diff --git a/APP_Framework/Framework/connection/SConscript b/APP_Framework/Framework/connection/SConscript
new file mode 100644
index 000000000..4150ca779
--- /dev/null
+++ b/APP_Framework/Framework/connection/SConscript
@@ -0,0 +1,21 @@
+import os
+Import('RTT_ROOT')
+Import('rtconfig')
+from building import *
+
+cwd = GetCurrentDir()
+SOURCES = []
+if GetDepend(['SUPPORT_CONNECTION_FRAMEWORK']):
+    SOURCES = ['adapter.c'] +['adapter_agent.c']+ SOURCES
+path =  [cwd]
+objs = []
+group = DefineGroup('connection', SOURCES, depend = [], CPPPATH = [cwd])
+objs = objs + group
+list = os.listdir(cwd)
+if GetDepend(['SUPPORT_CONNECTION_FRAMEWORK']):
+    for d in list:
+        path = os.path.join(cwd, d)
+        if os.path.isfile(os.path.join(path, 'SConscript')):
+            objs = objs + SConscript(os.path.join(path, 'SConscript'))
+
+Return('objs')
diff --git a/APP_Framework/Framework/connection/adapter.c b/APP_Framework/Framework/connection/adapter.c
index 6d3d8f227..a4b0f4cc9 100644
--- a/APP_Framework/Framework/connection/adapter.c
+++ b/APP_Framework/Framework/connection/adapter.c
@@ -21,9 +21,11 @@
 #include <adapter.h>
 
 static DoublelistType adapter_list;
-
+#ifdef ADD_XIZI_FETURES
 static int adapter_list_lock;
-
+#else
+static pthread_mutex_t adapter_list_lock;
+#endif
 /**
  * @description: Init adapter framework
  * @return 0
@@ -481,6 +483,7 @@ int AdapterDeviceDisconnect(struct Adapter *adapter, unsigned char *priv_net_gro
  */
 int AdapterDeviceSetUp(struct Adapter *adapter)
 {
+    
     if (!adapter)
         return -1;
 
@@ -488,10 +491,10 @@ int AdapterDeviceSetUp(struct Adapter *adapter)
 
     struct IpProtocolDone *ip_done = NULL;
     struct PrivProtocolDone *priv_done = NULL;
-
     switch (adapter->net_protocol)
     {
     case PRIVATE_PROTOCOL:
+        
         priv_done = (struct PrivProtocolDone *)adapter->done;
         if (NULL == priv_done->setup)
             return 0;
@@ -515,6 +518,7 @@ int AdapterDeviceSetUp(struct Adapter *adapter)
             return 0;
         
         result = ip_done->setup(adapter);
+        
         if (0 == result) {
             printf("Device %s setup success.\n", adapter->name);
             adapter->adapter_status = INSTALL;
diff --git a/APP_Framework/Framework/connection/adapter_agent.c b/APP_Framework/Framework/connection/adapter_agent.c
index 29b4cae8f..15d1f7641 100755
--- a/APP_Framework/Framework/connection/adapter_agent.c
+++ b/APP_Framework/Framework/connection/adapter_agent.c
@@ -29,7 +29,9 @@
 #ifdef ADD_XIZI_FETURES
 # include <user_api.h>
 #endif
-
+#ifdef ADD_RTTHREAD_FETURES
+#include <rtthread.h>
+#endif
 #define AT_CMD_MAX_LEN 128
 #define AT_AGENT_MAX 2
 static char send_buf[AT_CMD_MAX_LEN];
@@ -139,7 +141,7 @@ int ATOrderSend(ATAgentType agent, uint32_t timeout_s, ATReplyType reply, const
 
     PrivMutexObtain(&agent->lock); 
     agent->receive_mode = AT_MODE;
-
+    
     memset(agent->maintain_buffer, 0x00, agent->maintain_max);
     agent->maintain_len = 0;
 
@@ -300,7 +302,7 @@ int EntmRecv(ATAgentType agent, char *rev_buffer, int buffer_len, int timeout_s)
     //PrivTaskDelay(1000);
     if (PrivSemaphoreObtainWait(&agent->entm_rx_notice, &abstime)) {
         printf("wait sem[%d] timeout\n",agent->entm_rx_notice);
-        return -ERROR;
+        return -1;
     }
     PrivMutexObtain(&agent->lock); 
 
@@ -390,7 +392,7 @@ static int GetCompleteATReply(ATAgentType agent)
                     memset(agent->maintain_buffer, 0x00, agent->maintain_max);
                     agent->maintain_len = 0;
                     PrivMutexAbandon(&agent->lock);
-                    return -ERROR;
+                    return -1;
                 }
                
                 printf("GetCompleteATReply done\n");
@@ -437,6 +439,7 @@ int DeleteATAgent(ATAgentType agent)
         printf("delete agent lock = %d\n",agent->lock.sem.semcount);
         PrivMutexDelete(&agent->lock);
     }
+#elif defined ADD_RTTHREAD_FETURES
 #else
     if (agent->lock) {
         printf("delete agent lock = %d\n",agent->lock);
@@ -448,12 +451,12 @@ int DeleteATAgent(ATAgentType agent)
         printf("delete agent entm_rx_notice = %d\n",agent->entm_rx_notice);
         PrivSemaphoreDelete(&agent->entm_rx_notice);
     }
-
-    if (agent->rsp_sem) {
-        printf("delete agent rsp_sem = %d\n",agent->rsp_sem);
-        PrivSemaphoreDelete(&agent->rsp_sem);
+#ifdef ADD_XIZI_FETURES
+     if (agent->rsp_sem) {
+         printf("delete agent rsp_sem = %d\n",agent->rsp_sem);
+         PrivSemaphoreDelete(&agent->rsp_sem);
     }
-
+#endif
     if (agent->maintain_buffer) {
         PrivFree(agent->maintain_buffer);
     }
diff --git a/APP_Framework/Framework/connection/at_agent.h b/APP_Framework/Framework/connection/at_agent.h
index c98428573..4ac0b4099 100755
--- a/APP_Framework/Framework/connection/at_agent.h
+++ b/APP_Framework/Framework/connection/at_agent.h
@@ -42,7 +42,6 @@ struct ATReply
     uint32 reply_len;
 };
 typedef struct ATReply *ATReplyType;
-
 struct ATAgent
 {
     char agent_name[64];
@@ -53,10 +52,10 @@ struct ATAgent
     uint32 maintain_len;
     uint32 maintain_max;
 
-#ifdef ADD_NUTTX_FETURES   
-    pthread_mutex_t lock;
-#else
+#ifdef ADD_XIZI_FETURES   
     int lock;
+#else
+    pthread_mutex_t lock;
 #endif
 
     ATReplyType reply;
@@ -64,8 +63,11 @@ struct ATAgent
     char reply_end_last_char;
     char reply_end_char;
     uint32 reply_char_num;
-    int rsp_sem;
-
+#ifdef ADD_XIZI_FETURES  
+	int rsp_sem;
+#else
+    sem_t rsp_sem;
+#endif
     pthread_t at_handler;
 
     #define ENTM_RECV_MAX 256
diff --git a/APP_Framework/Framework/connection/bluetooth/SConscript b/APP_Framework/Framework/connection/bluetooth/SConscript
new file mode 100644
index 000000000..3fecfb61c
--- /dev/null
+++ b/APP_Framework/Framework/connection/bluetooth/SConscript
@@ -0,0 +1,18 @@
+import os
+Import('RTT_ROOT')
+from building import *
+SOURCES = []
+SOURCES = ['adapter_bluetooth.c'] + SOURCES
+objs = []
+cwd = GetCurrentDir()
+path =  [cwd]
+group = DefineGroup('bluetooth', SOURCES, depend = [], CPPPATH = [cwd])
+objs =  objs + group
+list = os.listdir(cwd)
+
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        objs = objs + SConscript(os.path.join(path, 'SConscript'))
+
+Return('objs')
\ No newline at end of file
diff --git a/APP_Framework/Framework/connection/bluetooth/adapter_bluetooth.c b/APP_Framework/Framework/connection/bluetooth/adapter_bluetooth.c
index b8cc0694e..8b2c87bbb 100644
--- a/APP_Framework/Framework/connection/bluetooth/adapter_bluetooth.c
+++ b/APP_Framework/Framework/connection/bluetooth/adapter_bluetooth.c
@@ -78,13 +78,13 @@ int AdapterBlueToothInit(void)
     return ret;
 }
 
-/******************4G TEST*********************/
+/******************BT TEST*********************/
 int AdapterBlueToothTest(void)
 {
     const char *bluetooth_msg = "BT Adapter Test";
     char bluetooth_recv_msg[128];
     int len;
-    int baud_rate = BAUD_RATE_115200;
+    int baud_rate = BAUD_RATE_9600;
 
     struct Adapter *adapter =  AdapterDeviceFindByName(ADAPTER_BLUETOOTH_NAME);
 
@@ -99,7 +99,7 @@ int AdapterBlueToothTest(void)
         printf("bluetooth_recv_msg %s\n", bluetooth_recv_msg);
         AdapterDeviceSend(adapter, bluetooth_msg, len);
         printf("send %s after recv\n", bluetooth_msg);
-        PrivTaskDelay(100);
+        PrivTaskDelay(1000);
         memset(bluetooth_recv_msg, 0, 128);
     }
 
