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CAN message acceptance filtering -- C_CAN on-chip driver

Question asked by Ekkehard Bönisch on Oct 18, 2016
Latest reply on Oct 20, 2016 by Ekkehard Bönisch


does anybody know how the message filtering works, using the C_CAN on-chip driver?

In the example  from "nxp_lpcxpresso_11c24_periph_ccan_rom" there is written value 0x700 to the mask register and 0x400 to the mode_id register, to accept message with id's from 0x400 to 0x4FF.

But still I could not figure out e.g. how to create an acceptance filter range from 0x100 to 0x129? 

What is the logic relation from mode_id and mask register to accept message id ranges???

I apreciate any hint.