Standardization Activities for IPTV Set-Top Box Remote Management

IPTV services are gaining widespread use, requiring service providers to have effective methods for remotely configuring and managing IPTV set-top boxes (STBs). Solutions for such remote management are becoming standards-based. This article examines published specifications and ongoing activities on IPTV STB remote management in four standards organizations: the Broadband Forum, the Digital Video Broadcasting Project, the Open IPTV Forum, and the Alliance for Telecommunication Industry Solutions IPTV Interoperability Forum. The authors compare the protocol and data model definitions, investigate interoperability test events, and comment on possible future directions for standardization.     

VB程序调试

在编制程序时，产生错误很难避免，因此调试程序显得尤为重要。介绍了VB的错误类型、调试工具以及一些调试技术的应用，供广大编程人员参考.     

VB程序调试

在编制程序时,产生错误很难避免,因此调试程序显得尤为重要。介绍了VB的错误类型、调试工具以及一些调试技术的应用,供广大编程人员参考。     

Windows系统故障分析

Windows系统可能出现的故障有很多种。一套Windows服务器系统,对于最终用户来说,该Windows服务器系统的故障包括不能访问和返回结果异常等;而对于该Windows服务器系统本身,故障包括服务器间连接访问出现问题、服务器程序崩溃、服务器进程死锁、程序不能启动以及程序自动退出等。此文通过对Windows的故障分析工具WinDBG进行了研究,提出了通用方法。     

An Overview of Process Technology Activities at the Software Engineering Institute

This paper provides an overview of the rationale for, and direction of the process technology work being pursued at the Software Engineering Institute. The paper then describes some of the activities that the SEI has recently been involved in: process definition, process simulation, and technology for collaborative process support.     

DCS安装调试规范

介绍DCS系统的安装、调试,阐述系统的接地规范、干扰在过程控制中的影响及预防、系统调试的具体方法和步骤。     

In-System Silicon Validation and Debug

Silicon validation - proving a chip works correctly at speed and in system under different operating conditions - is always necessary, even for a "perfect" design. Silicon debug - finding the root cause of a malfunction - is necessary whenever a design is not flawless. First-silicon validation and debug require a labor-intensive engineering effort of several months and have become the least predictable and most time-consuming part of a new 90-nm chip's development cycle. Lack of adequate tools and automatic procedures is a big factor in this bottleneck. The difficulty of silicon validation will increase at 65 nm and below because existing ad hoc methodologies don't scale with the unprecedented levels of SoC device complexity. Even the most sophisticated SoC design methodology cannot fully account for all the parameters that affect silicon behavior, or for all logic corner cases occurring in the life of a chip working at speed and in system. For example, the simultaneous occurrence of two unlikely events might not be anticipated pre- silicon, so it is never simulated or analyzed; however, when it occurs in system, it can cause unexpected behavior. Presilicon verification methods - simulation, emulation, FPGA prototyping, timing analysis, and formal verification - don't address many deep-submicron problems that occur in the actual device.     

嵌入式多核平台调试技术

多核处理器因其处理能力和功耗的潜在优势,逐渐应用于嵌入式系统中．而多核体系的并行程序调试难度将直接影响到产品的释放周期,其调试过程的复杂度将随着片上核数的增加而呈指数上升．本文针对多核平台中常见的异常问题,通过分析MIPS架构的软硬件平台工作原理,介绍了一种嵌入式多核系统的调试方法,实现对简单程序的跟踪分析,方便了多核系统的调试．     

基于Windows邮槽机制的程序调试模块

调试是软件实现的一大关键步骤，程序开发环境提供了多种调试工具，其中打印各类数据及状态信息是很重要的工具。本文采用Windows进程间通信的邮槽mailslot来实现状态信息的输出，以此实现的调试模块简单而且功能可扩展。     

基于ARM嵌入式开发的调试方案

分析和比较了基于Angel的调试系统和基于Multi-ICE的调试系统,给出了分别基于这两种调试系统的ARM嵌入式开发的调试方案,有效地解决了高端嵌入式处理器开发中的调试难点。     

嵌入式MPSoC的调试功能实现

从软件角度讨论了嵌入式MPSoC的调试功能实现．在实时操作系统中设置了调试管理部分,通过构建操作系统的调试进程实现相应的调试功能,实现的调试功能模块包括相应的调试命令集规范、输入／输出模块及执行命令模块．实时操作系统驻住在MPSoC的主控芯片上,通过将执行命令模块放置到不同的处理器核上实现调试各核及核上程序的功能．为了保证操作系统自身功能正确,首先通过硬件EJTAG模块调试操作系统本身,并开发了相应的软件RDView;然后使用操作系统的调试管理部分实现调试本机及其他处理器核上应用程序的执行状况．基于软件实现的调试管理功能以较小的内存代价,方便、有效地实现了MPSoC的调试功能．     

