Per-device CAN buffer capabilities

CTapp.1 · ‎2026-03-26

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?

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mƎALLEm · ‎2026-03-26

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.

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View solution in original post

mƎALLEm · ‎2026-03-26

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 on "Accept as Solution" on the reply which solved your issue or answered your question.

CTapp.1 · ‎2026-03-27

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 · ‎2026-03-27

@CTapp.1 wrote:

Also available in the STM32N6(57).

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

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