CAN Rx locks all values to FF when HW is connected

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CAN Rx locks all values to FF when HW is connected

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Poley
Contributor V

Hi, I had my system working fine sending from CANalyzer but now I have connected another board to send CAN to my S32K148 board and the messages don't seem to be received properly.

I can see on CANalyzer that the external board is sending data with the correct values but echoing what the S32K board is receiving back onto CAN shows that it is just receiving FF's. I don't know whether it is just locking up or something else. Makes no sense.

Thanks

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