| Today, connecting embedded device with Internet is the trend of embedded system research. Internet has become an important base-information-establishment of our society. It's also an important manner of information communication. By connecting embedded device with Internet, information can be sent to anywhere of the world immediately and conveniently.First, this paper introduces the characteristics of embedded system, and summaries the features of embedded TCP/IP with these characteristics. Then, it starts the job of developing network card driver of RTL8019AS and simplifying standard TCP/IP protocol, and finally presents responding implementing algorithms in detail.Then, according to CGI standard, this paper presents a method of realizing embedded CGI web server under single-task operating system DOS. After insistent efforts for the past whole year, the expected outcome is achieved basically. It successfully realizes embedded CGI web server under DCS operating system on the basis of embedded TCP/IP designed beforehand. And, by connecting AD/DA data collection card and LEDs, correctness of this CGI server is validated.Finally, this paper introduces some test job for the whole system. Taking the standard desktop PC as the experimental machine, and the embedded computer as the target machine, the test job is carefully done for every part of the design by observing communication of the experimental machine and the target machine. Then, It presents some future improvements of this design.
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