diff --git a/APP_Framework/Applications/connection_app/socket_demo/lwip_tcp_socket_demo.c b/APP_Framework/Applications/connection_app/socket_demo/lwip_tcp_socket_demo.c
index 3eccb8dc0..95372addc 100755
--- a/APP_Framework/Applications/connection_app/socket_demo/lwip_tcp_socket_demo.c
+++ b/APP_Framework/Applications/connection_app/socket_demo/lwip_tcp_socket_demo.c
@@ -126,7 +126,6 @@ void tcp_socket_recv_run(int argc, char *argv[])
         sscanf(argv[1], "%d.%d.%d.%d", &tcp_socket_ip[0], &tcp_socket_ip[1], &tcp_socket_ip[2], &tcp_socket_ip[3]);
     }
 
-    ETH_BSP_Config();
     lwip_config_tcp(lwip_ipaddr, lwip_netmask, lwip_gwaddr);
     sys_thread_new("tcp_recv_demo", tcp_recv_demo, NULL, LWIP_TASK_STACK_SIZE, LWIP_DEMO_TASK_PRIO);
 }
@@ -190,7 +189,6 @@ void tcp_socket_send_run(int argc, char *argv[])
         sscanf(argv[1], "%d.%d.%d.%d", &tcp_socket_ip[0], &tcp_socket_ip[1], &tcp_socket_ip[2], &tcp_socket_ip[3]);
     }
 
-    ETH_BSP_Config();
     lwip_config_tcp(lwip_ipaddr, lwip_netmask, tcp_socket_ip);
     sys_thread_new("tcp socket", tcp_send_demo, NULL, LWIP_TASK_STACK_SIZE, LWIP_DEMO_TASK_PRIO);
 }
diff --git a/APP_Framework/Applications/connection_app/socket_demo/lwip_udp_socket_demo.c b/APP_Framework/Applications/connection_app/socket_demo/lwip_udp_socket_demo.c
index 36d49cf4f..3b37aa5a6 100755
--- a/APP_Framework/Applications/connection_app/socket_demo/lwip_udp_socket_demo.c
+++ b/APP_Framework/Applications/connection_app/socket_demo/lwip_udp_socket_demo.c
@@ -121,7 +121,6 @@ void udp_socket_recv_run(int argc, char *argv[])
         sscanf(argv[1], "%d.%d.%d.%d", &udp_socket_ip[0], &udp_socket_ip[1], &udp_socket_ip[2], &udp_socket_ip[3]);
     }
 
-    ETH_BSP_Config();
     lwip_config_tcp(lwip_ipaddr, lwip_netmask, lwip_gwaddr);
     sys_thread_new("udp_recv_demo", udp_recv_demo, NULL, LWIP_TASK_STACK_SIZE, LWIP_DEMO_TASK_PRIO);
 }
@@ -190,7 +189,6 @@ void udp_socket_send_run(int argc, char *argv[])
         sscanf(argv[1], "%d.%d.%d.%d", &udp_socket_ip[0], &udp_socket_ip[1], &udp_socket_ip[2], &udp_socket_ip[3]);
     }
 
-    ETH_BSP_Config();
     lwip_config_tcp(lwip_ipaddr, lwip_netmask, lwip_gwaddr);
     sys_thread_new("udp_send_demo", udp_send_demo, NULL, LWIP_TASK_STACK_SIZE, LWIP_DEMO_TASK_PRIO);
 }
diff --git a/APP_Framework/Applications/control_app/Makefile b/APP_Framework/Applications/control_app/Makefile
index e321906d1..568e8b92f 100755
--- a/APP_Framework/Applications/control_app/Makefile
+++ b/APP_Framework/Applications/control_app/Makefile
@@ -3,7 +3,7 @@ SRC_DIR :=
 ifeq ($(CONFIG_RESOURCES_LWIP),y)
 
 ifeq ($(CONFIG_USING_CONTROL_PLC_OPCUA), y)
-	SRC_DIR += opcua_demo
+	SRC_DIR += opcua_demo plc_demo
 endif
 
 endif
diff --git a/APP_Framework/Applications/control_app/opcua_demo/opcua_demo.c b/APP_Framework/Applications/control_app/opcua_demo/opcua_demo.c
index f9c2741b5..9890b96cc 100755
--- a/APP_Framework/Applications/control_app/opcua_demo/opcua_demo.c
+++ b/APP_Framework/Applications/control_app/opcua_demo/opcua_demo.c
@@ -30,9 +30,9 @@
  ******************************************************************************/
 
