基于STC89C52单片机的实验平台开发设计.doc

摘 要 单片机是一种集成电路芯片，是采用超大规模集成电路技术把具有数据处理能力的中央处理器CPU随机存储器RAM、只读存储器ROM、多种I/O口和中断系统、定时器/计时器等功能（可能还包括显示驱动电路、脉宽调制电路、模拟多路转换器、A/D转换器等电路）集成到一块硅片上构成的一个小而完善的微型计算机系统，在工业控制领域的广泛应用。从上世纪80年代，由当时的4位、8位单片机，发展到现在的32位300M的高速单片机。 51单片机是对所有兼容Intel 8031指令系统的单片机的统称。该系列单片机的始祖是Intel的8031单片机，后来随着Flash rom技术的发展，8031单片机取得了长足的进展，成为应用最广泛的8位单片机之一，其代表型号是ATMEL公司的AT89系列，它广泛应用于工业测控系统之中。很多公司都有51系列的兼容机型推出，今后很长的一段时间内将占有大量市场。51单片机是基础入门的一个单片机，还是应用最广泛的一种。需要注意的是52系列的单片机一般不具备自编程能力。关键词： STC单片机，实验平台，数码管，流水灯 ABSTRACT SCM is an integrated circuit chip, is the use of VLSI technology with data processing capabilities of the central processing unit CPU random access memory RAM, read-only memory ROM, multiple I / O port and interrupt system, the timer / timer, etc. function (may also include a display driving circuit, the pulse width modulation circuit, the analog multiplexer, A / D converters, etc. circuit) integrated onto a silicon wafer consisting of a small micro-computer system and complete, in the industrial control field widely used. From the 1980s by the then 4, 8-bit microcontroller, to todays 32 300M high-speed microcontroller. 51 single for all compatible Intel 8031 ??microcontroller instruction set collectively. The series is Intels single-chip ancestor 8031, and later with Flash rom technology, 8031 has made considerable progress, to become the most widely used one 8-bit microcontroller, its representative model is ATMEL Corporation AT89 series, which widely used in industrial control systems. Many companies have launched 51 series compatibles, the future for a long period of time will occupy a large market. 51 is the basis for the entry of a single-chip microcontroller, or the most widely used one. Note that the 52 series of microcontrollers generally do not have self-programming capability. STC89C52 single-chip controller as the core, is a development of a small, easy to use, practical single-chip integrated experimental and training platform, which is currently the basis of comparison of the micro