Based On The Arm-linux Embedded Systems Research And Applications

Embedded system has developed dramatically because it integrate computer, data communication, semiconductor and so on multi-technology, and adapt to the requirement of current electronic device which demand bulk, cost and the performance stricktly. Embedded system is different from former SCM(Single Chip Micyoco) system , it has own OS(operation system ), upper application program , function of network communication and the management of information.Now days the CPU of ARM architecture is processor which as used broadly in the embedded system. It used the RISC technology and owned the character of simple addressing method, large register and fixed length instruction. All of this make it process quickly and efficiently. Because it has the character of support of ARM technology, reduce kernel, strong network function and open resource code , linux is used into embedded system and can exert advantage of ARM and linux. This paper discuss several issues including: the character and the apply domain of embedded system, the implement mechanism of ARM technology, kernal property and system structure of linux, system structure of embedded uclinux and the difference of uclinux and standard linux.The end of the paper introduced several issues including transplant of uclinux system, uclinux kernel reduce for ARM structure , kernel recompile, implement flow and implement method of application program and device program. Lastly the paper added application program implement mechanism and implement code which use uclinux as network server.