 #define TCP_LOCAL_PORT 4840
-#define UA_URL_SIZE 100
-#define UA_STACK_SIZE 4096
-#define UA_TASK_PRIO 25
+#define UA_URL_SIZE    100
+#define UA_STACK_SIZE  4096
+#define UA_TASK_PRIO   15
 
 /*******************************************************************************
  * Prototypes
@@ -67,33 +67,28 @@ static void test_ua_connect(void *arg)
     UA_ClientConfig *config = UA_Client_getConfig(client);
     UA_ClientConfig_setDefault(config);
 
-    snprintf(ua_uri, UA_URL_SIZE, "opc.tcp://%d.%d.%d.%d:4840",
+    snprintf(ua_uri, sizeof(ua_uri), "opc.tcp://%d.%d.%d.%d:4840",
         test_ua_ip[0], test_ua_ip[1], test_ua_ip[2], test_ua_ip[3]);
 
-    retval = UA_Client_connect(client, ua_uri);
+    ua_pr_info("ua uri: %d %s\n", strlen(ua_uri), ua_uri);
+
+    retval = UA_Client_connect(client,ua_uri);
     if (retval != UA_STATUSCODE_GOOD)
     {
-        ua_print("ua: [%s] ret %x\n", __func__, retval);
+        ua_pr_info("ua: [%s] connected failed %x\n", __func__, retval);
+        UA_Client_delete(client);
+        return;
     }
 
-    ua_print("ua: [%s] start Ua Test!\n", __func__);
+    ua_pr_info("ua: [%s] connected ok!\n", __func__);
     UA_Client_disconnect(client);
     UA_Client_delete(client);
 }
 
-void test_ua_connect_thr(void *arg)
+void test_sh_ua_connect(void *arg)
 {
-    ETH_BSP_Config();
     lwip_config_tcp(lwip_ipaddr, lwip_netmask, test_ua_ip);
-    test_ua_connect(NULL);
-}
-
-void test_sh_ua_connect(void)
-{
-    int result = 0;
-    pthread_t th_id;
-    pthread_attr_t attr;
-    sys_thread_new("ua test", test_ua_connect_thr, NULL, UA_STACK_SIZE, UA_TASK_PRIO);
+    sys_thread_new("ua test", test_ua_connect, NULL, UA_STACK_SIZE, UA_TASK_PRIO);
 }
 
 SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0) | SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN) | SHELL_CMD_PARAM_NUM(0),
@@ -148,7 +143,6 @@ void *test_sh_ua_brower_objects(int argc, char *argv[])
         }
     }
 
-    ETH_BSP_Config();
     lwip_config_tcp(lwip_ipaddr, lwip_netmask, test_ua_ip);
     sys_thread_new("ua object", test_ua_browser_objects, NULL, UA_STACK_SIZE, UA_TASK_PRIO);
     return NULL;
@@ -202,9 +196,8 @@ void *test_sh_ua_get_info(int argc, char *argv[])
         }
     }
 
