S32K312-Unable to disable reset threshold function

[Simon-Liu]

Hello

When using the DS tool to configure the Reset function, set [Functional Reset Escalation Threshold] to 0 in the [Power] component, that is, turn off the Reset Escalation Threshold function. Call the interface Power_Ip_PerformReset in the code to execute the Reset action. After 8 consecutive Resets, the MCU cannot be powered on.
Why can't the Reset Escalation Threshold function be turned off? How can I turn off this function so that the MCU can be reset infinitely?

BestRegards

Simon

[danielmartynek]

Hi @Simon-Liu,

Which version of the RTD do you use?

BR, Daniel

[Simon-Liu]

Hi @danielmartynek 

The information in the picture below is the version of RTD I am using, thanks.

BestRegards

Simon

[danielmartynek]

Hi Simon,

In your setup, you probably see this behavior because you don't power cycle the MCU.

The driver clears the FRET register after POR or a desctructive reset only.

My test project is attached.

Once the project is loaded, power-cycle the MCU and attach the debugger back without reset.

It will be stuck in the while(stop){} loop.

The stop variable can be cleared via the debugger once attached.

You should see that the Power_Ip_Init() clears the FRET register if DES != 0.

Regards,

Daniel

[Simon-Liu]

Hi @danielmartynek 

I learned that the registers FRET and DRET are used to set the Reset Escalation Threshold, so I set these two registers to 0 before restarting to disable the Reset Escalation Threshold. When I set the Power Reset Type to FunctionalReset, the MCU can always reset by calling the Power_Ip_PerformReset interface; if I set the Power Reset Type to DestructiveReset, the MCU will be stuck and unable to operate after calling the Power_Ip_PerformReset interface Reset 8 times.
What is the reason for this?

Looking forward for your reply, thank you.

BestRegards

Simon

[danielmartynek]

Hi Simon,

Your observation seems to be right.

The DRET register is cleared only after POR.

If you trigger a functional descructive reset, DES[F_POR] = 0.

But it should be cleared after any DES reset if the driver is configured with DRET = 0 (escallation disabled).

It has been reported to the RTD team,

Regards,

Daniel

[Simon-Liu]

Hi @danielmartynek 

Thank you for your answer.

I hope the RTD team can give the cause and solution of the problem as soon as possible.

BestRegards

Siomon

[danielmartynek]

Hi @Simon-Liu,

I'm sorry for the delay.

It is going to be fixed in this RTD version: BLN_RTD_4.7_S32K3XX_S32M27x_4.0.0

BR, Daniel

[Simon-Liu]

Hi @danielmartynek 

Thank you for your reply, please let me know when this RTD is released.

BestRegards,

Simon

[Simon-Liu]

Hi @danielmartynek 

Thank you for your answer.

I checked your project and found that your code is the same as mine. In the Power_Ip_MC_RGM_ResetInit function in my project, there is also the processing of clears the FRET register if DES != 0. The attachment is my project. Please help to find out where the problem is.

BestRegards

Simon