Design of LED Display Control System Based on AT89C52 Single Chip Microcomputer

This paper introduces display design process about hardware and software based on AT89C52 single chip microcomputer. The authors use a simple external circuit to control the display screen, which size is 32×192. The display screen also can display the size of the six 32×32 dot matrix Chinese characters by a dynamic scan mode, and can be divided into two small display screen, which can display twenty-four Chinese characters whose size is 16×16. They can modify the code to change the content of the display, subtitles can achieve scrolling function and the scroll speed can be adjusted according to requirements, subtitles can also achieve pause function.