DSP与PC机串行通信的几种方法

数字信号处理器由于具有高性能和灵活可编程的优点而得到广泛的应用。在许多应用系统中，一般采用PC机作主机、DSP作从机的方式，实现DSP与PC机之间有效可靠的通讯是系统设计的重要部分。介绍了几种DSP和PC机串行通信的软硬件方案，并对各种方法的优点和缺点进行了比较。     

基于TL16C752B的DSP与PC机异步串行通信实现方法

在数字信号处理器（DSP）的实际应用中,经常要求DSP 与PC 机进行数据交换,由于DSP 大多只具有多通道缓冲串口（McBSP）,而PC 机通常使用异步串行接口,若采用通用异步收发器芯片（UART）来实现DSP 的串口通信,可以避免McBSP 复杂的软件编程模拟.本文介绍了一种UART 芯片TL16C752B,并给出一种基于该芯片实现DSP 与PC 机异步串行通信的方法,以及相关的设计框图和软件编程代码.     

基于delphi的矩阵变换器系统实验平台的设计

根据DSP的特点和其在矩阵变换器实验系统中的实际应用,给出了一种基于Delphi的矩阵变换器实验系统平台的设计方法。该方法利用Delphi编程语言进行设计,并利用串行通信控件MSCOMM来实现DSP与PC机间快速、准确、可靠的数据传输。     

基于矩阵变换器的高性能交流调速系统监控界面的设计

为了使电机驱动系统具有良好的人机信息交流功能,设计了交流调速系统的监控界面。本设计以PC机为主机、DSP为从机,在Delphi环境下采用MSComm控件实现DSP与PC机间的串行通信,然后对数据进行处理、显示与分析,最后在矩阵变换器系统实验平台上实现了上位机对异步电动机按转子磁链定向的矢量控制系统、异步电动机直接转矩控...     

串行通讯在基于DSP控制的变频调速中的应用

DSP由于具有高性能和灵活可编程的优点而得到广泛的应用。本文介绍了以DSPTMS320F2812为核心控制器的异步电动机变频调速的通讯及程序设计方法,同时通过数据传送程序说明如何使用VB6.0专业版作为开发工具、并利用DSP中的SCI模块来实现DSP与PC机间的数据传递。通过实验证明该通信方案简单易行、通信稳定可靠、具有一定的通用性。     

基于DSP的交互式电子白板系统的研究

DSP是当今主要的用于数字信号处理的嵌入式平台,随着嵌入式应用的日益广泛和加深越来越多的工作需要DSP芯片与PC机的协同工作来满足现代多媒体技术日益发展的要求。因此本系统运用DSP信号处理系统与计算机的协同工作来实现移动通信的无线定位撞术,以此来实现交互式电子白板的设计要求。本文主要阐述利用虹外线,超声波联合定位技术搭戴DSP信号处理系统实现对笔迹进行描述的方法。     

基于Lab Windows／CVI的PC与DSP的串行通信

给出了利用LabWindows／CVI虚拟仪器软件开发工具中的RS232接口库函数来在PC机与DSP数字信号处理器之间进行串行通信的具体设计方法,给出了PC机和DSP之间的硬件连接方式和基本的编程思路。     

DSP在通用数字测试仪中的应用

本测试仪是基于DSP通用数字测试仪，采用DSP的SCI与PC机相连，通过DSP的SPI与8片GM8164串联，这样对外可提供256个双向I／O口与待测电路板连接。PC机发送测试数据给待测电路板并对返回的测试结果数据进行分析判断。来确定电路板是否有故障，从而实现测试功能。     

简析DSP与PC机间的数据通信

在目前,DSP的应用日益增多,应用之时DSP会与外界一直维持通信,基于此,该文简单介绍了DS TMS320LF2407之中能够用以通信的模块-串行通用接口,即为SCI,因此给出基于SCI模块实现DSP与PC机间数据通信的一类方法。本文还主要分析了硬件连接及其软件编程。     

TMS320C5402与PC机异步通信的设计与实现

为实现“基于FPGA／DSP的数字芯片测试仪”与PC机之间的通信,本文采用DSP芯片TMS320C5402与PC机之间进行串行通信,介绍了TMS320C5402McBSP（多通道缓冲串口）的特点及MAX3111的一些特点,并给出了通信方案的具体设计思想及相应的硬件配置和软件设计。经测试表明,此方案完全可行,能实现DSP与PC机之间的异步通信,传输准确性高。     

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.