How does the independent mask of the RT1061 CANFD correspond to the mailbox?

[TheSix]

In the RT1061's CANFD, the number of available mailboxes varies with the different data lengths that CANFD frames can carry. In this case, how does the independent mask correspond to the mailbox?

[Gavin_Jia]

Hi @TheSix ,

I think they are still one-to-one. As we can see in the code, the maximum number of mailboxes is still no more than 64.

Best regards,
Gavin

[TheSix]

I guessed so too.I tested it with actual code and it turned out to be the case. Unfortunately, the reference manual doesn't have a single word about this-_-.