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Read RTC 3231 module at bootime
#1
Hello !
Apologize me for my poor english...

I plug an 3231 RTC module
i modify /boot/config.txt by add i2c-rtc,ds3231 to dtoverlay
i set date --set "......."
i write date to RTC module, i read date, i set date to system.
ok
I add hwclock -s above exit 0 in etc/rc.local
shutdown -h now
....wait....
start, and date are not good.
What i forget ?
Thanks by advance
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