S32144-LOC

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S32144-LOC

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Junkie
Contributor I

May I ask if the S32K144 software does not operate properly and triggers SOSCERR to be set when the SOSC clock monitor is turned on? I tried entering (all) low power modes after turning on the clock monitor, and I can see that SOSC becomes invalid (SOSCVLD=0) but no SOSCERR is generated.

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lukaszadrapa
NXP TechSupport
NXP TechSupport

Well, I can't see simple way how to inject this error by software. As you mentioned, for test purposes such error is usually injected by shorting of OSC circuit in hardware.

Regards,

Lukas

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lukaszadrapa
NXP TechSupport
NXP TechSupport

Hi,

I'm not sure if I can understand the question but clock monitors should not be used in low power modes:

lukaszadrapa_0-1660033659856.png

Regards,

Lukas

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Junkie
Contributor I

Yes, it is mentioned in the reference manual that SOSC monitor cannot be used in low power mode. But my purpose is to cause a LOC error to reset the MCU, I caused the LOC error by shorting the external SOSC crystal to ground, but is there a way to use software? I've tried going into low power mode to cause the LOC error but it doesn't work.

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lukaszadrapa
NXP TechSupport
NXP TechSupport

Well, I can't see simple way how to inject this error by software. As you mentioned, for test purposes such error is usually injected by shorting of OSC circuit in hardware.

Regards,

Lukas

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Junkie
Contributor I
OK, thank you very much.
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