The Study And Implementtation Of Embedded Internet Based On Uclinux

Ethernet-based telecontrol is a necessary trend in control field. And embedded Internet is a key problem in it. In recent years, embedded system has been widely used and computer network technology has developed a lot. With this trend, embedded Internet booms up. Embedded system, such as industry devices, information household appliances and personal communication products, will become more intelligent and need to connect to Internet. This demands more and more non-network equipments to connect to Internet. Through Web browser users can at any time or at any place control on-the-spot data and equipments. Embedded Internet is this kind of technology of making embedded equipment insert Internet. The job of this text is to adopt ARM chip and uClinux operating system to realize embedded Internet technology.In the first section of this paper, we introduce an excellent operating system-uClinux, which has an outstanding network performance. And we put up a developing and compilation environment on a host computer for it. Then we introduce how to compile a kernel. The microprocessor we use is S3c4510B, which has an Ethernet controller build in. As for the hardwire on the target board, we mainly recommend the power source, JTAG, Flash, SDRAM, Ethernet and serial port. In the network technology, we introduce the TCP/IP and HTTP protocols, which are the basic protocols for network communication. Then we introduce embedded Web server, build a Boa Web server and complete dynamic Web technology. This makes it possible for client to communicate with computer. We introduce three examples, which are typical and realized through driver, to summarize all this work. The control to the led on the target board indicates we can connect simple equipments to Internet through I/O ports. Communication with serial port extends the function. It shows this can even introduce a light network. At last, we introduce the SU200's ethernet reform project under exploitation.