| With the development of network era, Internet has become the most important foundational information establishment, so more and more devices need to be connected in Internet, but the solutions for such devices as embedded microprocessor vary a lot. The solution for connecting the 16/32 bit micro-controller and tidy TCP/IP protocol stack in Ethernet, which are selected according to the specification of the device, is described in detail in this thesis. We designed the framework which could be used for most embedded devices and introduced the hardware and software of the system. Problems which should be paid special attention to when designing the hardware is also written up. In order to increase reliability of the system and ensure the well running of TCP/IP stack, μc/OS—Ⅱ is introduced during software designing. In this paper, We describe the task scheduler mechanism of the realtime operating system μc/OS—Ⅱ and discuss the problems which we can meet in transporting OS to S3C44B0X,how to embed the TCP/IP protocol stack in μc/OS—Ⅱ in detail. In succession, the realization of all layers of TCP/IP protocol stack, interface functions , flowin&flowout mechanism of data pack are described particularly. At the end of the paper, Hypertext transfer protocol HTTP is described in detail, and a method to realize Embedded Web Server in SCM system is given. |
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