新一代高速实时DSP—TMRS320C62x

介绍了ＴＩ公司的ＴＭＳ３２０Ｃ６２ｘ的推出背景及主要特点,介绍了其主要结构、软件的开发方法和应用领域,并人出了基于ＴＭＳ３２０Ｃ６２ｘ在多媒体通信系统中实现基低码率图象压缩算法的设想。     

TLC320AC01C AIC芯片在TMS320C54xDSP开发系统中应用

本文主要介绍ＴＬＣ３２０ＡＣ０１Ｃ ＡＩＣ的结构和功能,以及其在以ＤＳＰ为核心的系统中的应用和编程方法,简要地介绍了ＴＭＳ３２０Ｃ５４ｘ器件的功能和应用领域。     

基于TMS320C80的图形图象处理系统

概述了ＴＭＳ３２０Ｃ８０ＭＶＰ并行处理器的系统结构与主要特点，介绍了ＴＭＳ３２０Ｃ８０软件开发板ＳＤＢ的主要功能单元，最后给出了基于ＴＭＳ３２０Ｃ８０的图象处理产品的列表。     

TMS320C80在图像通信中的应用

介绍了多媒体视频处理器ＴＭＳ３２０Ｃ８０的系统结构和主要特征，给出了基于ＴＭＳ３２０Ｃ８０的视频图象压缩编解码器的原理框图，并讨论了ＴＭＳ３２０Ｃ８０在图象通信系统中的应用     

TMS320C54xDSP的流水线操作及编程应用

文章介绍ＴＭＳ３２０Ｃ５４ｘＤＳＰ流水线操作及其在实际编程中的应用，包括流水线的操作过程、延时、ＭＭＲ保护指令和实际编程中防止流水线冲突的检查方法。     

TMS320C54xDSP的流水线操作及编辑应用

文章介绍ＴＭＳ３２０Ｃ５４ｘＤＳＰ流水线操作及其在实际编程中的应用，包括流水线的操作过程，延时，ＭＭＲ保护指令和实际编程中防止流水线冲突的检查方法。     

TMS320C3X的汇编语言和C语言及混合编程技术

介绍ＴＭＳ３２０Ｃ３Ｘ的汇编语言特点和Ｃ语言开发ＴＭＳ３２０Ｃ３Ｘ数字信号处理器的过程,及ＴＭＳ３２０Ｃ３Ｘ的汇编语言和Ｃ语言的编程接口。     

基于TMS320C80的消息传输与控制

分析了数字信号处理器ＴＭＳ３２０Ｃ８０及运行于其上的多任务执行软件的应用特点，并详细地阐述了ＴＭＳ３２０Ｃ８０片内以及主从系统或多处理器系统中消息的传输和控制原理。ＴＭＳ３２０Ｃ８０主要应用于图像处理、二维和三维图形处理、虚拟现实图形处理和音频视频数据压缩等。     

数字语音编解码的一种DSP实现方法

本文针对ＩＴＵ Ｇ．７２８标准语音编解码器,提出了一种ＤＳＰ的实现方法。在简介Ｇ．７２８编解码和ＤＳＰ芯片ＴＭＳ３２０Ｃ５４１基础上,本文主要研究了ＣＥＬＰ（ＬＤ－ＣＥＬＰ）算法在ＴＭＳ３２０Ｃ５４１上的实现和实现此算法的一些关键技术,并给出了实际仿真结果。     

TMS320C6201数字信号处理器在图像处理中的应用

介绍了多处理单元数字信号处理器ＴＭＳ３２０Ｃ６２０１的硬件结构和软件资源,并且设计了一种基于ＴＭＳ３２０Ｃ６２０１的图像处理系统。     

基于GDB的ARM硬件调试系统的设计

远程调试是调试嵌入式系统的基本方式。GDB是一款被广泛使用的调试器,但是GDB的远程调试方案不能完全满足调试系统开发中的调试需求。文中介绍了一种利用ARM处理器硬件调试模块,扩展GDB远程调试功能的方案。并以ARM920T处理器为例,描述了该方案的设计与关键功能实现原理。     

An experiment in tool integration: The DDBG parallel and distributed debugger

This paper discusses the development of a debugging tool for parallel programs showing how the requirements posed by high-level tools for parallel program development have influenced the design of the debugging system since its early stages of development. We concentrate our attention upon the interfacing of the debugger with other tools of a parallel software engineering environment, namely a graphical programming language and a testing and debugging tool. This is illustrated with the results of our experimentation with the design and implementation of DDBG, a debugger for the PVM environment.     

