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LP87702-Q1: LP87702 Watchdog example

Part Number: LP87702-Q1
Other Parts Discussed in Thread: LP87702


May i have anyone share one example to make LP87702 watchdog workable, thanks.


  • Hi Andy,

    Watchdog in LP87702 can be enabled or disabled by CLKIN pin if it is configured as WD_DIS pin.  CLKIN pin can be configured to WD_DIS by writing WD_DIS_CTRL=1 via I2C. Now watchdog can be enabled by setting WD_DIS pin to 0 and disabled by setting it to 1 through I2C. 

    How is the CLKIN pin used in your system? Is it used as external sync clock or is it used as WD_DIS pin?