s32k3 Reset Escalation Threshold Register

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s32k3 Reset Escalation Threshold Register

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luhaiou
Contributor II

FRET,DRET are 0 in S32K3XXRM.pdf

luhaiou_0-1714015393732.png

But when I debugged, I found that the reset value was not 0

luhaiou_1-1714015719927.png

Please help explain this phenomenon, the debugging tool is PEmicro cyclone,thank you very much

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PetrS
NXP TechSupport
NXP TechSupport

Hi,

this seems to be correct. FRET reset value is 0xF as the RM indicates, and DRET can be changed by sBAF, see Figure 132 in the RM.

BR, Petr

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luhaiou
Contributor II

Hi,Petr

When I was testing the reset function, after 8 resets, the chip stopped working.

After investigation, it was found that the chip may have entered recovery mode.

luhaiou_0-1714283213221.png

 

When I assign the DRET/FRET registers, the chip still works fine after 8 resets after .

Power_Ip_pxMC_RGM->FRET = 15;
Power_Ip_pxMC_RGM->DRET = 0;

My understanding is that I didn't turn off recovery mode,

I just re-assigned DRET/FRET, why recovery mode doesn't work

BR,

Luhaiou

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