FS26 LPOFF MODE

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FS26 LPOFF MODE

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abunayeeem
Contributor II

Hi,
We are using FS26 with S32k358.
In a recent batch, we are facing an issue that is causing an unwanted LPOFF state. After powering up the board we are not getting outputs at the regulators (VREF=5V,VLDO1=5V,VLDO2=5V,VCORE=1.5V). We programmed VBST for 8V,VPRE for 6V and VPRE_LP_OTP for 5.35V.

We are getting 5.35V at VPRE.
The RSTB is lOW and pulled up to VDDIO is 5V (VLDO1, currently not available).

In another post (link) in the community, we came to know that without any wake up event selected, the FS26 will be stuck until a power-on reset event. 

Now, what is the best way to come out of this state? what is the way to do a manual POR?

@TomasVaverka 



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guoweisun
NXP TechSupport
NXP TechSupport

Had replied to you based on your case.

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guoweisun
NXP TechSupport
NXP TechSupport

Had replied to you based on your case.

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