@@ -107,4 +107,9 @@ int AdapterBlueToothTest(void)
 
     return 0;    
 }
-SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_FUNC)|SHELL_CMD_PARAM_NUM(0)|SHELL_CMD_DISABLE_RETURN, AdapterBlueToothTest, AdapterBlueToothTest, show adapter BT information);
+#ifdef ADD_RTTHREAD_FETURES
+MSH_CMD_EXPORT(AdapterBlueToothTest,a bt adpter sample);
+#endif
+#ifdef ADD_XIZI_FETURES
+SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_FUNC)|SHELL_CMD_PARAM_NUM(0)|SHELL_CMD_DISABLE_RETURN, AdapterWifiTest, AdapterWifiTest, show adapter wifi information);
+#endif
\ No newline at end of file
diff --git a/APP_Framework/Framework/connection/bluetooth/hc08/Kconfig b/APP_Framework/Framework/connection/bluetooth/hc08/Kconfig
index 49a84ed96..8b17e83dd 100644
--- a/APP_Framework/Framework/connection/bluetooth/hc08/Kconfig
+++ b/APP_Framework/Framework/connection/bluetooth/hc08/Kconfig
@@ -36,5 +36,9 @@ if ADD_NUTTX_FETURES
 endif
 
 if ADD_RTTHREAD_FETURES
-
+        config ADAPTER_HC08_DRIVER
+                string "HC08 device uart driver path"
+                default "/dev/uart4"
+        config ADAPTER_HC08_WORK_ROLE
+                string "HC08 work role M(MASTER) or S(SLAVER)"
 endif
diff --git a/APP_Framework/Framework/connection/bluetooth/hc08/SConscript b/APP_Framework/Framework/connection/bluetooth/hc08/SConscript
new file mode 100644
index 000000000..5f904f361
--- /dev/null
+++ b/APP_Framework/Framework/connection/bluetooth/hc08/SConscript
@@ -0,0 +1,10 @@
+from building import *
+import os
+
+cwd = GetCurrentDir()
+src = []
+if GetDepend(['ADAPTER_HC08']):
+    src += ['hc08.c']
+group = DefineGroup('connection bluetooth hc08', src, depend = [], CPPPATH = [cwd])
+
+Return('group')
\ No newline at end of file
diff --git a/APP_Framework/Framework/connection/bluetooth/hc08/hc08.c b/APP_Framework/Framework/connection/bluetooth/hc08/hc08.c
index ddba196ab..bc20ef8bc 100644
--- a/APP_Framework/Framework/connection/bluetooth/hc08/hc08.c
+++ b/APP_Framework/Framework/connection/bluetooth/hc08/hc08.c
@@ -92,7 +92,7 @@ static int Hc08AtConfigure(ATAgentType agent, enum Hc08AtCmd hc08_at_cmd, void *
     ATReplyType reply = CreateATReply(64);
     if (NULL == reply) {
         printf("Hc08AtConfigure CreateATReply failed !\n");
-        return -ENOMEMORY;
+        return -5;
     }
     
     switch (hc08_at_cmd)
@@ -152,20 +152,20 @@ static int Hc08AtConfigure(ATAgentType agent, enum Hc08AtCmd hc08_at_cmd, void *
         ATOrderSend(agent, REPLY_TIME_OUT, reply, HC08_GET_ROLE_CMD);
         reply_ok_flag = 0;
         break;
-    // case HC08_AT_CMD_SET_ADDR:
-    //     ATOrderSend(agent, REPLY_TIME_OUT, reply, HC08_SET_ROLE_CMD);
-    //     break;
-    // case HC08_AT_CMD_GET_ADDR:
-    //     ATOrderSend(agent, REPLY_TIME_OUT, reply, HC08_GET_ROLE_CMD);
-    //     reply_ok_flag = 0;
-    //     break;
-    // case HC08_AT_CMD_SET_NAME:
-    //     ATOrderSend(agent, REPLY_TIME_OUT, reply, HC08_SET_NAME_CMD);
-    //     break;
-    // case HC08_AT_CMD_GET_NAME:
-    //     ATOrderSend(agent, REPLY_TIME_OUT, reply, HC08_GET_NAME_CMD);
-    //     reply_ok_flag = 0;
-    //     break;
+    case HC08_AT_CMD_SET_ADDR:
+        ATOrderSend(agent, REPLY_TIME_OUT, reply, HC08_SET_ROLE_CMD);
+        break;
+    case HC08_AT_CMD_GET_ADDR:
+        ATOrderSend(agent, REPLY_TIME_OUT, reply, HC08_GET_ROLE_CMD);
+        reply_ok_flag = 0;
+        break;
+    case HC08_AT_CMD_SET_NAME:
+        ATOrderSend(agent, REPLY_TIME_OUT, reply, HC08_SET_NAME_CMD);
+        break;
+    case HC08_AT_CMD_GET_NAME:
+        ATOrderSend(agent, REPLY_TIME_OUT, reply, HC08_GET_NAME_CMD);
+        reply_ok_flag = 0;
+        break;
     default:
         printf("hc08 do not support no.%d cmd\n", hc08_at_cmd);
         DeleteATReply(reply);
@@ -209,7 +209,7 @@ static int Hc08Open(struct Adapter *adapter)
     if (!adapter->agent) {
         char *agent_name = "bluetooth_uart_client";
         printf("InitATAgent agent_name %s fd %u\n", agent_name, adapter->fd);
-        if (EOK != InitATAgent(agent_name, adapter->fd, 512)) {
+        if (0 != InitATAgent(agent_name, adapter->fd, 512)) {
             printf("at agent init failed !\n");
             return -1;
         }
@@ -343,7 +343,7 @@ static int Hc08Connect(struct Adapter *adapter, enum NetRoleType net_role, const
 
 static int Hc08Send(struct Adapter *adapter, const void *buf, size_t len)
 {
-    x_err_t result = EOK;
+    long result = 0;
     if (adapter->agent) {
         EntmSend(adapter->agent, (const char *)buf, len);
     } else {
diff --git a/APP_Framework/Framework/connection/wifi/SConscript b/APP_Framework/Framework/connection/wifi/SConscript
new file mode 100644
index 000000000..49378ad9f
--- /dev/null
+++ b/APP_Framework/Framework/connection/wifi/SConscript
@@ -0,0 +1,18 @@
+import os
+Import('RTT_ROOT')
+from building import *
+SOURCES = []
+SOURCES = ['adapter_wifi.c'] + SOURCES
+objs = []
+cwd = GetCurrentDir()
+path =  [cwd]
+group = DefineGroup('wifi', SOURCES, depend = [], CPPPATH = [cwd])
+objs =  objs + group
+list = os.listdir(cwd)
+
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        objs = objs + SConscript(os.path.join(path, 'SConscript'))
+
+Return('objs')
\ No newline at end of file
diff --git a/APP_Framework/Framework/connection/wifi/adapter_wifi.c b/APP_Framework/Framework/connection/wifi/adapter_wifi.c
index 2b9dddc76..039f96598 100644
--- a/APP_Framework/Framework/connection/wifi/adapter_wifi.c
+++ b/APP_Framework/Framework/connection/wifi/adapter_wifi.c
@@ -20,7 +20,9 @@
 
 #include <adapter.h>
 #include "adapter_wifi.h"
+#ifdef ADD_XIZI_FETURES
 #include <bus_pin.h>
+#endif
 
 #ifdef ADAPTER_HFA21_WIFI
 extern AdapterProductInfoType Hfa21WifiAttach(struct Adapter *adapter);
@@ -98,7 +100,7 @@ int AdapterWifiInit(void)
 }
 
 /******************wifi TEST*********************/
-int AdapterwifiTest(void)
+int AdapterWifiTest(void)
 {
     char cmd[64];
     int baud_rate = BAUD_RATE_57600;
@@ -107,30 +109,30 @@ int AdapterwifiTest(void)
 
 
 #ifdef ADAPTER_HFA21_DRIVER_EXT_PORT
-    // static BusType ch438_pin;
-    // ch438_pin = PinBusInitGet();
-	// struct PinParam pin_cfg;	
-	// int ret = 0;
+    static BusType ch438_pin;
+    ch438_pin = PinBusInitGet();
+	struct PinParam pin_cfg;	
+	int ret = 0;
 
-	// struct BusConfigureInfo configure_info;
-	// configure_info.configure_cmd = OPE_CFG;
-	// configure_info.private_data = (void *)&pin_cfg;
+	struct BusConfigureInfo configure_info;
+	configure_info.configure_cmd = OPE_CFG;
+	configure_info.private_data = (void *)&pin_cfg;
 
-    // pin_cfg.cmd = GPIO_CONFIG_MODE;
-    // pin_cfg.pin = 22;
-    // pin_cfg.mode = GPIO_CFG_OUTPUT;
+    pin_cfg.cmd = GPIO_CONFIG_MODE;
+    pin_cfg.pin = 22;
+    pin_cfg.mode = GPIO_CFG_OUTPUT;
 
-	// ret = BusDrvConfigure(ch438_pin->owner_driver, &configure_info);
+	ret = BusDrvConfigure(ch438_pin->owner_driver, &configure_info);
 
-    // struct PinStat pin_stat;
-	// struct BusBlockWriteParam write_param;
-	// struct BusBlockReadParam read_param;
-	// write_param.buffer = (void *)&pin_stat;
+    struct PinStat pin_stat;
+	struct BusBlockWriteParam write_param;
+	struct BusBlockReadParam read_param;
+	write_param.buffer = (void *)&pin_stat;
 	
-	// pin_stat.val = GPIO_HIGH;
+	pin_stat.val = GPIO_HIGH;
 
-    // pin_stat.pin = 22;
-    // BusDevWriteData(ch438_pin->owner_haldev, &write_param);
+    pin_stat.pin = 22;
+    BusDevWriteData(ch438_pin->owner_haldev, &write_param);
 
     int pin_fd;
     pin_fd = PrivOpen("/dev/pin_dev", O_RDWR);
@@ -168,7 +170,7 @@ int AdapterwifiTest(void)
     enum IpType ip_type = IPV4;
     AdapterDeviceConnect(adapter, net_role, ip, port, ip_type);
 
-    const char *wifi_msg = "LiuKai Test";
+    const char *wifi_msg = "Wifi Test";
     int len = strlen(wifi_msg);
     for(int i = 0;i < 10; ++i) {
         AdapterDeviceSend(adapter, wifi_msg, len);
@@ -176,12 +178,19 @@ int AdapterwifiTest(void)
     }
 
     char wifi_recv_msg[128];
-    while (1) {
+    for(int j=0;j<10;++j){
         AdapterDeviceRecv(adapter, wifi_recv_msg, 128);
+        PrivTaskDelay(1000);
     }
     
 }
-SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_FUNC)|SHELL_CMD_PARAM_NUM(0)|SHELL_CMD_DISABLE_RETURN, AdapterwifiTest, AdapterwifiTest, show adapter wifi information);
+
+#ifdef ADD_RTTHREAD_FETURES
+MSH_CMD_EXPORT(AdapterWifiTest,a wifi adpter sample);
+#endif
+#ifdef ADD_XIZI_FETURES
+SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_FUNC)|SHELL_CMD_PARAM_NUM(0)|SHELL_CMD_DISABLE_RETURN, AdapterWifiTest, AdapterWifiTest, show adapter wifi information);
+#endif
 
 int wifiopen(void)
 {
@@ -189,15 +198,18 @@ int wifiopen(void)
 
