"基于51单片机的实时日历和时钟显示系统设计（2012毕业论文）"

The "Real-time Calendar and Clock Display System Design Based on 51 Series Microcontroller" is a high-quality project that explores the development of a real-time calendar and clock display system using the 51 series microcontroller. The system is capable of displaying the year, month, day, hour, minute, second, and day of the week information, with adjustable date and time functions. The design process encompasses both hardware and software components, with a comprehensive understanding of the theoretical foundations and peripheral extension knowledge of the microcontroller. The hardware section primarily consists of the AT89S52 microcontroller, LED display circuit, and time adjustment button circuit. The system utilizes LED displays to provide user-friendly operations and intuitive display effects. On the software side, the design includes clock programs, keyboard programs, and display programs. The software is developed in assembly language to maximize control over the microcontroller. To facilitate future expansions and modifications, a modular structure is adopted, ensuring a concise and clear logical relationship in program design, making it easier to implement time and date adjustment display functions. After completing the programming, the system undergoes debugging in wave software to ensure seamless functionality. Once confirmed to be error-free, the microcontroller is embedded in Proteus software for simulation. In summary, this design showcases the implementation of a real-time calendar and clock display system using the 51 series microcontroller. By integrating the hardware and software aspects, the system provides accurate timekeeping and easily adjustable dates and time displays.