串口调试精灵，对于初学ＶＣ＋＋的学者来说，这是一本不错的电子书，大家可以好好品味。...

串行口通讯控件源代码，可能用来进行RS232串行口的通讯工作，非常好用-Serial port communication control source code, may be used for RS232 serial port communications, very easy to use

/*CHECKED * Function: time.c Project: DNP * * * * DESCRIPTION: * * This file contains functions for converting between * DNP time format and RTU time format (rtc counter type). * * DNP format is to express the time in the number of milliseconds * since the start of 1970. * * * REVISION HISTORY: * * Num Modified by Date Reason * --- ----------------------- --------- ------------------------------- * * */ -/*CHECKED * Function: time.c Project: DNP * * * * DESCRIPTION: * * This file contains functions for converting between * DNP time format and RTU time format (rtc counter type). * * DNP format is to express the time in the number of milliseconds * since the start of 1970. * * * REVISION HISTORY: * * Num Modified by Date Reason * --- ----------------------- --------- ------------------------------- * * */

开发工具Keil ，采用单片机C8051F340。主要实现功能，通过485级联通信，采取上位机（串口调试软件）发码的方式，给各从机发指令，每个从机有固定的地址，从机接到指令后进行相应的操作并返回一串码。若发送的码有误，则返回错误指示码。

晶体管的型号命名，材料分类，结构，识别方法，使用方法。-Transistor model name, material classification, structure, identification methods, the use of methods.

一篇详细介绍高速数据调制解调技术，主要以QPSK信号为例，包括解调和定时，挺好的-A detailed introduction of high-speed data modem technology, mainly as an example QPSK signals, including demodulation and timing, very good

著名的串口构件，很容易自己使用，支持多线程。-Famous serial widget, it s very easy for use and sustain several thread.

opc协议规范-opc Protocol Specification

ppp协议英文文档.介绍ppp的和ldc等相关协议 好东西啊-ppp agreements English documentation. Ppp on the ldc and other related agreements, good things ah

安捷伦CDMA网络测试工具帮助，可以参考此工具的说明进行对网络维护和测试的学习。-Agilent CDMA network testing tools to help, they can refer to the tool descriptions of network maintenance and testing of learning.

USB HID通信程序示例显示了最基本的USB通信。并提供了一种沟通方式，你可以从一个脚本文件中读取指令，USB通信