-    ETH_BSP_Config();
     lwip_config_tcp(lwip_ipaddr, lwip_netmask, test_ua_ip);
-    sys_thread_new("ua object", test_ua_browser_objects, NULL, UA_STACK_SIZE, UA_TASK_PRIO);
+    sys_thread_new("ua info", test_ua_get_info, NULL, UA_STACK_SIZE, UA_TASK_PRIO);
     return NULL;
 }
 
diff --git a/APP_Framework/Applications/control_app/plc_demo/Makefile b/APP_Framework/Applications/control_app/plc_demo/Makefile
new file mode 100755
index 000000000..36aa97af0
--- /dev/null
+++ b/APP_Framework/Applications/control_app/plc_demo/Makefile
@@ -0,0 +1,3 @@
+SRC_FILES := plc_demo.c
+
+include $(KERNEL_ROOT)/compiler.mk
diff --git a/APP_Framework/Applications/control_app/plc_demo/plc_demo.c b/APP_Framework/Applications/control_app/plc_demo/plc_demo.c
new file mode 100755
index 000000000..3f0b241b8
--- /dev/null
+++ b/APP_Framework/Applications/control_app/plc_demo/plc_demo.c
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2021 AIIT XUOS Lab
+ * XiUOS is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *        http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+
+/**
+ * @file ua_demo.c
+ * @brief Demo for OpcUa function
+ * @version 1.0
+ * @author AIIT XUOS Lab
+ * @date 2021.11.11
+ */
+
+#include "open62541.h"
+#include "plc.h"
+#include "ua_api.h"
+#include "sys_arch.h"
+#include "plc_bus.h"
+#include "plc_dev.h"
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+
+#define PLC_BUS_NAME "plc bus"
+#define PLC_DRV_NAME "plc driver"
+#define PLC_BUF_LEN 1000
+
+#define PLC_STACK_SIZE  4096
+#define PLC_TASK_PRIO   15
+
+#define plc_print KPrintf
+
+/*******************************************************************************
+ * Prototypes
+ ******************************************************************************/
+
+/*******************************************************************************
+ * Variables
+ ******************************************************************************/
+
+struct PlcBus plc_demo_bus;
+struct PlcDriver plc_demo_drv;
+struct PlcDevice plc_demo_dev;
+
+char plc_demo_ip[] = {192, 168, 250, 5};
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+
+
+void PlcTestInit(void)
+{
+    lwip_config_tcp(lwip_ipaddr, lwip_netmask, plc_demo_ip);
+
+    PlcBusInit(&plc_demo_bus, PLC_BUS_NAME);
+    PlcDriverInit(&plc_demo_drv, PLC_DRV_NAME);
+
+    // register plc device
+    plc_demo_dev.state = DEV_INIT;
+    PlcDevRegister(&plc_demo_dev, NULL, "plc test device");
+}
+
+void PlcTestRead(void *arg)
+{
+    int ret = 0;
+    struct PlcOps *ops = NULL;
+    char buf[PLC_BUF_LEN];
+
+    plc_demo_dev.priv_data = (ua_dev_t *)malloc(sizeof(ua_dev_t));
+    ua_dev_t *ua_ptr = plc_demo_dev.priv_data;
+    memset(ua_ptr, 0, sizeof(ua_dev_t));
+    strcpy(ua_ptr->ua_remote_ip, OPC_SERVER);
+
+    PlcTestInit();
+    plc_demo_dev.net = PLC_IND_ENET_OPCUA;
+    ops = plc_demo_dev.ops;
+    ret = ops->open(&plc_demo_dev);
+    if(EOK != ret)
+    {
+        plc_print("plc: [%s] open failed %#x\n", __func__, ret);
+        free(plc_demo_dev.priv_data);
+        return;
+    }
+    ret = ops->read(&plc_demo_dev, buf, PLC_BUF_LEN);
+    if(EOK != ret)
+    {
+        plc_print("plc: [%s] read failed\n", __func__);
+        free(plc_demo_dev.priv_data);
+        return;
+    }
+    free(plc_demo_dev.priv_data);
+    ops->close(&plc_demo_dev);
+}
+
+void PlcTestTask(int argc, char *argv[])
+{
+    sys_thread_new("plc read", PlcTestRead, NULL, PLC_STACK_SIZE, PLC_TASK_PRIO);
+}
+
+SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0) | SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN) | SHELL_CMD_PARAM_NUM(3),
+     plc, PlcTestTask, test PLC);
+
diff --git a/APP_Framework/Framework/control/plc/interoperability/opcua/ua_api.c b/APP_Framework/Framework/control/plc/interoperability/opcua/ua_api.c
index c4950862f..f14a69934 100755
--- a/APP_Framework/Framework/control/plc/interoperability/opcua/ua_api.c
+++ b/APP_Framework/Framework/control/plc/interoperability/opcua/ua_api.c
@@ -15,25 +15,29 @@
 #include "ua_api.h"
 
