Embedded Ethernet-based Access Control System Designed And Implemented

Along with the network Technology developing and popularization, the Embedded Ethernet Technology got a quick developed,it makes Ethernet be apply in industry control became impossible. This topic realizes the embedded Ethernet entrance guard system, based on ARM platform.This topic realizes function of entrance guard system based on Ethernet system data communication. First, introduced the superiority of Embedded system and Embedded Ethernet in many fields. after, introduced the advantage using RTL8019,em4095 and s3c44b0 to design this system in cost performance,programming,design efficiency. Through designed embedded Ethernet entrance guard system hardware circuit, debug embedded Ethernet entrance guard system to realized Ethernet data communication by programming and on this basis debugging the Ethernet entrance guard system.Though this topic design and realization an entrance guard system by Ethernet data communications, used assembler language has very good code execution efficiency. The modular design reduces the programming design complexity, improved device reliability; it can easy to maintenance and expansibility. Chip design of S3C44B0(CPU)+RTL8019 +EM4095 has good value, fit for large-scale production. Widely used in the school, community, supermarkets. It has a very well developing in the information society.