FDCAN configuration in STM32N6 Nucleo

[guillerminaborrazas]

Hi! I'm working on setting up FDCAN communication using the STM32N6570X0-Q Nucleo Board. However, when I try to modify the bit timing parameters—such as the Nominal Prescaler, Nominal Time Seg1, or Seg2—the baud rate doesn't seem to change regardless of the values I set.

On the receiving side, I'm using a STM32H533RE Nucleo Board to echo the messages, but it doesn't receive anything—so I suspect the issue may be with the timing configuration on the N6570X0-Q.

Do you have any idea what might be causing this behavior?

Thanks in advance!

[Mahmoud Ben Romdhane]

Hello @guillerminaborrazas ,

First let me thank you for posting and welcome to the ST Community.

Your request is under investigation, and I will get back to you ASAP.

Thanks.

Mahmoud

[Mahmoud Ben Romdhane]

Hello @guillerminaborrazas,

Thank you for bringing this issue to our attention. 

Issue has been escalated to dev team for resolution under this internal ticket 215362.

I will keep you posted with updates.

Thanks.

Mahmoud

[guillerminaborrazas]

@Mahmoud Ben Romdhane thank you for your quick response.

From what I’ve seen using an oscilloscope, the messages are indeed being sent at 1 kbit/s.

Hope the issue is resolved.

Guillermina

[guillerminaborrazas]

Hi! @Mahmoud Ben Romdhane is there any news on this subject? Thank you! 

[Mahmoud Ben Romdhane]

Hello @guillerminaborrazas ,

I will keep you informed as soon as this issue is resolved.

Thanks.

Mahmoud