s32k144 rtc problem on vlps mode

cancel
Showing results for 
Search instead for 
Did you mean: 

s32k144 rtc problem on vlps mode

780 Views
建宽高
Contributor III

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

Snipaste_2018-07-02_14-10-35.jpg

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

Snipaste_2018-07-02_14-11-34.jpgSnipaste_2018-07-02_14-12-23.jpgTherefore, 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

Tags (1)
4 Replies

139 Views
danielmartynek
NXP TechSupport
NXP TechSupport

Hi,

Please use S32K1xx_RM_r.7.

The table has been updated.

pastedImage_2.png

Regards,

Daniel

0 Kudos

139 Views
建宽高
Contributor III

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

Snipaste_2018-07-03_09-16-41.jpg

0 Kudos

139 Views
danielmartynek
NXP TechSupport
NXP TechSupport

Hi,

Please refer to Table 7-8, S32K1xx_RM_r7.

pastedImage_1.png

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

Regards,

Daniel

139 Views
建宽高
Contributor III

thanks for your reply

0 Kudos