How to correctly configure CAN Rx Mailboxes Mask Register in MPC5748G?
I want to receive message with specific ID .For instance 0x000，0x111，0x222 and so on.
- The can configuration is as follows：
- The can_fifo_config is as follows:
- I send message to my device from ID 0X000 to ID 0X7FF，while the device receives something that is not in my expectation.
It seems that the mask highest bit is not in effect.
0 - 400：
0000 0000 0000
0100 0000 0000
44 - 444：
0000 0100 0100
0100 0100 0100
111 - 511：
0001 0001 0001
0101 0001 0001
Because of the RX FIFO,it is right that to configure the CAN_RXFGMASK as 0x1fffffff. [0:28]
However there are some mistakes in somewhere.
Then I force CAN_RXFGMASK to be configured as 0x3fffffff. It does work.
Is there some mistakes in my knowledge?
where is mistake？Please inform me in detail .