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DCAN TMS570LS1227 TX ERROR MessageBox

Jan Jak Russo
Prodigy 50 points

Hello.

I have 3 TX MessageBox: 1-3.

If the sending failed, how to determine which MessageBox transmitted at that moment.

In advance thanks.

  • 0
    TI__Guru 72500 points
    If the error is a parity error in the message RAM, you can determine which message by reading the message number in the DCAN PERR register. The other errors, stuff, form, ack, bit1, bit0 and CRC are more likely a result of a bus problem and are not tied to the actual message itself. The DCAN module will retry the transmission. If an error persists, you can check which messages have not successfully been transmitted by reading the appropriate transmission request registers .