Teensy 3.2 internal RTC

[mizapata]

Paul, I am using Teensy 3.2 and your new Pro Shield and using Teensy internal clock with added crystal and coin battery attached to Vbat and ground. I am using Teensy TimeTeensy3 and Lib #include <Time.h>
#include <TimeLib.h>. Clock works find with Teensy powered on but when power is turn off RTC is not keeping time it recalls last time set? If I test Teensy not connected to Pro Shield and power off and power back up it picks up the correct time. My question is with Pro Shield connect did a pin change occur?

Thanks,
Manny

 

[mizapata]

Paul, I forgot to include both items from Sparkfun.

Teensy 3.2 DEV-13736 RoHS
Teensy Prop Shield DEV-13995 RoHS Open Source Hardware

 

[manitou]

Maybe this earlier discussion will be helpful
https://forum.pjrc.com/threads/16829-Teensy-3-RTC-incorrect-time-question
I couldn't see anything from the prop shield layout that would interfere with VBAT ?

 

[mizapata]

I found the issue by reading your link. I was not reading get time properly.

Thanks,
Manny