针对主控制板上存储器(SRAM) 存储的数据量小和最高频率低的情况,提出了基于SDR Sdram(同步动态RAM) 作为主存储器的LEd 显示系统的研究。在实验中,使用了现场可编程门阵列( FPGA) 来实现各模块的逻辑功能。最终实现了对L Ed 显示屏的控制,并且一块主控制板最大限度的控制了256 ×128 个像素点,基于相同条件,比静态内存控制的面积大了一倍,验证了动态内存核[7 ]的实用性。
上传时间： 2013-12-18
上传用户：c12228
These are P-Channel enhancement mode silicon gate power fi eld effect transistors. They are advancEd power MOSFETs designEd, testEd, and guaranteEd to withstand a specifi Ed level of energy in the breakdown avalanche mode of operation. All of these power MOSFETs are designEd for applications such as switching regulators, switching converters, motor drivers, relay drivers and drivers for other high-power switching devices. The high input impEdance allows these types to be operatEd directly from integratEd circuits.
标签： enhancement transistors P-Channel are
上传时间： 2017-02-17
上传用户：aeiouetla
IEC 62056 的很有价值的参考文档，包括： DLMS UA 1000-1 Ed.8, Blue book, COSEM Identification System and Interface Classes DLMS UA 1000-2 Ed.6, Green book, DLMS/COSEM Architecture and Protocols DLMS UA 1001-1 Ed.3,Yellow book, DLMS/COSEM Conformance Testing Proce
上传时间： 2017-02-18
上传用户：小眼睛LSL
The C++ Editor is a text Editor for C++ programmers. The Editor have color syntax highlighting. Editor s main purpose is to Edit source code files outside the IDE (IntegratEd Development Environment) with multiple openEd copies of program, when programmer neEds to find, replace or compare source code. The program can compile the file using for this purpose the Microsoft VC compiler. Most effectively the Editor can be usEd with a file search utility. The search utility Search&Edit or IDE Helper is available for download on developer s WEB site (http://www.easydevtools.com/dwnl_frame.htm).
标签： Editor highlighting programmers The
上传时间： 2013-12-09
上传用户：x4587
In this paper, the feasibility of replacing a chaos source by an equivalent digital pseudo-random generator realizEd using Linear FeEdback Shift Register (LFSR) is studiEd. Particular emphasis is given on the digital implementation Piece-Wise Linear A ffine Maps (PWAM). As an application, an FPGA implementation of four different maps has been experimentally verifi Ed in a FM-DCSK test radio system.
标签： pseudo-random feasibility equivalent replacing
上传时间： 2013-12-13
上传用户：从此走出阴霾
This Symbian C++ code example demonstrates how to easily use the onboard camera with zoom and autofocus, utilising an accompanying CameraWrapper made by Forum Nokia. The Camera Wrapper supports all Nokia s S60 devices basEd on S60 3rd Edition and newer, providing a unifiEd interface for various Symbian and S60 camera APIs some of which have previously been Feature Pack specific or only available via an SDK plug-in. The example application supports the use of both the keypad and touch UI. The application can be self-signEd, but it also provides an option to use the dEdicatEd camera key (Symbian signing requirEd). The example application replaces the separate examples publishEd for S60 3rd Edition, FP1 (S60 Platform: Camera Example with AutoFocus Support v2.2) and FP2 (S60 Camera Example AutoFocus 3rd Ed FP2).
标签： demonstrates Symbian example onboard
上传时间： 2013-12-11
上传用户：hopy
Modelling the Wireless Propagation Channel -A simulation approach with Matlab - 1st Ed一书中的所有程序
上传时间： 2017-05-17
上传用户：zhaoyaqun
This book is an entry-level text on the technology of telecommunications. It has been craftEd with the newcomer in mind. The eighteen chapters of text have been preparEd for high-school graduates who understand algebra, logarithms, and basic electrical prin- ciples such as Ohm’s law. However, many users require support in these areas so Appen- dices A and B review the essentials of electricity and mathematics through logarithms.
标签： Telecommunications Fundamentals 1st of Ed
上传时间： 2020-05-27
上传用户：shancjb
This book is an entry-level text on the technology of telecommunications. It has been craftEd with the newcomer in mind. The twenty-one chapters of text have been preparEd for high-school graduates who understand algebra, logarithms, and the basic principles of electricity such as Ohm’s law. However, it is appreciatEd that many readers require support in these areas. Appendices A and B review the essentials of electricity and mathematics up through logarithms. This material was placEd in the appendices so as not to distract from the main theme, the technology of telecommunication systems. Another topic that many in the industry find difficult is the use of decibels and derivEd units. Appendix C provides the reader a basic understanding of decibels and their applications. The only mathematics necessary is an understanding of the powers of ten
标签： Telecommunications Fundamentals 2nd of Ed
上传时间： 2020-05-27
上传用户：shancjb
The chief objective of Electric Machinery continues to be to build a strong foundation in the basic principles of electromechanics and electric machinery. Through all of its Editions, the emphasis of Electric Machinery has been on both physical insight and analytical techniques. Mastery of the material coverEd will provide both the basis for understanding many real-world electric-machinery applications as well as the foundation for proceEding on to more advancEd courses in electric machinery design and control.
上传时间： 2020-06-10
上传用户：shancjb
