S32K中的主题回复： How to test the lockstep function based on s32k358

How to test the lockstep function based on s32k358

BillWen — Mon, 05 May 2025 00:58:51 GMT

Hi :

Currently, I try to implement lockstep function, and according to the following question on NXP community, I also get the same value.
https://community.nxp.com/t5/S32K/Detecting-S32K358-Lockstep-Pairs/m-p/2045711?utm_source=chatgpt.com

My question is that how to test and check the lockstep status when system trigger core0 and core1 have something fault?

Thanks

BR, BillWen

Re: How to test the lockstep function based on s32k358

petervlna — Mon, 05 May 2025 12:00:40 GMT

Hello,

Not sure if I understand your English correctly.

how to test and check the lockstep status when system trigger core0 and core1 have something fault?

Lock step status is reflected in DCM_GPR.DCMROF19.

If there is fault in system, it will logged in FCCU module NCF_S register.

Best regards,

Peter

Re: How to test the lockstep function based on s32k358

BillWen — Mon, 05 May 2025 23:42:27 GMT

Hi Peter:
Thanks for your reply.
I know the DCM_GPR.DCMROF19 value is about lockstep enable or disable.
I means how to test lockstep function besides SAF tool from NXP? For example, can I add some code to test lockstep? If it possible, then I just need to get NCF_S register value?

Thanks
BR, BillWen

Re: How to test the lockstep function based on s32k358

petervlna — Tue, 06 May 2025 06:22:08 GMT

Hello,

I do not know about any method to test the lockstep functionality by invoking and error.
Let me ask internally if such is possible.

I will feedback you ASAP.

Best regards,

Peter

Re: How to test the lockstep function based on s32k358

BillWen — Thu, 08 May 2025 00:34:40 GMT

Hi Peter:
Thanks for your reply.
As I know, there are two way to test lockstep including SAF and SPD. I can try SPD in the first, do you have any experience about this drivers?

Thanks
BR, BillWen

Re: How to test the lockstep function based on s32k358

petervlna — Mon, 12 May 2025 06:16:52 GMT

Hello,

To test the lockstep functionality of K3 series, SAF software package sCheck for RCCU could be referred. RCCU is a hardware module for lockstep check while sCheck could inject error to RCCU using EIM.

Best regards,

Peter

回复： How to test the lockstep function based on s32k358

BillWen — Mon, 12 May 2025 06:41:45 GMT

Hi Peter:
Thanks for your reply.
Last question, how about SPD for testing BIST or eMCEM? According to the following picture, both SAF and SPD provide Bist and eMcem function, is there any different between SAF and SPD of BIST and eMcem? Our company need to consider about these solution for ISO26262 or others in the future. Do you have any suggestion? Thanks.

Thanks
BR, BillWen

回复： How to test the lockstep function based on s32k358

petervlna — Tue, 13 May 2025 05:59:56 GMT

Hello,

According to the following picture, both SAF and SPD provide Bist and eMcem function, is there any different between SAF and SPD of BIST and eMcem?

SAF is extension of SPD. There is no difference in MIST and eMcem between them from SW point of view as far as I know.

Best regards,

Peter

回复： How to test the lockstep function based on s32k358

BillWen — Tue, 13 May 2025 08:20:11 GMT

Hi Peter:

Thanks a lot for your help.

Thanks
BR, BillWen

S32K中的主题 回复： How to test the lockstep function based on s32k358

How to test the lockstep function based on s32k358

Re: How to test the lockstep function based on s32k358

Re: How to test the lockstep function based on s32k358

Re: How to test the lockstep function based on s32k358

Re: How to test the lockstep function based on s32k358

Re: How to test the lockstep function based on s32k358

回复： How to test the lockstep function based on s32k358

回复： How to test the lockstep function based on s32k358

回复： How to test the lockstep function based on s32k358

S32K中的主题回复： How to test the lockstep function based on s32k358