SST的OPC客户端源代码，学习OPC客户端的好例子

三菱FX系列PLC通信手册.zip,欢迎下载。-Mitsubishi FX Series PLC communications manual. Zip, welcome to download.

TCP/IP的网络图，介绍了，TCP/IP 的结构。是初学者需要了解的很必要的网络资料，需要看的朋友，快下！-TCP/IP network, introduced the TCP/IP structure. Beginners need to know is a very necessary network information needs as a friend, under fast!

文章研究了一种在OFDM系统信道估计频域插值算法-Research article An OFDM system in frequency domain channel estimation interpolation algorithm

蓝牙bluetooth spi 下载线电路图原理图-Bluetooth bluetooth spi schematic circuit diagram download cable

在delphi下,通过并口对外控制设备,包含全部源代码.-In delphi through parallel external control equipment, including all the source code.

test 代码/*输出链表数据*//*建立链表*/-test code/* output list of data*//* the establishment of linked list* /

opc的例子,包括有vb.net和c.net -opc examples, including vb.net and c.net

TOP PORT (USB) 调试接口说明 本接口是利用PL-2303HX的USB转RS232的接口芯片设计实现了一个TTL(5V)的RS232串口，并且利用了PL-2303HX的2个GPIO口软件模拟了一个低速的I2C总线.该接口由USB接口提供5V电压，可自带2Kbit(24C02)数据备份EEPROM (单独读写通道,不占用I2C总线地址)。并可对外提供小于250mA的5V电压。尤其适合WIN-XP以后的没有并口和串口笔记本电脑。整机成本不到￥20RMB。 -TOP PORT (USB) interface debugging of this interface is the use of PL-2303HX the USB to RS232 interface chip design to achieve a TTL (5V) of the RS232 serial port, and use of PL-2303HX the two GPIO port software simulation of a low-speed I2C bus. The interface from the USB interface to provide 5V voltage, can bring their own 2Kbit (24C02) data backup EEPROM (separate read and write access, do not occupy I2C bus address). And may provide less than 250mA of 5V voltage. WIN-XP is particularly suitable for subsequent parallel and serial no notebooks. Machine costs less than ￥ 20RMB.

华为tcp/ip培训ppt，可以下载简单参考-Huawei tcp/ip training ppt, can download as a simple reference

这个文档主要是介绍GSM协议的内容，是官方的03。38版本。-this document is to introduce the main GSM the contents of the agreement, is the official 03. 38 version.