Atop SE59XX-SDK, User Manual, Page: 55 / 75

SE59XX-SDK
Software development Kit
User Manual
V1.2
5.9.2 Read RTC time:
Execute the following command on the kernel shell:
./ge t_r tc
I t will p rocess command “hwclock –r –f /dev/r tc1”.
The console will dis play the cur ren t RT C t ime such as “Wed Feb 1 14:11:50 2017”
5.9.3 RTC2system
Execute the following command on the kernel shell:
./ r tc2system
I t will p rocess command “hwclock –s –f /dev/r tc1”.
r tc2sys tem: se t sys tem time f rom hardware clock.
5.9.4 system2RTC
Execute the following command on the kernel shell:
./sys tem2rtc
I t will p rocess command “hwclock –w –f /dev/r tc1”.
sys tem2rtc: se t hardware clock f rom system time.
In order to make sure the clock was set correctly, turn off the power and res tar t the sys tem. Af te r s tar tu p is
completed, check the RT C time.
5.10 Using NOR Flash – JFFS2
There is a NOR flash on each device . 16MB of it is rese rved for user a p plications mount ed on /j f fs2 file sys tem.
This will be mounted automatically on system star t -u p . The user can put all a p plication p rograms and the related
data into /j f fs2 .
All data in the /j f fs2 will be ke p t when sys tem is shut down.
5.11 MQTT
You can use ht t p ://tes t .mosquit to.org/ MQTT broker ( serve r ) for tes t ing .