Sam Cristtina
Junior Member level 1
I'm using with RTC. I have some problem with it.
my clock is slowing with 1.768sec/Day. I'm using with 32768Hz crystal with -20 to +20 PPM.
I Have solved it using calibration register. but it is difficult to calibrate all RTC (I have 5 RTC)using Calibration register.
So I like to ask u that what is better that I have to use tight tolerance crystal or calibration the RTC manually?
Thanks..
my clock is slowing with 1.768sec/Day. I'm using with 32768Hz crystal with -20 to +20 PPM.
I Have solved it using calibration register. but it is difficult to calibrate all RTC (I have 5 RTC)using Calibration register.
So I like to ask u that what is better that I have to use tight tolerance crystal or calibration the RTC manually?
Thanks..