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F2812 的eCAN模块BusOff 状态辨别



你好: 我现在用F2812的eCAN做通讯,测试的时候把CAN(收发芯片:TJA1050)的CAN_L和CAN_H2根线短路,这时候肯定是进入了BusOff状态,但是我查了寄存器CANES.bit.BO还是0,只是CANES.bit.CCE=1,CANES.bit.ACKE =1,CANMC.bit.CCR=1. 那么我怎么通过寄存器的状态位辨别BusOff状态呢? 谢谢