| In recent years, the embedded technology develops rapidly, and all kinds of new embedded microprocessors and embedded products emerge one after another incessantly. As Intel's new high-end processor, based on Xscale architecture, PXA270 has superior multimedia processing performance.In this paper the embedded technology background and the characteristic has been introduced first .Then the PXA270 chip and Xscale frame principle has been studied, and embedded Linux systems been analyzed.This paper then describes the Design and Implementation of the video terminals based on PXA270. Firstly, this paper analyses PXA270 development board's hardware and interface principle,and start programming ARM Linux to the board; Secondly,the Redhat Linux OS will be installed on the homed-host, and the target board and homed-host be joined together; The third step is transplantting the video decoder player to the embedded development board,to enable it have the video playing capability;then,if a video sharing server based on windows OS be builed, the development board can play videos on the server through network.On this basis, this paper also briefly introduced the Bluetooth technology, and studied how to install Bluetooth module . Then Bluetooth function was added on the video sharing servers and PXA270 development board, the mobile video terminal was designed completely. |
