【作者】 吴庆银；

【导师】 吕振辽；

【作者基本信息】 东北大学 ， 计算机软件与理论， 2009， 硕士

【摘要】 随着计算机技术的发展,嵌入式技术已成为计算机领域的一个重要组成部分。本文采用了嵌入式技术构建了一个用于测试安全计算机背部板卡的连接关系的测试系统。安全计算机主要用于像轨道交通等关键领域,需要极高的可靠性。由于其技术先进,在许多重要领域都有广泛的用途,目前我国的安全计算机的研制正在紧锣密鼓的进行,本文的测试系统就是为了能检测安全计算机的背部板卡而设计的。对于有许多接插件连接器的安全计算机背部,传统的人工对线测量的方式明显影响工作效率,而且容易出错等。因此非常有必要采用自动测试系统。于是,我们设计出一套基于ARM7的嵌入式系统作为控制中心进行测试。这样的系统成本低,操作方便,开发周期短,测得数据更准确。本文详细的介绍了基于ARM7微控制器LPC2214配合FPGA和数字接口电路,对安全计算机背部板卡进行测试的开发和实现过程。主要包括硬件的设计与实现和软件的设计与实现。在硬件电路设计中,以嵌入式处理器LPC2214为核心芯片,设计了电源电路、复位电路、系统时钟电路、串口电路、接口电路等。软件设计包含ARM程序设计、FPGA软件开发、以及后期的C++程序处理。最后,该测试系统可以直接用于实践中测试安全计算机板卡,其用测试结果可以直接生成网络标号来绘制原理图,并起到了很好的效果。更多还原

【Abstract】 With the development of computer technology, embedded technology has become an important field of computer components. In this paper, we use the embedded technology to build a teseting system for measuring the security computer’s planel circuit-board’s connetion relationship.Security computer is mainly used as the key areas of rail transportation and some other important situation, as high reliability it is. Because of its advanced technology, in many important areas it has a wide range of uses, our country now is very concern the development of the security computer research, and this thesis is to build a testing system can detect the security computer’s back panel circuit board.There are many connectors on the security computer’s back panel circuit board. On the line of the traditional manual way of measuring low down the working efficiency and it is easy to emerge error and so on. Therefore it is necessary to introduce an automatic testing system. Therefore, we designed a set of based on ARM7 embedded system as a control center for testing. The system is low-cost, easy to operate, measuring data accurately. And its development cycle is very short.This thesis describes in detail about based on ARM7 microcontroller LPC2214 with FPGA and digital interface circuit, the development and realization process of the testing system for the security computer’s back panel board. It mainly includes the design and implementation of hardware, software design and implementation. On the part of hardware circuit design, we introduce embedded processor LPC2214 as the core chip, and we also design power supply circuit, reset circuit, system clock circuit, the serial circuit, interface circuit and so on. On the part of software design, it refers to ARM software design, FPGA software development, and the latter to deal with C++ program.Finally, the testing system can be directly used for the practice of testing the security computer’s board, the use of test results can be generated directly to generate the EDA software’s network labels for schematic drawing, and has played a very good effect.更多还原