diff --git a/applications/connection_demo/zigbee_demo/zigbee_receive_demo.c b/applications/connection_demo/zigbee_demo/zigbee_receive_demo.c
index 74032013f..18ff257d4 100644
--- a/applications/connection_demo/zigbee_demo/zigbee_receive_demo.c
+++ b/applications/connection_demo/zigbee_demo/zigbee_receive_demo.c
@@ -15,7 +15,7 @@
 * @brief:   using zigbee to receive message
 * @version: 1.0
 * @author:  AIIT XUOS Lab
-* @date:    2020/4/25
+* @date:    2021/4/30
 *
 */
 #include <xs_adapter_zigbee.h>   
diff --git a/applications/connection_demo/zigbee_demo/zigbee_send_demo.c b/applications/connection_demo/zigbee_demo/zigbee_send_demo.c
index 2dc6d3e5f..7b021fb55 100644
--- a/applications/connection_demo/zigbee_demo/zigbee_send_demo.c
+++ b/applications/connection_demo/zigbee_demo/zigbee_send_demo.c
@@ -15,7 +15,7 @@
 * @brief:   using zigbee to send message
 * @version: 1.0
 * @author:  AIIT XUOS Lab
-* @date:    2020/4/25
+* @date:    2021/4/30
 *
 */
 #include <xs_adapter_zigbee.h>   
diff --git a/applications/tflite_mnist/digit.h b/applications/tflite_mnist/digit.h
index e95ea4e6b..052f4a580 100644
--- a/applications/tflite_mnist/digit.h
+++ b/applications/tflite_mnist/digit.h
@@ -9,6 +9,15 @@
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
+
+/**
+* @file:    digit.h
+* @brief:   store digits in this file
+* @version: 1.0
+* @author:  AIIT XUOS Lab
+* @date:    2021/4/30
+*
+*/
 const float mnist_digit[] = {
   0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00,
   0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00,
diff --git a/applications/tflite_mnist/mnistapp.cpp b/applications/tflite_mnist/mnistapp.cpp
index d6a67bbda..82e7e2ea7 100644
--- a/applications/tflite_mnist/mnistapp.cpp
+++ b/applications/tflite_mnist/mnistapp.cpp
@@ -9,6 +9,15 @@
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
+
+/**
+* @file:    mnistapp.cpp
+* @brief:   mnist function
+* @version: 1.0
+* @author:  AIIT XUOS Lab
+* @date:    2021/4/30
+*
+*/
 #include <xiuos.h>
 
 #include "tensorflow/lite/micro/all_ops_resolver.h"
diff --git a/applications/tflite_mnist/mnistmain.c b/applications/tflite_mnist/mnistmain.c
index ed9b2cfc4..8a131721c 100644
--- a/applications/tflite_mnist/mnistmain.c
+++ b/applications/tflite_mnist/mnistmain.c
@@ -9,6 +9,16 @@
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
+
+/**
+* @file:    mnistmain.c
+* @brief:   start mnist function
+* @version: 1.0
+* @author:  AIIT XUOS Lab
+* @date:    2021/4/30
+*
+*/
+
 #include <xiuos.h>
 
 void mnist_app(void);
diff --git a/applications/tflite_mnist/model.h b/applications/tflite_mnist/model.h
index be7732e31..20ddff64b 100644
--- a/applications/tflite_mnist/model.h
+++ b/applications/tflite_mnist/model.h
@@ -9,6 +9,15 @@
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
+
+/**
+* @file:    model.h
+* @brief:   store model weights in this file
+* @version: 1.0
+* @author:  AIIT XUOS Lab
+* @date:    2021/4/30
+*
+*/
 unsigned char mnist_model[] = {
   0x1c, 0x00, 0x00, 0x00, 0x54, 0x46, 0x4c, 0x33, 0x14, 0x00, 0x20, 0x00,
   0x04, 0x00, 0x08, 0x00, 0x0c, 0x00, 0x10, 0x00, 0x14, 0x00, 0x00, 0x00,
diff --git a/applications/tflite_mnist/tools/mnist-c-digit.py b/applications/tflite_mnist/tools/mnist-c-digit.py
old mode 100644
new mode 100755
index 93c525c75..22e942787
--- a/applications/tflite_mnist/tools/mnist-c-digit.py
+++ b/applications/tflite_mnist/tools/mnist-c-digit.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 # ==========================================================================================
 # Copyright (c) 2020 AIIT XUOS Lab
 # XiOS is licensed under Mulan PSL v2.
@@ -8,8 +9,14 @@
 # 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:    mnist-c-digit.py
+#  @brief:   print image digit at command line
+#  @version: 1.0
+#  @author:  AIIT XUOS Lab
+#  @date:    2021/4/30
 # ==========================================================================================
-#!/usr/bin/env python3
+
 
