System function
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The synchronization of the LIN bus takes place at the beginning of each message transmitted by the master. This results in a so-called "self-synchronization" of the data bus without a quartz given clock.
Components on the LIN bus, which correspond to the specifications of the data protocol LIN V2.0 have an extended scope.
- The components for V2.x are delivered with a device id and basic configuration. The final (dynamic) configuration and the allocation of the identification number takes place during the start-up via the master control unit.
- The data protocol has become more variable. As of specification V2.0, if desired, sporadic messages are also permitted in addition to the periodic messages.
- The master control units can transmit so-called multiple queries to a group of slaves. In order to reduce the load on the data bus, the addressed slaves only respond when values are modified (e.g. door contact).