using external watchdog with MK64

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using external watchdog with MK64

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roymessinger
Contributor V

Although, not concerned directly with the MK64, still, I have this question which I'm sure will help other users...

I'm using external watchdog timer in my board to reset the MK64 in case no strobe is passed to it (I know there's also internal watchdog in the MK64).

What I don't understand is what should happen while burning the internal flash of the MK64. Since no strobe will pass to the watchdog timer, the watchdog will reset the board all the time (in loop).

Any idea how to avoid such scenario?

(I've placed pull up resistor on the PB_RST (pushbutton reset pin) but that will not help in case of burning the flash)

Thanks.

Roy

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Hui_Ma
NXP TechSupport
NXP TechSupport

Hi

I do a search and there with a ppt about external watchdog timers.

There with requirement to determine the proper watchdog timeout duration, the programmer must determine the amount of time it takes to execute the code, using worst case scenarios.


Wish it helps.

Have a great day,
Ma Hui
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