一种低功率SSB收发信机的设计，从别处看到的，应该有用，分享之...

关于一些OPC的资源,提供出来大家共享!-some of the OPC resources to provide up share!

大五码和简码互相转换-big yards and five yards interchangeable SR

这是一个拼图游戏，可以自己指定图片进行游戏，用vb开发的小程序-pieces of the jigsaw have their own designated pictures games, with vb development of small programs

启动 上传资料的详细功能、包含内容说明(至少要20个字)。尽量不要让-restar

基于可编程跨导运算放大器POTA低通有源滤波器设计。该文给出了基于可编程跨导运算放大器(POTA)的有源滤波器设计方法，能在一定范围内实现跨导值程控调节, 提高调节精度和准确度。并且利用Jacobi 法求解相似对角形矩阵，避免解高次方程的难题。所设计的有源滤波电路不易受分布电容的影响，稳定性好、灵敏度低。本文给出了设计实例，显示了该方法的优点。-Based on programmable transconductance operational amplifier POTA low-pass active filter design. In this paper, based on the programmable transconductance amplifier (POTA) of the active filter design method that can realize in a certain range transconductance value of program-controlled adjustment, improve precision and accuracy regulation. Jacobi method and use a similar matrix of angular, high-equation solution to avoid problems. Designed active filter circuit less susceptible to the effects of distributed capacitance, good stability, low sensitivity. In this paper, design examples, showing the advantages of the method.

ARM7程序烧写工具，可以适用于多个公司的Flash芯片烧写，操作简单-ARM7 procedures burning tools can be applied in a variety of Flash chip burning, simple operation

完全使用ADSI实现域管理的工具.好用,但没有源码.-Full use ADSI to achieve the domain management tools. Easy to use, but no source code.

智力拼图，又称魔板游戏，4*4的方格组成，15个字母，一个空格，要求玩家移动方格把字母排成字母表顺序，上下左右和回车控制。-intellectual puzzles, board games also known as the devil, 4* 4 components in the box, 15 letters, a box requiring mobile box put players line up in alphabetical order of the alphabet, from top to bottom and around the transport control.

OPC Client Demo.实现了OPC客户端。能有效连接SERVER-OPC Client Demo. Realize the OPC client. Can effectively connect SERVER