Research And Design Of Multi-service Access Server--Central Control Module And Service Interface

Through the research on the embedded system technology and the special communication requires of electric power enterprises, paper brings forward a technical scheme which is suitable for practical demand of electric power system. In the paper, we select the embedded micro-processor Coldfire 5307 as system core. With it, the central control module is designed, and then be expanded with serial and Ethernet circuits. Through the study on Linux ,we chose the embedded operating system uClinux as software platform of the system, much work is focused on uClinux's process and memory management mechanism determines the performance of the system. At last, a study on the development of the driver of serial interface and Ethernet interface on uClinux is made to have those expanded interfaces run correctly .All the codes are assembled successfully.