外文翻譯--基于at89c51單片機的led顯示控制系統-單片機(參考版)
2025-05-17 07:29本頁面
【正文】 The slave mainly implement display of LED dot matrix display screen This was controlled by SCM. Chinese character display is 32 32 dot matrix model, and to achieve realtime screen display changes, and have to display the current time and date functions. The design of LED dot matrix display control system has a simple circuit, stability, low power consumption, long life, easy to display characteristics, and include the LED display basic principles and procedures. As long as the microcontroller I/O interface is expanded, and increase the number of LED dot matrix and related chips, you can design a larger area and more tricks of the LED display. This article has some reference value of theory and practice. As the core control unit of the system, that is AT89C52, has lower frequency, in the future, in order to achieve LED video display in real time, and the display image can be pressed, which will increase the burden on the system. We can take advantage of highspeed DSP as the core control unit, and solve the above mentioned problems. 。 Power system is responsible for transforming input voltage an d current into voltage and current which the screen needs. LED dot matrix display extracted display character font through PC, and sent to the microcontroller, then displayed in the dot matrix screen, which mainly used for display of indoor and outdoor characters. LED dot matrix display can be divided into graphic display, image display and video display by displayed content. Compared with the image display, the characteristics of graphic display is no difference in gray color whether it is monochrome or color display. Therefore, graphic display also fails to reflect the richness of color, and video display can not only show exercise, clear and fullcolor images, but also show television and puter signals. Although there are some differences between the three, but the most basic principles are similar, II. System Overall Structure Design Single Chip Microputer (SCM) models were selected according to the target, function, reliability, cost, accuracy and speed of the control system. According to the actual situation of the subject, the choice of SCM models mainly considered from the following two aspects: First, SCM has strong antiinterference ability。s living environment. LED lights can be seen in the large shopping malls, railway station, docks, underground station, and a variety of management window and so on. LED business has bee a fastgrowing new industry, a huge market space and bright prospects. The text, pictures, animation and video are displayed by LED’s light, and content can be changed. Some ponents are the display devices of the modular structure, and which usually consists of a display module, control system and power 6 system. The display module is constituted by the lattice structure which consists of LED, and is responsible for lightemitting display。本文提供了一些理論和實踐的參考價值。 LED點陣的設計顯示控制系統具有電路簡單、穩(wěn)定、低功率消耗、壽命長、易于顯示等 特點。 總結 LED 顯示系統的設計采用了主機和從屬結構、主機電腦 ， 供給從屬電腦顯示器上系統通過串行通信接口 ， 它可以實現字符串修改、展示模式設置 ， 時間設置和其他功能 ； 單片機控制從屬結構為主結構顯示 LED 點陣顯示屏。第二列數據讀取程序延遲后結束了 ， 下一個行是封閉的 ， 所以第二欄里的數據也是如此顯示 ， 等等 。在控制 完成后 ， 將會 把 顯示的數據轉移到 8255 上，一排 一排的數據輸 入 ， 每個第一排的信號控制下一
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