The Research And Realization Of TCP/IP Protocol Stack Under μC/OS-Ⅱ Environment

Embedded internet system is an emerging concept and technology which is developed in recent years, it refers to directly connect internet through the embedded equipment. Many domestic and foreign big companies establish organization to discuss and formulate the standard and the development related technology, it will be use in the long-distance monitoring, the data acquisition , the system reconstruction and so on.. This thesis is proposes under this background.This thesis constructs a embedded TCP/IP system based on theμC/OS-Ⅱ,On the basis of studying the TCP/IP protocols and the existing LwIP,UIP,other TCP/IP realizing methods. The system research the TCP/IP realizing process under theμC/OS-Ⅱoperating system, from the hardware and software section. In the hardware section, constructing the mini embeded system with the Freescale company chip of MCF5272 and RTL8201BL PHY of Realtek company,SDRAM,FLASH and other peripheral unit. In the software section, analysing the core section ofμC/OS-Ⅱ,the constructing of cross compiling environment,function and transplant of BootLoader,transplant ofμC/OS-Ⅱand TCP/IP basic knowledge,transplant of TCP/IP based on the LwIP,the driver program of network. The thesis do the work as follow:At first, talking about the basic knowledge and prospect about the embedded TCP/IP system. Then focusing on the core ofμC/OS-Ⅱand the transplant process ofμC/OS-Ⅱon MCF5272. And introducing some of TCP/IP protocol by some relation reference; emphasizing on TCP/IP transplant, illustrating card drivers program flow chart and giving an example. At last, the thesis has a summary.Throught the research onμC/OS-Ⅱand TCP/IP , a data collection system was invented. The thesis has provided a low cost and practical resolve project for data collection and controlling. It will be widely used in the embedded field.