We are using a Jetson Nano on a carrier board with a RTC battery. In production, we have had 1-2 boards that, despite having the battery installed, don’t seem to advance the time when powered off.
Is there a command or some other way to verify the RTC circuit is functioning properly?
We have noticed an RTC voltage in dmesg (vdd-rtc: 850 <–> 1100 mV at 1000 mV ) which is always 1000mV, even if the battery is physically missing.
Powering off the system for 5 minutes and checking the time does work but this a slow/highly disruptive step for verifying something this specific.
Thanks in advance!