【正文】 in a modified industrial control software source code, if the original programming staff due to the change of work and leave, it must be the same as other persons or novices were modifications of the source program, so it is quite difficult. General purpose industrial automation configuration software for solving the practical engineering problems provides a brand new method, because it can well solve the traditional industrial control software of the problems, so that the user can according to their own control object and control the purpose of arbitrary configuration, the pletion of the final automation control engineering. First through the NRF905 wireless transmission module, the data acquisition circuit transmits the data to a wireless transmitting and receiving module, a wireless transmission module through the MAX232and puter implementation of full duplex serial munication, singlechip puter and automatic control is achieved through the aim of agricultural greenhouses. Because each time transmission of 2 bytes,8 bit binary value, so a serial port can transfer a maximum of 255data, because the ADC0809 is8 bits, the maximum value is 255, so the collected data is transmitted directly, in configuration software is set to return for6bytes, not byte is 8, the maximum value of 255, then a 6 data set of variables, each variable corresponding to a unit, the unit number is represented through the serial port into a data configuration. Single chip AT89C51 Single chip microputer is widely used in business: such as a modem, motor control system, airconditioning control system, engine and some other fields. The single chip puter speed processing speed and enhanced peripheral equipment collection makes them suitable for the high speed event applications. However, these key applications also require these MCS highly reliable. Robust test environment and used to validate these both in ponent level or system level chip suitable tool environment to ensure the high reliability and low market risk. Intel platform engineering department in the development of an object oriented is used to verify its AT89C51 car SCM multi linear test environment. This goal is not 西昌學(xué)院畢業(yè)論文（設(shè)計(jì)） only to provide a robust AT89C51 automobile SCM test environment, and develop a can be easily extended and repeated used to validate several other future chip. Development of the environment AT89C51 connection. This paper discusses the test environment design and principle, it and all kinds of hardware, software environment ponent interaction, and how to use AT89C51. INTRODUCTION 8 AT89C51CHMOS process MCU is designed for processing high speed calculation and fast input / output. MCS51 MCU typical application is high speed event control system. Commercial application of motor control system, includes a modem, printer, copy machine, airconditioning control system, a disk drive and medical equipment. Automobile industry based on MCS51 single chip microputer control system of engine, suspension and antilock brake system. AT89C51 is particularly well applicable to profit from its processing speed and enhanced onchip peripheral functions, such as: vehicle dynamic control, dynamic vehicle suspension, antilock brake and stability control application. As a result of these critical applications, the market needs a reliable with low interference potential response of the cost effectiveness controller, service time and event driven in realtime applications that require integrated peripheral capacity in a single package, has higher average power in the central processor. Operating with unpredictable equipment economic and legal risk is high. Once enter the market, especially the mission critical applications such as in the autopilot or antilock brake system, the error will be prohibited by the financial. The redesign of the costs can be as high as 500K dollars, if the product family to enjoy the same core or peripheral design flaws, costs will be higher. In addition, replacement parts field is extremely expensive, because the equipment is used to put the module typically welded into an overall value than each ponent high several times. To mitigate these problems, in the worst environment and voltage conditions on the SCM in ponent level or system level testing is required. The Intel Chandler Platform Engineering Group offers a variety of singlechip processor and system validation. The system of authentication processing can be broken down into three 西昌學(xué)院畢業(yè)論文（設(shè)計(jì)） main sections. System type and application demand decided to apparatus to perform a test type. AT89C51provided with the following standard function: 4K bytes FLASH flash memory,128 MB internal RAM,32I/O line,2of 16timer / counter, a5vec。 Configuration software configuration work Along with the industrial automation level rise quickly, the wide application of puter in the industrial fields of industrial automation, the people of the increasingly high demand, a wide variety of control devices and process monitoring devices used in the fields of industry, the traditional industrial control software has been unable to meet the various needs of users. In the development of the traditional industrial control software, when industrial controlled object once the change, must modify the control system of the source, resulting in its long development cycle。數(shù)據(jù)查詢 89C51 單片機(jī)用數(shù)據(jù)查詢方式來檢測(cè)一個(gè)寫周期是否結(jié)束，在一個(gè)寫周期中，如需要讀取最后寫入的那個(gè)字節(jié)，則讀出的數(shù)據(jù)的最高位（ ）是原來寫入字節(jié)的最高位的反碼。每個(gè)字節(jié)寫入周期是自身定時(shí)的，通常約為 。每對(duì) Flash 存儲(chǔ)陣列寫入一個(gè)字節(jié)或每寫入一個(gè)程序加密位，加上一個(gè) ALE/PROG 編程脈沖。激活相應(yīng)的 控制信號(hào)。 編程方 法 編程前，設(shè)置好地址、數(shù)據(jù)及控制信號(hào)，編程單元的地址加在 P1 口和 P2 口的 — （ 11 位地址范圍為 0000H—— 0FFFH），數(shù)據(jù)從 P0口輸入，引腳 、 和 、 的電平設(shè)置見表 6， PSEB 為低電平， RST保持高電平， EA/Vpp 引腳是編程電源的輸入端，按要求加上編程電壓， ALE/PROG引腳輸入編程脈沖（負(fù)脈沖）。推出掉電模式的唯一方法是硬件復(fù)位，復(fù)位后將重新定義全部特殊功能寄存器但不改變 RAM 中的內(nèi)容，在 Vcc 恢復(fù)到正常工作電平前，復(fù)位應(yīng)無效，且必須保持一定時(shí)間以使振蕩器重啟動(dòng)并穩(wěn)定工作。掉電方式保存 RAM 中的