contiki-os/contiki — pull request #661 by hexluthor (2014-04-25 20:36:08+00:00)
Title: CC2538: Add WATCHDOG_CONF_ENABLE to optionally disable the watchdog timer

Once the CC2538 watchdog timer is started, it cannot be disabled. This simple mod allows the project to override the default behavior of the platform and control the watchdog directly by adding `#define WATCHDOG_CONF_ENABLE 0` to project-conf.h.