MAX186与DSP的SPI接口及设计

介绍了MAXIM公司的串行模数转换芯片MAX186及TI公司TMS320C6711DSP的多通道缓冲串口(McBSP)的工作原理。采用McBSP的SPI(SeriesProtocolInterface)工作模式,将McBSP与MAX186直接相连,从而基于DSP多功能缓冲串口的数据采集及信号处理系统。给出了MIX186与TMS320C6711McBSP的接口电路及软件编程实现。     

MAX186与DSP的SPI接口及设计

介绍了MAXIM公司的串行模数转换芯片MAX186及TI公司TMS320C6711 DSP的多通道缓冲串口(McBSP)的工作原理.采用McBSP的SPI(Series Protocol Interface)工作模式,将McBSP与MAX186直接相连,从而基于DSP多功能缓冲串口的数据采集及信号处理系统.给出了MIX186与TMS320C6711 McBSP的接口电路及软件编程实现.     

基于TMS320C6455 McBSP串口的数据传输的设计与实现

本文对美国德州仪器(TI)公司的DSP芯片TMS320C6455的新型同步多通道缓冲串行口(McBSP)的技术特性作了介绍,文章针对TMS320C6455没有异步串口的特点,对串口(McBSP)的开发与应用作了较详细的论述,结合相应的软件处理,编程实现了DSP与计算机的异步串口RS-232进行通信的功能。     

McBSP和EDMA在实时数据流传输中的配置

以利用TMS320C64x进行音频处理为例,介绍TMS320C64x多通道缓冲串口（McBSP）和增强型直接存储器访问（EDMA）;重点讲述McBSP控制寄存器和EDMA参数RAM的设置方法,并给出利用EDMA参数链接（linking）功能和乒乓缓冲实现连续数据流传输的实现方法。     

TMS320C5402与MAX1270的SPI接口设计与实现

根据 MAXIM 公司的12位串行模数转换芯片 MAX1270及 TI 公司 TMS320C5402 DSP 的多通道缓冲串口(McBSP)的工作原理,设计了高速传输通道,采用 McBSP 的 SPI(Series Protocol Interface)工作模式,将 McBSP 与 MAX1270直接相连,不需要占用并行数据总线,避免了总线冲突。给出了MAX1270与 TMS320C5402的 McBSP 的接口电路及软件编程实现。     

基于TMS320C6713的McBSP和EDMA实现串口通信

针对TI公司的DSP芯片TMS320C6713,利用片上同步多通道缓冲串行口(McBSP)和增强型直接存储器存取(EDMA)实现了串口通信功能。该方案解决了芯片只有同步串口而不能进行异步传输的问题,丰富了接口功能。     

DSP与单片机通信的多种方案设计

基于嵌入式系统发展的需要,提出TMS320 VC5402 DSP与AT89C51单片机通信的三种设计方案。利用TMS320 VC5402的多通道缓冲串口McBSP分别实现TMS320 VC5402与AT89C51的SCI和SPI串行通信,以及通过TMS320 VC5402的8位增强主机接口HPI-8实现TMS320 VC5402与AT89C51并行通信。就硬件接口电路和软件编程进行详细的阐述。     

基于TMS320F2812多通道缓冲串口高速实时数据采集接口设计

本文介绍了TMS320F2812的多通道缓冲串口(McBSP)的工作过程及其控制寄存器的配置方法．说明了如何利用McBSP fifo完成数据采集,并以ADS8361为例介绍了多通道缓冲串口(McBSP)和串行A／D的硬件接口和数据采集程序的设计．     

基于DSP的串口扩展及多协议异步串口设计

以TI公司生产的数字信号处理器(TMS320C6713)为例,介绍了两种分别通过多通道缓冲串行口(McBSP)和外部存储器接口(EMIF)扩展异步串行口的方法,并在此基础上实现了多协议异步串行口的设计。     

基于McBSP的高速串行数据采集系统设计

介绍了AD公司的串行模数转换芯片AD974及TI公司的TMS320C6711芯片多通道缓冲串口(McBSP)的工作原理。采用McBSP的SPI(SeriesProtocolInterface)工作模式,可将McBSP与AD974直接相连,从而无须任何转换而实现高速串行数据传输,并给出了AD974芯片与McBSP的接口电路及软件设计。     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。