     AdapterDeviceOpen(adapter);
 }
+#ifdef ADD_XIZI_FETURES
 SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_FUNC)|SHELL_CMD_PARAM_NUM(0)|SHELL_CMD_DISABLE_RETURN, wifiopen, wifiopen, open adapter wifi );
+#endif
 int wificlose(void)
 {
     struct Adapter* adapter =  AdapterDeviceFindByName(ADAPTER_WIFI_NAME);
 
     AdapterDeviceClose(adapter);
 }
+#ifdef ADD_XIZI_FETURES
 SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_FUNC)|SHELL_CMD_PARAM_NUM(0)|SHELL_CMD_DISABLE_RETURN, wificlose, wificlose, close adapter wifi );
-
+#endif
 int wifisetup(int argc, char *argv[])
 {
     struct Adapter* adapter =  AdapterDeviceFindByName(ADAPTER_WIFI_NAME);
@@ -210,7 +222,9 @@ int wifisetup(int argc, char *argv[])
 
     AdapterDeviceSetUp(adapter);
 }
+#ifdef ADD_XIZI_FETURES
 SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN)|SHELL_CMD_PARAM_NUM(3)|SHELL_CMD_DISABLE_RETURN, wifisetup, wifisetup, setup adapter wifi );
+#endif
 int wifiaddrset(int argc, char *argv[])
 {
     struct Adapter* adapter =  AdapterDeviceFindByName(ADAPTER_WIFI_NAME);
@@ -222,16 +236,18 @@ int wifiaddrset(int argc, char *argv[])
     AdapterDevicePing(adapter, "36.152.44.95");///< ping www.baidu.com
     AdapterDeviceNetstat(adapter);
 }
+#ifdef ADD_XIZI_FETURES
 SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN)|SHELL_CMD_PARAM_NUM(4)|SHELL_CMD_DISABLE_RETURN, wifiaddrset, wifiaddrset, addrset adapter wifi);
-
+#endif
 int wifiping(int argc, char *argv[])
 {
     struct Adapter* adapter =  AdapterDeviceFindByName(ADAPTER_WIFI_NAME);
     printf("ping %s\n",argv[1]);
     AdapterDevicePing(adapter, argv[1]);
 }
+#ifdef ADD_XIZI_FETURES
 SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN)|SHELL_CMD_PARAM_NUM(3), wifiping, wifiping, wifiping adapter );
-
+#endif
 int wificonnect(int argc, char *argv[])
 {
     struct Adapter* adapter =  AdapterDeviceFindByName(ADAPTER_WIFI_NAME);
@@ -250,7 +266,9 @@ int wificonnect(int argc, char *argv[])
 
     AdapterDeviceConnect(adapter, net_role, ip, port, ip_type);
 }
+#ifdef ADD_XIZI_FETURES
 SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN)|SHELL_CMD_PARAM_NUM(4)|SHELL_CMD_DISABLE_RETURN, wificonnect, wificonnect, wificonnect adapter);
+#endif
 int wifisend(int argc, char *argv[])
 {
     struct Adapter* adapter =  AdapterDeviceFindByName(ADAPTER_WIFI_NAME);
@@ -262,7 +280,9 @@ int wifisend(int argc, char *argv[])
         PrivTaskDelay(1000);
     }
 }
+#ifdef ADD_XIZI_FETURES
 SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN)|SHELL_CMD_PARAM_NUM(3)|SHELL_CMD_DISABLE_RETURN, wifisend, wifisend, wifisend adapter wifi information);
+#endif
 int wifirecv(int argc, char *argv[])
 {
     struct Adapter* adapter =  AdapterDeviceFindByName(ADAPTER_WIFI_NAME);
@@ -274,4 +294,6 @@ int wifirecv(int argc, char *argv[])
         printf("wifi recv [%s]\n",wifi_recv_msg);
     }
 }
+#ifdef ADD_XIZI_FETURES
 SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN)|SHELL_CMD_PARAM_NUM(3)|SHELL_CMD_DISABLE_RETURN, wifirecv, wifirecv, wifirecv adapter wifi information);
+#endif
diff --git a/APP_Framework/Framework/connection/wifi/hfa21_wifi/Kconfig b/APP_Framework/Framework/connection/wifi/hfa21_wifi/Kconfig
index b4fff97ac..cc248bd79 100755
--- a/APP_Framework/Framework/connection/wifi/hfa21_wifi/Kconfig
+++ b/APP_Framework/Framework/connection/wifi/hfa21_wifi/Kconfig
@@ -29,5 +29,7 @@ if ADD_NUTTX_FETURES
 endif
 
 if ADD_RTTHREAD_FETURES
-
+        config ADAPTER_HFA21_DRIVER
+                string "HFA21 device uart driver path"
+                default "/dev/uart3" 
 endif
diff --git a/APP_Framework/Framework/connection/wifi/hfa21_wifi/SConscript b/APP_Framework/Framework/connection/wifi/hfa21_wifi/SConscript
new file mode 100644
index 000000000..093664350
--- /dev/null
+++ b/APP_Framework/Framework/connection/wifi/hfa21_wifi/SConscript
@@ -0,0 +1,10 @@
+from building import *
+import os
+
+cwd = GetCurrentDir()
+src = []
+if GetDepend(['ADAPTER_HFA21_WIFI']):
+    src += ['hfa21_wifi.c']
+group = DefineGroup('connection wifi hfa21', src, depend = [], CPPPATH = [cwd])
+
+Return('group')
\ No newline at end of file
diff --git a/APP_Framework/Framework/connection/wifi/hfa21_wifi/hfa21_wifi.c b/APP_Framework/Framework/connection/wifi/hfa21_wifi/hfa21_wifi.c
index 1d1ad2df4..2cc263416 100755
--- a/APP_Framework/Framework/connection/wifi/hfa21_wifi/hfa21_wifi.c
+++ b/APP_Framework/Framework/connection/wifi/hfa21_wifi/hfa21_wifi.c
@@ -20,7 +20,8 @@
 
 #include <adapter.h>
 #include <at_agent.h>
-
+#include <transform.h>
+#include <string.h>
 #define LEN_PARA_BUF 128
 
 static int Hfa21WifiSetDown(struct Adapter *adapter_at);
@@ -28,10 +29,11 @@ static int Hfa21WifiSetDown(struct Adapter *adapter_at);
 /**
  * @description: enter AT command mode
  * @param at_agent - wifi device agent pointer
- * @return success: EOK
+ * @return success: 0
  */
 static int Hfa21WifiInitAtCmd(ATAgentType at_agent)
 {
+    
     ATOrderSend(at_agent, REPLY_TIME_OUT, NULL, "+++");
     PrivTaskDelay(100);
 
@@ -44,7 +46,7 @@ static int Hfa21WifiInitAtCmd(ATAgentType at_agent)
 /**
  * @description: Open wifi
  * @param adapter - wifi device pointer
- * @return success: EOK, failure: ENOMEMORY
+ * @return success: 0, failure: 5
  */
 static int Hfa21WifiOpen(struct Adapter *adapter)
 {
@@ -58,7 +60,7 @@ static int Hfa21WifiOpen(struct Adapter *adapter)
     /*step2: init AT agent*/
     if (!adapter->agent) {
         char *agent_name = "wifi_uart_client";
-        if (EOK != InitATAgent(agent_name, adapter->fd, 512)) {
+        if (0 != InitATAgent(agent_name, adapter->fd, 512)) {
             printf("at agent init failed !\n");
             return -1;
         }
@@ -75,7 +77,7 @@ static int Hfa21WifiOpen(struct Adapter *adapter)
 /**
  * @description: Close wifi
  * @param adapter - wifi device pointer
- * @return success: EOK
+ * @return success: 0
  */
 static int Hfa21WifiClose(struct Adapter *adapter)
 {
@@ -87,11 +89,11 @@ static int Hfa21WifiClose(struct Adapter *adapter)
  * @param adapter - wifi device pointer
  * @param data - data buffer
  * @param data - data length
- * @return success: EOK
+ * @return success: 0
  */
 static int Hfa21WifiSend(struct Adapter *adapter, const void *data, size_t len)
 {
-    x_err_t result = EOK;
+    long result = 0;
     if (adapter->agent) {
         EntmSend(adapter->agent, (const char *)data, len);
     }else {
@@ -108,11 +110,11 @@ __exit:
  * @param adapter - wifi device pointer
  * @param data - data buffer
  * @param data - data length
- * @return success: EOK
+ * @return success: 0
  */
 static int Hfa21WifiReceive(struct Adapter *adapter, void *rev_buffer, size_t buffer_len)
 {
-    x_err_t result = EOK;
+    long result = 0;
     printf("hfa21 receive waiting ... \n");
 
     if (adapter->agent) {
@@ -129,20 +131,19 @@ __exit:
 /**
  * @description: connnect wifi to internet
  * @param adapter - wifi device pointer
- * @return success: EOK
+ * @return success: 0
  */
 static int Hfa21WifiSetUp(struct Adapter *adapter)
 {
     uint8 wifi_ssid[LEN_PARA_BUF] = "AIIT-Guest";
     uint8 wifi_pwd[LEN_PARA_BUF] = "";
     char cmd[LEN_PARA_BUF];
-
+    
     struct ATAgent *agent = adapter->agent;
-
+   
     /* wait hfa21 device startup finish */
     PrivTaskDelay(5000);
-
-    Hfa21WifiInitAtCmd(agent);
+    Hfa21WifiInitAtCmd(agent);//err
 
     memset(cmd,0,sizeof(cmd));
     strcpy(cmd,"AT+FCLR\r");
@@ -181,7 +182,7 @@ static int Hfa21WifiSetUp(struct Adapter *adapter)
 /**
  * @description: disconnnect wifi from internet
  * @param adapter - wifi device pointer
- * @return success: EOK
+ * @return success: 0
  */
 static int Hfa21WifiSetDown(struct Adapter *adapter)
 {
@@ -199,7 +200,7 @@ static int Hfa21WifiSetDown(struct Adapter *adapter)
  * @param ip - ip address
  * @param gateway - gateway address
  * @param netmask - netmask address
- * @return success: EOK, failure: ENOMEMORY
+ * @return success: 0, failure: 5
  */
 static int Hfa21WifiSetAddr(struct Adapter *adapter, const char *ip, const char *gateway, const char *netmask)
 {
@@ -216,12 +217,12 @@ static int Hfa21WifiSetAddr(struct Adapter *adapter, const char *ip, const char
 
