| In recent years, with the rapid development of electronic technology, auto electronics degree has become more and more advanced. Especially when introducing the idea of embedded system design into auto field, the reliability and intelligence of automotive electronics developed rapidly with distinctive achievements. In automotive systems, as the main platform for the information exchange between driver and car, automotive instrumentation most directly represents the current status of vehicle. However, during the present time, most of the automotive instruments adopt the analog instruments of electro-mechanic. A few automotive instruments are only partially used in digital. In order to overcome the shortcomings of the traditional electro-mechanic instruments, digital automotive instruments which are going to gradually replace the conventional electro-mechanic instruments will become the dominant technology of automotive instrument display in the future time. So the technology has a very broad market prospects.In light of this situation, the main contains of this paper is to design an Automobile virtual instrument platform which makes driver to get a thorough understanding quickly about auto operating condition. The ECU of Automobile virtual instrument platform based on S3C2440A of AMSUNG embedded ARM920T microprocessor core can satisfied the requirements of the project.At the same time, we also take account of the shortcomings of traditional automotive, such as low reliability, too much wiring harness and difficult to repair in electronic communications. The system as a automotive CAN bus node, through the CAN controllers and transceivers to collect engine speed, vehicle speed, cooling water temperature, fuel and other vehicle information, which are analyzed and calculated by the S3C2440A processor sends these information to LCD screen display.On the other hand, in order to ensure the platform to have a good human-computer interaction interface, we choose the user interface support system MiniGUI which is suitable for embedded system developers and has powerful, lightweight, perfect graphics and user interface support features.Based on the analysis and research of Chinese current situation and development prospects of automotive instrumentation, we further discussed the global structure of this system platform, completed to build the embedded hardware platform and the design of circuitry design related. We used the open source Linux to complete the basic debugging of the Hardware circuit, including the program of Boot Loader designed, the portability of Linux and the development of driving Program related. In addition, we discuss how to use MiniGUI to achieve user interface program, including the display of virtual automotive instrument and visualization radar for backing the Car.The main module of the system include:embedded processor, memory, clock module, CAN data acquisition module, USB interface module and the LCD display. Through the development and research, we realize to build the virtual instrument platform for automotive structures based on the embedded Linux. Finally LCD makes full use of MiniGUI to display the auto parameters collected which are analyzed and calculated by S3C2440A in digital graphical way.
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