topic Re: F32K144 in S32K

F32K144

ScottXing — Wed, 06 Mar 2024 15:02:51 GMT

Hi Guys，I got a F32K144UTA0VLLT，and I found that When confogure its CAN0 to CANFD mode .

FDEN can not be set to 1 when CAN0 is Freeze Mode( HALT =1,FRZ=1).

My question is: Does F32K144UTA0VLLT do not support CANFD? (my friend told me that，but I haven't find any proof from offical document)

Re: F32K144

Julián_AragónM — Wed, 06 Mar 2024 22:12:01 GMT

Hi @ScottXing,

S32K144 does support CANFD:

do you have FRZACK set as well to indicate module is truly in Freeze mode? Even if both FRZACK and FRZ are set 1, but FDEN still cannot be set to 1, you can try to change FDEN within debugger directly, while in Freeze mode.

Best regards,
Julián

Re: F32K144

ScottXing — Thu, 07 Mar 2024 01:07:08 GMT

Thank you Julián，I try to debug again with MDK :

I found that when FRZACK==1，FDEN can not be changed to 1 within debuger directly.

It still bothers me.

Re: F32K144

Julián_AragónM — Thu, 07 Mar 2024 21:30:15 GMT

Hi @ScottXing,

Please try the CAN FD example from the AN5413: S32K1xx Series Cookbook – Application Note.

Chapter 2.10.3.2 includes an example on CAN FD initialization.

Best regards,
Julián