configuring the CAN of STM32H723 using STM32CubeMX

[zzzaizz]

  I don't use this Tx Buffers Nbr. Instead, I use this Tx Fifo Queue Elmts Nbr for sending. The difference between the two is just that one is manually sent and the other is sent by hardware, right? Why does the software give me a pink prompt for Tx Buffers Nbr, stating that the number of Tx Buffers Nbr plus the number of Tx Fifo Queue Elmts Nbr must be 32? What does this mean? Help me, I'm about to cry.I don't use this Tx Buffers Nbr. Instead, I use this Tx Fifo Queue Elmts Nbr for sending. The difference between the two is just that one is manually sent and the other is sent by hardware. Why does the software give me a pink prompt for Tx Buffers Nbr? The number of Tx Buffers Nbr plus the number of Tx Fifo Queue Elmts Nbr must be 32. What does this mean? Help me, I'm about to cry. God!

[zzzaizz]

Add some additional information regarding the software's prompt messages.

[zzzaizz]

Must the total number of Tx Buffer and Tx FIFO Queue be exactly 32?

[mƎALLEm]

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@zzzaizz wrote:

Must the total number of Tx Buffer and Tx FIFO Queue be exactly 32?

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Yes, and I don't have the issue with CubeMx 6.17 like you had:

Sorry I'm not able to share the screenshot (there is an issue with that feature)

Edit: screenshot shared below in a separate post.

[mƎALLEm]

[zzzaizz]

The chip I'm using is the STM32H723. My question is: Must the combination of these two be 32?

[mƎALLEm · Accepted solution]

Same configuration on the same part number:

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@zzzaizz wrote:

My question is: Must the combination of these two be 32?

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Yes

[zzzaizz]

thanks！！！