 
-#define UA_DEV_IP_LEN 128
-#define UA_NODE_LEN 50
-
-typedef struct _ua_dev_t
-{
-    char ua_remote_ip[UA_DEV_IP_LEN];
-    char ua_node[UA_NODE_LEN];
-    UA_Client *client;
-}ua_dev_t;
-
-
 int ua_open(void *dev)
 {
     ua_dev_t *pdev = (ua_dev_t *)dev;
 
     pdev->client = UA_Client_new();
+
+    ua_pr_info("ua: [%s] start ...\n", __func__);
+
+    if (pdev->client == NULL)
+    {
+        ua_print("ua: [%s] tcp client null\n", __func__);
+        return EEMPTY;
+    }
+
+    UA_ClientConfig *config = UA_Client_getConfig(pdev->client);
+    UA_ClientConfig_setDefault(config);
+
+    ua_pr_info("ua: [%s] %d %s\n", __func__, strlen(pdev->ua_remote_ip), pdev->ua_remote_ip);
+
     UA_StatusCode retval = UA_Client_connect(pdev->client, pdev->ua_remote_ip);
     if(retval != UA_STATUSCODE_GOOD) {
-        UA_Client_delete(pdev->client);
+//        UA_Client_delete(pdev->client);
+        ua_pr_info("ua: [%s] deleted ret %x!\n", __func__, retval);
         return (int)retval;
     }
     return EOK;
diff --git a/APP_Framework/Framework/control/plc/interoperability/opcua/ua_api.h b/APP_Framework/Framework/control/plc/interoperability/opcua/ua_api.h
index 38135fef1..f3d1103ee 100755
--- a/APP_Framework/Framework/control/plc/interoperability/opcua/ua_api.h
+++ b/APP_Framework/Framework/control/plc/interoperability/opcua/ua_api.h
@@ -14,10 +14,20 @@
 
 #include "open62541.h"
 
+#define UA_DEV_IP_LEN 128
+#define UA_NODE_LEN 50
+
+typedef struct _ua_dev_t
+{
+    char ua_remote_ip[UA_DEV_IP_LEN];
+    char ua_node[UA_NODE_LEN];
+    UA_Client *client;
+}ua_dev_t;
+
 #define OPC_SERVER "opc.tcp://192.168.250.5:4840"
 
-#define ua_print //printf
-#define ua_trace() //printf("ua: [%s] line %d checked!\n", __func__, __LINE__)
+#define ua_print //KPrintf
+#define ua_trace() //KPrintf("ua: [%s] line %d checked!\n", __func__, __LINE__)
 #define ua_pr_info KPrintf
 #define ua_debug
 
diff --git a/APP_Framework/Framework/control/plc/interoperability/opcua/ua_client.c b/APP_Framework/Framework/control/plc/interoperability/opcua/ua_client.c
index eb8e439ea..bda66dd07 100755
--- a/APP_Framework/Framework/control/plc/interoperability/opcua/ua_client.c
+++ b/APP_Framework/Framework/control/plc/interoperability/opcua/ua_client.c
@@ -149,19 +149,19 @@ void ua_read_attr(UA_Client *client)
 {
     /* Read attribute */
     UA_Int32 value = 0;
-    ua_print("\nReading the value of node (1, \"the.answer\"):\n");
+    ua_pr_info("\nReading the value of node (1, \"the.answer\"):\n");
     UA_Variant *val = UA_Variant_new();
     UA_StatusCode retval = UA_Client_readValueAttribute(client, UA_NODEID_STRING(1, "the.answer"), val);
     if(retval == UA_STATUSCODE_GOOD && UA_Variant_isScalar(val) &&
        val->type == &UA_TYPES[UA_TYPES_INT32]) {
             value = *(UA_Int32*)val->data;
-            ua_print("the value is: %i\n", value);
+            ua_pr_info("the value is: %i\n", value);
     }
     UA_Variant_delete(val);
 
