【作者】 杨漫；

【导师】 王成华；

【作者基本信息】 南京航空航天大学 ， 电路与系统， 2009， 硕士

【摘要】 当前,各种电子测量仪器种类繁多,各有特点,且更新换代较快,许多仪器开发人员面临着重复开发的问题,这一问题不仅延长了研发周期,而且大大提高了开发成本。本文旨在研究一种基于新架构的通用测量仪器开发系统的实现方法,本着“变专用为通用”的设计理念,解决仪器开发中的问题。随着现代测量对电子仪器精度、速度、智能化等各方面要求的提高,传统的基于单片机+DSP的测量仪器设计方法存在着很大的性能上的瓶颈。本文通过对传统技术方案以及本项目具体功能和指标的分析,提出了基于嵌入式技术的设计方案,采用SAMSUNG公司的ARM9芯片S3C2410作为主控芯片,其强大的控制性能和灵活的接口技术,使得系统的控制变得简单,系统的编程也大大简化。此外,系统还扩展出USB、LCD等各种常用的外设资源,增强其通用性。除了提供上述的硬件系统之外,本文还提供了一整套方便移植、易裁剪、多功能的软件系统。本文通过Linux操作系统进行任务调度,并采用Qt/embedded结合符合仪器特点的算法进行应用软件的设计,包括频域、时域波形处理,键盘、菜单处理等。开发者通过简单的组合、修改就可设计出符合自己要求的仪器软件。本文最后介绍了使用此开发系统设计的一款高性能的数字存储示波器,经检测,此示波器性能稳定且功能强大,现已投入生产,从而证明了本系统的可用性。更多还原

【Abstract】 Nowadays, along with the techniques of Electronic Test Instrument developed, a lot of problems occur, such as re-development for the multiplicity. This paper aims to study a design and technique of the universal electronic test and measure instrument based on a new architecture. The design ideology is from the TSU idea that the Transformation from Special application to Universal is appreciated.According to the design, the instrument system could be endowed with more functions aiming to several kinds of universal instruments and devices. After the study of the traditional design method based on the single chip and DSP, This paper adopts the method of the embedded system design, based on the basic functions and characteristic, and gives the project’s requirement for the embedded operation system, summarized and compared the characteristic and new developments of the EOS for the ARM processor. The paper uses S3C2410 with ARM9 core produced by Samsung Corporation as the processor. It makes the control simple, owning to its strong control ability and flexible connectors. Besides this, a lot of common resources such as USB, LCD and so on are designed in the system.Besides the hardware resources, we provide the whole software resources, including embedded Linux as the EOS and Qt/embedded for the application software, the user can develop the software they needed through composing these software resources and making a little change.To prove the usability of this system,in the end of this paper, We introduce a DSO with a high performance designed by using this system.更多还原