【正文】
rough this chip actuates the display monitor electronic display monitor may demonstrate each kind of language or the monochrome picture, the entire screen can demonstrate 2 Chinese characters, use 8 88 lattice LED demonstration module to pose 1632 the lattice demonstration demonstration uses the dynamic demonstration, causes the graph or the writing can realize static, moves in the emigration and so on many kinds of display the article in detail introduced the LED lattice demonstration hardware design mentality, hardware electric circuit each part of function and the principle, the corresponding software programming, as well as operating instructions and so on. SCM control system using microcontroller C language program for editing, the corresponding LED anode and cathode terminal programmed to control the level of each display point, you can effectively control each display point of light off. The dot matrix display data characters can prepare themselves (ie direct dot drawing), can also be extracted from the standard font. LED display with its flexible fabric, show stable, low power consumption, long service life, mature technology, low cost, etc in the station, securities, sports venues, the traffic trunk road, and various kinds of indoor/outdoor display of information release, public welfare propaganda, environmental parameters in realtime, major events countdown, etc widely used. The practice has proved that the system displays error is small, stable performance, reasonable structure, strong expansion capability. Keywords: AT89C51 monolithic integrated circuit。 關鍵詞 : AT89C51 單片機; LED; 點陣顯示; C 語言。所顯示字符的點陣數(shù)據(jù)可以自行編寫,也可從標準字庫中提取。文中介紹了 LED 點陣顯示的硬件設計思路、硬件電路各個部分的功能及原理、相應軟件的程序設計,以及使用說明等。全屏能顯示 2個漢字,采用 8塊 8 8點陣 LED 顯示模塊來組成 16 32點陣顯示模式。 1 摘要 本設計是一 16 32點陣 LED 電子顯示屏的設計。錯誤 !未指定書簽。 1 學號 : 1202172021 16X32點陣顯示屏畢業(yè)論文 學院名稱: 物理與電子工程學院 專業(yè)名稱: 電子信息工程技術 年級班別: 10級電子 姓 名: 指導教師: 2021年 5月 錯誤 !未指定書簽。整機以單片機 AT89C51為核心,介紹 了以它為控制系統(tǒng)的 LED 點陣電子顯示屏的動態(tài)設計和開發(fā)過程。顯示采用動態(tài)顯示,使得圖形或文字能夠實現(xiàn)靜止、移入移出等多種顯示方式。 單片機控制系統(tǒng)程序采用單片機 C 語言進行編輯,通過編程控制各顯示點對應 LED陽極和陰極端的電平,就可以有效的控制各顯示點的亮滅。 LED 顯示 以其組構方式靈活、顯示穩(wěn)定、功耗低、壽命長、技術成熟、成本低廉等特點在車站、證券所、運動場館、交通干道及各種室內/外顯示場合的信息發(fā)布,公益宣傳,環(huán)境參數(shù)實時,重大活動倒計時等等得到廣泛的應用。 錯誤 !未指定書簽。 LED。 Dynamic demonstration。 3 目錄 第 1 章 緒 論 .................................................................................................... 1 設計課題背景 及意義 ....................................................................................................... 1 設計的主要內容 ............................................................................................................... 2 第 2 章 設計框圖及介紹 .................................................................................. 3 第 3 章 硬件設計 .............................................................................................. 4 電源電路 ........................................................................................................................... 4 復位電路 .......................................................................................................................................................... 4 單片機應用系統(tǒng) ............................................................................................................... 5 LED 點陣屏的設計 .......................................................................................................... 5 LED 點陣顯示模塊的掃描 ....................................................................................... 5 列驅動電路 .........................................................................................................