Arduino Due watchdog

is there possibility use watchdog arduino due board? according release notes 1.6.5 watchdog should implemented. however, not work.

https://www.arduino.cc/en/main/releasenotes

i described solution problem here http://forum.arduino.cc/index.php?topic=350058

Arduino Forum > Products > Arduino Due (Moderator: fabioc84) > Arduino Due watchdog

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