"基于51单片机的篮球记分牌设计：硬件与软件详解"

Abstract The electronic scoreboard based on the 51 single-chip microcontroller is designed to solve the accurate scoring and timing issues in basketball games. The single-chip microcontroller integrates the main computer functions on a single chip, making it a microcontroller that combines counting and multiple interfaces. It is widely used in intelligent products and industrial automation. The main task of this graduation project is to design a basketball game scoreboard that can accurately keep score and time during basketball games, including hardware design and software development. This device utilizes the low-power, high-performance CMOS 8-bit microcontroller - the AT89S52, to complete the functions of timing and scoring. With this device, the score can be modified and the time can be accurately displayed according to the actual situation. This paper details the design process of the system hardware and software. In hardware design, LED digital display, button control system design, and auxiliary function design are completed. In software design, function selection and countdown are implemented. The entire design process of implementing the basketball scoreboard functionality through a single-chip microcontroller is also described in this paper, with the program written in C language. The basketball scoreboard based on the single-chip microcontroller has a compact hardware structure, low cost, reliable operation, and can adapt to different basketball rules. It has certain practical value and competitiveness. Key words: AT89S52 single-chip microcontroller, LED digital display, 74HC373, C language, basketball scoreboard