多核DSP软件调试环境研究与设计

针对武器装备嵌入式系统向自主化、智能化、小型化、低功耗快速发展的趋势,介绍了装备研制对自主多核处理器及其软件调试环境的迫切需求,分析了嵌入式系统远程调试的基本原理和特点、JTAG标准和边界扫描技术。以自主同构8核数字信号处理器为目标平台,基于目标平台JTAG控制器之间的菊花链连接方式,提出了面向该目标平台的软件调试环境设计方案,讨论了USB接口仿真器软硬件设计和多线程调试代理软件设计等关键技术。实现的软件调试环境能够在调试主机上对目标平台进行指令级和源码级交叉调试,解决了目标平台缺乏配套软件调试手段的实际问题,为目标平台在武器装备上的推广应用提供了有力支撑,对其他面向多核处理器的调试环境设计具有参考价值。     

A qualitative study on debugging under an enterprise IDE

ContextModern enterprise Integrated Development Environments (IDEs) like Microsoft Visual Studio significantly changed the programming practice from revolving around writing code to including many practices such as the visual design of the UI and database schemas. Despite the surge of productivity in many areas of development, enterprise IDEs still suffer from a high cost of debugging.ObjectiveIn order to identify the causes of difficulties associated with debugging under enterprise IDEs, we studied a group of programmers in a company using an IDE to develop medium size 3-tier software systems. We also elicited possible alleviations for those difficulties.MethodThe qualitative results were generated using the Grounded Theory research approach. The study involved observing 17 programmers debugging stubborn bugs. We coded the major tasks involved in debugging, and then we categorized these tasks in four categories and evaluated the time spent on each of these categories. We then involved those programmers to get an explanation of the causes of those difficulties and to get recommended alleviations.ResultsThe results showed that most of the programmers’ time during debugging is spent on categories of tasks that are directly related to the nature of the enterprise IDE as opposed to classical programming.ConclusionsThe enterprise IDE platform for software development is more than a “better” development tool; it radically reshapes the development landscape shifting the time allocation of developers to new areas. Thus, corresponding fundamental changes and adaptation are needed in the IDE tools, in the way organizations manage their accumulated expertise and even in the programming techniques.     

Debugging strategies and tactics in a multi-representation software environment

This paper investigates the interplay between high level debugging strategies and low level tactics in the context of a multi-representation software development environment (SDE). It investigates three questions. 1. How do programmers integrate debugging strategies and tactics when working with SDEs? 2. What is the relationship between verbal ability, level of graphical literacy and debugging (task) performance. 3. How do modality and perspective influence debugging strategy and deployment of tactics? The paper extends the work of Katz and Anderson [1988. Debugging: an analysis of bug location strategies. Human-Computer Interaction 3, 359–399] and others in terms of identifying high level debugging strategies, in this case when working with SDEs. It also describes how programmers of different backgrounds and degrees of experience make differential use of the multiple sources of information typically available in a software debugging environment. Individual difference measures considered among the participants were their programming experience and their knowledge of external representation formalisms. The debugging environment enabled the participants, computer science students, to view the execution of a program in steps and provided them with concurrently displayed, adjacent, multiple and linked programming representations. These representations comprised the program code, two visualisations of the program and its output. The two visualisations of the program were available, in either a largely textual format or a largely graphical format so as to track interactions between experience and low level mode-specific tactics, for example.The results suggest that (i) additionally to deploying debugging strategies similar to those reported in the literature, participants also employed a strategy specific to SDEs, following execution, (ii) verbal ability was not correlated with debugging performance, (iii) knowledge of external representation formalisms was as important as programming experience to succeed in the debugging task, and (iv) participants with greater experience of both programming and external representation formalisms, unlike the less experienced, were able to modify their debugging strategies and tactics effectively when working under different format conditions (i.e. when working with either largely graphical or largely textual visualisations) in order to maintain their high debugging accuracy level.     

VS2008的IDE环境中对应用程序进行调试的方法

VS2008是当前软件开发常用的开发环境,其中在VS2008IDE下进行程序的开发,程序开发人员可以很好地利用该开发环境所继承的应用程序调试工具进行程序的调试工作。从对VS2008的开发环境的介绍谈起,就VS2008的IDE环境中对应用程序进行调试的方法进行了说明,最后对VS2008的IDE环境中应用程序进行调试的步骤进行了分析。     

Keil与VSPD软件仿真的智能仪表串口通信调试方法

串口通信编程与调试是智能仪表开发的重要内容,本文介绍了一种基于Keil与VSPD的纯软件仿真的串口通信调试方法,无需硬件仿真电路,对调试计算机也没有特殊的硬件接口要求。这种调试方法使用简单方便,经济成本低,能大大减少研制成本,并可应用于其他硬件平台开发场合。     

基于国产平台的智能跟踪调试技术

随着龙芯、飞腾、申威等国产处理器的诞生,目前涌现出了一批支持国产处理器的国产操作系统,如JARI-Works、中标麒麟等.但是,与国产软硬平台配套的调试工具发展却相对滞后,严重制约着国产平台下的软件调试效率.本文针对国产软硬平台,设计了一种基于Eclipse平台的智能调试方案.通过在Eclipse平台下集成面向国产平台的工具链和智能跟踪调试插件,自动启动并智能跟踪调试流程,从而实现调试功能的图形化和智能化,进而构建出一套界面友好、使用便捷、自主可控的集成开发环境.通过实验表明,该调试方案能够有效简化调试流程,提高国产平台下的软件调试效率.     

行政财务管理软件系统的开发与应用

本文论述了一个行政财务管理软件系统的开发与应用。文章分析了该系统的优点，介绍了系统的开发、程序的编制以及系统调试过程。