I read the question/solution about QM version VR5510 running state.
https://community.nxp.com/t5/Other-NXP-Products/How-to-make-PMIC-as-NORMAL-FS/m-p/1487114
At the solution, TechSuppot said that QM version VR5510 can not enter NORMAL_FS.
It means that QM version VR5510 running state is INIT_FS.
if QM version VR5510 running state is INIT_FS state, I wonder whether INIT_FS register can be configured anytime.
Using QM VR5510(MVR5510AMMA4ES) and S32G2 M-core, when I configured INIF_FS register(FS_I_SAFE_INPUTS/TIMING_WINDOW_STBY) after 1024 ms from power-on, INIF_FS register was configured normally.
I wonder INIT_FS registers initialization time for QM VR5510.
Solved! Go to Solution.
Hello,
Thank you for using the NXP community.
There is no maximum configuration time of INIT_FS for QM VR5510 device. No WD refresh is needed for QM part.
Standby mode can also be entered in INIT_FS state.
You can ignore the FS states after INIT_FS state.
I hope this information helps.
Regards,
David
Hello,
I hope all is great with you. Thank you for using the NXP communities.
You are correct, after POR or a wake-up from Standby mode or Deep Sleep mode, when the RSTB pin is released, the Fail-Safe State Machine enters into the INIT_FS phase for initialization.
Please find further information about the writing process at chapter 22.3 from datasheet.
I hope this information helps.
Regards,
David
Thank you for the explanation.
My question is What is QM VR5510 maximum configuration time of INIT_FS registers(FS_I_xx register).
For ASIL level VR5510, INIT_FS registers maximum configuration time is Watchdog Init Timeout(WD_INIT_TIME_OTP) in the INIT_FS state.
What is the QM VR5510 INIT_FS registers maximum configuration time?
Is it Watchdog Init Timeout(WD_INIT_TIME_OTP) or is there no maximum configuration time?
Hello,
Thank you for using the NXP community.
There is no maximum configuration time of INIT_FS for QM VR5510 device. No WD refresh is needed for QM part.
Standby mode can also be entered in INIT_FS state.
You can ignore the FS states after INIT_FS state.
I hope this information helps.
Regards,
David
Thank you for the answer.