How to determine the reset cause between external pin reset and internal reset on the S32K

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How to determine the reset cause between external pin reset and internal reset on the S32K

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Contributor I

How to determine the reset cause between external pin reset and internal reset on the S32K?

During the internal reset, the reset pin was set to low for about 500 us.

In the case of an external pin reset, how long should the reset pin be set to low?

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3 Replies

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NXP TechSupport
NXP TechSupport

Hi Ken3,

Each reset source has an associated field in the Reset Control Module (RCM) System Reset Status (RCM_SRS) register.
You can check the vaule of RCM_SRS.

25.2 Reset.png

Best Regards,
Robin

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Contributor I

Hi Robin,

 

Thank you for your reply.

Is there a min-max specification for the length of the Low signal applied to the reset pin during power on?

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NXP TechSupport
NXP TechSupport

I only find this: WNFRST is the recommended external reset low pulse Min.

WNFRST.png

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