Design And Implementation Of Rearview Mirror Control System Based On LIN2.0 Sub-bus

Based on the recent increasing development for car bus technology, it is very important to make use of car bus technology to reduce car track tie inside and decline cost, thus the control of a car is humanized and the intelligent More. Technology of the Field Bus CAN (Controller Area Network) has promoted the development of modern technology of automobile electronic greatly. LIN (Local Interconnect Network) Bus arises at the historic moment is a low speed serial bus protocol,which is primarily intended for modules like window, door, switch panel and light etc. LIN bus which as the sub-bus of CAN, with CAN bus form the car's layer network configuration. The configuration supplements the deficiency of CAN Bus, and has comprehensive potential.The technology of LIN bus, the function description and function analysis are introduced in the thesis. According to the aforesaid contents, we have confirmed the hardware chip and software developing instrument. Hardware component selection is based on industrialization; we adopt Motorola MC68HC908EY16 as Micro-controller, also used MC33689, MC33874 and MC33972. In the design of hardware system, we respectively designed master node and slave node, reserved circuit node and draw the PCB of hardware circuit. The system software adopted structured program design technique, we respectively compiled program module for master-to-slaver communication from protocol layer, API interface and application layer. At last we give anti disturbance measures.Having finished all the design work, we entered the phase of debug and test the system in the scene. The result of test in the scene proved that the door LIN Bus control system could be operated inerrably, and its performance is good. The system can communicate with the other CAN Bus systems of automobile body correctly, which realize the required function of the automobile body system well. To the technological field of automobile electronic, the rearview mirror controlled system based on LIN Bus network of design in this paper is an innovation. This technology appears its applied potentials with the intelligent development in the field of the automobile electronic.