在Multisim 10軟件環境下，設計一種由運算放大器構成的精確可控矩形波信號發生器，結合系統電路原理圖重點闡述了各參數指標的實現與測試方法。通過改變RC電路的電容充、放電路徑和時間常數實現了占空比和頻率的調節，通過多路開關投入不同數值的電容實現了頻段的調節，通過電壓取樣和同相放大電路實現了輸出電壓幅值的調節并提高了電路的帶負載能力，可作為頻率和幅值可調的方波信號發生器。Multisim 10仿真分析及應用電路測試結果表明，電路性能指標達到了設計要求。
Abstract:
Based on Multisim 10， this paper designed a kind of rectangular-wave signal generator which could be controlled exactly composed of operational amplifier， the key point was how to implement and test the parameter indicators based on the circuit diagram. The duty and the frequency were adjusted by changing the time constant and the way of charging and discharging of the capacitor， the width of frequency was adjusted by using different capacitors PROVIDED with multiple switch， the amplitude of output voltage was adjusted by sampling voltage and using in-phase amplifier circuit，the ability of driving loads was raised， the circuit can be used as squarewave signal generator whose frequency and amplitude can be adjusted. The final simulation results of Multisim 10 and the tests of applicable circuit show that the performance indicators of the circuit meets the design requirements.
Abstract: How can an interface change a happy face to a sad face? Engineers have happy faces when an interface works properly.Sad faces indicate failure somewhere. Because interfaces between microprocessors and ICs are simple—even easy—they are oftenignored until interface failure causes sad faces all around. In this article, we discuss a common SPI error that can be almostimpossible to find in a large system. Links to interface tutorial information are PROVIDED for complete information. Noise as a systemissue and ICs to minimize its effects are also described.
Setting up an ADOCE project using Visual C++ 6.0 is rather simple. Assuming that you have downloaded and installed the ADOCE SDK from Microsoft, you are ready to use it in your Windows CE Database applications. The sample that I have PROVIDED is a *very* simple one illustrating how to instantiate the proper COM objects, and the basics of how to interface with them (in a very simple example)
工具分類：攻擊程序 運行平臺：Windows 工具大小：7577 Bytes 文件MD5 ：28f6d5f4d818438522a3d0dc8a3fa46b 工具來源：securiteam.com // GDI+ buffer overrun exploit by FoToZ // NB: the headers here are only sample headers taken from a .JPG file, // with the FF FE 00 01 inserted in header1. // Sample shellcode is PROVIDED // You can put approx. 2500 bytes of shellcode...who needs that much anyway // Tested on an unpatched WinXP SP1
SPLASH is a c++ class library that implements many of the Perl constructs and data types, including extensive regex regular expression pattern matching. For those not familiar with Perl, it is an excellent scripting language by Larry Wall and is available for most platforms. This Class library provides List, String, Regular Expression, and text manipulation handling capabilities based on those PROVIDED in Perl
UnZip is a small zipfile extract utility. It is written to be assmall portable as possible and is intended to be starting point for im-plementation of .ZIP files in non-IBM environments.Source code is PROVIDED in C and Turbo Pascal. If you port this programto a non-IBM system, I would appreciate a copy of the ported source andexe files.
Client/Server版本 DBISAM compiles directly into your application with no external libraries required. Runtime package support is also PROVIDED if so desired. It has a very small footprint and does not require any forms support in Delphi 6, C++Builder 6, and Kylix 2 and higher, which helps keep the size of non-UI applications like services or web applications to a minimum.
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1) RELEASE NOTES:
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The release notes are now PROVIDED in PDF format in the file:
\SOFTWARE\uCOS-II\DOC\RelV251.PDF
2) FEATURES SINCE V2.00:
--- --- --- -----
All the features added since V2.00 are described in the PDF file:
\SOFTWARE\uCOS-II\DOC\NewV251.PDF
3) EVENT FLAGS:
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Event Flags are discussed in AN-1007 (see www.Micrium.com/app_notes.htm)
4) QUICK REFERENCE CHART:
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A Quick Reference Chart for all the functions in V2.51 is PROVIDED in the
following .PDF files:
\SOFTWARE\uCOS-II\DOC\QuickRefChartV251-Color.PDF
Once printed, simply FOLD the page in half and if you have a LAMINATION
machine, you can protect the chart by laminating it.
Free C++ toolkit to facilitate Monte-Carlo simulation. This is a library covered under the LGPL. "MCS-libre" stands for "Monte Carlo Simulation - libre". Documentation and examples are PROVIDED.
這是一個免費的用于簡化Monte-Carlo模擬的C++工具包。這是一個遵守LGPL協議的庫。"MCS-libre"代表"Monte Carlo Simulation - libre"。提供了文檔和例子。
This document can be considered as a supplement to the already existing Application
note AN10302 “Using the Philips LPC2000 Flash Utility”, which is PROVIDED in the same
zip file. The Application note covers the following topics:
