The RTC has an 8-bit retention scratch register but the firmware will make use of it.
Given that the whole board has to go through the boot cycle on an RTC wake (including SDRAM init and OS load) before you get to do anything, why not use the filesystem for persistence?
Given that the whole board has to go through the boot cycle on an RTC wake (including SDRAM init and OS load) before you get to do anything, why not use the filesystem for persistence?
Statistics: Posted by jdb — Thu Feb 20, 2025 1:36 pm