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你好，
C6713B没有内置看门狗，所以我想用CPLD实现一个硬件看门狗，但是C6713B也没有专门的喂狗线，请问可以用GPIO实现喂狗么？或者有更好的解决方法？
watchdog一般都是用GPIO来喂的，至少我见到的都是。
