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I am using MSP430f6766 and trying to get the RTC (RTC_CE) value on the LCD. I could able to display the RTC values (time ,date, month and year)
properly. However when I am turning off the system (Power off state) the RTC is not updating. It resumes from the last time it turned off.
My battery is connected to "AUXVCC3" pin of the controller and used the code snippet below to configure auxiliary vcc control register AUX3CHCTL.
AUX3CHCTL = AUXCHKEY | AUXCHC_1 | AUXCHV_1 | AUXCHEN; // Enable Charger for AUX3 to enable RTC.
Can any one help me to configure the battery back up for the RTC. ( strange observation is out of 8 prototype boards some boards retains RTC values sometimes but not consistent )
Can any one help me to solve the issue.
Thanks in advance,
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In reply to Jace H:
Thanks for reply,
I am using similar settings but only for Rtc I am giving battery backup(Auxvcc3). I am afraid the code is not working as intended. I have crosschecked in example codes didn't get anything mutch as they are like my very program. I have gone through user manual but couldn't find anything really clarifying my doubts. Is the PMM related to this ? If so how can I set proper PMM here . data sheet us little confusing here
In reply to Anand:
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