1.1 基础概念 CAN的全称是Controller Area Network,译为控制器区域网络,是一种用于车辆、电力系统、工业设备等嵌入式系统的半双工异步串行通信协议和物理接口。CAN是一种事件驱动的通信协议,采用非主从结构,所有节点都可以发送和接收数据,而不需要主控节点。它支持多主机通信,具有优先级和冲突解决机制,能够实现高效的数据传输。CAN只需要两根信号线,这两根信号线通常采用的是双绞线
Let me start with the conclusion: Having recently disassembled the Model 3's headlight driver module, I was thoroughly impressed by its structural design, internal hardware solution, and PCB component