The Research Of Internet Technology Based On Embedded System

With the fast development of communication technic, network technic and semiconductor technic, Internet technic is filtering to Industry conirolling and the designing of embedded system gradually. Achieving mutual Internet is the hotspot domain and the important way of embedded system development. On the other hand, Internet has become one of the most important foundational information establishments of modern society. It's necessary to realize the remote control, the net measure of the parameters and the information share etc, so the realization of embedded TCP/IP protocol stack.is an important technology.The solution of connecting the eight-bit micro-controller and simplified 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 of the hardware and software and introduced the designing process of embedded industry control system based on μC/OS-Ⅱ and ulP and designed the frame work which could be used for most embedded devices.On Hardware aspect, we designed a network control system, which is made up of series MCU, Ethenret interface chip and interface circuits. On software aspect, according to the characteristics of the 8-bit MCU's limited resources, we have simplified the TCP/IP protocol family(UDP, ICMP, IP, ARP etc.)and made it run on the 8-bit MCU. In addition, in order to improve the reliability and ensure the stable running of the TCP/IP protocol stack, an embedded RTOS μC/OS-Ⅱ is introduced in the program designing. We also make the detailed introductions of the realization of TCP/IP Stack, the flowing-in and flowing-out system of interface function and data bag.This system can be an access to the Internet, process analog signals collection and remote transmission. After several months of designing and testing of hardware and software, we have achieved the primary aim. The accomplishment of this paper is a good foundation for the...