Description: 在Win2000及以上系统访问硬件端口的库及DEMO源程序，这个不是很好，我自己写了一个类，可以使应用程序不需要任何驱动程序也能鋗象在WIN98下那样访问端口，（收费的）有意者与我联系：02388888@vip.sina.com-in Win2000 and higher system hardware port visit to the basement and DEMO source, this is not very good, I wrote a class, can make application does not require any driver would like Juan as the Win98 port visit, (the charges) with my intention to contact : 02388888 @ vip. sina.com Platform: |
Size: 20162 |
Author:寒雪 |
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Description: 本人在近期一电厂控制工程中，用户要求我们程序对数据要有自动保存和定期删除功能，因为我们以前是做 DCS 加强系统，DCS具有数据的自动处理功能，不需要我们做。为了满足用户需要，应用必须实现自动数据处理。本文下面就来介绍如何使用 VC 实现基于 ODBC 数据库的自动删除和存储。希望本文提供的方法对你有所帮助。
-I, in a recent plant control projects, We procedures require users to have data automatically preserve and regularly delete function, because we used to be done to strengthen the system DCS, the DCS with automatic data processing functions, we do not need to do. In order to meet user needs, the need for automatic application of data processing. Below this paper on how to use VC-based ODBC databases automatically delete and storage. We hope that this paper will provide a method for your help. Platform: |
Size: 88417 |
Author:周刘兵 |
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Description: 在使用VC、VB、Delphi等高级语言编写数据库应用程序时，往往需要用户自己在控制面板中配置ODBC数据源。对于一般用户而言，配置ODBC数据源可能是一件比较困难的工作。而且，在实际应用中，用户往往要求在同一个应用程序中访问不同的数据源，因此采用一般的加载方法就有了无法克服的缺陷。为能在程序中完成这一工作，方便应用程序的使用，本文以VC为开发环境介绍两种在应用程序中动态加载ODBC系统数据源的方法。-the use of VC, VB, Delphi and other senior language database application procedures, often require the user control panel configuration ODBC data sources. For general users, configuring ODBC data source may be a more difficult task. Moreover, in practical application, users often require the same application access different data sources, Therefore the use of the loading method alone can not overcome the flaws. In order to complete this process, facilitating the application procedures for the use, Based VC environment for the development of both on the application of dynamic loading system ODBC data source method. Platform: |
Size: 22629 |
Author:罗金生 |
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Description: This Source.zip has three application code folders containing .java and .class files and two .jar files as follows:
1. desktop-side_JXTA4JMS
2. mobile-side_JXTA4JMS
3. JMS Test Client
4. Listener.jar
5. JMSTestClient.jar
We now explain execution steps, we followed, to run this JXTA4JMS application.
Before we try we require Application softwares and need to configure JXTA relay and J2EE server.-This Source.zip has three application cod e folders containing. java and. class files and two. jar files as follows : 1. desktop-side_JXTA4JMS 2. mobile-side_JXT A4JMS 3. JMS Test Client 4. Listener.jar 5. JMST estClient.jar We now explain execution steps, we followed. JXTA4JMS to run this application. Before we try Application softwares we require and need to co nfigure JXTA relay and J2EE server. Platform: |
Size: 51713 |
Author:icedcoco |
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Description: Summary
Many control applications require converting some analog input to a digital format. The ADCINC12 User
Module is a general-purpose, 12-bit analog to digital converter (ADC) that does just that. This Application
Note is meant to be a simple introduction into its operation. The steps required to define, place, and write
software are presented. Examples are developed in both assembly and C. Platform: |
Size: 175979 |
Author:周东良 |
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Description: This Source.zip has three application code folders containing .java and .class files and two .jar files as follows:
1. desktop-side_JXTA4JMS
2. mobile-side_JXTA4JMS
3. JMS Test Client
4. Listener.jar
5. JMSTestClient.jar
We now explain execution steps, we followed, to run this JXTA4JMS application.
