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

摘要

—This paper introduces display design processabout hardware and software based on AT89C52 single chipmicrocomputer. We use a simple external circuit to controlthe display screen, which size is 32 × 192. The display screenalso can display the size of the six 32 × 32 dot matrixChinese characters by a dynamic scan mode, and can bedivided into two small display screen, which can displaytwenty-four Chinese characters whose size is 16×16. We canmodify the code to change the content of the display,subtitles can achieve scrolling function and the scroll speedcan be adjusted according to requirements, subtitles canalso achieve pause function. The Chinese character codestored in external data memory, the capacity of datamemory is expanded according to the requirements ofChinese characters we want to show. This display screen hasadvantages of small volume, few hardware and simplecircuit structure.