diff --git a/README_zh.md b/README_zh.md
index b40edb088e6c7b48e9db1745abbc9b50df91bf5c..21fa426ec40f2e30858c3aec4358ab9baed44068 100755
--- a/README_zh.md
+++ b/README_zh.md
@@ -64,8 +64,7 @@ device_soc_beken/
 ```
 	beken
  		> wifi_bk7235
- 		> xts_test_part1
-		> xts_test_part2
+ 		> xts_demo
 ```
 正常启动选wifi_bk7235,xts测试选择xts_test_part1和xts_test_part2
 
diff --git a/bk7235/liteos_m/bk_sdk_armino/components/lwip_intf_v2_1/lwip-2.1.2/BUILD.gn b/bk7235/liteos_m/bk_sdk_armino/components/lwip_intf_v2_1/lwip-2.1.2/BUILD.gn
new file mode 100755
index 0000000000000000000000000000000000000000..87e4cac90d630690779be1708fe88682aa2cc511
--- /dev/null
+++ b/bk7235/liteos_m/bk_sdk_armino/components/lwip_intf_v2_1/lwip-2.1.2/BUILD.gn
@@ -0,0 +1,44 @@
+# Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this list of
+#    conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice, this list
+#    of conditions and the following disclaimer in the documentation and/or other materials
+#    provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors may be used
+#    to endorse or promote products derived from this software without specific prior written
+#    permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import("//kernel/liteos_m/liteos.gni")
+import("$LITEOSTHIRDPARTY/lwip/lwip.gni")
+import("$LITEOSTOPDIR/components/net/lwip-2.1/lwip_porting.gni")
+
+module_switch = defined(LOSCFG_NET_LWIP_SACK)
+module_name = "lwip"
+kernel_module(module_name) {
+  sources = LWIP_PORTING_FILES + LWIPNOAPPSFILES - [ "$LWIPDIR/api/sockets.c" ]
+  defines = [ "LITEOS_LWIP=1" ]
+  include_dirs = [ "//commonlibrary/utils_lite/include" ]
+}
+
+config("public") {
+  defines = [ "_BSD_SOURCE=1" ]
+  include_dirs = [ "include" ] + LWIP_PORTING_INCLUDE_DIRS + LWIP_INCLUDE_DIRS
+}
diff --git a/bk7235/liteos_m/bk_sdk_armino/middleware/arch/riscv/os/freertos/cpu.c b/bk7235/liteos_m/bk_sdk_armino/middleware/arch/riscv/os/freertos/cpu.c
deleted file mode 100755
index f05748d435ed3d46cc2822a2ba92c49324b156ea..0000000000000000000000000000000000000000
--- a/bk7235/liteos_m/bk_sdk_armino/middleware/arch/riscv/os/freertos/cpu.c
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright 2020-2021 Beken
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "bk_arch.h"
-#include "bk_uart.h"
-#include <os/os.h>
-
-void rtos_shutdown(void)
-{
-	GLOBAL_INT_DECLARATION();
-
-	os_printf("shutdown...\n");
-
-	GLOBAL_INT_DISABLE();
-	while (1);
-	GLOBAL_INT_RESTORE();
-}