铁电存储器FM3808在DSP并行引导转载模式中的应用

本文介绍了美国Romtron公司生产的一种新型非易失、超低功耗的铁电存储器FM3808的性能特点、内部结构和工作原理，同时还分析了TMS320VC5402 DSP的并行引导装载模式，给出了DSP与FM3808组成的并行引导接口方案。     

铁电存储器在数字信号处理系统中的应用

介绍一种新型FM18L08型铁电存储器，分析TMS320VC25402型数字信号处理器(DSP)的并行引导装载模式，给出一种基于铁电存储器的DSP脱机独立运行系统的设计方案，并将该方案成功地应用在一种语音门锁系统中。     

基于FM3808的低功耗无线抄表系统的设计

FM3808具有铁电存储器优异的非易失存储特性，其片上集成的RTC更使其拥有了定时报警和看门狗功能。中介绍的无线自动抄表系统正是利用了FM3808的这些特性实现了系统的低功牦设计。[编按]     

TMS320VC5402 DSP并行8bit EPROM引导方法探析

TMS320VC5402 DSP芯片并行引导的特点和引导的过程中，设计了并行8bit EPROM引导装载的电路，并给出了实现方法。实践证明，该电路和方法在利用TMS320VC5402 DSP芯片设计系统时非常简便，具有很大的实用性。     

语音电子门锁中的DSP并行引导装载模式

介绍了TMS320VC5402型DSP的并行引导装载模式，同时分析了并行引导装载模式的优缺点。针对用户在构建脱机独芷运行系统时遇到的程序分段数多和程序引导空间不够的问题，提出一种改进型DSP并行引导装载模式设计方案。     

基于FLASH编程技术的DSP并行引导装载模式的设计

介绍TMS320VC5402型DSP的并行引导装载模式，提出一种DSP脱机独立运行系统的设计方案，并使DSP工作在并行引导装载模式下的数据存储容量达到最大。分析SST39VF200A型FLASH的在线编程技术。     

铁电存储器FM25CL64在DSP系统中的应用

介绍了一种新型铁电存储器FM25CL64,分析了TMS320VC5402 DSP的SPI引导装载模式,给出了一种基于铁电存储器FM25CL64的DSP脱机独立运行系统的设计方案,该方案已成功地应用到一种语音门锁系统中。     

DSP56362的双引导装载方法研究与实现

简要介绍了MOTOROLA公司的24位定点数字信号处理器DSP56362的并行引导过程和特点。并结合实际，提出了一种双引导模式，给出了具体的实现方法。通过这种双引导模式．巧妙地达到了系统的要求。另外，介绍了采用DSP软件编程来实现FLASH擦除和读写方法。     

铁电在DSP系统中的应用

介绍了一种具有SPI总线的高速低功耗的FRAM铁电存储器FM25CL64，对该器件的性能特点、工作原理和使用方法做了详细描述，并介绍了TI公司DSP芯片TMS320VC33—150的串行外设接口，给出了铁电存储器FM25CL64与TMS320VC33—150的硬件连接电路和应用程序实例，实际应用中证明了通过文中设计的电路及程序可有效地实现高速DSP与串行存储器的无缝连接，充分利用DSP资源。     

TMS320VC5402的16位并行引导的设计与实现

引导电路是DSP（数字信号处理器）应用系统的重要组成部分,在工程上希望设计出硬件结构简单、性价比高和工作稳定的引导电路。设计了TMS320VC5402DSP的16位并行引导电路,该引导电路采用Flash存储器AM29LV800B存放引导表,DSP与Flash存储器之间仅用一片非门集成电路74HC04进行连接,电路非常简单,成本低,经过实际制作和实验证实,该并行引导电路工作稳定可靠,具有一定的实用价值。并介绍了存放引导表的Flash存储器的编程软件和引导的操作过程。     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks     

Call for Papers—Feature Topic,Vol.12,No.7,2015

正Information Centric Networking Information-Centric Networking(ICN) is an emerging direction in Future Internet architecture research,gaining significant tractions among academia and industry.Aiming to replace the conventional host-to-host communication model by a data-centric model,ICN treats data content as the first     

JOURNAL OF ELECTRONICS(CHINA)

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NEXT GENERATION WIRELESS NETWORKS–ESPECIALLY THE USE OF MILLI-MICROWAVE BANDS

The global bandwidth shortage of wireless communications has motivated the exploration of the naillimeter wave （ram-wave） frequency spectrum for the next generation wireless communications. Recent advances in RF CMOS technology and high speed baseband signal processing technologies have enabled tile extensive research and development of turn-wave wireless communications. The multi gigabit per second data rate of ram-wave system will lead to applications in many important scenarios, such as WPAN, WLAN,back-haul for cellular system. And the frequency bands include 28 GHz, 38 GHz, 45GHz, 60GHz, E-BAND and even beyond 100 GHz. The propagation and the imitation of the RF circuits design in these frequency bands make the directional antennas be inevitable for mm-wave communications.