Wake up

[Wen666]

Hello, I have a question about the FS6500 wake-up configuration. After the wake up event is detected, according to the FS6500 data document, the master state machine does not need to be re-initialized while the fail-safe state machine needs to be re-initialized. I would like to ask if there is a register configuration process for post-wake initialization, similar to Figure 2.

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[guoweisun]

Hi 

You can re-write the INIT related registers to enter into normal mode,but INIT_INT register MUST be operated.

[Wen666]

I wonder what the nest software needs to do in order to wake up from sleep mode to normal mode, is it the same logic as reset power on or is it just a matter of configuring the relevant registers of the fail-safe state machine.

[guoweisun]

You can see below,from wake up the MAIN STATE MACHINE ,will enter into Buck or
Buck Boost configuration detection phase and Keep going down according the arrow flow.

guoweisun_1-1729048274297.png