STM32 CAN bus accepts nonmatching addresses

[Tee]

Hey there!

I am testing the communication between 2 STM32H7 custom-made boards using CAN bus (chip: SN65HVD230).

My issue is that both ends communicate (Transmit and receive) despite the configuration filter IDs (1 & 2) I am setting. I also tried to block nonmatching addresses using this function: HAL_FDCAN_ConfigGlobalFilter, but it blocks reception from all addresses.

Any ideas?

[Sarra.S]

Hello @Tee, 

Could you share you Rx filter configuration and the input parameters of the global filter configuration

Thank you!