基于STC89C51单片机的智能玩具——算术闹钟.doc

摘 要 随着产业结构的不断调整、生产工艺的飞速发展、人们生活水平的不断提高及家用电器的逐渐普及市场对定时控制系统的需求越来越大如定时自动报警、定时自动打铃、定时开关烘箱、定时通断动力设备以及各种电气的定时启动等都属于定时控制系统定时控制系统的实现方法很多。 本文介绍了基于STC89C51单片机的智能玩具——算术闹钟的设计详细叙述了系统硬件、软件的具体实现过程。本文在硬件、软件设计上均采用模块化的方法使得在设计和调试方面取得很大的方便，本系统在原有闹钟的基础上增加了一个创新功能，在闹钟响起时出一个简单的算数题，给使用者回答。如果没有回答正确闹钟将继续发出声音，从而考验被闹铃者是否已经完全脱离了睡意。在论文中本文重点阐述了数字钟硬件中MCU模块、按键模块、显示模块等相关模块的模块化设计及制作。软件同样采用模块化的设计包括中断 模块、时间调整模块等设计并采用简单流通性强的C语言编写实现。本设计实现了年、月、日及时、分、秒的显示和时间修改的功能。通过对比实际的时钟查找出误差的来源确定调整误差的方法尽可能的减少误差使得系统可以达到实际数字钟的允许误差范围内。 关键词：STC89C52 时钟 模块 Abstract With the continuous adjustment of industrial structure, production process of rapid development, peoples living standards continue to improve and household appliances popularization of the market timing control system needs more and more as the timing of the automatic alarm, automatic timing, timing switch the oven bell, timing on-off power equipment and various electrical timing startup belong to the timing control system timing control system realization method of a lot of. This paper introduces the design of digital clock chip STC89C51 detailed describes the realization process of system hardware, software based on. Based on the hardware, software design using modular method makes great convenience in design and debugging. This paper focuses on the digital clock hardware MCU module, key module, display module design and production of the software module and other module as modular design includes the interrupt module, time adjust module design and the use of C language simple and strong liquidity for realistic now. Design and implementation of the year, month, day, time, minutes and seconds, display and modify the function of. By comparing the actual clock to find out the source of the error determination method of adjusting error as much as possible to reduce the error of the system can achieve a practical digital clock within allowable error. Keywords: STC89C52 clock module 目录 摘 要 1 Abstract 2 第一章 绪论 5 1.1 本课题国外研究进展 5 1.2 本课题国外研究进展 5 1.3 课题背景 6 1.4 研究意义 6 1.5