上传者: htx1020
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上传时间: 2019-12-21 19:54:07
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文件大小: 1.68MB
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文件类型: pdf
本资料面向 LIN 总线初学者,对什么是 LIN, LIN 的特征,物理层、协议层及应用层相关规定进行说明。
本资料主要是针对 LIN2.1 讲解。
使用注意事项............................................................................................................................................. 1
1. LIN是什么? ......................................................................................................................................... 4
1.1 LIN子网(Cluster)与节点(Node) ............................................................................................................ 5
1.2 主/从机节点与主/从机任务.................................................................................................................. 7
2. LIN的特点 ............................................................................................................................................. 8
3. LIN协议层 ............................................................................................................................................. 9
3.1 帧的结构............................................................................................................................................. 9
3.1.1 同步间隔段(Break Field) ................................................................................................................... 9
3.1.2 同步段(Sync Byte Field) .................................................................................................................. 10
3.1.3 受保护ID段(Protected Identifier Field).............................................................................................. 11
3.1.4 数据段(Data Field)........................................................................................................................... 12
3.1.5 校验和段(Checksum Field) .............................................................................................................. 13