 import tensorflow as tf
 
diff --git a/applications/tflite_mnist/tools/mnist-c-model.py b/applications/tflite_mnist/tools/mnist-c-model.py
old mode 100644
new mode 100755
index 9b40ddbb1..c2df449e7
--- a/applications/tflite_mnist/tools/mnist-c-model.py
+++ b/applications/tflite_mnist/tools/mnist-c-model.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 # ==========================================================================================
 # Copyright (c) 2020 AIIT XUOS Lab
 # XiOS is licensed under Mulan PSL v2.
@@ -8,8 +9,14 @@
 # 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:    mnist-c-model.py
+#  @brief:   open file path and load model
+#  @version: 1.0
+#  @author:  AIIT XUOS Lab
+#  @date:    2021/4/30
 # ==========================================================================================
-#!/usr/bin/env python3
+
 
 #tflite_file_path = 'mnist-default-quan.tflite'
 tflite_file_path = 'mnist.tflite'
diff --git a/applications/tflite_mnist/tools/mnist-inference.py b/applications/tflite_mnist/tools/mnist-inference.py
old mode 100644
new mode 100755
index a71ddd7ad..7d6409642
--- a/applications/tflite_mnist/tools/mnist-inference.py
+++ b/applications/tflite_mnist/tools/mnist-inference.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 # ==========================================================================================
 # Copyright (c) 2020 AIIT XUOS Lab
 # XiOS is licensed under Mulan PSL v2.
@@ -8,8 +9,14 @@
 # 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:    mnist-inference.py
+#  @brief:   load data amd start model omferemce
+#  @version: 1.0
+#  @author:  AIIT XUOS Lab
+#  @date:    2021/4/30
 # ==========================================================================================
-#!/usr/bin/env python3
+
 
 import tensorflow as tf
 
diff --git a/applications/tflite_mnist/tools/mnist-train.py b/applications/tflite_mnist/tools/mnist-train.py
old mode 100644
new mode 100755
index 39815be27..02135bff7
--- a/applications/tflite_mnist/tools/mnist-train.py
+++ b/applications/tflite_mnist/tools/mnist-train.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 # ==========================================================================================
 # Copyright (c) 2020 AIIT XUOS Lab
 # XiOS is licensed under Mulan PSL v2.
@@ -8,8 +9,14 @@
 # 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:    mnist-train.py
+#  @brief:   model training
+#  @version: 1.0
+#  @author:  AIIT XUOS Lab
+#  @date:    2021/4/30
 # ==========================================================================================
-#!/usr/bin/env python3
+
 
 import os
 import tensorflow as tf
diff --git a/framework/connection/Adapter/include/xs_adapter_zigbee.h b/framework/connection/Adapter/include/xs_adapter_zigbee.h
index 8043d9caa..e802297cd 100644
--- a/framework/connection/Adapter/include/xs_adapter_zigbee.h
+++ b/framework/connection/Adapter/include/xs_adapter_zigbee.h
@@ -15,7 +15,7 @@
 * @brief:   head file
 * @version: 1.0
 * @author:  AIIT XUOS Lab
-* @date:    2020/4/25
+* @date:    2021/4/25
 *
 */
 #ifndef XS_ADAPTER_ZIGBEE_H
diff --git a/framework/connection/Adapter/zigbee/xs_adaper_zigbee_register.c b/framework/connection/Adapter/zigbee/xs_adaper_zigbee_register.c
index 336e34c5b..cdb8bf9cb 100644
--- a/framework/connection/Adapter/zigbee/xs_adaper_zigbee_register.c
+++ b/framework/connection/Adapter/zigbee/xs_adaper_zigbee_register.c
@@ -15,7 +15,7 @@
 * @brief:   register zigbee in initialization
 * @version: 1.0
 * @author:  AIIT XUOS Lab
-* @date:    2020/4/25
+* @date:    2021/4/30
 *
 */
 #include <xs_adapter_zigbee.h>
diff --git a/framework/connection/Adapter/zigbee/xs_adapter_zigbee.c b/framework/connection/Adapter/zigbee/xs_adapter_zigbee.c
index 147c9ca90..25ada96fe 100644
--- a/framework/connection/Adapter/zigbee/xs_adapter_zigbee.c
+++ b/framework/connection/Adapter/zigbee/xs_adapter_zigbee.c
@@ -15,7 +15,7 @@
 * @brief:   zigbee open close function
 * @version: 1.0
 * @author:  AIIT XUOS Lab
-* @date:    2020/4/25
+* @date:    2021/4/30
 *
 */