topic Re: S32R41 MCAL Configuration Issue in Other NXP Products

S32R41 MCAL Configuration Issue

caohaitao — Thu, 11 Dec 2025 02:27:46 GMT

How can I change the CAN peripheral clock from FIRC to FXOSC in the MCAL for the S32R41 chip?

I tried configuring the reference point for FXOSC in the MCU and then selecting the CAN peripheral clock to FXOSC, but the generated code remains unchanged—the CAN clock is still FIRC. I'm unsure how to modify the CAN peripheral clock to FXOSC within the MCAL configuration.

Re: S32R41 MCAL Configuration Issue

petervlna — Thu, 11 Dec 2025 14:14:44 GMT

Hello,

Could you share which exact driver versions you are using?

Best regards,

Peter

Re: S32R41 MCAL Configuration Issue

caohaitao — Fri, 12 Dec 2025 03:38:14 GMT

The RTD version I am using is “SW32R41_RTD_R21-11_1.0.0_HF01_D2308”. I have resolved this issue by modifying the CAN controller's clock source in McuCgmClockMux0. The McuClockReferencePoint associated with the CAN controller does not alter the CAN clock source.