在FPGA或CPLD上实现的一中非常实用的倍频电路，只要输入频率高，精度就很高...

好东西，大家快来下，值得一看的东西，受益匪浅

一个三接变压器符号控件，可以进行消息通信。-Then a three-symbol transformer control, messaging can be conducted.

AT89C2051作为分站或从机与AT89C52总站或主机通讯，双方均有RS485接口 ， AT89C2051用T1作波特率发生器, 波特率为9600，分站地址可设定（00-127）， 配套总站或主机AT89C52通讯程序为TONGX3.C-AT89C2051 as a sub-station or from a machine with AT89C52 terminal or host communications, both RS485 interface, AT89C2051 with T1 for baud rate generator, the baud rate for 9600, sub-station addresses can be set (00-127), supporting AT89C52 terminal or host communication program for TONGX3.C

键盘显示程序，高手请指点，多多指点啊-Keyboard display program, expert advice, please, a lot of pointing ah

philips系列产品之USB中的HID测试小程序

这是一个简单m序列，可用于通信电路中，仅供参考-This is a simple m sequence, can be used for communications circuits, for reference only

凌阳条码扫描程序，有关的识别条码的方法可根据自己的需要查看用户手册进行修改-Sunplus barcode scanner, the barcode identification method can be according to their need to check the user manual modification

Excel的操作,其中可以读取及写入Excel 文件-Excel operation, which can read and write Excel files

DSPack is a set of Components and class to write Multimedia Applications using MS Direct Show and DirectX technologies. DSPack is designed to work with DirectX 9 on Win9X, ME, 2000, and Windows XP operating systems. Now VMR (Video Mixing Renderer) is available on all Windows Operating Systems. DSPack 2 is designed to work with Delphi 5,6,7 and CPP -DSPack is a set of Components and class to wr ite Multimedia Applications using MS Direct Sh ow and DirectX technologies. DSPack is designe d to work with DirectX 9 on Win9X, ME, 2000, and Windows XP operating systems. Now VMR (Vide Mixing Renderer o) is available on all Windows O perating Systems. DSPack 2 is designed to work w Delphi 5, 6, 7 and praxiology CPP

一个用MFC编写的进程内组件示例程序，包括所有的源代码。-a prepared with MFC components within the process of sample procedures, including all of the source code.