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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

Hello,

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.

 

Ekki

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