     Hfa21WifiInitAtCmd(adapter->agent);
 
-    x_err_t result = EOK;
+    long result = 0;
 
     ATReplyType reply = CreateATReply(64);
     if (NULL == reply) {
         printf("at_create_resp failed ! \n");
-        result = ENOMEMORY;
+        result = 5;
         goto __exit;
     }
 
@@ -253,12 +254,12 @@ __exit:
  * @description: wifi ping function
  * @param adapter - wifi device pointer
  * @param destination - domain name or ip address
- * @return success: EOK, failure: ENOMEMORY
+ * @return success: 0, failure: 5
  */
 static int Hfa21WifiPing(struct Adapter *adapter, const char *destination)
 {
-    char *ping_result = NONE;
-    char *dst = NONE;
+    char *ping_result = (0);
+    char *dst = (0);
     ping_result = (char *) PrivCalloc(1, 17);
     dst = (char *) PrivCalloc(1, 17);
     strcpy(dst, destination);
@@ -266,12 +267,12 @@ static int Hfa21WifiPing(struct Adapter *adapter, const char *destination)
 
     Hfa21WifiInitAtCmd(adapter->agent);
 
-    uint32 result = EOK;
+    uint32 result = 0;
 
     ATReplyType reply = CreateATReply(64);
     if (NULL == reply) {
         printf("at_create_resp failed ! \n");
-        result = ENOMEMORY;
+        result = 5;
         goto __exit;
     }
 
@@ -302,7 +303,7 @@ __exit:
 /**
  * @description: display wifi network configuration
  * @param adapter - wifi device pointer
- * @return success: EOK, failure: ENOMEMORY
+ * @return success: 0, failure: 5
  */
 static int Hfa21WifiNetstat(struct Adapter *adapter)
 {
@@ -334,7 +335,7 @@ static int Hfa21WifiNetstat(struct Adapter *adapter)
 
     reply = CreateATReply(HFA21_NETSTAT_RESP_SIZE);
     if (reply == NULL) {
-        result = ENOMEMORY;
+        result = 5;
         goto __exit;
     }
 
@@ -384,7 +385,7 @@ static int Hfa21WifiNetstat(struct Adapter *adapter)
     else
         printf("local ip: %s\nnetmask: %s\n", local_ipaddr, netmask);
 
-    return EOK;
+    return 0;
 
 __exit:
     if (reply)
@@ -410,15 +411,15 @@ __exit:
  */
 static int Hfa21WifiConnect(struct Adapter *adapter, enum NetRoleType net_role, const char *ip, const char *port, enum IpType ip_type)
 {
-    int result = EOK;
-    ATReplyType reply = NONE;
+    int result = 0;
+    ATReplyType reply = (0);
     char cmd[LEN_PARA_BUF];
     struct ATAgent *agent = adapter->agent;
 
     reply = CreateATReply(64);
-    if (reply == NONE) {
+    if (reply == (0)) {
         printf("no memory for reply struct.");
-        return ENOMEMORY;
+        return 5;
     }
 
     Hfa21WifiInitAtCmd(adapter->agent);
@@ -505,7 +506,7 @@ static const struct IpProtocolDone hfa21_wifi_done =
 
 /**
  * @description: Register wifi device hfa21
- * @return success: EOK, failure: ERROR
+ * @return success: 0, failure: ERROR
  */
 AdapterProductInfoType Hfa21WifiAttach(struct Adapter *adapter)
 {
diff --git a/APP_Framework/Framework/transform_layer/xizi/transform.c b/APP_Framework/Framework/transform_layer/xizi/transform.c
index 6d2e69dd6..c3bd52813 100644
--- a/APP_Framework/Framework/transform_layer/xizi/transform.c
+++ b/APP_Framework/Framework/transform_layer/xizi/transform.c
@@ -171,6 +171,7 @@ int PrivIoctl(int fd, int cmd, void *args)
         break;
     case ADC_TYPE:
     case DAC_TYPE:
+    case WDT_TYPE:
         ret = ioctl(fd, cmd, ioctl_cfg->args);
         break;
     default:
diff --git a/APP_Framework/Framework/transform_layer/xizi/transform.h b/APP_Framework/Framework/transform_layer/xizi/transform.h
index 341709a65..2b071dca2 100644
--- a/APP_Framework/Framework/transform_layer/xizi/transform.h
+++ b/APP_Framework/Framework/transform_layer/xizi/transform.h
@@ -35,6 +35,9 @@ extern "C" {
 #define OPE_INT                 0x0000
 #define OPE_CFG                 0x0001
 
+#define OPER_WDT_SET_TIMEOUT    0x0002
+#define OPER_WDT_KEEPALIVE      0x0003
+
 #define NAME_NUM_MAX            32
 
 /*********************GPIO define*********************/
@@ -142,6 +145,7 @@ enum IoctlDriverType
     LCD_TYPE,
     ADC_TYPE,
     DAC_TYPE,
+    WDT_TYPE,
     DEFAULT_TYPE,
 };
 
diff --git a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-arm32-board/.config b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-arm32-board/.config
index aa3ade701..a6863efd4 100644
--- a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-arm32-board/.config
+++ b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-arm32-board/.config
@@ -285,8 +285,8 @@ CONFIG_BSP_USING_GPIO=y
 CONFIG_BSP_USING_UART=y
 CONFIG_BSP_USING_UART1=y
 # CONFIG_BSP_USING_UART2 is not set
-# CONFIG_BSP_USING_UART3 is not set
-# CONFIG_BSP_USING_UART4 is not set
+CONFIG_BSP_USING_UART3=y
+CONFIG_BSP_USING_UART4=y
 # CONFIG_BSP_USING_I2C1 is not set
 # CONFIG_BSP_USING_SPI is not set
 # CONFIG_BSP_USING_CH438 is not set
@@ -317,11 +317,27 @@ CONFIG_USB_DEVICE_NAME="usb_dev"
 # Framework
 #
 CONFIG_TRANSFORM_LAYER_ATTRIUBUTE=y
-CONFIG_ADD_XIZI_FETURES=y
+# CONFIG_ADD_XIZI_FETURES is not set
 # CONFIG_ADD_NUTTX_FETURES is not set
-# CONFIG_ADD_RTTHREAD_FETURES is not set
+CONFIG_ADD_RTTHREAD_FETURES=y
 # CONFIG_SUPPORT_SENSOR_FRAMEWORK is not set
-# CONFIG_SUPPORT_CONNECTION_FRAMEWORK is not set
+CONFIG_SUPPORT_CONNECTION_FRAMEWORK=y
+CONFIG_CONNECTION_FRAMEWORK_DEBUG=y
+# CONFIG_CONNECTION_INDUSTRIAL_ETHERNET is not set
+# CONFIG_CONNECTION_INDUSTRIAL_FIELDBUS is not set
+# CONFIG_CONNECTION_INDUSTRIAL_WLAN is not set
+# CONFIG_CONNECTION_ADAPTER_LORA is not set
+# CONFIG_CONNECTION_ADAPTER_4G is not set
+# CONFIG_CONNECTION_ADAPTER_NB is not set
+# CONFIG_CONNECTION_ADAPTER_WIFI is not set
+# CONFIG_CONNECTION_ADAPTER_ETHERNET is not set
+CONFIG_CONNECTION_ADAPTER_BLUETOOTH=y
+CONFIG_ADAPTER_HC08=y
+CONFIG_ADAPTER_BLUETOOTH_HC08="hc08"
+CONFIG_ADAPTER_HC08_WORK_ROLE="M"
+CONFIG_ADAPTER_HC08_DRIVER="/dev/uart4"
+# CONFIG_CONNECTION_ADAPTER_ZIGBEE is not set
+# CONFIG_CONNECTION_ADAPTER_5G is not set
 # CONFIG_SUPPORT_KNOWING_FRAMEWORK is not set
 # CONFIG_SUPPORT_CONTROL_FRAMEWORK is not set
 
diff --git a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-arm32-board/rtconfig.h b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-arm32-board/rtconfig.h
index da4679060..8d36278d9 100644
--- a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-arm32-board/rtconfig.h
+++ b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-arm32-board/rtconfig.h
@@ -174,6 +174,8 @@
 #define BSP_USING_GPIO
 #define BSP_USING_UART
 #define BSP_USING_UART1
+#define BSP_USING_UART3
+#define BSP_USING_UART4
 #define BSP_USING_USB
 #define BSP_USING_STM32_USBH
 #define USB_BUS_NAME "usb"
@@ -191,7 +193,14 @@
 /* Framework */
 
 #define TRANSFORM_LAYER_ATTRIUBUTE
-#define ADD_XIZI_FETURES
+#define ADD_RTTHREAD_FETURES
+#define SUPPORT_CONNECTION_FRAMEWORK
+#define CONNECTION_FRAMEWORK_DEBUG
+#define CONNECTION_ADAPTER_BLUETOOTH
+#define ADAPTER_HC08
+#define ADAPTER_BLUETOOTH_HC08 "hc08"
+#define ADAPTER_HC08_WORK_ROLE "M"
+#define ADAPTER_HC08_DRIVER "/dev/uart4"
 
 /* Security */
 
diff --git a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-arm32-board/test/IMG_1079.HEIC.JPG.JPG b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-arm32-board/test/IMG_1079.HEIC.JPG.JPG
new file mode 100644
index 000000000..798ad1893
Binary files /dev/null and b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-arm32-board/test/IMG_1079.HEIC.JPG.JPG differ
diff --git a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-arm32-board/test/IMG_1080.PNG.JPG b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-arm32-board/test/IMG_1080.PNG.JPG
new file mode 100644
index 000000000..f8379df87
Binary files /dev/null and b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/aiit-arm32-board/test/IMG_1080.PNG.JPG differ
diff --git a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/.config b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/.config
index d47741477..a10457d8d 100644
--- a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/.config
+++ b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/.config
@@ -149,7 +149,7 @@ CONFIG_RT_DFS_ELM_MAX_SECTOR_SIZE=512
 CONFIG_RT_DFS_ELM_REENTRANT=y
 CONFIG_RT_DFS_ELM_MUTEX_TIMEOUT=3000
 CONFIG_RT_USING_DFS_DEVFS=y
-# CONFIG_RT_USING_DFS_ROMFS is not set
+CONFIG_RT_USING_DFS_ROMFS=y
 # CONFIG_RT_USING_DFS_RAMFS is not set
 # CONFIG_RT_USING_DFS_NFS is not set
 
diff --git a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/SConscript b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/SConscript
index bf9a14de1..805811108 100644
--- a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/SConscript
+++ b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/SConscript
@@ -15,6 +15,9 @@ if GetDepend('BSP_USING_PHY') and GetDepend('PHY_USING_8720A'):
     src += ['./ports/LAN8720A.c']
 if GetDepend('BSP_USING_SDCARD'):
     src += ['./ports/sdcard_port.c']
+if GetDepend(['RT_USING_DFS_ROMFS']):
+    src += ['ports/romfs.c']
+    src += ['ports/mnt_romfs.c']
 group = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH, CPPDEFINES=CPPDEFINES)
 
