diff --git a/applications/user_sys.h b/applications/user_sys.h
index 7525a10..40bf216 100644
--- a/applications/user_sys.h
+++ b/applications/user_sys.h
@@ -19,7 +19,7 @@
 
 
 #define SYS_HW_VERSION           (0X13U)
-#define SYS_SW_VERSION           (0X16U)
+#define SYS_SW_VERSION           (0X17U)
 #define SYS_IOT_UPLOAD_CYCLE_MIN (0X003CU) // 高位在后，低位在前
 #define SYS_IOT_RETRY            (0X03U)
 #define SYS_TEMP_ALARM_THRESHOLD (0X32U)
@@ -37,7 +37,6 @@
 // #define SYS_IOT_URL              ("8.130.105.38")
 // #define SYS_IOT_PORT             ("7133")
 
-
 #define K                        (8 * 1000)
 
 // 定义宏来打印编译时间和日期
diff --git a/bsp/src/at_device_ml307.c b/bsp/src/at_device_ml307.c
index 93f1116..d7aa1a3 100644
--- a/bsp/src/at_device_ml307.c
+++ b/bsp/src/at_device_ml307.c
@@ -140,7 +140,9 @@ static void urc_tcp_recv (struct at_client *client, const char *data, rt_size_t
     rt_uint16_t rec_crc16 = 0;
     char crc16_buf[6] = {0};
     char data_buf[AT_CLIENT_RECV_BUFF_LEN] = {0};
-
+#ifdef TEST_ENABLE
+                    RTC_ShowTime();  // 每次接收打印下时间，容易定位问题
+#endif
     rt_uint8_t recv_byte_buf[AT_CLIENT_RECV_BUFF_LEN] = {0};
     rt_memset (data_buf, 0, sizeof (data_buf));
     /*+MIPURC: "rtcp",<connect_id>,<recv_length>,<data>*/