ABSTRACT
This design uses AT89S52 MCU as a main controller, and depends on a simple external circuit to drive 16×64 the lattice LED display. By using its own powerful functions, it is easy to accomplish the MCU and PC for internal storage, data transmission equipment ,and it also can be used conveniently to show a variety of content changes. The other dot matrix display is widely used in hospitals, airports, banks and other public places. Therefore, the design has a strong practical application.
The LED Display dynamic scan can show the way at the same time six 16 × 16 dot matrix Chinese characters SPI used in the design of the interface standard GB2312 character, to support all the GB2312 standard ASCII characters and characters of the show. This article from the start LED display principle, elaborated on the LED display dynamic process, as well as hardware circuit and software .