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  单片机广泛应用于商业：诸如调制解调器，电动机控制系统，空调控制系统，发动机和其他一些领域。这些单片机的高速处理速度和增强型外围设备集合使得它们适合于这种高速应用场合。然而，这些关键应用领域也要求这些单片机高度可靠。健壮的测试环境和用于验证这些无论在元部件层次还是系统级别的单片机的合适的工具环境保证了高可靠性和低市场风险。Intel 平台工程部门开发了一种面向对象的用于验证它的AT89C51单片机多线性测试环境。这种环境的目标不仅是为AT89C51单片机一种健壮测试环境，而且开发一种能够容易扩展并重复用来验证其他几种将来的单片机。开发的这种环境连接了AT89C51。本文讨论了这种测试环境的设计和原理，它的和各种硬件、软件环境部件的交互性，以及如何使用AT89C51。
  1 介绍
  8位AT89C51 CHMOS工艺单片机被设计用于处理高速计算和快速输入/输出。MCS-51单片机典型的应用是高速控制系统。商业应用包括调制解调器，电动机控制系统，打印机，影印机，空调控制系统，磁盘驱动器和医疗设备。把MCS-51单片机用于发动机控制系统，悬挂系统和反锁制动系统。AT89C51尤其很好适用于得益于它的处理速度和增强型片上外围功能集，诸如：动力控制，车辆动态悬挂，反锁制动和稳定性控制应用。由于这些决定性应用，市场需要一种可靠的具有低干扰潜伏响应The monolithic integrated circuit widely applies to the trade: Such asmodem, motor control system, air conditioning control system, motorcar engine and other some domains. These monolithic integratedcircuits high speed processing speeds and the enhancement auxiliaryequipment set causes them to suit to this kind of high speed eventapplication situation. However, these key application domains alsorequest these monolithic integrated circuits to be highly reliable.The vigorous and healthy test environment and uses in to confirm theseregardless of or the system rank monolithic integrated circuitappropriate tool environment has guaranteed the redundant reliabilityand the low market risk in the Yuan part level. The Intel platformengineering department object-oriented developed one kind to use in toconfirm its AT89C51 automobile monolithic integrated circuitmultilinear form test environment. This kind of environment goal notonly is the AT89C51 automobile monolithic integrated circuit providesone kind of vigorous and healthy test environment, moreover willdevelop one kind to be able to be easy to expand and the repetitionuses for to confirm other several kind of future the monolithicintegrated circuit. Development this kind of environment has connectedAT89C51. This article discussed this kind of test environment designand the principle, it and each kind of hardware, does the softwareenvironment part interaction, how as well as use AT89C51. 1 introduction 8 AT89C51 the CHMOS craft monolithic integrated circuit isdesigned uses in to process the high speed computation and the fastinput/output. The MCS-51 monolithic integrated circuit modelapplication is the high speed event control system. Commercial useincluding modem, motor control system, printer, photogravure press,air conditioning control system, disk driver and medical equipment.The automobile industry uses in the engine control system the MCS-51monolithic integrated circuit, the suspension system and locks on theother side the braking system. AT89C51 especially very good issuitable from benefits from on its processing speed and theenhancement piece the periphery function collection, such as: Theautomobile power control, the vehicles dynamic are hanging, lock onthe other side apply the brake with the stable control application. Asa result of these decisive applications, the market requirement onekind reliable has lowly disturbs the expense - potency controllerwhich the ambush responds, the service massive time and the eventactuates the integrated periphery ability which needs in the real-timeapplication, has outdoes the average processing power in the soleroutine package the central processor. Has the equipment economy andthe legal risk which the operation cannot be forecast are very high.Once enters the market, especially the duty decisiveness applicationsuch as autopilot or locks on the other side the braking system, willbe wrong will be in the financial resource forbids. The redesignexpense may reach as high as 500K US dollar的费用-效能控制器，服务大量时间和驱动的在实时应用需要的集成外围的能力，具有在单一程序包中高出平均处理功率的中央处理器。拥有作不可预测的设备的经济和法律风险是很高的。一旦进入市场，尤其任务决定性应用诸如自动驾驶仪或反锁制动系统，错误将是财力上所禁止的。重新设计的费用可以高达500K美元

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