A VLSI Implementation of a Proposed Modified Controller Area Network (CAN) Protocol for Car Automation

The design, simulation and implementation of a CAN protocol controller for the Car automation. A multimaster serial communication protocol. The CAN Controller designed will function as the interface between the anti-lock brake and other nodes of car automation system and the actual CAN bus. The RTL based design is implemented using Verilog HDL. Simulations are made at each level to verify the implementations. A CAN system sends messages using a serial bus network. With every node like anti-lock brake, Dash-board, Lighting, Airbag connected to every other node in the network, the need for a central controller for the entire network is made redundant. CAN being a multi-master communication protocol, engine-control anti-lock brake, dash-board, lighting, airbag all nodes in the system is equal to every other node. Any processor can send a message to any other processor. Even if some processor fails, the other systems in the machine will continue to work properly and communicate. with each other. Any node on the network that wants to transmit a message waits until the bus is free. Every message has an identifier, and every message is available to every other node in the network. The node selects those messages that are relevant and ignores the rest.