| Digital home network is called 3C system, which includes computer, communication and consumer technology. It connects all kinds of possible equipments to realize information switching and remote survey and control. If we take the research of home network gateway as a breakthrough, it is possibly that we can win a great advantage over other opponents in the future competition and gain great social and economic benefit.In this theme some vital problems of how to realize home gateway based on embedded Linux is put forward and researched. First of all some common-used embedded systems is introduced. We compare these systems and analyze the advantage and disadvantage of the home gateway constructed by Linux, and give the method to improve the real time ability. At the seem time the way of reducing the embedded Linux is introduced. Then common used file systems under embedded Linux are introduced. JFFS2 file system is analyzed in detail, and after that improved method is put forward. USB protocol is introduced, and USB device is built with software and hardware. Then example of USB driver of gateway device is given. After that we analyze the model of intelligent home gateway, and put forward the method of realize the home gateway, which includes software and hardware. Then introduce the security problem in the home gateway and the solution under Linux system. |
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