imx8mn suspend question

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

imx8mn suspend question

Jump to solution
957 Views
1269813285
Contributor I

1.question 1:

and when the cpu enter suspend mode ,it will waked up by RTC regularly.the log is attached.

I don't know why why the RTC wake up the cpu .is it normal or abnormal?

2.question2:

by click power key ,we can enter suspend mode,and I want to know how we can enter into idle mode.

could you please tell me how to enter idle mode?

Best regards

Wei

Labels (1)
0 Kudos
Reply
1 Solution
920 Views
igorpadykov
NXP Employee
NXP Employee

Hi Wei

one can look at RTC wake up in unit test and check if these codes are used in

custom software

rtcwakeup.c\mxc_rtc\test - imx-test - i.MX Driver Test Application Software 

 idle mode usage is described in sect.2.5 Power Management i.MX Linux Reference Manual

"IDLE Mode: This mode is defined as a mode which CPU can automatically enter
when there is no thread running and all high-speed devices are not active."

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

View solution in original post

0 Kudos
Reply
1 Reply
921 Views
igorpadykov
NXP Employee
NXP Employee

Hi Wei

one can look at RTC wake up in unit test and check if these codes are used in

custom software

rtcwakeup.c\mxc_rtc\test - imx-test - i.MX Driver Test Application Software 

 idle mode usage is described in sect.2.5 Power Management i.MX Linux Reference Manual

"IDLE Mode: This mode is defined as a mode which CPU can automatically enter
when there is no thread running and all high-speed devices are not active."

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

0 Kudos
Reply