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Old 22-04-2014, 09:05 PM
E_ri_k (Erik)
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Join Date: Jun 2011
Location: Lakes Entrance
Posts: 846
Quote from the Gemini 2 page

"5. Back After Power Fail.
Gemini has a voltage supervisor on board that is primarily used to save all important data (positional, date, time) at power-off. This is necessary to allow for permanent PEC and Warm (Re)Start.
This supervisor triggers an interrupt if the voltage drops down below about 10V. All GoTo operations are stopped, motors are halted, Housekeeping is done, all files are closed.
G2 then enters a loop and waits for browning out (power off) or for regaining power. If power comes back the message "Back after power fail" is displayed and normal operation can proceed."
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