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LPC1768 RTC Backup register issue

Question asked by Ajit Kale on Oct 31, 2018
Latest reply on Nov 6, 2018 by jeremyzhou

Hi,
I am facing the same issue with LPC1768 ------> the RTC work fine only with mains power ON,even if coin battery of 3.3v connected to RTC pin. 
While initiating the program the backup registers need to be read to load the RTC value. But in my case after resetting the power the backup registers not storing the RTC value.
 suggest whats the solution?

 

Thanks
Ajit

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