Design And Realization Of PDA Based On Windows CE

With the development of embedded technology based on the microelectronics and technology of network, all kinds of smart mobile devices have been widely used in people's production and people's life style. Especially, cellphone and multimedia devices are indispensable in our life. Rely on its strong function, supporting all kinds of application software, compact, more storage space and fast computation skill, PDA (Personal Digital Assistant) will be widely used in industry, agriculture, military and medicine.PDA is widely used in developed countries in Europe and America, but it was still on emerging stage in our country. There are still some problems in it. For example, the speed of processing is slow, human-computer interface is poor, function is single, and the extensibility is difficult. In such cases, Intel's PXA270 was adopted as the processor of the PDA's hardware platform. Microsoft's latest operating system Windows CE 6.0 was adopted as PDA's software platform. The PDA is integrated 128M NAND FLASH and 128M SDRAM. The PDA also has Micro SD, USB, LCD, Audio and Wi-Fi modules. It has a friendly interface, and it is multi-function and easily to expanded.In the development of the software platform, there is a study of characteristics, structure and functions about embedded Windows CE 6.0 operating system, and the paper introduces the use of development tools Visual Studio. It introduces the development process of embedded system Windows CE, frame of BSP including the development of BootLoader and OAL, and presents the process of the creation and customization about Windows CE system. It takes audio's driver development for instance to illustrate driver development of Windows CE, it also illustrates the storage management of SQL CE and the process that how pda can keep automatic data synchronization with server database, it implements an instance based on SQL CE and the instance is very suitable for hospital care. The PDA use Mircrosoft's new technology Sync Service to keep automatic data synchronization with server database and avoid "Information detached island", this is an innovation of the paper.The paper accords to the research project of medical PDA, analyzes the medical PDA in domestic and foreign markets, accords to the medical PDA's demand, considers PDA's commonality, scalability, and develop this product based on PXA270. The product embodies the following characteristics:1. Intel's PXA270 was adopted as the processor of the PDA's hardware platform. Microsoft's latest operating system Windows CE 6.0 was adopted as PDA's software platform.2. The PDA use Microsoft's latest embedded mobile database SQL Server Compact 3.5(SQL CE) which is in charge of mess data that is stored in PDA.3. The PDA use Mircrosoft's new technology Sync Service to keep automatic data synchronization with server database and avoid "Information detached island".4. The paper implements an instance based on SQL CE and it is suitable for hospital care, and provides details about how to design and develop doctor's advice management module of the PDA.