Functions to handle power blackout
It is recommended that T-Engine has the following to handle power blackout.
(1) Power failure detection by backup power supply (UPS, battery, etc.)
Select one of following three solutions to realize the power failure detection by backup power supply.
- Installation of a signal input pin for power failure notification on the CPU board
- Introduction of battery voltage drop detection function (in case that battery is equipped.)
- Installation of a signal input pin for power failure notification on the Expansion board to notify the CPU board of power failure
(2) Power failure detection function using nonvolatile memory, RTC internal register, or other methods
However, the data backup function (such as mounting nonvolatile memory) shall be optional.
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