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TPS3851: GPIO Pin configuration for Watchdog pin toggle.

Part Number: TPS3851

Hi,

We are using TPS3851 External watchdog with TDA2Ex.

As per the TDA2Ex_TRM, the pin connected to WDI is a multiplexed pin.

So, we need to make the pin as gpio first. And then we need to configure gpio4_17 as output.

We want to toggle the WDI pin through gpio4_17.

Please let us know the procedure to configure the multiplexed pin as gpio, make it as output and toggle the WDI pin.

Regards,

Ashish

  • Ashish,

    Unfortuantely I can only support your voltage supervisor questions and needs. You need to refer to the TDA2Ex datasheet and user guide to figure out the proper configuration of the GPIO pin for that device. If you believe you have the correct configuration and the Voltage Supervisor is not responding how it should, then I can work with you to figure out why. You need a falling pulse on the WDI pin before I can help troubleshoot. Best of luck!

    -Michael