Based On The Design Of The Embedded Web Server With Sx52bd

With the increasing popularization of Internet and with the improvement of information sharing, how to share the information in small embedded systems centered on MCU through Internet, that is to say, how to implement the interconnection between embedded systems and Internet, has been a very popular research subject.After researching the status pro of embedded Internet technology and after analyzing and comparing the respective advantages and disadvantages of several methods, a method based on SX52BD microcontroller to implement an embedded Web Server is provided in this dissertation.The embedded Web Server designed in this dissertation is composed of SX52BD microcontroller, Ethernet controller RTL8019AS, Serial E~2PROM 24LC256 and RS232 Driver/Receiver MAX232. On the hand, SX52BD microcontroller communicates with embedded systems through RS232 Interface; on the other hand, it implements TCP/IP Lean, and communicates with Internet through RTL8019AS, HR901170A and Ethernet to implement the interconnection between embedded systems and Internet.How to implement the TCP/IP Lean in SX52BD microcontroller is the key to implement a Web Server. By analyzing the TCP/IP protocols deeply, this dissertation simplifies the TCP/IP Lean and only implements ARP, IP, ICMP and HTTP protocols. Thus, Remote users on Internet can visit this Web Server through Web Browser to monitor and control the embedded systems remotely.The Web Server designed and implemented in this dissertation has several advantages, such as low costs, small volume, high speed, good currency and good convenience. It is an excellent method to remote-monitor, remote-control and remote-diagnose systems, and it can be used in a lot of fields such as Information Appliance, Industrial Automation, Smart Instrument and Sensor Technique. So, It will have a wonderful applied perspective, and will also have good application and theory value.