How to receive communication from multiple CAN IDs with one RX MAILBOX

jwjung — Wed, 21 Aug 2024 07:40:27 GMT

i'm using s32k312 chip.

i tried to Receive CAN message which has specific id value.

from now on, i used flowing paragraph on the CAN initialize() block

FlexCAN_Ip_ConfigRxMb(INST_FLEXCAN_2, CAN2_RXMAILBOX, &rx_info, 0x3c2ul);

I tried to get multiple CAN ID values messages from one RX MAILBOX, but it didn't work as expected.(not only 0x3c2ul )

I know that if I use 0x00, can receive messages of all CAN ID values in mcu, but it doesn't work properly.

(FlexCAN_Ip_ConfigRxMb(INST_FLEXCAN_2, CAN2_RXMAILBOX, &rx_info, 0x00);)

Please share how to receive multi CAN ID values(range or anyway) and to receive all of the CAN ID message.

Thank you.

Re: How to receive communication from multiple CAN IDs with one RX MAILBOX

Senlent — Thu, 22 Aug 2024 02:20:59 GMT

you can take a look at this routine by petr.

also you can take a look at this article regarding how to set flexcan mask bit for S32K1.(this is for S32K1 but also amolst same for S32K3)