 Return('group')
diff --git a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/board.c b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/board.c
index 93659f924..48db851df 100644
--- a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/board.c
+++ b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/board.c
@@ -1093,3 +1093,10 @@ void rt_hw_us_delay(rt_uint32_t usec)
 {
    ;
 }
+
+static int reboot(void)
+{
+    NVIC_SystemReset();
+    return 0;
+}
+MSH_CMD_EXPORT(reboot, reboot system);
\ No newline at end of file
diff --git a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/linker_scripts/link.lds b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/linker_scripts/link.lds
index b8c229ae3..f8cc5f191 100644
--- a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/linker_scripts/link.lds
+++ b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/linker_scripts/link.lds
@@ -226,7 +226,7 @@ SECTIONS
     __noncachedata_init_end__ = .;   /* create a global symbol at initialized ncache data end */
   } > m_nocache
   . = __noncachedata_init_end__;
-  .ncache :
+  .ncache(NOLOAD):
   {
     *(NonCacheable)
     . = ALIGN(4);
diff --git a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/ports/mnt_romfs.c b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/ports/mnt_romfs.c
new file mode 100644
index 000000000..64e931584
--- /dev/null
+++ b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/ports/mnt_romfs.c
@@ -0,0 +1,20 @@
+#include <rtthread.h>
+#if defined RT_USING_DFS &&  defined RT_USING_DFS_ROMFS
+#include <dfs_fs.h>
+#include "dfs_romfs.h"
+
+int mnt_init(void)
+{
+    if (dfs_mount(RT_NULL, "/", "rom", 0, &(romfs_root)) == 0)
+    {
+        rt_kprintf("ROM file system initializated!\n");
+    }
+    else
+    {
+        rt_kprintf("ROM file system initializate failed!\n");
+    }
+
+    return 0;
+}
+INIT_ENV_EXPORT(mnt_init);
+#endif
\ No newline at end of file
diff --git a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/ports/romfs.c b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/ports/romfs.c
new file mode 100644
index 000000000..deaa3c6bc
--- /dev/null
+++ b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/ports/romfs.c
@@ -0,0 +1,18 @@
+/* Generated by mkromfs. Edit with caution. */
+#include <rtthread.h>
+#include <dfs_romfs.h>
+
+
+
+static const rt_uint8_t _romfs_root_romfstest_txt[] = {
+0x68,0x65,0x6c,0x6c,0x6f,0x20,0x78,0x69,0x64,0x61,0x74,0x6f,0x6e,0x67,0x0d,0x0a
+};
+
+static const struct romfs_dirent _romfs_root[] = {
+    {ROMFS_DIRENT_DIR, "SD", RT_NULL, 0},
+    {ROMFS_DIRENT_FILE, "romfstest.txt", (rt_uint8_t *)_romfs_root_romfstest_txt, sizeof(_romfs_root_romfstest_txt)/sizeof(_romfs_root_romfstest_txt[0])}
+};
+
+const struct romfs_dirent romfs_root = {
+    ROMFS_DIRENT_DIR, "/", (rt_uint8_t *)_romfs_root, sizeof(_romfs_root)/sizeof(_romfs_root[0])
+};
diff --git a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/ports/sdcard_port.c b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/ports/sdcard_port.c
index 084394790..62cf5deda 100644
--- a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/ports/sdcard_port.c
+++ b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/ports/sdcard_port.c
@@ -1,4 +1,3 @@
-
 #include <rtdevice.h>
 #include <rtthread.h>
 #include "drv_gpio.h"
@@ -15,7 +14,11 @@ int sd_mount()
     if (result == MMCSD_HOST_PLUGED)
     {
         /* mount sd card fat partition 1 as root directory */
-        if (dfs_mount("sd0", "/", "elm", 0, 0) == 0)
+        #ifdef RT_USING_DFS_ROMFS
+        if(dfs_mount("sd0", "/SD", "elm", 0, 0) == 0)
+        #else
+        if(dfs_mount("sd0", "/", "elm", 0, 0) == 0)
+        #endif
         {
             LOG_I("File System initialized!\n");
             return RT_EOK;
diff --git a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/rtconfig.h b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/rtconfig.h
index 565db313f..e8716b183 100644
--- a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/rtconfig.h
+++ b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/rtconfig.h
@@ -101,6 +101,7 @@
 #define RT_DFS_ELM_REENTRANT
 #define RT_DFS_ELM_MUTEX_TIMEOUT 3000
 #define RT_USING_DFS_DEVFS
+#define RT_USING_DFS_ROMFS
 
 /* Device Drivers */
 
diff --git a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/rtconfig.py b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/rtconfig.py
index 02b8e1933..098d3bbdc 100644
--- a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/rtconfig.py
+++ b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/rtconfig.py
@@ -53,6 +53,9 @@ if PLATFORM == 'gcc':
     CPATH = ''
     LPATH = ''
 
+    AFLAGS += ' -D__STARTUP_INITIALIZE_NONCACHEDATA'
+    AFLAGS += ' -D__STARTUP_CLEAR_BSS'
+
     if BUILD == 'debug':
         CFLAGS += ' -gdwarf-2'
         AFLAGS += ' -gdwarf-2'
diff --git a/Ubiquitous/XiZi/board/aiit-arm32-board/third_party_driver/watchdog/connect_wdg.c b/Ubiquitous/XiZi/board/aiit-arm32-board/third_party_driver/watchdog/connect_wdg.c
index 07fac1408..ac28504ea 100644
--- a/Ubiquitous/XiZi/board/aiit-arm32-board/third_party_driver/watchdog/connect_wdg.c
+++ b/Ubiquitous/XiZi/board/aiit-arm32-board/third_party_driver/watchdog/connect_wdg.c
@@ -11,7 +11,7 @@
 */
 
 /**
-* @file connect_wdt.c
+* @file connect_wdg.c
 * @brief support aiit-arm32-board watchdog function and register to bus framework
 * @version 1.0 
 * @author AIIT XUOS Lab
diff --git a/Ubiquitous/XiZi/board/xidatong/board.c b/Ubiquitous/XiZi/board/xidatong/board.c
index add8b5c4c..9ea490b0c 100644
--- a/Ubiquitous/XiZi/board/xidatong/board.c
+++ b/Ubiquitous/XiZi/board/xidatong/board.c
@@ -52,6 +52,10 @@ Modification:
 #include <connect_sdio.h>
 #endif
 
+#ifdef BSP_USING_WDT
+#include <connect_wdt.h>
+#endif
+
 #ifdef BSP_USING_SEMC
 extern status_t BOARD_InitSEMC(void);
 #ifdef BSP_USING_EXTSRAM
@@ -331,5 +335,8 @@ void InitBoardHardware()
     Imxrt1052HwSdioInit();
 #endif
 
+#ifdef BSP_USING_WDT 
+    Imxrt1052HwWdgInit();
+#endif
 }
 
diff --git a/Ubiquitous/XiZi/board/xidatong/third_party_driver/Kconfig b/Ubiquitous/XiZi/board/xidatong/third_party_driver/Kconfig
index 1c4cbea81..a21740ed2 100644
--- a/Ubiquitous/XiZi/board/xidatong/third_party_driver/Kconfig
+++ b/Ubiquitous/XiZi/board/xidatong/third_party_driver/Kconfig
@@ -48,3 +48,11 @@ menuconfig BSP_USING_USB
     if BSP_USING_USB
         source "$BSP_DIR/third_party_driver/usb/Kconfig"
     endif
+
+menuconfig BSP_USING_WDT
+    bool "Using WATCHDOG TIMER device"
+    default n
+    select RESOURCES_WDT
+    if BSP_USING_WDT
+        source "$BSP_DIR/third_party_driver/wdt/Kconfig"
+    endif
diff --git a/Ubiquitous/XiZi/board/xidatong/third_party_driver/Makefile b/Ubiquitous/XiZi/board/xidatong/third_party_driver/Makefile
index b439cc98f..66f6f6bbf 100644
--- a/Ubiquitous/XiZi/board/xidatong/third_party_driver/Makefile
+++ b/Ubiquitous/XiZi/board/xidatong/third_party_driver/Makefile
@@ -24,4 +24,8 @@ ifeq ($(CONFIG_BSP_USING_USB),y)
   SRC_DIR += usb
 endif
 