Before we try we require Application softwares and need to configure JXTA relay and J2EE server.-This Source.zip has three application cod e folders containing. java and. class files and two. jar files as follows : 1. desktop-side_JXTA4JMS 2. mobile-side_JXT A4JMS 3. JMS Test Client 4. Listener.jar 5. JMST estClient.jar We now explain execution steps, we followed. JXTA4JMS to run this application. Before we try Application softwares we require and need to co nfigure JXTA relay and J2EE server. Platform: |
Size: 52224 |
Author:icedcoco |
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Description: Summary
Many control applications require converting some analog input to a digital format. The ADCINC12 User
Module is a general-purpose, 12-bit analog to digital converter (ADC) that does just that. This Application
Note is meant to be a simple introduction into its operation. The steps required to define, place, and write
software are presented. Examples are developed in both assembly and C.-SummaryMany control applications require converting some analog input to a digital format. The ADCINC12 UserModule is a general-purpose, 12-bit analog to digital converter (ADC) that does just that. This ApplicationNote is meant to be a simple introduction into its operation. The steps required to define, place, and writesoftware are presented. Examples are developed in both assembly and C. Platform: |
Size: 176128 |
Author:周东良 |
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Description: 在这一节里，我们将以TMS320F2812片内外设的应用为主，介绍一部分以F2812 eZdspTM最小系统为基础的实验例程（部分实验需要进行硬件扩展）。这些例程源代码的主要部分都是采用C语言编写的。-In this section, we will TMS320F2812 chip peripherals application mainly on the part of with minimum system F2812 eZdspTM based experimental routine (part of the experiments require hardware extensions). The main part of the source code of these routines are written using C language. Platform: |
Size: 141312 |
Author:Roger Wong |
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Description: This example application requires several components to be setup and configured before running. It
is assumed that you understand how to setup a Web application and add the components below. Platform: |
Size: 44032 |
Author:livion |
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Description: This example program is the source code for the FT232BM Test Application from our Utilities page.
It can be used to test the handshaking lines on FT232BM based RS232/RS485/RS422 designs. This program can also be used for programming the external EEPROM over USB in a manufacturing environment. The test features require the test cable shown on ST_232_245.pdf to be connected.
Our D2XX direct drivers should be installed for this application. The code can be modified to fit your requirements.
To download the application source code , click here.
To download the test cable specification, click here.-This example program is the source code for the FT232BM Test Application from our Utilities page.
It can be used to test the handshaking lines on FT232BM based RS232/RS485/RS422 designs. This program can also be used for programming the external EEPROM over USB in a manufacturing environment. The test features require the test cable shown on ST_232_245.pdf to be connected.
Our D2XX direct drivers should be installed for this application. The code can be modified to fit your requirements.
To download the application source code , click here.
To download the test cable specification, click here.
Platform: |
Size: 53248 |
Author:madbana |
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Description: ConvertVB6toVB7:
This application does the form painting depending upon the VB6 from file.
It uses a XML file to get most of the changed Valued from VB6 to VB7
It relies mostly on the XMl file VB7.xml
we can make this program more generic as it s depends upon XML file for
data transfer.
The logic are mostly there and can be extended to perform most of the task
Some task are left.
The problem with VB7 is with Control Array
It is not handeld in the Program.
For this to run u require Viusal Studio.NET
Hapy new Year and best of luck.-ConvertVB6toVB7:
This application does the form painting depending upon the VB6 from file.
It uses a XML file to get most of the changed Valued from VB6 to VB7
It relies mostly on the XMl file VB7.xml
we can make this program more generic as it s depends upon XML file for
data transfer.
The logic are mostly there and can be extended to perform most of the task
Some task are left.
The problem with VB7 is with Control Array
It is not handeld in the Program.
