Read RTC 3231 module at bootime - Printable Version +- OpenMarine (https://forum.openmarine.net) +-- Forum: OpenPlotter (https://forum.openmarine.net/forumdisplay.php?fid=1) +--- Forum: How do I...? (https://forum.openmarine.net/forumdisplay.php?fid=3) +--- Thread: Read RTC 3231 module at bootime (/showthread.php?tid=839) |
Read RTC 3231 module at bootime - bmayer - 2017-11-01 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 |