+ifeq ($(CONFIG_BSP_USING_WDT),y)
+  SRC_DIR += wdt
+endif
+
 include $(KERNEL_ROOT)/compiler.mk
diff --git a/Ubiquitous/XiZi/board/xidatong/third_party_driver/include/connect_wdt.h b/Ubiquitous/XiZi/board/xidatong/third_party_driver/include/connect_wdt.h
new file mode 100644
index 000000000..a6cf61e29
--- /dev/null
+++ b/Ubiquitous/XiZi/board/xidatong/third_party_driver/include/connect_wdt.h
@@ -0,0 +1,38 @@
+/*
+* Copyright (c) 2020 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 connect_wdt.h
+* @brief define imxrt1052-board watchdog function and struct
+* @version 2.0 
+* @author AIIT XUOS Lab
+* @date 2022-05-06
+*/
+
+#ifndef CONNECT_WDT_H
+#define CONNECT_WDT_H
+
+#include <device.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int Imxrt1052HwWdgInit(void);
+
+int StartWatchdog(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/Ubiquitous/XiZi/board/xidatong/third_party_driver/include/fsl_wdog.h b/Ubiquitous/XiZi/board/xidatong/third_party_driver/include/fsl_wdog.h
new file mode 100644
index 000000000..924acce11
--- /dev/null
+++ b/Ubiquitous/XiZi/board/xidatong/third_party_driver/include/fsl_wdog.h
@@ -0,0 +1,312 @@
+/*
+ * Copyright (c) 2016, Freescale Semiconductor, Inc.
+ * Copyright 2016-2018 NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#ifndef _FSL_WDOG_H_
+#define _FSL_WDOG_H_
+
+#include "fsl_common.h"
+
+/*!
+ * @addtogroup wdog
+ * @{
+ */
+
+/*******************************************************************************
+ * Definitions
+ *******************************************************************************/
+/*! @name Driver version */
+/*@{*/
+/*! @brief Defines WDOG driver version */
+#define FSL_WDOG_DRIVER_VERSION (MAKE_VERSION(2, 1, 0))
+/*@}*/
+/*! @name Refresh sequence */
+/*@{*/
+#define WDOG_REFRESH_KEY (0xAAAA5555U)
+/*@}*/
+
+/*! @brief Defines WDOG work mode. */
+typedef struct _wdog_work_mode
+{
+    bool enableWait;  /*!< continue or suspend WDOG in wait mode  */
+    bool enableStop;  /*!< continue or suspend WDOG in stop mode  */
+    bool enableDebug; /*!< continue or suspend WDOG in debug mode */
+} wdog_work_mode_t;
+
+/*! @brief Describes WDOG configuration structure. */
+typedef struct _wdog_config
+{
+    bool enableWdog;             /*!< Enables or disables WDOG */
+    wdog_work_mode_t workMode;   /*!< Configures WDOG work mode in debug stop and wait mode */
+    bool enableInterrupt;        /*!< Enables or disables WDOG interrupt */
+    uint16_t timeoutValue;       /*!< Timeout value */
+    uint16_t interruptTimeValue; /*!< Interrupt count timeout value */
+    bool softwareResetExtension; /*!< software reset extension */
+    bool enablePowerDown;        /*!< power down enable bit */
+    bool enableTimeOutAssert;    /*!< Enable WDOG_B timeout assertion. */
+} wdog_config_t;
+
+/*!
+ * @brief WDOG interrupt configuration structure, default settings all disabled.
+ *
+ * This structure contains the settings for all of the WDOG interrupt configurations.
+ */
+enum _wdog_interrupt_enable
+{
+    kWDOG_InterruptEnable = WDOG_WICR_WIE_MASK /*!< WDOG timeout generates an interrupt before reset*/
+};
+
+/*!
+ * @brief WDOG status flags.
+ *
+ * This structure contains the WDOG status flags for use in the WDOG functions.
+ */
+enum _wdog_status_flags
+{
+    kWDOG_RunningFlag       = WDOG_WCR_WDE_MASK,   /*!< Running flag, set when WDOG is enabled*/
+    kWDOG_PowerOnResetFlag  = WDOG_WRSR_POR_MASK,  /*!< Power On flag, set when reset is the result of a powerOnReset*/
+    kWDOG_TimeoutResetFlag  = WDOG_WRSR_TOUT_MASK, /*!< Timeout flag, set when reset is the result of a timeout*/
+    kWDOG_SoftwareResetFlag = WDOG_WRSR_SFTW_MASK, /*!< Software flag, set when reset is the result of a software*/
+    kWDOG_InterruptFlag     = WDOG_WICR_WTIS_MASK  /*!< interrupt flag,whether interrupt has occurred or not*/
+};
+
+/*******************************************************************************
+ * API
+ *******************************************************************************/
+
+#if defined(__cplusplus)
+extern "C" {
+#endif /* __cplusplus */
+
+/*!
+ * @name WDOG Initialization and De-initialization.
+ * @{
+ */
+
+/*!
+ * @brief Initializes the WDOG configuration structure.
+ *
+ * This function initializes the WDOG configuration structure to default values. The default
+ * values are as follows.
+ * @code
+ *   wdogConfig->enableWdog = true;
+ *   wdogConfig->workMode.enableWait = true;
+ *   wdogConfig->workMode.enableStop = false;
+ *   wdogConfig->workMode.enableDebug = false;
+ *   wdogConfig->enableInterrupt = false;
+ *   wdogConfig->enablePowerdown = false;
+ *   wdogConfig->resetExtension = flase;
+ *   wdogConfig->timeoutValue = 0xFFU;
+ *   wdogConfig->interruptTimeValue = 0x04u;
+ * @endcode
+ *
+ * @param config Pointer to the WDOG configuration structure.
+ * @see wdog_config_t
+ */
+void WDOG_GetDefaultConfig(wdog_config_t *config);
+
+/*!
+ * @brief Initializes the WDOG.
+ *
+ * This function initializes the WDOG. When called, the WDOG runs according to the configuration.
+ *
+ * This is an example.
+ * @code
+ *   wdog_config_t config;
+ *   WDOG_GetDefaultConfig(&config);
+ *   config.timeoutValue = 0xffU;
+ *   config->interruptTimeValue = 0x04u;
+ *   WDOG_Init(wdog_base,&config);
+ * @endcode
+ *
+ * @param base   WDOG peripheral base address
+ * @param config The configuration of WDOG
+ */
+void WDOG_Init(WDOG_Type *base, const wdog_config_t *config);
+
+/*!
+ * @brief Shuts down the WDOG.
+ *
+ * This function shuts down the WDOG.
+ * Watchdog Enable bit is a write one once only bit. It is not
+ * possible to clear this bit by a software write, once the bit is set.
+ * This bit(WDE) can be set/reset only in debug mode(exception).
+ */
+void WDOG_Deinit(WDOG_Type *base);
+
+/*!
+ * @brief Enables the WDOG module.
+ *
+ * This function writes a value into the WDOG_WCR register to enable the WDOG.
+ * This is a write one once only bit. It is not possible to clear this bit by a software write,
+ * once the bit is set. only debug mode exception.
+ * @param base WDOG peripheral base address
+ */
+static inline void WDOG_Enable(WDOG_Type *base)
+{
+    base->WCR |= WDOG_WCR_WDE_MASK;
+}
+
+
+static inline void SET_WDOG_WDT(WDOG_Type *base)
+{
+	base->WCR |= WDOG_WCR_WDT_MASK;
+}
+
+
+/*!
+ * @brief Disables the WDOG module.
+ *
+ * This function writes a value into the WDOG_WCR register to disable the WDOG.
+ * This is a write one once only bit. It is not possible to clear this bit by a software write,once the bit is set.
+ * only debug mode exception
+ * @param base WDOG peripheral base address
+ */
+static inline void WDOG_Disable(WDOG_Type *base)
+{
+    base->WCR &= ~WDOG_WCR_WDE_MASK;
+}
+
+/*!
+ * @brief Trigger the system software reset.
+ *
+ * This function will write to the WCR[SRS] bit to trigger a software system reset.
+ * This bit will automatically resets to "1" after it has been asserted to "0".
+ * Note: Calling this API will reset the system right now, please using it with more attention.
+ *
+ * @param base WDOG peripheral base address
+ */
+static inline void WDOG_TriggerSystemSoftwareReset(WDOG_Type *base)
+{
+    base->WCR &= ~WDOG_WCR_SRS_MASK;
+}
+
+/*!
+ * @brief Trigger an output assertion.
+ *
+ * This function will write to the WCR[WDA] bit to trigger WDOG_B signal assertion.
+ * The WDOG_B signal can be routed to external pin of the chip, the output pin will turn to
+ * assertion along with WDOG_B signal.
+ * Note: The WDOG_B signal will remain assert until a power on reset occurred, so, please
+ * take more attention while calling it.
+ *
+ * @param base WDOG peripheral base address
+ */
+static inline void WDOG_TriggerSoftwareSignal(WDOG_Type *base)
+{
+    base->WCR &= ~WDOG_WCR_WDA_MASK;
+}
+
+/*!
+ * @brief Enables the WDOG interrupt.
+ *
+ *This bit is a write once only bit. Once the software does a write access to this bit, it will get
+ *locked and cannot be reprogrammed until the next system reset assertion
+ *
+ * @param base WDOG peripheral base address
+ * @param mask The interrupts to enable
+ * The parameter can be combination of the following source if defined.
+ * @arg kWDOG_InterruptEnable
+ */
+static inline void WDOG_EnableInterrupts(WDOG_Type *base, uint16_t mask)
+{
+    base->WICR |= mask;
+}
+
+/*!
+ * @brief Gets the WDOG all reset status flags.
+ *
+ * This function gets all reset status flags.
+ *
+ * @code
+ * uint16_t status;
+ * status = WDOG_GetStatusFlags (wdog_base);
+ * @endcode
+ * @param base        WDOG peripheral base address
+ * @return            State of the status flag: asserted (true) or not-asserted (false).@see _wdog_status_flags
+ *                    - true: a related status flag has been set.
+ *                    - false: a related status flag is not set.
+ */
+uint16_t WDOG_GetStatusFlags(WDOG_Type *base);
+
+/*!
+ * @brief Clears the WDOG flag.
+ *
+ * This function clears the WDOG status flag.
+ *
+ * This is an example for clearing the interrupt flag.
+ * @code
+ *   WDOG_ClearStatusFlags(wdog_base,KWDOG_InterruptFlag);
+ * @endcode
+ * @param base        WDOG peripheral base address
+ * @param mask        The status flags to clear.
+ *                    The parameter could be any combination of the following values.
+ *                    kWDOG_TimeoutFlag
+ */
+void WDOG_ClearInterruptStatus(WDOG_Type *base, uint16_t mask);
+
+/*!
+ * @brief Sets the WDOG timeout value.
+ *
+ * This function sets the timeout value.
+ * This function writes a value into WCR registers.
+ * The time-out value can be written at any point of time but it is loaded to the counter at the time
+ * when WDOG is enabled or after the service routine has been performed.
+ *
+ * @param base WDOG peripheral base address
+ * @param timeoutCount WDOG timeout value; count of WDOG clock tick.
+ */
+static inline void WDOG_SetTimeoutValue(WDOG_Type *base, uint16_t timeoutCount)
+{
+    base->WCR = (base->WCR & ~WDOG_WCR_WT_MASK) | WDOG_WCR_WT(timeoutCount);
+}
+
+/*!
+ * @brief Sets the WDOG interrupt count timeout value.
+ *
+ * This function sets the interrupt count timeout value.
+ * This function writes a value into WIC registers which are wirte-once.
+ * This field is write once only. Once the software does a write access to this field, it will get locked
+ * and cannot be reprogrammed until the next system reset assertion.
+ * @param base WDOG peripheral base address
+ * @param timeoutCount WDOG timeout value; count of WDOG clock tick.
+ */
+static inline void WDOG_SetInterrputTimeoutValue(WDOG_Type *base, uint16_t timeoutCount)
+{
+    base->WICR = (base->WICR & ~WDOG_WICR_WICT_MASK) | WDOG_WICR_WICT(timeoutCount);
+}
+
+/*!
+ * @brief Disable the WDOG power down enable bit.
+ *
+ * This function disable the WDOG power down enable(PDE).
+ * This function writes a value into WMCR registers which are wirte-once.
+ * This field is write once only. Once software sets this bit it cannot be reset until the next system reset.
+ * @param base WDOG peripheral base address
+ */
+static inline void WDOG_DisablePowerDownEnable(WDOG_Type *base)
+{
+    base->WMCR &= ~WDOG_WMCR_PDE_MASK;
+}
+
+/*!
+ * @brief Refreshes the WDOG timer.
+ *
+ * This function feeds the WDOG.
+ * This function should be called before the WDOG timer is in timeout. Otherwise, a reset is asserted.
+ *
+ * @param base WDOG peripheral base address
+ */
+void WDOG_Refresh(WDOG_Type *base);
+/*@}*/
+
+#if defined(__cplusplus)
+}
+#endif /* __cplusplus */
+
+/*! @}*/
+
+#endif /* _FSL_WDOG_H_ */
diff --git a/Ubiquitous/XiZi/board/xidatong/third_party_driver/wdt/Kconfig b/Ubiquitous/XiZi/board/xidatong/third_party_driver/wdt/Kconfig
new file mode 100644
index 000000000..f981c05cd
--- /dev/null
+++ b/Ubiquitous/XiZi/board/xidatong/third_party_driver/wdt/Kconfig
@@ -0,0 +1,13 @@
+if BSP_USING_WDT
+    config WDT_BUS_NAME
+        string "watchdog bus name"
+        default "wdt"
+
+    config WDT_DRIVER_NAME
+        string "watchdog driver name"
+        default "wdt_drv"
+
+    config WDT_DEVICE_NAME
+        string "watchdog device name"
+        default "wdt_dev"
+endif
diff --git a/Ubiquitous/XiZi/board/xidatong/third_party_driver/wdt/Makefile b/Ubiquitous/XiZi/board/xidatong/third_party_driver/wdt/Makefile
new file mode 100644
index 000000000..24c1c1efb
--- /dev/null
+++ b/Ubiquitous/XiZi/board/xidatong/third_party_driver/wdt/Makefile
@@ -0,0 +1,3 @@
