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Time is not update when reboot the board

Question asked by vinothkumar s on Oct 26, 2018
Latest reply on Oct 29, 2018 by vinothkumar s

Hi All,

 

I am using PCF8523 RTC Chip and also I mounted Coin Cell also. I configured Coin Cell as Standard mode and low Detection Mode (000). But, after setting the time when rebooting the time is not update.

 

 

Reference,

https://www.nxp.com/docs/en/data-sheet/PCF8523.pdf 

 

 

If anyone know how to make this coin cell work when power off the board, As per datasheet I initialize control register 3 = 000. But, I not getting the time when power on the board

 

And we are using 3V battery and I want to know how much Voltage we got when switch OFF the board and switch ON the board?

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