For this to run u require Viusal Studio.NET
Hapy new Year and best of luck. Platform: |
Size: 31744 |
Author:吴建 |
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Description: 在 Microchip单片机上实现 TCP/IP（传输控制协议/网
际协议）不需要任何创新之举。感兴趣的开发人员可以
很容易找到许多 Microchip 产品的商业和非商业的
TCP/IP 实现方案。本应用笔记详细说明了Microchip 公
司自己免费提供的 TCP/IP协议栈。-Microchip microcontroller to achieve in the TCP/IP (Transmission Control Protocol/Internet Protocol) does not require any innovations. Interested developers can easily find a number of Microchip products, commercial and non-commercial TCP/IP implementations. This application note details Microchip' s own freely available TCP/IP protocol stack. Platform: |
Size: 473088 |
Author:ang |
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Description: 随着可编程器件(PLD) 密度和I/O 引脚数量的增加，对小封装和各种封装
形式的需求在不断增长。球栅阵列(BGA) 封装在器件内部进行I/O 互联，
提高了引脚数量和电路板面积比，是比较理想的封装方案。在相同面积
上，典型的BGA 封装互联数量是四方扁平(QFP) 封装的两倍。而且，BGA
焊球要比QFP 引线强度高的多，可靠的封装能够承受更强的冲击。
Altera 为高密度PLD 用户开发了高密度BGA 解决方案。这种新的封装形
式占用的电路板面积不到标准BGA 封装的一半。
本应用笔记旨在帮助您完成Altera 高密度BGA 封装的印刷电路板(PCB)
设计，并讨论：
■ BGA 封装简介
■ PCB 布板术语
■ 高密度BGA 封装PCB 布板-As programmable logic devices (PLDs) increase in density and I/O pins,
the demand for small packages and diverse packaging options continues
to grow. Ball-grid array (BGA) packages are an ideal solution because the
I/O connections are on the interior of the device, improving the ratio
between pin count and board area. Typical BGA packages contain up to
twice as many connections as quad flat pack (QFP) packages for the same
area. Further, BGA solder balls are considerably stronger than QFP leads,
resulting in robust packages that can tolerate rough handling.
Altera has developed high-density BGA solutions for users of
high-density PLDs. These new formats require less than half the board
space of standard BGA packages.
This application note provides guidelines for designing your printed
circuit board (PCB) for Altera’s high-density BGA packages and
discusses:
■ Overview of BGA Packages
■ PCB Layout Terminology
■ PCB Layout for High-Density BGA Packages Platform: |
Size: 391168 |
Author:acermouse |
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Description: 完整的防火墙工程 完整的防火墙工程 完整的防火墙工程 -NSPM- Network Security & Policy Manager?
This project was initially designed to provide an online interface to the Linux Netfilter/Iptables firewall, and this without prior knowledge of the related CLI commands and options. Different interfaces already exist but most of them require a fresh install of a specific Linux distribution such as the well-known IPCop, need an existing Webmin-like core component, or must be run under X environment. For those who want to keep their own Linux flavor, already have a panel of services running on their gateway, or need to easily and remotely administrate their firewall through a standard web browser, this application should fit their needs.
