文档介绍：摘要
嵌入式计算机系统的出现,是现代计算机发展史上的里程碑事件,嵌入式系统诞生于微型计算机时代,与通用计算机的发展道路完全不同,形成了独立的单芯片的技术发展道路。由于嵌入式系统的诞生,现代计算机领域中出现了通用计算机和嵌入式计算机的两大分支。不可兼顾的技术发展道路,形成了两大分支的独立发展道路:通用计算机按照高速,海量的技术发展;嵌入式计算机系统则为满足对象系统嵌入式智能化控制要求发展。由于独立的发展分工,20世纪末,现代计算机的两大分支都得到了迅猛的发展。
1978年Intel公司开发出比8086性能更出色的8088处理器,并成功将其销售给IBM全新个人计算机部门,使得8088成为全新热销的IBM PC的大脑。从8088开始,个人计算机的概念开始在全世界范围内发展起来。标志着一个新时代的开始。虽然处理器的发展速度非常迅猛,但是作为里程碑式的8088,仍然作为实验工具被使用。本文就是基于8088处理器的电子钟的开发。
本文利用Protel绘制原理图,使用微机原理仿真试验箱,利用系统提供的8253计数器/定时器,中断器8259,6个LED实现了电子钟的基本功能,在电子钟上显示时,分,秒,并具有设置时间,计时,闹钟的功能。使用汇编语言进行编程。
关键词: 8088处理器,电子钟,8253计数器/定时器,8259中断器
Abstract
The puter system`s appearance is a milestone in the history embeded system is born in the puter time. Its development is different from the develops the technique of the single chip. The embeded system makes puter development into two different branches. puter develops the technique of high speed and massive memory. Embeded system develops the technique to satisfy the development of the intellectualization control.
As a result of the development ,both of the branches have developed fast till 20th century.
In 1978 Intel Corporation developed 8088 processors. The 8088 processor is more superior than the 8086 processor. The Intel Corporation sold the 8088 processor to the PC department of IBM. Then the concept of PC started to develop all over the world. Even the development of processors is fast, the classical 8088 processor is still used in the experiments. This paper is about the development of eletron clock based on the 8088 processor.
This paper ueses Protel to draw the schematic diagram and uses the puter simulation texting box including the 8253 counter/timer,8259 interrupter and six LEDs to realize the basic function of electron clock. The electron clock can display the hour , the minute and the second. It can set the time and count .It can also have the function of alarm clock. This paper piling language to program.
Key words: electron clock, 8088 processor, 8253 c