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RTC read write fails when battery inserted

Question asked by Chris Joe Sebastin on Aug 21, 2017
Latest reply on May 20, 2018 by zhongwei he


   We are using PCF8523 as RTC for our solution. It works fine if the battery is not inserted. When battery is inserted, the set or read is getting failed.


We are using default values for all registers other than control register 3 . 

Control register 3 value is 0xA0.


We tried with combinations 0xE0 and 0x80 values for Control register 3 to check the configuration issues, but was not working as expected


It would be nice if some one could give a help immediately.