Platform: |
Size: 261120 |
Author:wangyongzhi |
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Description: 代码功能：将动态链接库注入已运行的进程
用途： 用于拦截API测试。
程序用于开发api拦截功能的辅助测试用，当开发了一个api拦截应用的时候，需要频繁的注入，卸载于某进程。
本工具可以使得工作更为方便的进行，如可直接启动notepad进程并注入指定的动态链接库（此dll名称写死于代码内
，但可以很容易的修改成可配置的方式，不过一般没有必要），当然，也可指定进程id来注入
当年做加密保护的时候，API拦截的部分经常需要做此种测试，故有此工具诞生了。
原理：用远程线程方式注入DLL，此种方法很稳定，代码也经受了长期使用的考验。
注意：默认的注入的动态链接库的名字叫mydll.dll, 详情请搜索源码，你当然可以改了它。-Code function: dynamic link library into a running processUses: used to intercept API test.Procedures for the development of API blocking the function of auxiliary test, when developing a API intercept application, require frequent injection, in a process of unloading.This tool can make the work more convenient, such as direct start Notepad process and injected into the specified dynamic-link library ( DLL name died within the code, but can easily be modified into a configurable manner, but is generally not necessary ), of course, can also be specified to process ID to injectWhen do encryption protection, API intercept part often need to do this test, it is this tool was born.Principle: using remote thread injection of DLL, this method is very stable, the code also undergo long-term use of the test.Note: the default into a dynamic link library name is mydll.dll, please search source code, you can change it. Platform: |
Size: 25600 |
Author:f |
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Description: 周立功指南针模块，电子指南针系统中磁场传感器的磁阻（MR）技术是最佳的解决方法，和现在很多电子指南针还在使用的磁通量闸门传感器相比较，MR技术不需要绕线圈而且可以用IC生产过程（IC-like process）生产，是一个更值得使用的解决方案。由于MR有高灵敏度，它甚至比这个应用范围中的霍尔元件更好。
PHILIPS半导体的KMZ52是一个两维磁场传感器，它是使用磁阻的作用以及其灵敏度和线性来测量微弱的地球磁场，且集成了置位／复位功能以及补偿线圈，这些线圈可以用翻转（flipping）技术消除偏移，用电磁反馈技术消除温度的敏感漂移。 -Weeks meritorious compass module, electronic compass system magnetic field sensor magnetoresistive (MR) technology is the best solution, compared to many electronic compass still using fluxgate sensor the MR technology does not require coil and can be used IC production process (IC-like process) production is a more worthy use solution. Since the MR has high sensitivity, it is even better than a Hall element in the scope of this application. The Philips semiconductor KMZ52 is a two-dimensional magnetic field sensor, it is the reluctance as well as its sensitivity and linearity to measure weak Earth' s magnetic field, and the integration of the set/reset function and the compensation coil, these coils can be used to flip (flipping) technology to eliminate the offset, sensitivity to temperature drift with electromagnetic feedback technology to eliminate. Platform: |
Size: 67584 |
Author:佚风 |
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Description: PMSM Electrical Parameters
Measurement-The vector control, also known as the field-oriented control
(FOC), of a permanent magnet synchronous motor (PMSM) is
the algorithm often used in today’s advanced motor control
drives. Such advanced motor control algorithms require the
setting of motor electrical parameters for its proper
functionality. This application note deals with the
measurement of electrical parameters needed for vector
control of PMSM. The electrical parameters are needed to set
the current PI controller gains to get the desired closed-loop
performance and for BEMF observer constants. The proposed
measurement techniques determine a number of pole pairs, a
stator resistance, synchronous inductances, and an electrical
constant with common measurement equipment. A summary
of PMSM sensorless control and explanation of motor control
terms can be found in [1 ]. Platform: |
Size: 2250752 |
Author:cx |
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Description: 基PIN管电路的设计，包括开关，衰减器和限幅器，可以应用在接收前端-This Application Note is intended to provide practical guidance in the selection of PIN Diodes for switch control
circuit functions. Switches, Digital and Analog Attenuators, and Limiters each have unique functions that require
proper device selection Platform: |
Size: 232448 |
Author:李春早 |
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Description: This application provides display and control of Android devices connected on USB (or over TCP/IP). It does not require any root access. It works on GNU/Linux, Windows and MacOS. Platform: |
Size: 233930 |
Author:b652923 |
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Description: This article presents the simulation results and analysis related to the response of the generators within a microgrid to- wards an accidental overload condition that will require some load shedding action. A microgrid overload can occur due to various reasons ranging from poor load schedule, Platform: |
Size: 801109 |
Author:fellahi79 |
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Search - this application require