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CTapp.1
CTapp.1
Senior III
March 26, 2026
Solved

Per-device CAN buffer capabilities

  • March 26, 2026
  • 3 replies
  • 250 views

Is there an easy way to find devices that support specific CAN buffer configurations?

For example, some only have receive queues whilst others allow a number of receive buffers to be configured (which is what I want). I know the H7x7 supports this, but does anything else?

Best answer by mƎALLEm

Hello,

To my knowledge there is no way to find that information in a simple way. 

The full configuration of FDCAN is available in STM32H7 family. 

So you need to check the RMs for each STM32 series.

 

3 replies

mƎALLEm
mƎALLEmBest answer
ST Technical Moderator
March 26, 2026

Hello,

To my knowledge there is no way to find that information in a simple way. 

The full configuration of FDCAN is available in STM32H7 family. 

So you need to check the RMs for each STM32 series.

 

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.
    CTapp.1
    CTapp.1Author
    Senior III
    March 27, 2026

    Also available in the STM32N6(57).

    All posts are made in a personal capacity. MISRA C++ Chair, MISRA C WG Member, Director The MISRA Consortium Limited (TMCL)
      mƎALLEm
      mƎALLEm
      ST Technical Moderator
      March 27, 2026
      @CTapp.1 wrote:

      Also available in the STM32N6(57).

      Yes. Generally speaking available in the highest performant MCUs: starting from H7 (currently):

      screenshot.png

      To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.
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