     /* Write node attribute */
     value++;
-    ua_print("\nWriting a value of node (1, \"the.answer\"):\n");
+    ua_pr_info("\nWriting a value of node (1, \"the.answer\"):\n");
     UA_WriteRequest wReq;
     UA_WriteRequest_init(&wReq);
     wReq.nodesToWrite = UA_WriteValue_new();
@@ -174,7 +174,7 @@ void ua_read_attr(UA_Client *client)
     wReq.nodesToWrite[0].value.value.data = &value;
     UA_WriteResponse wResp = UA_Client_Service_write(client, wReq);
     if(wResp.responseHeader.serviceResult == UA_STATUSCODE_GOOD)
-        ua_print("the new value is: %i\n", value);
+        ua_pr_info("the new value is: %i\n", value);
 
     UA_WriteRequest_clear(&wReq);
     UA_WriteResponse_clear(&wResp);
@@ -297,7 +297,7 @@ int ua_get_server_info(UA_Client *client)
 
 #ifdef UA_ENABLE_SUBSCRIPTIONS
     /* Take another look at the.answer */
-    UA_Client_run_iterate(client, 100);
+    UA_Client_run_iterate(client, 10000);
     /* Delete the subscription */
     if(UA_Client_Subscriptions_deleteSingle(client, subId) == UA_STATUSCODE_GOOD)
         ua_print("Subscription removed\n");
diff --git a/APP_Framework/Framework/control/plc/shared/plc.c b/APP_Framework/Framework/control/plc/shared/plc.c
index e03d5a24b..e1af3da34 100755
--- a/APP_Framework/Framework/control/plc/shared/plc.c
+++ b/APP_Framework/Framework/control/plc/shared/plc.c
@@ -25,13 +25,6 @@
 #include "plc_bus.h"
 #include "plc_dev.h"
 
-#define PLC_BUS_NAME "plc bus"
-#define PLC_DRV_NAME "plc driver"
-
-struct PlcDevice plc_device;
-struct PlcBus plc_bus;
-struct PlcDriver plc_drv;
-
 
 static DoubleLinklistType plcdev_list;
 
@@ -52,7 +45,7 @@ static int PlcDeviceOpen(void *dev)
 
     if(plc_dev->net == PLC_IND_ENET_OPCUA)
     {
-        return ua_open(dev);
+        return ua_open(plc_dev->priv_data);
     }
 
     return EOK;
@@ -66,21 +59,21 @@ static void PlcDeviceClose(void *dev)
 
     if(plc_dev->net == PLC_IND_ENET_OPCUA)
     {
-        ua_close(dev);
+        ua_close(plc_dev->priv_data);
     }
 }
 
 static int PlcDeviceWrite(void *dev, const void *buf, size_t len)
 {
     NULL_PARAM_CHECK(dev);
-    NULL_PARAM_CHECK(write_param);
+    NULL_PARAM_CHECK(buf);
 
     int ret;
     struct PlcDevice *plc_dev = (struct PlcDevice *)dev;
 
     if(plc_dev->net == PLC_IND_ENET_OPCUA)
     {
-        ret = ua_write(dev, buf, len);
+        ret = ua_write(plc_dev->priv_data, buf, len);
     }
 
     return ret;
@@ -89,20 +82,20 @@ static int PlcDeviceWrite(void *dev, const void *buf, size_t len)
 static int PlcDeviceRead(void *dev, void *buf, size_t len)
 {
     NULL_PARAM_CHECK(dev);
-    NULL_PARAM_CHECK(read_param);
+    NULL_PARAM_CHECK(buf);
 
