Study Of Embedded System Based On ARM & UClinux

Smart terminal is a kind of personal digital assistant equipment, which is widely applied in the fields of electronics, communication and control etc. There are kinds of smart terminals in the local market, which have various standards.This can avoid being pirated effectively at the cost of inconvenience. The solution of embedded system with a high performance-price ratio based on the opens resources is given in the research.Hardware: CPU is Samsung S3C44B0X processor. Design the interface circuits of ethernet and LCD based on the minimum system, which meets the need of the basic hardware.Software: operation system is uClinux with powerful function and low cost.The basic thought is the same as: bootloader, custmosize linux kernel, drivers and application program. With the appearing of new materials and component of electrical properties, the job of embedded prducts pays more attention to details.There are four parts: the selection and design of the hardware, uClinux port, device driver port, system testing. In the software porting process, various equipments' drivers are the most critical.In the open source field. There are lots of hardware and software resources on Internet that is the contribution of the numberous engineers and amateurs, which is one merit of the embedded system design.