I tried, but pull up resistor draw to much curent. So i use RA4 to switch on/off pull up. If pull up aren't always on, i can't use IOC. That is reason why i need to wake up...
Now i got an ideaMaybe is better to use CLKOUT from RTC, and IOC, but again i need 1 more resistor. CLKOUT is open drain... But on other side i don't need tmrosc on pic...
What do you think about that?
EDIT:
Now I saw in RTC datasheet that CLKOUT can be set to 32.768 kHz, 1024 Hz, 32 Hz and 1 Hz. I'm thinking to set CLKOUT to 32 Hz. And to to use INT0 instead of IOC. I think that it should give me precise 32 wake up's per second.


Maybe is better to use CLKOUT from RTC, and IOC, but again i need 1 more resistor. CLKOUT is open drain... But on other side i don't need tmrosc on pic...


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