+SRC_FILES := connect_wdt.c fsl_wdog.c 
+
+include $(KERNEL_ROOT)/compiler.mk
diff --git a/Ubiquitous/XiZi/board/xidatong/third_party_driver/wdt/connect_wdt.c b/Ubiquitous/XiZi/board/xidatong/third_party_driver/wdt/connect_wdt.c
new file mode 100644
index 000000000..e8638a972
--- /dev/null
+++ b/Ubiquitous/XiZi/board/xidatong/third_party_driver/wdt/connect_wdt.c
@@ -0,0 +1,182 @@
+/*
+* Copyright (c) 2020 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 connect_wdt.c
+* @brief support imxrt1052-board watchdog(WDG1) function and register to bus framework
+* @version 2.0 
+* @author AIIT XUOS Lab
+* @date 2022-05-06
+*/
+
+#include <connect_wdt.h>
+#include <fsl_wdog.h>
+
+static BusType wdt;
+static wdog_config_t wdog_config_t_param;
+
+void WDOG1_IRQHandler(void)
+{
+    WDOG_ClearInterruptStatus(WDOG1, kWDOG_InterruptFlag);
+    /* User code. User can do urgent case before timeout reset.
+     * IE. user can backup the ram data or ram log to flash.
+     * the period is set by config.interruptTimeValue, user need to
+     * check the period between interrupt and timeout.
+     */
+}
+
+static uint32 Imxrt1052WdgOpen(void *dev)
+{
+    return EOK;
+}
+
+static uint32 Imxrt1052WdgClose(void *dev)
+{
+    WDOG_Deinit(WDOG1);
+
+    return EOK;
+}
+
+static int Imxrt1052WdgInit(struct WdtHardwareDevice *dev, uint16_t timeout)
+{
+    /*
+        * wdogConfig->enableWdog = true;
+        * wdogConfig->workMode.enableWait = true;
+        * wdogConfig->workMode.enableStop = false;
+        * wdogConfig->workMode.enableDebug = false;
+        * wdogConfig->enableInterrupt = false;
+        * wdogConfig->enablePowerdown = false;
+        * wdogConfig->resetExtension = flase;
+        * wdogConfig->timeoutValue = 0xFFU;
+        * wdogConfig->interruptTimeValue = 0x04u;
+        */
+        WDOG_GetDefaultConfig(&wdog_config_t_param);
+        wdog_config_t_param.timeoutValue = timeout; /* Timeout value is 1 sec / 6.4 num, 5s means 32. */
+        WDOG_Init(WDOG1, &wdog_config_t_param);
+
+    return EOK;
+}
+
+static uint32 Imxrt1052WdgConfigure(void *drv, struct BusConfigureInfo *args)
+{
+    struct WdtDriver *wdt_drv = (struct WdtDriver *)drv;
+    struct WdtHardwareDevice *wdt_dev = (struct WdtHardwareDevice *)wdt_drv->driver.owner_bus->owner_haldev;
+    
+    uint16_t timeout;
+    
+    switch(args->configure_cmd)
+    {
+        case OPER_WDT_SET_TIMEOUT:
+            timeout = *(uint16_t *)(args->private_data);
+            if (timeout) {
+                Imxrt1052WdgInit(wdt_dev, timeout);
+            }
+            break;
+        case OPER_WDT_KEEPALIVE:
+            WDOG_Refresh(WDOG1);
+            break;
+        default:
+            return ERROR;
+    }
+    return EOK;
+}
+
+static const struct WdtDevDone dev_done =
+{
+    Imxrt1052WdgOpen,
+    Imxrt1052WdgClose,
+    NONE,
+    NONE,
+};
+
+/**
+ * @description: Feed watchdog task function
+ */
+static void FeedWatchdogTask(void)
+{
+    while (1)
+    {
+        /* keep watchdog alive in idle task */
+        struct BusConfigureInfo cfg;
+        cfg.configure_cmd = OPER_WDT_KEEPALIVE;
+        cfg.private_data = NONE;
+        BusDrvConfigure(wdt->owner_driver, &cfg);
+        MdelayKTask(500);
+    }
+}
+
+/**
+ * @description: Watchdog function
+ * @return success: EOK, failure: other
+ */
+int StartWatchdog(void)
+{
+    int ret = EOK;
+    uint16_t timeout = 32;    /* timeout time 5s*/
+
+    wdt = BusFind(WDT_BUS_NAME);
+    wdt->owner_driver = BusFindDriver(wdt, WDT_DRIVER_NAME);
+
+    /* set watchdog timeout time */
+    struct BusConfigureInfo cfg;
+    cfg.configure_cmd = OPER_WDT_SET_TIMEOUT;
+    cfg.private_data = &timeout;
+    ret = BusDrvConfigure(wdt->owner_driver, &cfg);
+    
+    int32 WdtTask = KTaskCreate("WdtTask", (void *)FeedWatchdogTask, NONE, 1024, 20); 
+	StartupKTask(WdtTask);
+
+    return EOK;
+}
+
+int Imxrt1052HwWdgInit(void)
+{
+    x_err_t ret = EOK;
+
+    static struct WdtBus watch_dog_timer_bus;
+    static struct WdtDriver watch_dog_timer_drv;
+    static struct WdtHardwareDevice watch_dog_timer_dev;
+
+    ret = WdtBusInit(&watch_dog_timer_bus, WDT_BUS_NAME);
+    if (ret != EOK) {
+        KPrintf("Watchdog bus init error %d\n", ret);
+        return ERROR;
+    }
+
+    watch_dog_timer_drv.configure = Imxrt1052WdgConfigure;
+    ret = WdtDriverInit(&watch_dog_timer_drv, WDT_DRIVER_NAME);
+    if (ret != EOK) {
+        KPrintf("Watchdog driver init error %d\n", ret);
+        return ERROR;
+    }
+
+    ret = WdtDriverAttachToBus(WDT_DRIVER_NAME, WDT_BUS_NAME);
+    if (ret != EOK) {
+        KPrintf("Watchdog driver attach error %d\n", ret);
+        return ERROR;
+    }
+
+    watch_dog_timer_dev.dev_done = &dev_done;
+
+    ret = WdtDeviceRegister(&watch_dog_timer_dev, WDT_DEVICE_NAME);
+    if (ret != EOK) {
+        KPrintf("Watchdog device register error %d\n", ret);
+        return ERROR;
+    }
+    ret = WdtDeviceAttachToBus(WDT_DEVICE_NAME, WDT_BUS_NAME);
+    if (ret != EOK) {
+        KPrintf("Watchdog device register error %d\n", ret);
+        return ERROR;
+    }
+
+    return ret;
+}
diff --git a/Ubiquitous/XiZi/board/xidatong/third_party_driver/wdt/fsl_wdog.c b/Ubiquitous/XiZi/board/xidatong/third_party_driver/wdt/fsl_wdog.c
new file mode 100644
index 000000000..9a3c7fc10
--- /dev/null
+++ b/Ubiquitous/XiZi/board/xidatong/third_party_driver/wdt/fsl_wdog.c
@@ -0,0 +1,206 @@
+/*
+ * Copyright (c) 2016, Freescale Semiconductor, Inc.
+ * Copyright 2016-2018 NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "fsl_wdog.h"
+
+/* Component ID definition, used by tools. */
+#ifndef FSL_COMPONENT_ID
+#define FSL_COMPONENT_ID "platform.drivers.wdog01"
+#endif
+
+/*******************************************************************************
+ * Variables
+ ******************************************************************************/
+static WDOG_Type *const s_wdogBases[] = WDOG_BASE_PTRS;
+#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
+/* Array of WDOG clock name. */
+static const clock_ip_name_t s_wdogClock[] = WDOG_CLOCKS;
+#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
+
+static const IRQn_Type s_wdogIRQ[] = WDOG_IRQS;
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+static uint32_t WDOG_GetInstance(WDOG_Type *base)
+{
+    uint32_t instance;
+
+    /* Find the instance index from base address mappings. */
+    for (instance = 0; instance < ARRAY_SIZE(s_wdogBases); instance++)
+    {
+        if (s_wdogBases[instance] == base)
+        {
+            break;
+        }
+    }
+
+    assert(instance < ARRAY_SIZE(s_wdogBases));
+
+    return instance;
+}
+
+/*!
+ * brief Initializes the WDOG configuration structure.
+ *
+ * This function initializes the WDOG configuration structure to default values. The default
+ * values are as follows.
+ * code
+ *   wdogConfig->enableWdog = true;
+ *   wdogConfig->workMode.enableWait = true;
+ *   wdogConfig->workMode.enableStop = false;
+ *   wdogConfig->workMode.enableDebug = false;
+ *   wdogConfig->enableInterrupt = false;
+ *   wdogConfig->enablePowerdown = false;
+ *   wdogConfig->resetExtension = flase;
+ *   wdogConfig->timeoutValue = 0xFFU;
+ *   wdogConfig->interruptTimeValue = 0x04u;
+ * endcode
+ *
+ * param config Pointer to the WDOG configuration structure.
+ * see wdog_config_t
+ */
+void WDOG_GetDefaultConfig(wdog_config_t *config)
+{
+    assert(config);
+
+    /* Initializes the configure structure to zero. */
+    memset(config, 0, sizeof(*config));
+
+    config->enableWdog             = true;
+    config->workMode.enableWait    = false;
+    config->workMode.enableStop    = false;
+    config->workMode.enableDebug   = false;
+    config->enableInterrupt        = false;
+    config->softwareResetExtension = false;
+    config->enablePowerDown        = false;
+    config->timeoutValue           = 0xffu;
+    config->interruptTimeValue     = 0x04u;
+    config->enableTimeOutAssert    = false;
+}
+
+/*!
+ * brief Initializes the WDOG.
+ *
+ * This function initializes the WDOG. When called, the WDOG runs according to the configuration.
+ *
+ * This is an example.
+ * code
+ *   wdog_config_t config;
+ *   WDOG_GetDefaultConfig(&config);
+ *   config.timeoutValue = 0xffU;
+ *   config->interruptTimeValue = 0x04u;
+ *   WDOG_Init(wdog_base,&config);
+ * endcode
+ *
+ * param base   WDOG peripheral base address
+ * param config The configuration of WDOG
+ */
+void WDOG_Init(WDOG_Type *base, const wdog_config_t *config)
+{
+    assert(config);
+
+    uint16_t value = 0u;
+
+    value = WDOG_WCR_WDE(config->enableWdog) | WDOG_WCR_WDW(config->workMode.enableWait) |
+            WDOG_WCR_WDZST(config->workMode.enableStop) | WDOG_WCR_WDBG(config->workMode.enableDebug) |
+            WDOG_WCR_SRE(config->softwareResetExtension) | WDOG_WCR_WT(config->timeoutValue) |
+            WDOG_WCR_WDT(config->enableTimeOutAssert) | WDOG_WCR_SRS_MASK | WDOG_WCR_WDA_MASK;
+
+#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
+    /* Set configuration */
+    CLOCK_EnableClock(s_wdogClock[WDOG_GetInstance(base)]);
+#endif
+
+    base->WICR = WDOG_WICR_WICT(config->interruptTimeValue) | WDOG_WICR_WIE(config->enableInterrupt);
+    base->WMCR = WDOG_WMCR_PDE(config->enablePowerDown);
+    base->WCR  = value;
+    if (config->enableInterrupt)
+    {
+        EnableIRQ(s_wdogIRQ[WDOG_GetInstance(base)]);
+    }
+}
+
+/*!
+ * brief Shuts down the WDOG.
+ *
+ * This function shuts down the WDOG.
+ * Watchdog Enable bit is a write one once only bit. It is not
+ * possible to clear this bit by a software write, once the bit is set.
+ * This bit(WDE) can be set/reset only in debug mode(exception).
+ */
+void WDOG_Deinit(WDOG_Type *base)
+{
+    if (base->WCR & WDOG_WCR_WDBG_MASK)
+    {
+        WDOG_Disable(base);
+    }
+}
+
+/*!
+ * brief Gets the WDOG all reset status flags.
+ *
+ * This function gets all reset status flags.
+ *
+ * code
+ * uint16_t status;
+ * status = WDOG_GetStatusFlags (wdog_base);
+ * endcode
+ * param base        WDOG peripheral base address
+ * return            State of the status flag: asserted (true) or not-asserted (false).see _wdog_status_flags
+ *                    - true: a related status flag has been set.
+ *                    - false: a related status flag is not set.
+ */
+uint16_t WDOG_GetStatusFlags(WDOG_Type *base)
+{
+    uint16_t status_flag = 0U;
+
+    status_flag |= (base->WCR & WDOG_WCR_WDE_MASK);
+    status_flag |= (base->WRSR & WDOG_WRSR_POR_MASK);
+    status_flag |= (base->WRSR & WDOG_WRSR_TOUT_MASK);
+    status_flag |= (base->WRSR & WDOG_WRSR_SFTW_MASK);
+    status_flag |= (base->WICR & WDOG_WICR_WTIS_MASK);
+
+    return status_flag;
+}
+
+/*!
+ * brief Clears the WDOG flag.
+ *
+ * This function clears the WDOG status flag.
+ *
+ * This is an example for clearing the interrupt flag.
+ * code
+ *   WDOG_ClearStatusFlags(wdog_base,KWDOG_InterruptFlag);
+ * endcode
+ * param base        WDOG peripheral base address
+ * param mask        The status flags to clear.
+ *                    The parameter could be any combination of the following values.
+ *                    kWDOG_TimeoutFlag
+ */
+void WDOG_ClearInterruptStatus(WDOG_Type *base, uint16_t mask)
+{
+    if (mask & kWDOG_InterruptFlag)
+    {
+        base->WICR |= WDOG_WICR_WTIS_MASK;
+    }
+}
+
+/*!
+ * brief Refreshes the WDOG timer.
+ *
+ * This function feeds the WDOG.
+ * This function should be called before the WDOG timer is in timeout. Otherwise, a reset is asserted.
+ *
+ * param base WDOG peripheral base address
+ */
+void WDOG_Refresh(WDOG_Type *base)
+{
+    base->WSR = WDOG_REFRESH_KEY & 0xFFFFU;
+    base->WSR = (WDOG_REFRESH_KEY >> 16U) & 0xFFFFU;
+}
diff --git a/Ubiquitous/XiZi/kernel/kernel_test/test_iwg.c b/Ubiquitous/XiZi/kernel/kernel_test/test_iwg.c
index e9121bb0e..ebd52cf6e 100644
--- a/Ubiquitous/XiZi/kernel/kernel_test/test_iwg.c
+++ b/Ubiquitous/XiZi/kernel/kernel_test/test_iwg.c
@@ -28,14 +28,17 @@ static BusType wdt;
  */
 static void FeedWatchdog(void)
 {
-    while (1)
+    int cnt = 0;
+    while (cnt < 20)
     {
         /* keep watchdog alive in idle task */
         struct BusConfigureInfo cfg;
         cfg.configure_cmd = OPER_WDT_KEEPALIVE;
         cfg.private_data = NONE;
         BusDrvConfigure(wdt->owner_driver, &cfg);
-        KPrintf("feed the dog!\n ");
+        KPrintf("feed the dog! cnt %u\n", cnt);
+        cnt++;
+        MdelayKTask(1000);
     }
 }
 
