topic Re: s32k312 + fs26 control problem in S32K

s32k312 + fs26 control problem

NewbieNerd — Fri, 19 Jan 2024 05:38:57 GMT

Hello S32K3 team!
I am currently attempting to control FS26 on the S32K312EVB.

Whenever I query 'FS_STATE', 'REG_CORRUPT' is always in a high state. The calculations for all init_register and init_not_register values are consistent. Please inform me how to reset this state.
Even after successfully attempting 'WD_Refresh', it does not switch to 'Normal state' and remains in 'Safety Outputs not released' status. Is this related to issue number 1?
The system resets when I input the debug_mode_exit value. What could be the issue?

Regard

Re: s32k312 + fs26 control problem

guoweisun — Mon, 22 Jan 2024 05:39:31 GMT

Does the RSTB released? what about the ABIST/LBIST states?OK or not?

Re: s32k312 + fs26 control problem

NewbieNerd — Tue, 23 Jan 2024 00:08:53 GMT

Hello! guoweisun

When I read fs_diag_safety1 Address:

fs_states = 0xA

and

abist1_pass = 0x1,
abist2_done = 0x1,
abist2_pass = 0x0,
lbist_Status = 0x3

The behavior is the same whether lauch_abist2 is 0 or 1.

Re: s32k312 + fs26 control problem

guoweisun — Tue, 23 Jan 2024 03:03:11 GMT

I think you need release FS0B next,but before do that you need refresh WD till fault error counter decrease to '0'.

after release FS0B you will enter into Normal mode.

Re: s32k312 + fs26 control problem

NewbieNerd — Tue, 23 Jan 2024 05:42:12 GMT

After the FS State changed to the FS0B_ASSERT state, it was confirmed that the value of the Fault Error Count was 0. Then, when attempting to release FS0B and FS1B, the FS State immediately changes to FS_Init and then resets.

(Rel_State is the state after attempting to release FSxB)

Regard

Re: s32k312 + fs26 control problem

guoweisun — Tue, 23 Jan 2024 05:50:02 GMT

Please try to disable FCCU function and DISABLE the WD.

And also need confirm there is no any error for UV/OV monitor error,if have please clear these error.

Re: s32k312 + fs26 control problem

NewbieNerd — Tue, 23 Jan 2024 06:13:28 GMT

1. Does disabling the FCCU function mean changing the value of FCCU monitoring to No Monitoring? If so, we are currently in continuous testing.

2. Does disabling the WD mean changing the FS_State to FS_Init and then applying a WD_Period value of 0?

Re: s32k312 + fs26 control problem

guoweisun — Tue, 23 Jan 2024 06:22:30 GMT

Both of your questions,the answer are YES.

Re: s32k312 + fs26 control problem

NewbieNerd — Tue, 23 Jan 2024 06:57:04 GMT

Hi guoweisun

I read the values of the registers that were set during the process. Even without making any separate changes, the value of FS_State changes to Invalid after attempting to Release FSXB.

Regard

Re: s32k312 + fs26 control problem

guoweisun — Tue, 23 Jan 2024 06:58:25 GMT

Seems some monitor UV/OV error happened,you can read it out.

Re: s32k312 + fs26 control problem

NewbieNerd — Tue, 23 Jan 2024 07:25:41 GMT

Hi guoweisun

The FS_STATE still hasn't changed to Normal... The last two lines are the values after attempting to release FSXB. '1' is the value of the UV/OV State, and '2' is the value of FS_STATE.

Thanks to your help
Regard

Re: s32k312 + fs26 control problem

guoweisun — Tue, 23 Jan 2024 07:29:05 GMT

What's the fault error counter value?

Re: s32k312 + fs26 control problem

NewbieNerd — Tue, 23 Jan 2024 07:33:59 GMT

This is 'FS_I_FSSM' Register - [3:0]
It mesns 'FLT_ERR_CNT'

Re: s32k312 + fs26 control problem

guoweisun — Tue, 23 Jan 2024 07:35:26 GMT

The value of FLT_ERR_CNT should be decrease into 0.

Re: s32k312 + fs26 control problem

NewbieNerd — Tue, 23 Jan 2024 07:37:28 GMT

The current value is 0. Should I manually induce a fault and then decrease it back to 0?

Re: s32k312 + fs26 control problem

guoweisun — Tue, 23 Jan 2024 07:44:18 GMT

If the FLT_ERR_CNT is 0,you can release FS0B no problem then enter into normal mode.

Re: s32k312 + fs26 control problem

NewbieNerd — Tue, 23 Jan 2024 08:49:51 GMT

doesn't enter normal.

what should I check another register?

Re: s32k312 + fs26 control problem

Akhil1 — Mon, 05 Feb 2024 04:35:23 GMT

Hello @NewbieNerd ,

Can you provide the project zip, I am working on the SBC FS26 with s32k312 watchdog refresh.

It could me help for me.

Re: s32k312 + fs26 control problem

NewbieNerd — Mon, 05 Feb 2024 05:49:09 GMT

Hi Akhil1!

Thank you for your interest. However, due to company policy, we are unable to upload data.
and I Sovled this problem!
I think It is WD Refresh Data and timing problem.
first I tried 0xA43D, 0x4A9A, 0x9535 ~ WD refresh at Release FSxB before, and After acquiring the WD Token and applying the challenger formula, continuing the WD refresh did not result in any issues.

regard

Re: s32k312 + fs26 control problem

Akhil1 — Mon, 05 Feb 2024 05:54:41 GMT

Hello @NewbieNerd ,

I am yet to start SBC FS26 with S32K312 with RTD 2.0.3 version, I want to do the watchdog refresh for every 50 ms, how can I do it.

when I stop watchdog refresh...MCU should reset

How can I do it? could you please help me with this.