Research And Realization Of Bluetooth ADSL Modem

Customer access network is an important part of telecommunication network, the last one mile of the information high-way, as well as an application bottleneck that influencing transmission velocity in recent years. Today, Internet is developing with high speed. For incresing the speed of customer access network, people put forward many technologies of broadband access. DSL is one of the main technologies, which can resolve the problem that is called "the last one mile".The embedded system mentioned in this paper is made up of MCU, ADSLModem, and Bluetooth. The achieved work mostly includes MCU embedded system, interface of standardization communication, software of monitoring system, and so on. Therefore, this study analyzed a realizing method of uC/OS-II, realization of task segment and task scheduling, and LPC2290 that transplants uC/OS-II to ARM7TDMI. It discussed how to scissor normal TCP/IP and embed it in uC/OS-II. It developed hardware modules and corresponding software modules, including signal collection subprogram, communication program. It embedded every module program into uC/OS-II to realize task communication and scheduling, in order to realize the function of sub-computer.Finally, the experiment and debugging of the whole embedded system is finished. The results show that the system can implement expected measurement , data communication. It has characteristics of easy expansion, fast processing speed, telecommunication, high reliability, etc.