How to solve rtc PCF8563 time delay?

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How to solve rtc PCF8563 time delay?

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dhanash
Contributor I

Dear All,

 i an using rtc PCF8563 and Date & Time is running. But every day 2 or 3 secs delayed compared with PC time. It is continuously POWER ON condition for one week. So totally 18 seconds delayed for a week. How to solve this Problem? 

 

thank you

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TomasVaverka
NXP TechSupport
NXP TechSupport

Hi,

Please take a closer look at Chapter 10 of the UM10301 which provides tips to tune the crystal frequency in order to achieve higher accuracy.

Best regards,

Tomas

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