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如图所示,芯片在睡眠模式下,发送的第一帧唤醒报文无法将TCAN1145唤醒,第二帧才能够唤醒1145使INH拉高。
请问是否是MCU未正确配置TCAN1145?应该关注哪些寄存器?
注:两帧CAN报文内容一样,且发现CAN总线在接收到第一帧报文后,如果840ms未接收到第二帧唤醒报文,CAN总线将会重新下拉到GND ,因此需要发送两帧小于840ms间隔的唤醒报文才能唤醒TCAN1145.