In my design the VDD_RTC (A50 pin) is supplied by the main battery (3.3Vdc) of the base board. When the the LAN is connected and the system is powered-off and powered-on, the date and time is updated. When the LAN is not connected the date and time is not updated when powering-off and powering-on the board.
Does I need to enable the RTC circuit of the TX2 module mannualy or it should work by default, just supplying the VDD_RTC?
Thanks in advance,