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Communication between two FDCAN members and a third member transmit a CAN-FRAME which the two others should ignore. The thrid member ignores FDCAN-Messages

MSchn.14
Associate

Hello everyone,

I am using the NUCLEO-144 Board with STM32H743ZI.

I would like to test the FDCAN with three members. Two of them use the FDCAN. The third one is an uC which accept FDCAN but cannot do anything the message of the two others. If I send messages between the two NUCLEO-144-Boards everything ist fine. The ErrorCounter doesn´t increase. But if I put the thrid member to the communication the ErrorCounter raisis until the communication of the the NUCLEO-144-Boards stops. The thrid member transmit messages.

Does anybody has an idea? Or can it be that the FDCAN-Modul can´t work with the CAN-FRAME ?

Regards

Max

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