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  • US Navy VHDL Modelling Guide

      This document was developed under the Standard Hardware and Reliability Program (SHARP) TechnologyIndependent Representation of Electronic Products (TIREP) project. It is intended for use by VHSIC HardwareDescription Language (VHDL) design engineers and is offered as guidance for the development of VHDL modelswhich are compliant with the VHDL Data Item Description (DID DI-EGDS-80811) and which can be providedto manufacturing engineering personnel for the development of production data and the subsequent productionof hardware. Most VHDL modeling performed to date has been concentrated at either the component level orat the conceptual system level. The assembly and sub-assembly levels have been largely disregarded. Under theSHARP TIREP project, an ATtempt has been made to help close this gap. The TIREP models are based upon lowcomplexity Standard Electronic Modules (SEM) of the format A configuration. Although these modules are quitesimple, it is felt that the lessons learned offer guidance which can readily be applied to a wide range of assemblytypes and complexities.

    标签: Modelling Guide Navy VHDL

    上传时间: 2014-12-23

    上传用户:xinhaoshan2016

  • 单片机控制的铅酸蓄电池充电电源

     为了有效地提升铅酸蓄电池的使用寿命,同时实现对充电过程的监控,设计出一种用单片机控制的36 V铅酸蓄电池充电电源。本电路采用反激式拓扑,连续电流工作模式,电源管理IC设计在电源的副边,由ELAN公司的EM78P258N单片机模拟,是用可编程器件模拟电源管理IC,实现智能电源低成本化的一次成功尝试,通过对单片机的软件设计实现了充电电源的状态显示、充电时间控制、报警、过温保护、过压保护、过流保护等功能。本充电器真正的实现了铅酸蓄电池的三段式充电过程,其最高输出功率可达90 W,效率约85%,成本不到20元,具有很高的市场竞争力。 Abstract:  In order to extend the life of lead-acid battery efficiently and supervise the charging process meanwhile, a 36V lead-acid battery charge powe supply controlled by microcontroller is designed. The charger is flyback switching power supply and works in CCM mode. A EM78P258N microcontroller made by ELAN microelectronics corporation is used as power management IC which is designed at the secondary circuit. The project is a successful ATtempt to low-cost intelligent power used microcontroller simulating power management IC. The charger also has the functions of the status reveal, charge time control, alarming, thermal protect, current limit and overvoltage protect by the software design. The circuit actually implements the three-step charge process, whose power is up to 90W and whose efficiency can get 85%. The net cost of this charger is less than 20 RMB, so that the charger is of powerful market competitiveness.    

    标签: 单片机控制 充电电源 铅酸蓄电池

    上传时间: 2013-11-16

    上传用户:cepsypeng

  • MPC106 PCI Bridge/Memory Contr

    In this document, the term Ô60xÕ is used to denote a 32-bit microprocessor from the PowerPC architecture family that conforms to the bus interface of the PowerPC 601ª, PowerPC 603ª, or PowerPC 604 microprocessors. Note that this does not include the PowerPC 602ª microprocessor which has a multiplexed address/data bus. 60x processors implement the PowerPC architecture as it is speciÞed for 32-bit addressing, which provides 32-bit effective (logical) addresses, integer data types of 8, 16, and 32 bits,and ßoating-point data types of 32 and 64 bits (single-precision and double-precision).1.1 Overview The MPC106 provides an integrated high-bandwidth, high-performance, TTL-compatible interface between a 60x processor, a secondary (L2) cache or additional (up to four total) 60x processors, the PCI bus,and main memory. This section provides a block diagram showing the major functional units of the 106 and describes brießy how those units interact.Figure 1 shows the major functional units within the 106. Note that this is a conceptual block diagram intended to show the basic features rather than an ATtempt to show how these features are physically implemented on the device.

