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travisgoodspeed / goodwatch

Replacement board for Casio Calculator Watches using the CC430F6147
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Clock Drift #14

Closed travisgoodspeed closed 7 years ago

travisgoodspeed commented 7 years ago

The RTC on my prototype is drifting by a couple minutes each day. We need to figure out how to trim it, and the proper way to calibrate that trim in a reasonable time.

travisgoodspeed commented 7 years ago

Update: I had mistakenly sourced the RTC from DCO instead of XT1, as fixed in 5010755. Reopen the issue if it seems that trimming is in fact necessary.