S32K344 & SBC & standby & reset

[HYJ]

hello 

I use S32K344 and SBC for sleep work,but the sbc can not enter to standby mode.

Disabling PLL is needed from the forum article but i flowed wtihout work for most times.

It only goes in once in a while, eg:mcu standby-->sbc is not standby-->mcu auto reset (first)-->sbc tandby && mcu standby (stable). current is lower in my acceptable,This condition is not stable.

when i closed standby clock, mcu enter to standby mode but sbc can not. mcu is stable and can not auto reset.

when i changed my code and init clock site and so on, mcu enter to standby mode without sbc, the current is also below standard.

What can I do to make MCU and SBC sleep and wake up stably.    Many thanks.

[TomasVaverka]

Hello,

Please see below an extract from the AN13850 regarding the transition to the Standby mode on FS26.

FYI, the AN13850 is classified as a Secure File (NDA required) and can be downloaded from:

https://www.nxp.com/products/power-management/pmics-and-sbcs/safety-sbcs/safety-system-basis-chip-wi...

I hope it helps.

BR, Tomas

[HYJ]

i'm worked as you say,but it dose't go to standby.by the way,i'm used fs2630 chip,and the function that goes to sleep is already wrapped. i set a point in my code to see that it set the val.i'm no way to set the chip go to standby mode right now.