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Enabling / Disabling Watchdog function in TPS3823-33

SelvaKumaran R
Expert 3015 points

Hi,
Would like to know how we can enable/disable watchdog function in TPS3823-33 device. Customer would like to enable watchdog function through MCU GPIO and then when not required, he needs to disable the watchdog function. By making the PIN WDI to open/close will disable/enable the watchdog function.

-Selva

  • 0
    TI__Mastermind 36110 points

    Per the TPS3823-33 datasheet, "Leaving WDI unconnected disables the watchdog".  You can use your uP with open, or tri-stated GPIO to disable the watchdog.  To enable watchdog ( WDI ), simply configure the GPIO to drive a logic high and low to the WDI pin.