Greetings,
I am having trouble with the RTC as it is not incrementing while the board is OFF. I switched the battery cell twice and still have the same problem : When the board is off the RTC no longer increments its counter but when the board is ON it works fine
Might be an idea to say which RTC of the many different type, you are using ?
And maybe which Arduino too ?
I am using the Portenta H7 Breakout Board and the RTC that comes with it
When you re-apply power, is the time from the RTC continued from when power was removed, or is it resetting to some specific time?
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Have a look at this thread https://forum.arduino.cc/t/portenta-h7-rtc/969230 sounds like the problem you are having.
When I reapply power, I get the latest value from the RTC right before I turned the board off
I have seen that thread, they are saying that "rtc hardware on portenta h7 is broken, and cannot be fixed by software" but I am sure I had it working perfectly at a certain point, then it just stopped working as it should
If it really worked in the past, then it would not be a hardware problem.
For me, the issue of Portenta has been settled for now, since I urgently needed the onboard clock function.
I also find it quite arrogant that the developers don't give an answer.
They obviously had a hardware bug built in, that prevents you from using the features advertised.
So you had this same problem at some point ?
Yes, I put the development on the portenta back because there is obviously an incorrect description about how the watch works. Since I like to rely on the devices I work with, I'm just waiting to see if the developers have anything to say about it. But as far as I can see, nothing is happening. I had briefly tried to get involved with direct programming of the clocks registers. But then the opinion came up,
that the clock was not properly connected hardware-wise
Maybe there would be a possibility to bridge or split the pins or do something else on the hardware side, but I don't know enough about it. That would have to be done by the people who developed the device.
Maybe they will release a hardware update.
But that doesn't help my device either.
@David_2018 had found my thread and mentioned it here.