TCAN1145-Q1: 型号：TCAN1145DMTRQ1

Hi Yongfeng,

Yongfeng Zhang said:

要拔掉主机电源几分钟后，重新插上电源发唤醒报文才能起来；

After POR, the device will first enter standby mode, thus there's no need for a wakeup event.

Yongfeng Zhang said:

然后CAN总线重新发唤醒报文一直起不来是什么问题；

Is that a wake up pattern? Or they were using selective wake up? Please note that a valid wake up pattern need to be dominant-recessive-dominant with each state time >  tWK_FILTER. Did their WUP meet this requirement?

Did INH pin output high after receiving wakeup message? If VIO or VCC is not presented after entering standby mode for tUVFLTR, the tUVSLP timer will start. Once it expires the device will go back to sleep mode.

Would you please to include some waveform captures?

Regards,

Sean