外文翻译--基于AT89C51单片机设计的电子万年历（适用于毕业论文外文翻译+中英文对照）.doc

With the improvement of peoples living standard and life rhythm accelerate, the time requirements of increasingly high, precision digital timing consumption demand is increasing. The production of electronic calendar has many kinds, general to study of multi-function electronic calendar, the calendar in addition to the original display time, date and other basic functions, also has the alarm, alarm and other functions. Business production of electronic calendar from the quality, price, and practical considerations, constantly improve the design of the electronic perpetual calendar, making it more with the market. The design for the software, hardware with a combination of a set of design. In software design, the hardware part should have relevant knowledge, which helps to design a deeper understanding, contribute to software design. Basic to understand some of the main devices of the basic functions and role. In addition to using integrated clock chip, and adopts the scheme of MCU, using AT89series single-chip microcomputer made perpetual calendar circuit, use a combination of hardware and software methods, control of LED digital tube output, are used to show the year, month, day, hours, minutes and seconds, the main point is: the hardware circuit is simple, the installation convenient and easy to realize, the software design is unique, reliable. AT89C51 is offered by the ATMEL a small microcontroller. 95 years in China market. Its main characteristics is the Flash memory technology, reduces the manufacturing cost of the hardware, software, fully compatible with the MCS-51, can very quickly by the Chinese majority of user acceptance. This paper introduces the design of the electronic perpetual calendar based on AT89C51. 1 design schemes This article proposed one kind based on the AT89C51MCU calendar design, the program to AT89C51single-chip microcomputer as a controlling core, and the clock chip DS1302, keyboard, LED display modules and hardware system. In the har