AnsweredAssumed Answered

i.MX8Mmini EVK SNVS RTC can't backup

Question asked by Apollo Chang on May 10, 2019
Latest reply on May 12, 2019 by Wigros Sun

Hi

 

 

We test CPU SNVS RTC backup function. When we set "reboot" command.

We see CPU date in first login time.

 

BSP is Linux-4.14.78

We use 4.14.78 default demo image

 

 

 

Log file

 

NXP i.MX Release Distro 4.14-sumo imx8mmevk ttymxc1

 

 

imx8mmevk login: root
Last login: Fri May 10 10:22:35 UTC 2019 on tty7
[   10.340923] audit: type=1006 audit(1557483758.779:3): pid=3700 uid=0 old-auid=4294967295 auid=0 tty=(none) old-ses=4294967295 ses=2 res=1
root@imx8mmevk:~# date
Fri May 10 10:22:41 UTC 2019

 

~~~ Wait about 1 min

 

root@imx8mmevk:~# date
Fri May 10 10:23:42 UTC 2019

 


NXP i.MX Release Distro 4.14-sumo imx8mmevk ttymxc1

 

imx8mmevk login: root
Last login: Fri May 10 10:22:35 UTC 2019 on tty7
[   10.118980] audit: type=1006 audit(1557483758.671:3): pid=3703 uid=0 old-auid=4294967295 auid=0 tty=(none) old-ses=4294967295 ses=2 res=1
root@imx8mmevk:~# date
Fri May 10 10:22:39 UTC 2019

Outcomes