CAN message acceptance filter and mask

[pranav_prabhu]

I would like to know how to calculate acceptance filter and mask values for extended IDs in KEA128 MCU

[xiangjun_rong · Accepted solution]

Hi,

There are two banks of CAN receiver ID acceptance filter as the rectangle registers which can function for Extended ID filter(29 bits) and standard ID filter(11 bits). The MSCAN_CANIDARn is the ID that the CAN module wants to accept, the MSCAN_CANIDMRn include the mask bit.

The MSCAN_CANIDAC[IDAM] defines the filter mode.

For the acceptance pls refer to section 32.4.5 Identifier acceptance filter

Hope it can help you

BR

XiangJun Rong