电子万年历设计：单片机控制与显示技术应用

oming of the information age, various types of small intelligent household appliances have emerged in our daily lives. Calendars are indispensable daily necessities for people. However, conventional calendars are made of paper, inconvenient to use, and have a short lifespan. The electronic perpetual calendar adopts intelligent electronic control and display technology, improving the shortcomings of paper calendars. This design is based on the AT89S52 microcontroller as the core, forming a microcontroller control circuit. The AT89S52 is a low-voltage, high-performance CMOS 8-bit controller with 8K bytes of flash programmable erasable read-only memory (PEROM). This device is manufactured using ATMEL non-volatile memory manufacturing technology and is compatible with industrial standard 80C51 and 80C52 instruction sets and output pins. In the digital clock circuit based on the microcontroller system, in addition to the basic microcontroller system and peripheral circuits, external control and display devices are also needed. This circuit is primarily designed around the AT89S52 microcontroller, which analyzes and processes information through the microcontroller to control peripheral devices. The system consists of a reset module, clock module, and display module, and later expanded to include modules for calendar and week display. Keywords: electronic perpetual calendar, microcontroller, clock chip.