添加软复位

2 years ago · bfd7163d2f
1 changed files with 3 additions and 1 deletions
--- a/Src/lwip.c
+++ b/Src/lwip.c
@ -134,7 +134,9 @@ void MX_LWIP_Init(void)
 /* USER CODE BEGIN 3 */
  if (!netif_is_up(&gnetif)){
    netif_set_up(&gnetif);
-    dhcp_start(&gnetif);
+    if (dhcp_start(&gnetif) == ERR_ARG){
+      NVIC_SystemReset(); /* 软复位 */
+    }
  }

 /* USER CODE END 3 */