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使用FR800x的notify给手机高频率上传数据，当手机距离远信号较弱的时候会导致芯片卡死，然后手机再也无法搜索到FR800x的蓝牙设备，只能对FR800x断电重启，这种情况能否使用看门狗来解决，看门狗如何使用