Browse Publications Technical Papers 2002-01-1298
2002-03-04

Implementing Local Interconnect Network (LIN) Slave Nodes 2002-01-1298

As the Local Interconnect Network (LIN) standard gathers more automotive industry interest, it is gaining strength as a likely standard for SAE Class A networking needs. European auto makers are embracing LIN in ever increasing numbers, even abandoning many other formerly competing Class A solutions, and the manufacturers in the United States are also beginning to take notice of this standard.
The driving thrust of LIN is its ability to create low-cost Class A system solutions. In this master-slave based system, the majority of nodes are slave nodes. It is therefore critical to reduce, wherever possible and appropriate, the cost of slave node implementations. Lower cost slave nodes should yield the greatest reduction in system cost due to the number of slave nodes in the system.
This paper explores the different ways a LIN slave node can be realized in an automotive LIN network. The concepts and principles, however, stretch beyond the automotive space and could include any applications in which LIN might be used to communicate between devices. As the options are analyzed, the issues of relative cost, application categorization, application complexity, manufacturability, and design trade-offs will be discussed. In the end, there is a need for all types of LIN slave node implementations and the purpose of this paper is to present the possibilities, advantages and problems associated with each.

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