TMS320C3X DSP引导装载系统的设计与实现

分析了TI的高速数字信号处理器TMS320C32与外部存储器Flash组成的系统中Bootloader引导装载的机理，详细叙述了工程设计中引导装载系统的设计方法和创建系统引导表的具体步骤，并针对其中的命令文件和用户引导程序给出了相应的文件范例，实践证明该系统具有很强的实用性。     

微处理器与DSP

低功耗高性能微控制器赛恩科技推出最新的低功耗、高性能eCOG1X微控制器产品家族eCOG1X。     

TI首款频率为1GHz的DSP

2004年2月，德州仪器(TI)宣布推出适用于2．5与3G移动电话的新型OMAP2架构，它将目前流行的各种设备转换成一种高品质的个人娱乐体验。通过支持诸如互动3D游戏、4百多万像素相机、数码摄像机、TV等功能，TI将把高端性能消费者对数字消费类电子产品的期望带入到智能电话领域。TI最先推     

德州仪器推出高性价比C64x DSP

Forward Concepts公司发表的一份报告显示,2002年至2007年可编程DSP芯片市场的复合年增长率(CAGR)为24%,DSP将越来越多地渗透到各个领域中,包括通信、工业、消费类电子等。随着市场需求的不断扩大,DSP市场竞争将越来越激烈,其产品将向高性能、低成本、具备多应用特性的趋势发展。德州仪器(TI)在北京、上海、深圳举办的开发商大会上,介绍了最新的DSP技术,使开发人员同第三方合作伙伴展开互动,并宣布以突破性的低价格推出两款新型DSP——TMS320C6410 与TMS320C6413,从而为开发人员提供了更优性价比的器件。这两款产品具备C64x的…     

微处理器与DSP

多核远程通信处理器；带有片上闪存的高性能16位MCU；集成CAN网络的32位微控制器；采用90nm工艺带片上闪存的微控制器；用于AMD皓龙四核处理器的多核处理器开发工具；     

微处理器与DSP

用于汽车导航系统的SH-Mobile应用处理器瑞萨科技公司推出SH-Mobile应用处理器。该初始产品是SH-MobileR。这是一款适用于汽车导航系统和支持具备One-Seg能力的地面数字广播的便携式媒体播放器的便携式和移动终端产品。SH-MobileR具有支持地面数字广播的高性能动态图像处理IP内核、全面的多媒体兼容片上外设功能、266MHz     

嵌入高速DSP器件TMS 320 C6201的微光视频数字图像处理系统

介绍了一种嵌入高速DSP（数字信号处理器）器件TMS320C6201的微光视频数字图像处理系统的应用。主要功能单元，技术特点等，并比较了它与其他种类的图像处理器以及高速DSP板卡的区别。     

微处理器与DSP

用于无线基站的增强型PALADIN系列数字处理器 PMC-Sierra公司日前发布其用于无线基地收发站(BTS)--将无线手机连接到语音或数据网络上--的增强型PALADIN系列数字处理器.增强型的PALADIN架构提供了一些新的特性,简化了WCDMA和CDMA2000的3G无线基站的设计.尤为值得一提的是,升级后的PALADIN架构支持目前最新一代的CDMA2 000技术--1xEV-DO.     

新型DSPs

重点介绍新型DSP芯片系列C62xx和C67xx的性能特点及其应用,并介绍了C64xx的有关特性。     

High-performance DSPs

The processing delay is a serious constraint for speech communication. A one-way end-to-end delay of more than 150 ms can severely degrade the quality of real-time conversations. The components of the total system delay includes the speech frame size, the look ahead, other algorithmic delays, multiplexing delay, processing delay for computation, and transmission delay. At the transcoder rate adaptor unit (TRAU), the only delay that can be manipulated is the processing delay. The TRAUs are generally positioned remote to the base transceiver station (BTS). The channel codec units (CCUs) are located in the BTS. In general, 16 kbit/s traffic channels can be used for full rate speech between the TRAU and BTS. By putting the TRAU remote to the BTS, DSPs for speech coding can be utilized more efficiently to cut system cost. High performance DSPs, such as the Lucent DSP16000, can be used to further cut the cost per speech channel. This article presents an implementation of GSM enhanced full rate (EFR) codec on the Lucent Technologies' DSP16000. The original European Telecommunications Standards Institute (ETSI) C code has been restructured to address the issues of MIPS (million instructions per second), RAM usage, and processing delay. We give a performance overview of vocoder implementations on some existing fixed-point DSPs and discuss the architecture of the DSP16000. Details on how the ETSI C code is restructured are presented. The DSP16210 implementation results are then discussed     

Microprocessors in instrumentation

The surge of microprocessors into the market place may have received a lot of press coverage, but its full impact in test instrumentation is yet to be felt. The authors discuss the promise microprocessors hold for instrumentation, from the very basics to a relatively complex design for the IEEE Standard 488 (or "GPIB") Interface Bus. They also guide the designer quickly through many of the pitfalls that await the unwary, novice and expert alike.     

DSPs in communications

The author describes how dropping prices, rising speeds and the ability to be reprogrammed in-situ make digital signal processor chips (DSPs) more attractive than ever in the field of communications applications     

DSP在控制领域的新进展

DSP系统设计者有多种可以在产品中集成数字信号处理功能的手段——从微控制器到FPGA。然而一直以来,对这些多样化的DSP器件进行设计和编程却并不轻松。为了简化设计,M i c r o c h i pTechnology将微控制器和DSP功能集成到其数字信号控制器(DSC)芯片中。数字信号控制器事业部的     

Microprocessors circa 2000

The authors examine the trends that they believe will lead to microprocessors with a projected 50 million transistors on a die measuring 1 in² which could incorporate multiple processors with an aggregate performance of over 2000 million instructions per second (MIPS). They propose a new law of computing and semiconductors: `every concept proved useful in mainframe or minicomputers has migrated or will migrate onto the microprocessor'. They discuss developments that break systems bottlenecks, increased performance demands, increasing speed, reliability challenges, interconnection problems, and design and test issues     

PC机与PIC单片机主从式多机通讯及其在数据检测系统中的应用

主要针对煤气报警器检测系统的数据传输问题，提出一种PC机与多台PIC单片机主从式串行异步通讯的方式，给出硬件电路图，通信协议，软件流程图及其在实际的数据检测系统中应用时的注意事项。