kkdelabaca
Full Member level 2
Hello,
I'm interested in build one chronometer to count from 0,001s to 9,999s
The input of the system is one interrupt in one PIC microcontroller.
My questions:
- Why normally in the RTC the people use one crystal of 32,768KHz ?
- If I use one external crystal of 32,768KHz in one timer, I have one resolution of 0.000305 seconds that is very suitable for my application.
- I'm going to get a better result if I use the Main Oscillator 20MHz uC?
Thanks!
I'm interested in build one chronometer to count from 0,001s to 9,999s
The input of the system is one interrupt in one PIC microcontroller.
My questions:
- Why normally in the RTC the people use one crystal of 32,768KHz ?
- If I use one external crystal of 32,768KHz in one timer, I have one resolution of 0.000305 seconds that is very suitable for my application.
- I'm going to get a better result if I use the Main Oscillator 20MHz uC?
Thanks!