LIN (Local Interconnect Network)
It is a low-cost, short-distance and low-spped sub-bus system to complement CAN in application such as vehicle roof, vehicle doors, engine and seat.
The LIN protocol was introduced in 1999 is a 12V serial communications protocol.
In the LIN network, data are transferred across the bus in fixed form messages of selectable lengths.
The master node has these functions: defining transmission speed, sending synchronization pulse, data monitoring and switching slave nodes to sleep/wake mode.
The slave node will wait for synchronization pulse, synchronize using synchronization pulse and digest message identifier.
Only the master task is allowed to transmit the message header which carries synchronization and identifier information.
Only the slave task responds to this header with a data frame.
헤더(Header)와 응답(Response)로 구성
Ref)
http://www.fescaro.com/kr/insight/blog.php?code=blog&idx=8&bgu=view