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这个您可以看一下ISO1042的数据手册
这里的MCU是指集成了CAN收发器的MCU吧,比如C2000系列或STM32单片机,但MSP430系列均不集成CAN控制器,而ISO1042只是个收发器(transceiver),CANbus拓扑如图:
msp430可以用mcu+外部控制器的方式,会更方便一些