The Design Of Digital Automotive Dashboard Based On Mbedded Linux

Automotive dashboard is the process of the car in motion to provide the driver intuitionand important information exchange window, at the same time, it plays a vital role for car’ssecurity and economic driving.With the development of embedded hardware platform and software applications, thedesign of automotive dashboard systems start using the embedded GUI. Combiningembedded Linux operating system with embedded GUI technology, the subject designs abasic interface of a car on digital dashboard, and something on the speedometer,tachometer, fuel gauge and water temperature meter interface. In order to watch the carinterface display on embedded hardware platform and the operating results, we finally goon the design of the simulation test program.The design of this project is embedded hardware platform based on the higher cost ofS3C2440core processor with embedded Linux operating system. It uses Qt/Embedded asthe embedded GUI development tools, the3.5-inch LCD screen as a car dashboard displayterminal. On the basis of the analysis of system architecture, it tells the details of thehardware platform of the car all-digital instrument interface; Build-up of embedded Linuxoperating system, including the production of the BootLoader transplantation, LinuxKernel cutting and transplantation and how we make root file system; To build Qtdevelopment environment, PC development environment and the set-up of Qtcross-compiler environment are important, also the completment of Qt/Embedded onMini2440transplantation plays an important role; To add embedded Linux systemhardware drivers, means we should add the main LCD display and touch screen drivers.With the ending of the build-up of the hardware and software platform, we can designterminal interface of automotive dashboard.