基于单片机的定时器设计

文档编号:ZD652    文档字数:21374,页数:53

 摘 要
 
 随着电子技术的迅速发展，特别是随大规模集成电路出现，给人类生活带来了根本性的改变。由其是单片机技术的应用产品已经走进了千家万户。
 作为单片机技术应用之一的定时控制器，在日常生活，工业场合甚至军事领域都有应用。
 本文主要介绍了单片机定时控制器的硬件设计过程。单片机作为主控器件，是整个系统的核心，它起到主要的控制作用；时钟芯片为系统提供一个数字钟，定时功能的实现也要依赖它；液晶模块为系统显示提供载体；按键部分采用独立式结构，主要用作调时和定时，也可用作功能选择；控制输出部分通过继电器的动作和发光二极管的亮灭，模拟机器的开和停。本文完成了对系统硬件电路制作、软件设计和调试过程的说明，系统最终实现分时段定时控制的功能。

关键词：单片机，时钟芯片，液晶模块，定时控制
Subject：Development of Time Controller Based on Single Chip Microprocessor
ABSTRACT

 Along with the electronic technology rapid development, appears of the large scale integrated circuit specially, these have made a big change on people’s living. Products including the technology application of the single chip microprocessor sets already entered every family.
 As one application of the single chip microprocessor technology, the time controller has been applied in the daily life, the industry situation and military field.
 This article introduced mainly the design process of the time controller composed by the single chip microprocessor. As the main control component, the single chip microprocessor is the core of the device and it plays the main control action. The clock chip provides a digital clock for the device and helps to realize the function of the timing control. The liquid crystal display is the carrier for the device system demonstrating. The keys use free standing structure. They mainly use as the timing and fixed time and use also as function choice. The control output simulates machine's opening and stops by relay's movement and the light emitter diode. This article has showed the process of the hardware manufacture, the software design and debugging. The function of the time controller is realized finally.
 
 KEY WORDS: single chip microprocessor, the clock chip, the liquid crystal display, timing controller
目 录

第1章 绪 论 1
1.1 课题开发背景 1
1.2 设计要求 1
第2章 单片机及液晶显示模块 3
2.1 单片机STC89C58RD+结构 3
2.1.1 引脚定义及功能 3
2.1.2 复位电路 6
2.2 液晶12232模块 7
2.2.1 引脚定义及功能说明 7
2.2.2 指令描述 8
2.2.3 LCD12232的写规则 11
2.2.4 LCD12232与单片机接口 11
第3章 硬件设计 13
3.1芯片及硬件模块 13
3.1.1 时钟芯片模块DS1302 13
3.1.2 液晶外部时钟模块 21
3.1.3 键盘接口电路 23
3.2系统设计思路 24
3.3硬件框图 25
3.4 系统功能说明 26
3.5系统硬件设计电路图 27
第4章 软件设计 29
4.1 软件设计的原则 29
4.2 系统功能模块图 29
4.3 程序流程图 30
第5章 制作与调试 34
5.1 硬件焊接 34
5.2 硬件调试 35
5.2.1 焊接调试 35
5.2.2 故障调试 35
5.2.3 功能调试 36
5.3 “伟福”调试软件 36
5.3.1 “伟福”的特点 36
5.3.2 “伟福”仿真软件的使用 36
5.3.3 “伟福”集成调试软件的界面 37
5.4综合调试 43
5.4.1 联机调试 43
5.4.2 脱机调试 44
结束语 46
附录 硬件实物图 47
致 谢 48
参考文献 49

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