| Along with the Internet development and the latter PC time's arrival, Miniaturization of electronic products, smart became a trend and that is essential to intelligent operating system, so the embedded system has become the computer domain a important component, combines to make or become comes the emerging research hot spot this year.Application of embedded systems is now widely used in advanced engine management, security systems, set-top boxes, portable computers and high-end printers and other devices.This paper describes based on the embedded operating system, smart handheld devices as well as the analysis of the different CPU cores, as well as changes to U-boot in order to conduct a study on embedded systems.Describes the general concept of embedded systems ,development and the characteristic introduced ARM S3C2440E, which is the development board hardware core --ARM920T embedded processor. Simultaneously, discussed in detail the kernel source files linux2.6 structure and function of cutting, the modified configuration file, the process of cross-compiling the kernel and the kernel S3C2440E processor based development board to carry out key issues such as transplants. There are procedures to guide the loading of the U-boot source files to support a revision of the S3C2440E and the transplant process. |
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