通过比较各种隔离数字通信的特点和应用范围，指出塑料光纤在隔离数字通信中的优势。使用已经标准化的TOSLINK接口，有利于节省硬件开发成本和简化设计难度。给出了塑料光纤的硬件驱动电路，说明设计过程中的注意事项，对光收发模块的电压特性和频率特性进行全面试验，并给出SPI口使用塑料光纤隔离通信的典型应用电路图。试验结果表明，该设计可为电力现场、电力电子及仪器仪表的设计提供参考。 Abstract: y comparing characteristics and applications area of various isolated digital communications， this article indicates advantages of plastic optical fiber in isolated digital communications. Using the standardized TOSLINK interface， it helps to control costs and difficulty in hardware development and design. Then it gives the hardware driver circuit of plastic optical fiber module， explains the noticed Details in design process， gives results on the basis of the optical transceiver module voltage characteristics and frequency characteristics tests. Finally，it gives typical application circuit of the SPI communication port by using plastic optical fiber isolation .The results show that this design can be referenced for the power field， power electronics and instrumentation design.
上传时间： 2014-01-10
上传用户：gundan
The standard that governs the design of avioniccomponents and systems, DO-254, is one of the mostpoorly understood but widely applicable standardsin the avionic industry. While information on thegeneral aspects of the standard is easy to obtain, theDetails of exactly how to implement the standard aresketchy. And once an entity develops a process thatachieves compliance, the Details of how compliancewas achieved become part of the intellectualproperty of that entity. This white paper focuses onthe Details of developing a DO-254 compliantprocess for the design of FPGAs.
上传时间： 2013-11-03
上传用户：ysystc670
One of the most misunderstood constructs in the Verilog language is the nonblockingassignment. Even very experienced Verilog designers do not fully understand how nonblockingassignments are scheduled in an IEEE compliant Verilog simulator and do not understand whenand why nonblocking assignments should be used. This paper Details how Verilog blocking andnonblocking assignments are scheduled, gives important coding guidelines to infer correctsynthesizable logic and Details coding styles to avoid Verilog simulation race conditions
上传时间： 2013-11-01
上传用户：xzt
本文论述了状态机的verilog编码风格,以及不同编码风格的优缺点，Steve Golson's 1994 paper, "State Machine Design Techniques for Verilog and VHDL" [1], is agreat paper on state machine design using Verilog, VHDL and Synopsys tools. Steve's paper alsooffers in-depth background concerning the origin of specific state machine types.This paper, "State Machine Coding Styles for Synthesis," Details additional insights into statemachine design including coding style approaches and a few additional tricks.
标签： Synthesis Machine Coding Styles
上传时间： 2013-10-12
上传用户：sardinescn
USB接口控制器参考设计,xilinx提供VHDL代码 usb xilinx vhdl ; This program is free software; you can redistribute it and/or modify ; it under the terms of the GNU General Public License as published by ; the Free Software Foundation; either version 2 of the License, or ; (at your option) any later version. ; ; This program is distributed in the hope that it will be useful, ; but WITHOUT ANY WARRANTY; without even the implied warranty of ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ; GNU General Public License for more Details. ; ; You should have received a copy of the GNU General Public License ; along with this program; if not, write to the Free Software ; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
上传时间： 2013-10-29
上传用户：zhouchang199
The AN10 begins with a survey of methods for measuring op amp settling time. This commentary develops into circuits for measuring settling time to 0.0005%. Construction Details and results are presented. Appended sections cover oscilloscope overload limitations and amplifier frequency compensation.
上传时间： 2013-11-14
上传用户：JIMMYCB001
This hands-on, one-stop guide delivers the focused, streamlined direction you need to get your Web solutions up and running quickly. Zero in on key ASP.NET configuration Details and techniques using quick-reference tables, lists, coding and more.
标签： streamlined direction hands-on delivers
上传时间： 2015-01-11
上传用户：Thuan
This program is free software you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more Details.
标签： redistribute the software program
上传时间： 2013-12-22
上传用户：cazjing
RSA MD5 VISUAL C++ SOURCE CODE v1.2 - Visual C++ implementation of the RSA MD5 message digest algorithm. Calculates a 32byte checksum for any data sequence. Developed by Langfine Ltd. Note, RSA copyright notices must be adhered to - see the source code for Details.Released November 2001
标签： implementation RSA MD5 message
上传时间： 2015-03-23
上传用户：saharawalker
This software was done in part for a textbook on AI I ve written called _The Basis of AI_ (tentative title, subject to change but not if I get my way). For Details see: http://www.mcs.com/~drt/basisofai.html
标签： tentative software textbook written
上传时间： 2015-03-30
上传用户：cxl274287265
