topic Re: S32K396 CAN Interrupt in S32K

S32K396 CAN Interrupt

Jason88619 — Thu, 30 Oct 2025 11:25:47 GMT

Hello everyone, I'm currently using the S32K396-BGA-DC1 development board and want to receive CAN messages via interrupts. My configuration is as shown in the attached image. However, this configuration fails to receive CAN messages successfully.

I would greatly appreciate it if anyone could point out my mistakes, provide a CAN + interrupt reception method, or a CAN + Rx FIFO reception method. Thank you in advance!

Re: S32K396 CAN Interrupt

Julián_AragónM — Thu, 30 Oct 2025 21:31:17 GMT

Hi @Jason88619,

From your main.c routine, I can see you are not initializing the interrupt controller driver. If you are using latest RTD, simply call the following function:

/* Initialize Interrupt */
IntCtrl_Ip_Init(&IntCtrlConfig_0);

There is no need to call IntCtrl_Ip_EnableIrq() & IntCtrl_Ip_InstallHandler(), as IntCtrl_Ip_Init() does call both of these functions.

There are some examples for FlexCAN implementation in community. Please see them below:

They are not based on S32K396 derivative, but configuration and main routine should be the same.

Best regards,
Julián

Re: S32K396 CAN Interrupt

Jason88619 — Fri, 31 Oct 2025 00:49:24 GMT

Thank you so much!