.
This paper designed the control circuit of the hardware connection diagram. According to LCD module DM12232F and LPC2138 tube foot function, Through the research microchip finish liquid crystal display inside drivers .The results of the experiment show that the LCD module has an ideal displaying function both in the local display and communication applications, and as a general module it is transplantable, This design is uVision2 development environment, you can use C language design and realize the liquid crystal display driver.



Key words LCD ARM7 Communication Protocol


摘 要 I
Abstract II

第1章 緒論 1
1.1 ARM處理器 1
1.1.1 ARM處理器的分類及結(jié)構(gòu) 1
1.1.2 利用ARM處理器開發(fā)的優(yōu)勢(shì) 3
1.2 ARM處理器的技術(shù)發(fā)展趨勢(shì) 4
1.3 KEIL軟件介紹 6
1.4 本設(shè)計(jì)的研究?jī)?nèi)容 6
第2章 液晶顯示技術(shù)的概述 7
2.1 液晶的發(fā)展史 7
2.2 液晶的類別 7
2.3 液晶顯示原理 8
2.4 本章小結(jié) 9
第3章 液晶顯示驅(qū)動(dòng)的硬件設(shè)計(jì) 10
3.1 液晶的選擇 10
3.2 ARM7處理器的選擇 10
3.3 液晶DM12232F與LPC2138接口電路設(shè)計(jì) 11
3.3.1 DM12232F管腳內(nèi)部模塊 12
3.3.2 LPC2138引腳和功能說明 14
3.3.3 接口電路設(shè)計(jì) 16
3.3.4印制電路板的設(shè)計(jì) 17
3.4本章小結(jié) 18
第4章 液晶顯示模塊的軟件驅(qū)動(dòng)設(shè)計(jì) 19
4.1 DM12232F指令集及時(shí)序 19
4.2 驅(qū)動(dòng)程序設(shè)計(jì)及實(shí)驗(yàn)結(jié)果 24
4.3 本章小結(jié) 26
結(jié)論 27
致謝 28
參考文獻(xiàn) 29
附錄1 30