I recently bought the ups pico, and I'm confused by the instructions to set up the RTC (I quote: "Integrated Software Simulated Real Time Clock (RTC) with Battery Back-Up").
There is no mechanical clock on the board it seems, so how is this ups clock different from the fake-hwclock on the pi, and how does it need to be setup?
I have tried following your documents and other instructions I could find on the web, but still not getting it (I don't see any difference with the Pi default clock).
Could you kindly indicate what is the role of this RTC and how it needs to be set up?
PS: I would also like to mention that until I found that miracle instruction at https://github.com/mattwire/upspico, my UPS (with 3000 mAh battery) was invariably shutting down after 30s:
someone else might find this useful.Set on battery runtime to maximum
Code: Select all
i2cset -y 1 0x6b 0x09 0xff