diff --git a/bsp/src/at_device_ml307.c b/bsp/src/at_device_ml307.c
index 370cc6e..389be20 100644
--- a/bsp/src/at_device_ml307.c
+++ b/bsp/src/at_device_ml307.c
@@ -348,6 +348,7 @@ int at_send_data(struct at_device *device, const char *data, rt_size_t send_len)
     size_t len = 0, error_code;
 
 #define ML307_SEND_RESP_TIME (5000)
+
     at_response_t resp = at_create_resp(AT_CLIENT_RECV_BUFF_LEN, 0, ML307_SEND_RESP_TIME);
 
     if (resp == RT_NULL)
@@ -368,6 +369,13 @@ int at_send_data(struct at_device *device, const char *data, rt_size_t send_len)
                 return RT_EOK;
             }
         }
+        else if (at_resp_parse_line_args_by_kw(resp, "+CME ERROR:", "+CME ERROR: %d", &error_code) > 0)
+        {
+            ml307_conncet_tcp_flag = 0;
+            LOG_E("send data fail error_code: %d", error_code);
+            at_delete_resp(resp);
+            return -RT_ERROR;
+        }
     }
     else if (at_resp_parse_line_args_by_kw(resp, "+CME ERROR:", "+CME ERROR: %d", &error_code) > 0)
     {
diff --git a/bsp/src/bsp_ml307.c b/bsp/src/bsp_ml307.c
index c24984d..aff6023 100644
--- a/bsp/src/bsp_ml307.c
+++ b/bsp/src/bsp_ml307.c
@@ -951,7 +951,6 @@ int Ml307_Process_Events (Ml307Event ml307_recv_event, struct at_device *device,
     if (event)  // 处理该事件
     {
         // 打印事件的名称
-
         ml307_current_evnet = event->event_flag;
         for (size_t i = 0; i < max_retry_count; i++)
         {
@@ -992,6 +991,7 @@ int Ml307_Process_Events (Ml307Event ml307_recv_event, struct at_device *device,
             else
             {
                 ret = RT_ERROR;
+                break;
             }
             if (event->priority < Get_Event_Priority (ml307_latest_evnet))  // 查看当前事件和新传入的事件的优先级哪个高，如果有高的直接退出处理高优先级的
             {
@@ -1025,7 +1025,7 @@ int Ml307_Process_Events (Ml307Event ml307_recv_event, struct at_device *device,
             if (!ml307_disconnect_retry_flag)
             {
                 LOG_D("与服务器断开,重连网络中");
-              rt_sem_release (ml307_disconnect_sem);
+                rt_sem_release (ml307_disconnect_sem);
             }
             else
             {
@@ -2015,7 +2015,7 @@ static void Ml307_Life_Thread_Entry (void *parameter)
                                     }
                                 }
                             }
-                            rt_thread_mdelay (3000);
+                            rt_thread_mdelay (1000);
                         }
                         if (i == 60)
                         {
diff --git a/rt-thread/rtconfig.h b/rt-thread/rtconfig.h
index bb8c993..0fd4645 100644
--- a/rt-thread/rtconfig.h
+++ b/rt-thread/rtconfig.h
@@ -88,7 +88,7 @@
 
 #define FINSH_THREAD_NAME       "tshell"
 #define FINSH_THREAD_PRIORITY   11
-#define FINSH_THREAD_STACK_SIZE 4096
+#define FINSH_THREAD_STACK_SIZE 3072
 #define FINSH_USING_HISTORY
 #define FINSH_HISTORY_LINES 5
 #define FINSH_USING_SYMTAB
@@ -156,7 +156,7 @@
 
 #define RT_USING_ULOG
 #define ULOG_OUTPUT_LVL_D
-#define ULOG_OUTPUT_LVL 7 
+#define ULOG_OUTPUT_LVL 7
 #define ULOG_USING_ISR_LOG
 #define ULOG_ASSERT_ENABLE
 #define ULOG_LINE_BUF_SIZE 1024