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watchdog timer

abhishek grover82
Intellectual 340 points


Hi,

Watchdog timer is used to reset the processor if it does not receives periodic pulses from the processor. So why do we disable it at the start of our program? We may enable it and program our processor to generate required periodic pulses.

Best Regards,

Abhishek.

  • 0
    Genius 3255 points
    A tiny correction to what you said:
    Watchdog timer resets the MCU once "it overflows". Its pulses are independent of the processor (and must be to do what it is supposed to do).

    As you can now see, If you do not want the MCU to reset, you will have to do one of the following:
    * Disable the WDT. or,
    * Clear the WDT periodically before it overflows.

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