AnsweredAssumed Answered

FlexCAN Message Buffer Clarification

Question asked by Benjamin Schroeder on Apr 19, 2016
Latest reply on Apr 21, 2016 by EARL GOODRICH

I've been researching how to utilize the FlexCAN interface for the MK61FX512VMJ15, and need some clarification about about how many message buffers are actually supported.

 

With the documentation going back and forth on using the terminology "message buffer", "mailbox" and "MB", it has become very difficult to understand the reference manual.

 

I don't plan on using the RxFIFO.  I plan on configuring buffers to be specific to a certain ID mask.  How many of these buffers can I enable?  Is it only 16, or are there more available if I disable RxFIFO?  I have a need to support around 50 unique IDs.  Now, they come at regular intervals, so I could dynamically change the mask, but this is less than ideal.

 

Can anyone provide any insight?

Thanks!

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