S32K348 set lockcore

youngkin — Mon, 08 Dec 2025 01:57:42 GMT

hello,

I have three questions that need help to answer, thank you！

1. can you provide a lockcore sample

2. how can i verify the function ?

Re: S32K348 set lockcore

petervlna — Mon, 08 Dec 2025 07:44:01 GMT

Hello,

1. can you provide a lockcore sample?

Do you mean lock step programming example?

The S32K348 has dual Arm Cortex-M7 cores, but they are not automatically configured in lockstep. By default, they run in asymmetric or symmetric multiprocessing mode.

To switch it to the lockstep, you will program the DCF record - UTEST_MISC[LOCKSTEP_EN].

See the DCF clients file attached to reference manual document for more information.

For programming you can use this example in the thread:

https://community.nxp.com/t5/S32K/S32K344-Lock-step-kernel/m-p/1934901

2. how can i verify the function ?

You can check in the Read-Only GPR On Functional Reset 19 (DCMROF19) register.

DCM_GPR base address: 402A_C000h

DCMROF19-offset 348h

Best regards,

Peter

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S32K348 set lockcore

Re: S32K348 set lockcore