testUSB

杨建国老师的通讯原理课件，第三章模拟信号的调制与解调，主要讲述信号产生与调制，射频特性，解调，MSK、GMSK、PSK、QPSK、BPSK、QAM等原理(Yang Jianguo teacher communication principles of courseware, the third chapter of the analog signal modulation and demodulation, and focuses on the signal generation and modulation, the RF characteristics, demodulation, MSK, GMSK, PSK, QPSK, as BPSK, QAM and other principles of)

本文系统的介绍了TQ2440开发板相关知识，对这方面的读者很有作用。(This article describes the system development board TQ2440 knowledge, useful in this respect the role of the reader.)

说明：  TCP/ip通讯客户端的程序。VB程序编写WINSOCK控件应用(TCP/ip messaging client program. VB programming WINSOCK Control Applications)

this file is used to activate app on startup of nokia mobile.

使用VC对并口进行访问和控制的VC程序示例，该程序完全用API完成(parallel to the use of VC visit and control procedures VC example, the procedure is totally complete with API)

华为内部员工学习资料，对于想进华为的朋友会有很大帮助。(The internal staff s learning materials in huawei is more helpfull for someone who want to go huawei.)

说明：  基于modbus rtu封装的通讯协议，很好用(Communication protocol based on Modbus RTU encapsulation)

说明：  PLC动态库 vb编程 支持s7-1200(PLC Dynamic Library Support s7-1200)

The PCI Local bus concept was developed to break the PC data I/O bottleneck and clearly opens the door to increasing system speed and expansion capabilities. The PCI Local bus moves high speed peripherals from the I/O bus and places them closer to the system’s processor bus, providing faster data transfers between the processor and peripherals. The PCI Local bus also addresses the industry’s need for a bus standard which is not directly dependent on the speed, size and type of system processor. It represents the first microprocessor independent bus offering performance more than adequate for the most demanding applications such as full-motion video.(The PCI Local bus concept was developed to breakthe PC data I/O bottleneck and clearly opens the doorto increasing system speed and expansion capabilities.The PCI Local bus moves high speed peripheralsfrom the I/O bus and places them closer to the system sprocessor bus, providing faster data transfersbetween the processor and peripherals. The PCI Localbus also addresses the industry s need for a bus standardwhich is not directly dependent on the speed, size and type of system processor. It represents thefirst microprocessor independent bus offering performancemore than adequate for the most demandingapplications such as full-motion video.)

利用ADM4017实现空调系统压力的采集（蒸发压力和冷凝压力) ,利用ADAM4018实现热电偶的温度采集。包含了曲线显示，数据存储功能，自定义温度标签功能。(this applicaion is used to get the temperature and pressure of the HVAC system by ADAM4017 and ADAM4018. include the cure print, the data storage and user defined label for 8 channels temperature.)