畢業(yè)論文led顯示屏

1、I摘要摘要LED顯示屏，發(fā)光二極管的英文縮寫(xiě)，簡(jiǎn)稱(chēng)LED。它是一種通過(guò)控制半導(dǎo)體發(fā)光二極管的顯示方式，其大概的樣子就是由很多個(gè)通常是紅色的發(fā)光二極管組成，靠燈的亮滅來(lái)顯示字符。用來(lái)顯示文字、圖形、圖像、動(dòng)畫(huà)、行情、視頻、錄像信號(hào)等各種信息的顯示屏幕。本次設(shè)計(jì)的全稱(chēng)為16x32的LED點(diǎn)陣顯示牌。本文介紹了采用89C51單片機(jī)作為主要控制模塊的LED顯示牌的動(dòng)態(tài)設(shè)計(jì)。通過(guò)該芯片控制一個(gè)行驅(qū)動(dòng)74LS154和列驅(qū)動(dòng)器74HC595來(lái)驅(qū)動(dòng)顯示

2、屏顯示，使用單片機(jī)匯編語(yǔ)言進(jìn)行編程，使其能夠顯示文字和單色圖像。本文將介紹該方案的硬件設(shè)計(jì)思路，硬件電路各個(gè)部分的功能，原理以及程序設(shè)計(jì)等。關(guān)鍵詞：LED點(diǎn)陣顯示屏；STC12C5A60S2；74HC595；74LS154III目錄目錄摘要摘要..................................................................................................

3、......................................I緒論緒論........................................................................................................................................1第1章前言前言.................................

4、.......................................................................................21.11.1LEDLED電子顯示屏概述電子顯示屏概述................................................................................................21.1.1LED的

5、簡(jiǎn)介....................................................21.1.2點(diǎn)陣的概述...................................................2第2章系統(tǒng)的整體設(shè)計(jì)方案系統(tǒng)的整體設(shè)計(jì)方案..................................................................................

6、............32.12.1系統(tǒng)硬件方案系統(tǒng)硬件方案............................................................................................................32.2.1系統(tǒng)的整體電路框架...........................................32.2.2系統(tǒng)硬件設(shè)計(jì)實(shí)物圖........

7、...................................42.22.2系統(tǒng)軟件方案系統(tǒng)軟件方案............................................................................................................4第3章系統(tǒng)的硬件設(shè)計(jì)系統(tǒng)的硬件設(shè)計(jì)........................................

8、..............................................................53.13.1單片機(jī)最小系統(tǒng)及外圍電路單片機(jī)最小系統(tǒng)及外圍電路....................................................................................53.1.1單片機(jī)STC12C5A60S2......................

9、.....................53.1.2單片機(jī)最小系統(tǒng)...............................................73.23.2顯示部分顯示部分....................................................................................................................93.2.18X

10、8點(diǎn)陣單元..................................................93.33.3驅(qū)動(dòng)部分驅(qū)動(dòng)部分..................................................................................................................10103.3.1移位寄存器74HC595...............

11、............................103.3.2列驅(qū)動(dòng)電路..................................................123.3.3譯碼器74HC154...............................................133.3.4電流放大電路................................................133.3

12、.5行驅(qū)動(dòng)電路..................................................14第四章第四章系統(tǒng)軟件設(shè)計(jì)系統(tǒng)軟件設(shè)計(jì)......................................................................................................16164.14.1系統(tǒng)軟件設(shè)計(jì)的基本思路系統(tǒng)軟件設(shè)計(jì)的基本思路.........

13、...........................................................................16164.1.1字模生成及其軟件............................................164.24.2程序流程圖程序流程圖..................................................................

14、............................................17174.2.1總流程......................................................174.2.2靜態(tài)顯示流程................................................174.2.3動(dòng)態(tài)顯示流程....................................

15、............184.34.3單片機(jī)與計(jì)算機(jī)通訊單片機(jī)與計(jì)算機(jī)通訊..............................................................................................2020第五章第五章調(diào)試及性能分析調(diào)試及性能分析................................................................

16、....................................2121第六章第六章總結(jié)總結(jié)........................................................................................................................2222致謝致謝..........................................