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PCF8523 not update system clock RPI3 B+ Stretch
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PCF8523 not update system clock RPI3 B+ Stretch

by alex998r on Mon Jan 21, 2019 4:50 pm

Hello, I correctly setup the PCF8523 as per instructions in https://learn.adafruit.com/adding-a-rea ... t-rtc-time.
All works fine except that the RTC is not automatically updating the system clock.
Sending the hwclock -r -D command gives me the correct date. The clock is correctly written into the Linux system when I send the hwclock -s command but, if I shutdown the system and, after a whyle, I will then bring it up, the system time was stuck a time of power down but the RTC correctly shows the actual time.
The instructions you gave are for Jessie and I think something changed in Stretch distribution.
Please what can I check/change to have the system clock automatically updated at boot?
Regards
Alessandro

alex998r
 
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Joined: Mon Jan 21, 2019 4:40 pm

Please be positive and constructive with your questions and comments.