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3.5.2 LIN Bus
The LIN protocol is short for Local Interconnect Network.
The Lin bus communication is very common in automobiles, it is low speed, there are multiple control devices
mounted on a network. It can contril non-safety-critical and low-speed devices on vehicles, such as wipers,
windows, mirrors, air conditioners, electronic seats, etc. LIN is single-wired, has high level and low level when
transmitting data, the high level is 12V, and the low level is 0V. The LIN bus generally has a sync header followed
by data. If there is only a signal from the sync header, it means that the device has not responded.
Use the SATO oscilloscope to test the LIN bus, the specific operation is shown in Figure 3-46:
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