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TCAN1145-Q1: Can Transceiver can't wakeup after entering in sleep mode

Hossam Afifi
Prodigy 60 points
Part Number: TCAN1145-Q1

Tool/software:

Hello TI,

I'm using can transceiver TCAN1145, When sending PNC not correct, The CAN Trcv enter in sleep mode and ecu go to shutdown but when resend NM messages with PNC correct CAN Trcv can't detect it and can't wakeup, I have configured selective wakeup which shown in below. My question is why CAN trcv can't detect PNC after entering it in sleep mode and how to fix this issue ?

 

Thanks

Hossam Afifi

  • 0
    TI__Mastermind 28030 points

    Hi Hossam,

    Please make sure to clear all the interrupt registers before the step that entering sleep mode. In the case that CANINT and FRAME_OVF are set, i.e too many error frames received, it may prevent the transceiver from being waked up.

    Let me know if this works.

    Regards,

    Sean