Study And Realization Of Embedded TCP/IP Protocol Based On μC/OS-Ⅱ And ARM

In recent years, research on connecting embedded system with Internet has become one of the focuses in applications of embedded system. The overall sharing of the global information resources is the development trend in the future and this research has met the trend. The implementation of TCP/IP stack in embedded system is the basis of the research.In this article writer probes into the ARM9,TCP/IP protocol and uc/os-II operation system at first, later transferμc/os-II into S3C24100, then compile TCP/IP stack. ADS which integrated with editor compiler, emulator and debugger as the development environment are adopted.The design of the tiny TCP/IP stack takes the TCP/IP reference model as the focus. First, in order to enable the protocol have the attribute transplanted, the parts related to the hardware, OS, the compiler independently comes out. This part needed to be revised when realized in the different operating system(hereμC/OS-Ⅱ). Then, the reliable stable data management module responsible for the data assigned, released, the merged and classified is designed. These data manipulations are frequently needed in the correspondence protocol realization., the body of the protocol stack is designed which includes the ARP module, ICMP module, UDP module and TCP module. Because of the intrinsic flaw in aspect of IP address, application limited, the quality of service, the management flexibility and the secure, the IPv4 cann't meet the demand of the development in the future. The Internet gradually will take IPv6 as the foundation for next generation Internet nearly is the inevitable major tendency. In order to adapt this kind of development tendency, the double protocol stack is designed. namely IPv4 and IPv6 coexist. In addition, in order to improve the security of the embedded system, the simple embedded IPSec protocol is also designed here, At last, the paper carry out the embedded TCP/IP protocol with the simplified scheme, and tests it. It can be seen, the paper describes a development process of the embedded TCP/IP protocol completely.