     int ret;
     struct PlcDevice *plc_dev = (struct PlcDevice *)dev;
 
     if(plc_dev->net == PLC_IND_ENET_OPCUA)
     {
-        ret = ua_read(dev, buf, len);
+        ret = ua_read(plc_dev->priv_data, buf, len);
     }
 
     return ret;
 }
 
-static const struct PlcOps plc_done =
+static struct PlcOps plc_done =
 {
     .open = PlcDeviceOpen,
     .close = PlcDeviceClose,
@@ -145,6 +138,7 @@ int PlcDevRegister(struct PlcDevice *plc_device, void *plc_param, const char *de
 
     if (DEV_INSTALL != plc_device->state) {
         strncpy(plc_device->name, device_name, strlen(device_name));
+        plc_device->ops = &plc_done;
         DoubleLinkListInsertNodeAfter(&plcdev_list, &(plc_device->link));
         plc_device->state = DEV_INSTALL;
     } else {
@@ -189,17 +183,3 @@ int PlcDeviceAttachToBus(const char *dev_name, const char *bus_name)
     return EOK;
 }
 
-void PlcTestInit(void)
-{
-    PlcBusInit(&plc_bus, PLC_BUS_NAME);
-    PlcDriverInit(&plc_drv, PLC_DRV_NAME);
-}
-
-void test_plc_bus(int argc, char *argv[])
-{
-    PlcTestInit();
-}
-
-SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0) | SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN) | SHELL_CMD_PARAM_NUM(3),
-     plc, test_plc_bus, test PLC);
-
diff --git a/APP_Framework/Framework/control/plc/shared/plc.h b/APP_Framework/Framework/control/plc/shared/plc.h
index 0c412b836..4cd097d1d 100755
--- a/APP_Framework/Framework/control/plc/shared/plc.h
+++ b/APP_Framework/Framework/control/plc/shared/plc.h
@@ -58,6 +58,11 @@ union PlcCfg {
 
 struct PlcDevice;
 
+#undef open
+#undef close
+#undef read
+#undef write
+
 // operation API
 struct PlcOps {
    int (*open)(void *dev); // open and connect PLC device
@@ -123,9 +128,13 @@ struct PlcDevice {
 
     struct PlcInfo info;/* Plc info, such as vendor name and model name */
     union PlcCfg cfg;
-    struct PlcOps ops; /* filesystem-like APIs for data transferring */
+    struct PlcOps *ops; /* filesystem-like APIs for data transferring */
     struct PlcInterface interface; /* protocols used for transferring data from program to plc */
+
+    void *priv_data;
     DoubleLinklistType link;/* link list node */
 };
 
+int PlcDevRegister(struct PlcDevice *plc_device, void *plc_param, const char *device_name);
+
 #endif
diff --git a/APP_Framework/Framework/control/plc/shared/plc_dev.c b/APP_Framework/Framework/control/plc/shared/plc_dev.c
index 36dbb1969..1aea23da7 100755
--- a/APP_Framework/Framework/control/plc/shared/plc_dev.c
+++ b/APP_Framework/Framework/control/plc/shared/plc_dev.c
@@ -231,7 +231,6 @@ int PlcHardwareDevConfigureCs(struct HardwareDev *dev, uint8 plc_chip_select, ui
     msg->plc_chip_select = plc_chip_select;
     msg->plc_cs_release = plc_cs_release;
 
-
     ret = plc_dev->plc_dev_done->dev_write(plc_dev, msg);
 
     x_free(msg);
diff --git a/Ubiquitous/XiUOS/path_kernel.mk b/Ubiquitous/XiUOS/path_kernel.mk
index 7f198a49a..f96e70009 100755
--- a/Ubiquitous/XiUOS/path_kernel.mk
+++ b/Ubiquitous/XiUOS/path_kernel.mk
@@ -259,6 +259,7 @@ endif
 ifeq ($(CONFIG_SUPPORT_CONTROL_FRAMEWORK), y)
 KERNELPATHS += -I$(KERNEL_ROOT)/../../APP_Framework/Framework/control #
 KERNELPATHS += -I$(KERNEL_ROOT)/../../APP_Framework/Framework/control/plc/interoperability/opcua #
+KERNELPATHS += -I$(KERNEL_ROOT)/../../APP_Framework/Framework/control/plc/shared #
 KERNELPATHS += -I$(KERNEL_ROOT)/../../APP_Framework/lib/cJSON
 endif
 
