CAN总线应用层协议有什么用?

具体一点,最好有示例。我的邮箱是631091546@qq.com
2025-02-27 03:48:23
推荐回答(1个)
回答1:

使通信双方收发的数据有意义

例如ab约定3f是 晚上出去约会
a把3f发给b 代表a要约b

比如 这个是不是用滤波器的协议

五个字节装帧
字节1 字节2 字节3 字节4 字节5
地址 命令 数据 结束标志
地址:0~65535 0x0000为主机 地址中不能出现0xff
结束标志 0xff
命令 或 命令返回
01 加载主频 04 加载安装年 08
F1 查看主频 F4 查看安装年 F8 查看使用年
02 加载脉宽 05 加载安装月 09
F2 查看脉宽 F5 查看安装月 F9 查看使用月
03 加载周期 06 加载安装日 0A
F3 查看周期 F6 查看安装日 FA 查看使用时
07 加载安装时 0B
F7 查看安装时 FB 查看使用时

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