For Automotive Electronics, Embedded Multi-processor System Design

Embedded system is a customized computer system with particular functions. It is widely applied in various fields due to its small size, low power consumption, low cost and high processing speed. There is far more applied amount of embedded system than of general-purpose computer. Embedded system has a widespread market perspective. At the same time, in some particular fields (such as aerospace, automobile, industry control), the embedded system plays the more and more important part.Auto electronics is the generatrix of the electronfying of auto application, electronic information technology and electronic technology. CAN (Controller Area Network) belonging to field bus comes in with speed development of auto electronics. CAN is a kind of serial communication network used to support distributed controlling and realtime controlling. It offers the strong supports in implementation of realtime and reliable communication between every nodes.This paper describes the theory foundation, system architecture, composition method of the embedded distributed system oriented auto electronics from a hardware perspective. And it designs hardware platform for embedded distributed automobile network, which is based on CAN bus and LIN bus, supporting OSEK/VDX and some embedded OS such asμC/OS-II,μCLinux. This involves the architecture of CAN-LIN layered automobile network, nodes designing, gateway (linking CAN and LIN) setting, external bus interface (CAN bus and LIN bus), peripheral communication interface (RS-232 and USB interface), DC-DC supply module etc.. This paper also briefly introduces OSEK/VDX which is a OS specification for auto electronics including interface standard, and different applications betweenμC/OS-II andμClinux in embedded system.Because of good universality and utility, this system can not only be used in automobile network design but also be transplanted into other industry...