diff --git a/Ubiquitous/XiUOS/resources/ethernet/LwIP/arch/lwipopts.h b/Ubiquitous/XiUOS/resources/ethernet/LwIP/arch/lwipopts.h
index 2b058129c..2dbb0bb6d 100644
--- a/Ubiquitous/XiUOS/resources/ethernet/LwIP/arch/lwipopts.h
+++ b/Ubiquitous/XiUOS/resources/ethernet/LwIP/arch/lwipopts.h
@@ -216,7 +216,7 @@ The STM32F4x7 allows computing and verifying the IP, UDP, TCP and ICMP checksums
 #define DEFAULT_THREAD_STACKSIZE        1024
 
 #define TCPIP_THREAD_NAME               "tcp"
-#define TCPIP_THREAD_STACKSIZE          8192
+#define TCPIP_THREAD_STACKSIZE          4096
 #define TCPIP_MBOX_SIZE                 10
 #define TCPIP_THREAD_PRIO               15
 
diff --git a/Ubiquitous/XiUOS/resources/ethernet/LwIP/arch/sys_arch.c b/Ubiquitous/XiUOS/resources/ethernet/LwIP/arch/sys_arch.c
index 9075d6ea9..5f707d7e2 100644
--- a/Ubiquitous/XiUOS/resources/ethernet/LwIP/arch/sys_arch.c
+++ b/Ubiquitous/XiUOS/resources/ethernet/LwIP/arch/sys_arch.c
@@ -454,8 +454,7 @@ void lwip_config_input(struct netif *net)
 {
   sys_thread_t th_id = 0;
 
-  th_id = sys_thread_new("eth_input", lwip_input_thread, net, LWIP_TASK_STACK_SIZE,
-    LWIP_DEMO_TASK_PRIO);
+  th_id = sys_thread_new("eth_input", lwip_input_thread, net, LWIP_TASK_STACK_SIZE, 15);
 
   if (th_id >= 0) {
     lw_print("%s %d successfully!\n", __func__, th_id);
@@ -479,6 +478,8 @@ void lwip_config_net(char *ip, char *mask, char *gw)
 #endif /* FSL_FEATURE_SOC_LPC_ENET_COUNT */
   };
 
+  ETH_BSP_Config();
+
   if(chk_lwip_bit(LWIP_INIT_FLAG))
   {
     lw_print("lw: [%s] already ...\n", __func__);
@@ -541,6 +542,8 @@ void lwip_config_tcp(char *ip, char *mask, char *gw)
 #endif /* FSL_FEATURE_SOC_LPC_ENET_COUNT */
   };
 
+  ETH_BSP_Config();
+
   if(chk_lwip_bit(LWIP_INIT_FLAG))
   {
     lw_print("lw: [%s] already ...\n", __func__);
diff --git a/Ubiquitous/XiUOS/resources/ethernet/LwIP/include/lwip/opt.h b/Ubiquitous/XiUOS/resources/ethernet/LwIP/include/lwip/opt.h
index 0d427d229..a304c67c2 100644
--- a/Ubiquitous/XiUOS/resources/ethernet/LwIP/include/lwip/opt.h
+++ b/Ubiquitous/XiUOS/resources/ethernet/LwIP/include/lwip/opt.h
@@ -1763,7 +1763,7 @@
  * sys_thread_new() when the thread is created.
  */
 #if !defined TCPIP_THREAD_PRIO || defined __DOXYGEN__
-#define TCPIP_THREAD_PRIO               25
+#define TCPIP_THREAD_PRIO               15
 #endif
 
