修改喂狗芯片为100ms

middleware/lwip/contrib/ports/baremetal/netdev.c

@@ -40,8 +40,10 @@ static err_t netdev_init_fn(struct netif *netif)
   }
 
   if (dev->d_init) {
+        External_wdt_refresh();   
+        
     dev->d_init(dev);
-  
+        External_wdt_refresh();     
   }
 
   return ERR_OK;
@@ -58,6 +60,7 @@ err_t netdev_register(struct net_driver_s *dev, enum net_lltype_e lltype)
             ip_2_ip4(&dev->d_netmask),
             ip_2_ip4(&dev->d_gateway),
             dev, netdev_init_fn, netif_input);
+
   netif_set_default(&dev->d_netif);
   netif_set_up(&dev->d_netif);