Hi!
I program RTC module on MSP430F5342 with code from MSP430F543xA Code Examples. ACLK (32768 quartz) run RTC.
After one day running CPU in LPM3 and update RTC time to LCD every minute, I get a couple of minutes error. What could be wrong for so much big error in one day?
Internal cup for XTAL is default (12.5pF). I measure quartz and it is in predicted range (32768.xx).
Any suggestions or ideas?