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For TM4C of Hibernate

kozo kitada
Expert 1510 points

1)

If you want to back up the built-in SRAM in the battery, in a state of connecting the battery to VBAT, if you drop the VDD, do you become a Hibernate mode?

2)

If you put the RST signal from the outside when the power is turned on, WAKE whether the signal will return from Hibernate without control?

Best Regards,

Kozo

  • 0
    TI__Guru**** 244400 points
    Hello Kozo

    First of all which TM4C device are you using? That will help answer in detail

    In general if your drop VDD with VBAT connected it does not enter Hibernate. Hibernate state has to be done by the CPU. However you can still preserve the Hibernate block if the Hibernate is configured for a wakeup source or if the RTC has been enabled. It is called Arbitrary Power Loss condition where hibernate state will not be entered but the hibernate module will not be reset

    Regards
    Amit