基于89C51单片机的汉字处理系统设计

he design of the production of the United States ATMEL Corporation AT89C51 single-chip 40 feet at the core, introducing a control system for electronic display LED dot matrix dynamic design and development process. The chip is controlled through a 74ls154 row drive and two 74hc595 line drive to drive the display shows. The electronic screen display of Chinese characters can achieve a full-screen can display Chinese characters in line with national standards, the four 8 × 8 dot matrix LED display module to form a 16 × 16 dot matrix display mode. Show that use dynamic display, making graphics or text can stationary, rolling and other displays. The article detailed the hardware LED dot matrix display design, the various parts of the hardware circuit of the function and principles of software programming, and the use of descriptions. Single-chip process control system using C language for editing single-chip, by programming the corresponding control points of the display LED anode and negative extreme level, you can control the brightness of the display points out.