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微機(jī)原理與單片機(jī)技術(shù)實(shí)踐課程設(shè)計(jì)-基于at89c52的1664led點(diǎn)陣的設(shè)計(jì)(已修改)

2024-11-26 01:49 本頁(yè)面
 

【正文】 韶 關(guān) 學(xué) 院 課 程 設(shè) 計(jì) 課程 設(shè)計(jì) 題目 : 微機(jī)原理與單片機(jī)技術(shù)實(shí)踐課程設(shè)計(jì) —— 基于 AT89C52的 16*64LED點(diǎn)陣 的設(shè)計(jì) 學(xué)生姓名: 學(xué) 號(hào): 院(系): 物理與機(jī)電工程學(xué)院自動(dòng)化系 專 業(yè): 自動(dòng)化 班 級(jí) : 2020 級(jí) 本科 1 班 指導(dǎo)教師姓名及職稱: 起止時(shí)間: 2020 年 3 月至 2020 年 5 月 基于 AT89C52 的 16*64LED 點(diǎn)陣 的設(shè)計(jì) 摘 要 : LED是指發(fā)光二極管,在某些半導(dǎo)體的 PN結(jié)中,注入的少數(shù)載流子與多數(shù)載流子復(fù)合時(shí)會(huì)把多余的能量以光的形式釋放出來(lái),從而把電能 直接轉(zhuǎn)換為光能。 PN結(jié)加反向電壓,少數(shù)載流子難以注入,故不發(fā)光。這種利用注入式點(diǎn)知發(fā)光原理制作的二極管叫發(fā)光二極管,簡(jiǎn)稱 LED。由于電子顯示屏制作簡(jiǎn)單,安裝方便,被廣泛應(yīng)用于各種公共場(chǎng)合,如公交汽車的報(bào)站器、廣告屏以及公告牌等等。介紹的 LED點(diǎn)陣電子顯示屏,其功能有固定漢字、字母、數(shù)字的顯示;平行左移、右移;固定信息的循環(huán)顯示;顯示屏的亮度連續(xù)可調(diào);時(shí)間的顯示和上位機(jī)對(duì)顯示內(nèi)容可修改的功能 隨著 LED顯示屏在廣告?zhèn)髅筋I(lǐng)域逐漸嶄露頭角,其控制系統(tǒng)也如雨后春筍,層出不窮。由于他的控制系統(tǒng)均是基于嵌入式處理器開發(fā) ,所以單片機(jī)在其中也占有一席之地。但是,由于 LED顯示屏控制較復(fù)雜,特別是對(duì)于顯示特殊效果,如循環(huán)移動(dòng)、覆蓋霓虹燈效果,要求處理器運(yùn)算速度快、執(zhí)行效率高, 關(guān)鍵詞 : AT89C52 74HC154(行驅(qū)動(dòng)器) 74HC595(列驅(qū)動(dòng)器) 16*64點(diǎn)陣 LED Based on AT89C52 the 16 * 64 LED dot matrix design Pick to: LED refers to lightemitting diodes that in some of the semiconductor PN junction, injection of minority carriers and majority carrier will take extra energy pound in the form of light energy released, which directly convert light energy. PN junction, minority carriers with reverse voltage to infuse, reason not to shine. This kind of use between points made luminous principle known as lightemitting diodes (leds), called diode LED. Because electronic display screen making simple, convenient installation, widely applied in all kinds of public occasions, such as the transit buses stops device, advertising screen and bulletin boards, etc. Introduction of LED dot matrix electronic display screen, its function has the fixed characters, letters, and digital display。 Parallel moves left, right shift。 Fixed information circulation display。 Screen brightness continuous adjustable。 Time displays and PC for display content can be modified to function As the LED display in advertising media field, the control system of upanding also have mushroomed, emerge in endlessly. Because of his control system based on embedded processors are developed, so microputer in which also occupies a place. However, because the LED display control is more plex, especially for show special effects, such as cycle mobile, covering the neon effect, request a fast calculation speed, execution processor of high efficiency, Keywords: AT89C52 74HC154 (line drive) 74HC595 (column drive) 16 * 64 lattice LED 目 錄 1 系統(tǒng)設(shè)計(jì)總述 ???????????????????????? (1) 設(shè)計(jì)任務(wù)及要求???????????????????????? (1) 方案比較與確定???????????????????????? (2) 2 1 6 * 6 4 點(diǎn) 陣 原 理 ? ? ? ? ? ? ? ? ? ? ? ? ( 3 ) 系統(tǒng)的主要結(jié)構(gòu) ???????????? ?? ?????????? (4) 3 系統(tǒng)的硬件設(shè)計(jì) ?????????????????????? (5) 3. 1 單片機(jī)控制電路 ???????????? ?????? ? ? ??? (5) 、 16*64 點(diǎn)陣顯示屏設(shè)計(jì) ?????? ????????? ???????? (6) LED點(diǎn)陣顯示器的掃描驅(qū)動(dòng) ?????? ? ?????? ????? (8) 、行驅(qū)動(dòng)電路 ????????????????????? (8) 、列驅(qū)動(dòng)電路 ???? ? ??????? ???? ????? ???? ( 9) 4 系統(tǒng)的軟件設(shè)計(jì) ??? ?? ??????????? ???????? (11) 顯示驅(qū)動(dòng)程序 ? ? ? ? ? ? ?????? ???????????? (11) 系統(tǒng)主程序 ???? ?????????????????????? (11) 5 硬件調(diào)試及性能 ?????? ???? ? ??????? ?????? (15) 開發(fā)環(huán)境介紹 ? ?????????????? ???? ?????? ( 15) 理論性能分析 ??? ?? ????? ?? ? ?? ????????? ( 15) 5.系統(tǒng)調(diào)試??????????????????????????( 15) 致謝 ?????????????????????????????? (17) 參考
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