A20 Allwinner seems to have a RTC but i think this one can't work when the board is shutdown (during several minutes/hours/days ?). This package register the last date and set it early in the boot process.
A20 Allwinner seems to have a RTC but i think this one can't work when the board is shutdown (during several minutes/hours/days ?). This package register the last date and set it early in the boot process.