Design And Realization Of Pocket PC On PXA270

With the advance of computer technology, communications technology and microelectronics technology, embedded technologies have made rapid development. From MP3, PDA such small size of products to intelligent household appliances and machine tools, embedded technologies rapidly penetrated into all walks of our life. The popularity of computer networks and the development of multi-media technology accelerate the consumer electronics, computer and communications platform in a integrated trend, and make embedded technologies as a new hot spot of study. Mobile entertainment, mobile office and mobile commerce not only become a new kind of consumer demand, but also a new consumption trend. Currently, Intelligent PDAs available in the market are difficult to fully meet these functions; while traditional notebooks have a big size and excessive power consumption. Designing a new embedded product to meet the market demand is an issue highly anticipated in economy.Based on this objective, through the functional requirement analysis in the product market position, this paper put forward the embedded micro-notebook solution. From hardware and software aspects, we analyse the function and the realization principle of the system. Hardware aspect includes: power supply, bus equipments, man-machine interface module, serial and USB interface module; Software aspect mainly discusses bootloader, drivers and the development of OAL layer. Through analysis, we completed the design of basic function module of Pocket PC and product characteristic module, such as HUB, WiFi, hard disk, and keyboard. Thus, We have achieved an embedded mobile platform which integrates the Internet, entertainment, office, business function.Finally, the picture of the system is given as an example. Through the Microsoft CETK test and practical application, the system fully realized the design requirement and all the features of the embedded micro-notebook.