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335x ROM在成功启动过后会关闭WatchDog吗?



查看335x ROM说明说是ROM启动过程中打开watchdog,时间为3分钟,但是并没有看到什么时候关闭看门狗。

在Uboot代码中,开到有关闭watchdog的代码。

在Uboot中关闭开门狗的前面点灯,并进入死循环,发现watchdog并没有起作用。

假设如果ROM启动失败,watchdog reset。ROM里面的代码会重新执行吗?