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TMS320F280037C: MCAN transmission Acknowledgment

ghoast2024
Prodigy 150 points

Part Number: TMS320F280037C

Tool/software:

I'm wondering about MCAN frame transmission acknowledgment.
Is there a method to monitor the acknowledgment (ACK) of a transmitted frame?

After some research, I found the function:
MCAN_getTxBufTransmissionStatus(uint32_t baseAddr)

Is this function sufficient, or is there a more robust and reliable method to confirm the successful transmission of CAN frames?

  • +1
    TI__Guru**** 199346 points

    Hi,

    1. MCAN_getTxBufTransmissionStatus(uint32_t baseAddr) will tell if the message has been transmitted correctly or not. If it is transmitted successfully, the transmitter gets the correct ACK.

    2. Check LEC bit field of PSR register. If LEC=3, the message transmitted by the MCAN was not ACKed by another node.

    3. Monitor the waveform with a scope.