    标签: Bridge Memory Contr MPC

    上传时间: 2013-10-08

    上传用户:18711024007

  • Algorithms(算法概论)pdf

    This book evolved over the past ten years from a set of lecture notes developed while teaching the undergraduate Algorithms course at Berkeley and U.C. San Diego. Our way of teaching this course evolved tremendously over these years in a number of directions, partly to address our students' background (undeveloped formal skills outside of programming), and partly to reect the maturing of the eld in general, as we have come to see it. The notes increasingly crystallized into a narrative, and we progressively structured the course to emphasize the “story line” implicit in the progression of the material. As a result, the topics were carefully selected and clustered. No ATtempt was made to be encyclopedic, and this freed us to include topics traditionally de-emphasized or omitted from most Algorithms books.

    标签: Algorithms 算法

    上传时间: 2013-11-11

    上传用户:JamesB

  • US Navy VHDL Modelling Guide

      This document was developed under the Standard Hardware and Reliability Program (SHARP) TechnologyIndependent Representation of Electronic Products (TIREP) project. It is intended for use by VHSIC HardwareDescription Language (VHDL) design engineers and is offered as guidance for the development of VHDL modelswhich are compliant with the VHDL Data Item Description (DID DI-EGDS-80811) and which can be providedto manufacturing engineering personnel for the development of production data and the subsequent productionof hardware. Most VHDL modeling performed to date has been concentrated at either the component level orat the conceptual system level. The assembly and sub-assembly levels have been largely disregarded. Under theSHARP TIREP project, an ATtempt has been made to help close this gap. The TIREP models are based upon lowcomplexity Standard Electronic Modules (SEM) of the format A configuration. Although these modules are quitesimple, it is felt that the lessons learned offer guidance which can readily be applied to a wide range of assemblytypes and complexities.

    标签: Modelling Guide Navy VHDL

    上传时间: 2013-11-20

    上传用户:pzw421125

  • This document is designed to aid anyone considering whether to write an emulator for an arcade gam

    This document is designed to aid anyone considering whether to write an emulator for an arcade game machine. It will ATtempt to answer frequently asked questions, give a step by step tutorial, and provide the resources necessary for a capable programmer to begin work on an emulator for an arcade game.

    标签: considering document designed emulator

    上传时间: 2014-01-05

    上传用户:caixiaoxu26

  • This Handbook, published under the auspices of the Senior NATO Logisticians’ Conference (SNLC), i s

    This Handbook, published under the auspices of the Senior NATO Logisticians’ Conference (SNLC), i s i ntended as a simple guide to logistics i n NATO. It does not ATtempt to examine current i ssues or provide answers to the problems that logisticians will face, but i t rather aims at i ntroducing them to some of the basic principles, policies, concepts and organisations with which they will work.

    标签: Logisticians Conference published the

    上传时间: 2014-12-07

    上传用户:www240697738

  • jsp和xml。XML and JSP are two important tools available in producing a web application. This chapter e

    jsp和xml。XML and JSP are two important tools available in producing a web application. This chapter examines the potential of mixing these two technologies in order to enhance the capabilities of JSP. While this chapter will cover many things about XML, this chapter will not ATtempt to teach XML. Instead it focuses on how JSP and XML can be used together as a highly flexible and powerful tool. In general the usage of XML in these examples will be kept simple and should cause no problems for users who are starting XML.

    标签: application important available producing

    上传时间: 2013-12-10

    上传用户:1427796291

  • CCE is a multi-instance learning method solving multi-instance problems through adapting multi-insta

    CCE is a multi-instance learning method solving multi-instance problems through adapting multi-instance representation to single-instance algorithms, which is quite different from existing multi-instance learning algorithms which ATtempt to adapt single-instance algorithms to multi-instance representation

    标签: multi-instance multi-insta adapting learning

    上传时间: 2014-01-14

    上传用户:manlian

  • Scope of this RevisionThe 2.0 revision of the specification is intended for product design. Every at

    Scope of this RevisionThe 2.0 revision of the specification is intended for product design. Every ATtempt has been made to ensure aconsistent and implementable specification. Implementations should ensure compliance with this revision.

    标签: specification RevisionThe intended revision

    上传时间: 2016-12-22

    上传用户:nanfeicui