诊断卡的设计与实现

依据PCI规格,理解PCI Bus Command中的I／O Write这一动作的状态,以传统的PCI Debug Card(Port 80H)作为背景,阐述了如何开发一种多功能的基于PCI BUS的除错卡,主要在方法上采用了现代工程研制模式,为诊断主板故障从理论上提供了一种有效的方法。     

多核处理器YHFT-QDSP的调试系统

YHFT-QDSP是一款多核处理器。为满足其并发调试和实时调试的需要,在原有单核调试系统的基础上设计实现了多核同步调试系统和片上实时追踪系统（片上Trace）。多核同步调试提供了命令广播和断点同步触发等并发程序协同调试的功能;片上Trace通过专用硬件记录程序执行路径和数据读写等信息实现非入侵实时调试。本文从原理、结构和
软硬件实现等方面介绍了该调试系统。     

基于VxWorks的异常问题分析及调试方法的研究

在基于嵌入式操作系统VxWorks的软件开发过程中,由于人员水平和经验的限制,开发的软件中如果使用了非法指令或堆栈溢出、程序死循环等原因,会造成系统或任务异常,甚至装置死机或重启。根据在实际开发过程中遇到的问题,总结了异常的原因并通过示例给出了分析定位异常问题的方法。     

可扩展硬件的自动化调试系统设计

设计了一套自动化调试系统.首先采用NI的PXI可扩展硬件系统,利用开关矩阵实现不同信号的任意切换;然后上位机程序利用Python脚本语言和仪器驱动PyVISA模块,借助Python对中文的支持,采用中文编写调试代码;最后通过该系统对某型产品的性能指标进行了调试.试验结果表明,调试人员能够根据该系统快速编写不同的调试序列,完成不同产品的调试过程.该系统具有通用性、高可读性等特点,对于多样化产品、多参数产品的调试具有广泛的实用性.     

Functional Debug Techniques for Embedded Systems

Some problems in a new chip design or its embedded software show up only when a silicon prototype of the chip is placed in its intended target environment and the embedded software is executed. Traditionally, embedded-system debug is very difficult and time-consuming because of the intrinsic lack of internal system observability in the target environment. Design for debug (DFD) is the act of adding debug support to a chip's design in the realization that not every silicon chip or embedded-software application is right the first time. In the past few years, functional debug has made significant progress. This article describes the most common structured approaches available for silicon debug of embedded systems.     

基于MATLAB的DSP调试方法

描述了CCSLink与CCS IDE的基本概念,介绍了建立CCS对象的过程,并以MATLAB提供的实际工程文件为例,演示了利用CCSLink连接和嵌入式对象进行C变量操作的实际过程,并对其执行过程和结果进行了简要解释.     

RTDX在弹载DSP软件代码调试中的应用

本文在分析现有实时嵌入式软件调试技术的基础上,对利用RTDX技术开展红外导引头软件代码调试的叮行性进行了分析,并以TMS320F2812为硬件平台将DSP程序的调试数据传输至主机．通过对数据传输的正确性利实时悱进行分析,认为RTDX能够用于弹载软件代码调试,论文的研究成果为后续基于RTDX开展嵌入式系统软什敝障注入和软件测试验证积累了经验．     

保护测控装置调试软件设计与实现

针对日益复杂的电力系统保护测控装置和受限的装置人机接口,提出并设计了一种装置配置调试维护软件方案。该方案将软件的主要功能划分为子进程,各子进程通过主进程引导。并按照分层原则,构建了保护装置配置调试维护系统软件的视图、业务、通信三层结构,并首次提出了基于变量名和地址相结合的嵌入式动态分配内存的调试方法。实现了装置程序下载和变量查询、在线状态浏览、客户端调试等功能。在多个国家和地区的实际应用效果表明,该软件通信功能稳定可靠,全面丰富的调试功能弥补了装置面板人机交互功能差、调试过程繁杂、效率不高的缺点;提高了嵌入式装置的程序开发和调试效率,良好的用户体验提升了产品的市场竞争力。     

Comprehensive Approach to High-Performance Server Chipset Debug

This article describes a comprehensive approach for silicon debug of a server chipset that includes a high-performance, third-generation chip-multithreaded (CMT) Sparc microprocessor. Efficiently debugging the chipset required a combination of debug features in silicon and system platforms, firmware support for debug, test generation tools, and debug data interpretation tools. Several useful lessons were learned in the process.