s32k144 rtc problem on vlps mode

[建宽高]

hi,I want to know whether the internal real-time clock can run under VLPS mode?

First, I checked the s32-rm (rev4) data

1. on P1367 

Power, clocking, and reset

The RTC is an always powered-block that remains active in all low power modes

That is, it works in all low power modes

2. on P955

In powermanage, RTC in VLPS mode is off state,off Module and clock sources are disabled, and off represents the block clock source prohibition

Therefore, I don't know whether RTC can work in VLPS mode, so I have done relevant experiments to prove whether VLPS continue to time from run-> lvps-> RUN ,

Whether to continue timing in mode on vlps

I have shown that both external crystal oscillations and internal real-time clocks within the internal clock source are valid

[danielmartynek]

Hi,

Please use S32K1xx_RM_r.7.

The table has been updated.

Regards,

Daniel

[建宽高]

thanks for your reply,I wonder what that means about Async operation ,

[danielmartynek]

Hi,

Please refer to Table 7-8, S32K1xx_RM_r7.

All the other clock sources (LPOCLKS[RTCCLKSEL]) are gated off in VLPS.

Regards,

Daniel

[建宽高]

thanks for your reply