 /**
diff --git a/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_config_demo.c b/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_config_demo.c
index b8fd680e5..026cf5f3c 100755
--- a/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_config_demo.c
+++ b/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_config_demo.c
@@ -60,7 +60,6 @@
 
 static void *lwip_config_test(void *param)
 {
-    ETH_BSP_Config();
     lwip_config_net(lwip_ipaddr, lwip_netmask, lwip_gwaddr);
 }
 
diff --git a/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_dhcp_demo.c b/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_dhcp_demo.c
index 956747d93..98960a067 100755
--- a/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_dhcp_demo.c
+++ b/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_dhcp_demo.c
@@ -138,8 +138,6 @@ void lwip_dhcp_test(void)
     static int flag = 0;
     char ip_addr[4] = {0, 0, 0, 0};
 
-    ETH_BSP_Config();
-
     lwip_config_net(ip_addr, ip_addr, ip_addr);
     set_lwip_bit(LWIP_PRINT_FLAG);
 
diff --git a/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_ping_demo.c b/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_ping_demo.c
index f84053730..0850f06e1 100755
--- a/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_ping_demo.c
+++ b/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_ping_demo.c
@@ -94,7 +94,6 @@ void lwip_ping_thread(int argc, char *argv[])
     lw_print("lw: [%s] argc %d\n", __func__, argc);
 
     IP4_ADDR(&ping_addr, lwip_gwaddr[0], lwip_gwaddr[1], lwip_gwaddr[2], lwip_gwaddr[3]);
-    ETH_BSP_Config();
     lwip_config_net(lwip_ipaddr, lwip_netmask, lwip_gwaddr);
     ping_init(&ping_addr);
 }
diff --git a/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_tcp_demo.c b/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_tcp_demo.c
index afc1aa67a..baa6d4348 100755
--- a/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_tcp_demo.c
+++ b/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_tcp_demo.c
@@ -102,7 +102,6 @@ void lwip_tcp_send_run(int argc, char *argv[])
         sscanf(argv[2], "%d.%d.%d.%d", &tcp_target[0], &tcp_target[1], &tcp_target[2], &tcp_target[3]);
     }
 
-    ETH_BSP_Config();
     lwip_config_tcp(lwip_ipaddr, lwip_netmask, lwip_gwaddr);
     sys_thread_new("tcp send", lwip_tcp_send_thread, NULL, LWIP_TASK_STACK_SIZE, LWIP_DEMO_TASK_PRIO);
 }
@@ -112,7 +111,6 @@ SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0) | SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN) |
 
 void lwip_tcp_recv_run(void)
 {
-    ETH_BSP_Config();
     lwip_config_net(lwip_ipaddr, lwip_netmask, lwip_gwaddr);
     tcpecho_raw_init();
 }
diff --git a/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_udp_demo.c b/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_udp_demo.c
index 5eb214771..bfb4eb24d 100755
--- a/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_udp_demo.c
+++ b/Ubiquitous/XiUOS/resources/ethernet/cmd_lwip/lwip_udp_demo.c
@@ -114,7 +114,6 @@ void *lwip_udp_send_run(int argc, char *argv[])
     }
     lw_print("lw: [%s] gw %d.%d.%d.%d\n", __func__, udp_target[0], udp_target[1], udp_target[2], udp_target[3]);
 
-    ETH_BSP_Config();
     lwip_config_tcp(lwip_ipaddr, lwip_netmask, lwip_gwaddr);
     sys_thread_new("udp socket send", lwip_udp_send, NULL, LWIP_TASK_STACK_SIZE, LWIP_DEMO_TASK_PRIO);
 }
@@ -177,8 +176,6 @@ void udpecho_raw_init(void)
 
 void lwip_udp_server(void)
 {
-    lw_print("lwip_udp_server\r\n");
-    ETH_BSP_Config();
     lwip_config_net(lwip_ipaddr, lwip_netmask, lwip_gwaddr);
     udpecho_raw_init();
 }