The Data Transmission Technology Based On WIFI And Ethernet

With the development of the Internet today, Ethernet communications technology and people's daily lives, and has become the mainstream of information communication, so the WIFI. In the field of industrial control, the CAN child birth, the development of more than two decades, technology has improved steadily, car from the initial starting areas, and now deep into every aspect of our lives. This article in order to achieve Ethernet and CAN bus communications has made a lot of research.In the article beginning on the Ethernet, CAN bus and WIFI in the development and application at home and abroad, as well as three kinds of communication protocols and technical specifications for a detailed description and analysis, while, according to the user's request, through UART As a bridge, proposed design.Key part in the middle of the article, use with TCP/IP embedded chip C02128SEC, realized UART to Ethernet function; use WIFI module C02128 achieved through Ethernet to WIFI function; using ATMEL AVR MEGA128 chip of ATMEL company designed UART to CAN functionality and stability of each module is tested and analyzed. Which also involves the choice from the chip, the hardware circuit implementation, AT+i and so the Ethernetguage describes the preparation of the development process and methods.The rear of the article, focusing on the system tested, and the problems that remain unfinished work and the analysis and proposed solutions and further research directions.This article design several modules, such as the installation of a MAX232 level converter chip, you can easily achieve RS232/RS485 to Ethernet/WIFI /CAN functionality and simple setup can be achieved several communications approach combined with a high useful.