Design And Implementation Of Students End Of Wireless Digital Speech Teaching System Based On ARM9

With the rapid development of embedded system application technology and network communication technology etc, digital speech teaching system has developed greatly.At present,digital speech teaching with wired transmission medium which uses the TCP/IP technology is more popular.With the development of wireless networks,more and more systems using wireless communication technology are developed.Design and implementation of students of wireless digital speech teaching system combines the embedded systems development and wireless network technology, overcomes the hard wired cabling problems and higher costs, making the teaching system have more broad space of development and marketing.The teaching system in the paper is mainly used for teaching English in school, using existing technology and based on actual applications demand to implement a variety of functions in teaching.The system has been realized successfully by SAMSUNG S3C2440A microcontrollers, which real-time multi-tasking Windows CE.net and wireless module VNT6656G model are embedded in.This paper introduces the system development background and describes the structure of this article, describes the development platform to be built and customized and transplanted of the operating system, and then detailed introduces the system's overall' design,design ideas and structure of each module.What is more, it introduces the design and implementation of several communication protocols, it shows the detailed analysis and design of the component of embedded application.Finally, summary and recommandations for improvement and perfection are given.Due to time constrains, the function of the system software is limited,but it has basic teaching functions.with in-depth research,the function will be further improved,the software will increase it's competitiveness. It will benefit us greatly.