AnsweredAssumed Answered

imx6 uart wakeup

Question asked by zhang jie on Feb 12, 2019
Latest reply on Feb 12, 2019 by fangfang

i use the imx6sllevk.


i tap the follow contents by shell.

cd /sys/class/tty/ttymxc0/power
echo enabled > wakeup
cd /sys/class/tty/ttymxc1/power
echo enabled > wakeup
cd /sys/power
echo mem > state

the system can go into the sleep mode.


but the whole process going into the sleep mode takes 80ms .

during this time if i sent data to bsp by  ttymxc1, it can not stop going to the sleep mode.


i consider wakeup_count can resolve the problem.  

how to set it or any other way can stop it?


pls give me advice.