@@ -46,18 +49,17 @@ static void FeedWatchdog(void)
 int TestIwg(void)
 {
     x_err_t res = EOK;
-    uint32 timeout = 1000;    /* timeout time */
+    uint16 timeout = 1000;    /* timeout time */
 
-    wdt = BusFind(WDT_BUS_NAME_0);
-    wdt->owner_driver = BusFindDriver(wdt, WDT_DRIVER_NAME_0);
-    wdt->owner_haldev = BusFindDevice(wdt, WDT_0_DEVICE_NAME_0);
+    wdt = BusFind(WDT_BUS_NAME);
+    wdt->owner_driver = BusFindDriver(wdt, WDT_DRIVER_NAME);
+    wdt->owner_haldev = BusFindDevice(wdt, WDT_DEVICE_NAME);
 
     /* set watchdog timeout time */
     struct BusConfigureInfo cfg;
     cfg.configure_cmd = OPER_WDT_SET_TIMEOUT;
     cfg.private_data = &timeout;
     res = BusDrvConfigure(wdt->owner_driver, &cfg);
-    KPrintf("feed the dog!\n");
     
     int32 WdtTask = KTaskCreate("WdtTask", (void *)FeedWatchdog, NONE, 2048, 20); 
 	res = StartupKTask(WdtTask);
diff --git a/Ubiquitous/XiZi/kernel/thread/init.c b/Ubiquitous/XiZi/kernel/thread/init.c
index 00e255d26..583f9d7a5 100644
--- a/Ubiquitous/XiZi/kernel/thread/init.c
+++ b/Ubiquitous/XiZi/kernel/thread/init.c
@@ -31,6 +31,10 @@
 #include "connect_usb.h"
 #endif
 
+#ifdef BSP_USING_WDT
+#include "connect_wdt.h"
+#endif
+
 #ifdef KERNEL_USER_MAIN
 #ifndef MAIN_KTASK_STACK_SIZE
 #define MAIN_KTASK_STACK_SIZE     2048
@@ -242,6 +246,10 @@ extern int InitUserspace(void);
 	HwLockSpinlock(&AssignSpinLock);
 #endif
 
+#ifdef BSP_USING_WDT
+    StartWatchdog();
+#endif
+
     StartupOsAssign();
 	
     return 0;
diff --git a/Ubiquitous/XiZi/resources/include/bus.h b/Ubiquitous/XiZi/resources/include/bus.h
index 967d3a519..b9d0f4ad7 100644
--- a/Ubiquitous/XiZi/resources/include/bus.h
+++ b/Ubiquitous/XiZi/resources/include/bus.h
@@ -27,11 +27,11 @@
 extern "C" {
 #endif
 
-#define OPE_INT                  0x0000
+#define OPE_INT                 0x0000
 #define OPE_CFG                 0x0001
 
 #define OPER_WDT_SET_TIMEOUT    0x0002
-#define OPER_WDT_KEEPALIVE           0x0003
+#define OPER_WDT_KEEPALIVE      0x0003
 
 typedef struct Bus *BusType;
 typedef struct HardwareDev *HardwareDevType;