The Software Design Of Handheld Terminal Systerm Based On Windows CE.NET

With the rapid development, in IT technology, the functions of handheld terminals are no longer limits at handling personal business, with its functions being more powerful but price declines day and day, which make handheld terminals to use more and more widely in each professional field. There are many applied cases in some fields, such as public security official, insurance, hospital and so on. In our country, it has been applied in limited fields, but the needs of people are huge, so the hardware and software development of handheld terminals are very meaningful. This dissertation is mainly on the software design and research of handheld terminals. The customized of embedded system on S3C2410 platform and the design of mobile teaching management system have been completed.According to the characteristics of the system, hardware adopt S3C2410 platform which kernel is ARM920T. Compared with several popular embedded systems in nowadays about Symbian,Palm OS,embedded Linux and Windows CE. NET, then Windows CE. NET embedded operating system is applied at last. After the hardware platform is certain, the next task is to transplant the operating system to the hardware platform, which is also a process that rewrites the BSP essentially, which important part of it is the design of device driver. The device driver of Windows CE. NET was deeply researched and designed in this dissertation, take the design of touchpad device driver and serial port device driver as an example to introduce. Windows CE. NET driver can divided into native driver and stream interface driver model. We can take two methods of monolithic driver and layered driver to develop. So if we want to develop device drive, we should judge the driver model at first, then analysis which method to use. When the BSP is completed, we can custom the system image according to need. The system is run on hardware finally.The application design of handheld terminal use Visual studio. NET platform. The design of SQL Server CE and the correspondence of the backstage SQL Server database were completed. The system adopt RDA technique to complete synchronous with the backstage database. The development of the application is on the emulator, then downloader it to the hardware and run successfully. The system is very common in used, it can be used to other fields if we expand the hardware and software of the system slightly. So it has very widely applied prospect.