Receiving duplicated FDCAN messages STM32N6

guillerminaborrazas · ‎2025-09-03

Hello,

I am working with the FDCAN peripheral on the STM32N6 Nucleo Board. While logging all received and transmitted messages, I noticed that some messages are received twice.

Is there a specific reason for this behavior? Should I introduce a delay before reading the RxFIFO again?

Thank you in advance for your support.

Best regards,

Guillermina

mƎALLEm · ‎2025-09-03

Hello,

Are you sure the message are not physically duplicated on the bus? did you check that with a CAN analyzer or an oscilloscope?

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