Design And Implementation Of Controller Of LED Display Based On MCS-51

With the development of science and technology, LED electronic display screen is becoming more and more popular. It has become an indispensable part of life with high brightness, long life, low power consumption, stable and reliable work. LED display is lattice module or pixel unit formed by light-emitting diodes composed of large area display screen. It has been widely used, when we walk in the streets and lanes, we will figure it everywhere. For example, the crossroads of traffic lights, billboards, supermarkets, shopping malls in front of the display card, bank, airport waiting room, the stadium scoreboard are all used in LED display, In a short period of tens of year, The LED display is rapidly becoming the mainstream products in the field of flat panel display, and is also the current international advanced display one media.This thesis mainly described one-chip computer STC89C51control LED dot matrix and display Chinese characters of Intelligent Graphics. Firstly, the design is simple8×8LED dot matrix display control circuit and mainly in order to design with software and hardware, lay the foundation for the design of a16×16LED dot matrix display control circuit, In the design process Circuit design is completed first. Then the program design, the procedure is used C language. The circuit was simulated with Protues software. Then the generated HEX files are downloaded to the singlechip, observe the result of the experiment. After the success of simulation, according to the design principle diagram, designing the hardware of physical.The main content of the thesis:1. through the software program, realizing the singlechip control of LED dot matrix display screen, Control it to display graphics or words.2. Application of Protues software and keil software in the design of LED display, processing the simulation and system hardware and software in Protues ISIS.3. Through the schematic diagram of hardware, designing the implementation of LED display material, and downloading the program to the MCU, displaying graphics or words.