diff --git a/middleware/McuManager/src/McuDevice.cpp b/middleware/McuManager/src/McuDevice.cpp
index 02bd3e3a..25e9c10a 100644
--- a/middleware/McuManager/src/McuDevice.cpp
+++ b/middleware/McuManager/src/McuDevice.cpp
@@ -99,9 +99,9 @@ void McuDevice::DeviceRecvThread(void)
     }
     mThreadRuning = true;
     while (mThreadRuning) {
-        size_t recvLength =
+        ssize_t recvLength =
             IUartRecv(mUartDevice, keyHeadBuf + recvTotalLength, keyHeadLength - recvTotalLength, RECV_TIMEOUT_MS);
-        LogInfo("mcu recv length = %d\n", recvLength);
+        LogInfo("mcu recv length = %ld\n", recvLength);
         if (recvLength <= 0) { // recv failed or recv nothing
             continue;
         }
diff --git a/test/middleware/McuManager/CMakeLists.txt b/test/middleware/McuManager/CMakeLists.txt
index fb311cb5..431e6e46 100644
--- a/test/middleware/McuManager/CMakeLists.txt
+++ b/test/middleware/McuManager/CMakeLists.txt
@@ -11,7 +11,8 @@ include_directories(
     ${UTILS_SOURCE_PATH}/UartDevice/include
     ${MIDDLEWARE_SOURCE_PATH}/McuManager/include
     ${TEST_SOURCE_PATH}/utils/LinuxApiMock/include
-    ${TEST_SOURCE_PATH}/utils/UartDevice/tool/include/
+    ${TEST_SOURCE_PATH}/utils/UartDevice/tool/include
+    ${TEST_SOURCE_PATH}/utils/McuProtocol/tool/include
     ${EXTERNAL_SOURCE_PATH}/gtest/googletest-release-1.11.0/googletest/include
     ${EXTERNAL_SOURCE_PATH}/gtest/googletest-release-1.11.0/googlemock/include
 )
diff --git a/test/middleware/McuManager/tool/CMakeLists.txt b/test/middleware/McuManager/tool/CMakeLists.txt
index 2c5ed3bc..13bb586a 100644
--- a/test/middleware/McuManager/tool/CMakeLists.txt
+++ b/test/middleware/McuManager/tool/CMakeLists.txt
@@ -8,6 +8,7 @@ include_directories(
     ${UTILS_SOURCE_PATH}/StatusCode/include
     ${UTILS_SOURCE_PATH}/Log/include
     ${TEST_SOURCE_PATH}/utils/LinuxApiMock/include
+    ${TEST_SOURCE_PATH}/utils/McuProtocol/tool/include
 )
 # link_directories(
 #     ${EXTERNAL_SOURCE_PATH}/libconfig/libconfig-1.7.3/lib/.libs
@@ -19,7 +20,7 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 aux_source_directory(./src TEST_TOOL_SRC_FILES)
 set(TEST_TOOL_TARGET McuManagerTestTool)
 add_library(${TEST_TOOL_TARGET} STATIC ${TEST_TOOL_SRC_FILES})
-target_link_libraries(${TEST_TOOL_TARGET} UartDeviceTestTool LinuxApiMock Log)
+target_link_libraries(${TEST_TOOL_TARGET} McuProtocolTestTool UartDeviceTestTool LinuxApiMock Log)
 
 if ("${CLANG_TIDY_SUPPORT}" MATCHES "true")
 add_custom_target(
diff --git a/test/middleware/McuManager/tool/include/McuManagerTestTool.h b/test/middleware/McuManager/tool/include/McuManagerTestTool.h
index ce2eaebd..13718685 100644
--- a/test/middleware/McuManager/tool/include/McuManagerTestTool.h
+++ b/test/middleware/McuManager/tool/include/McuManagerTestTool.h
@@ -15,8 +15,8 @@
 #ifndef MCU_MANAGER_TEST_TOOL_H
 #define MCU_MANAGER_TEST_TOOL_H
 #include "LinuxApiMock.h"
-#include "UartDeviceTestTool.h"
-class McuManagerTestTool : public UartDeviceTestTool
+#include "McuProtocolTestTool.h"
+class McuManagerTestTool : virtual public McuProtocolTestTool
 {
 public:
     McuManagerTestTool() = default;
diff --git a/test/middleware/McuManager/tool/src/McuManagerTestTool.cpp b/test/middleware/McuManager/tool/src/McuManagerTestTool.cpp
index bd5f565b..a97fb43d 100644
--- a/test/middleware/McuManager/tool/src/McuManagerTestTool.cpp
+++ b/test/middleware/McuManager/tool/src/McuManagerTestTool.cpp
@@ -26,10 +26,11 @@ static UartInfo gUartDevice = {
 void McuManagerTestTool::Init(std::shared_ptr<LinuxTest> &mock)
 {
     LogInfo("McuManagerTestTool::Init\n");
-    RegisterUartDevice(mock, gUartDevice);
+    UartDeviceTestTool::RegisterUartDevice(mock, gUartDevice);
+    McuProtocolTestTool::Init(mock, gUartDevice);
 }
 void McuManagerTestTool::UnInit(void)
 {
     //
-    UnregisterUartDevice(gUartDevice);
+    UartDeviceTestTool::UnregisterUartDevice(gUartDevice);
 }
\ No newline at end of file
diff --git a/test/utils/McuProtocol/tool/CMakeLists.txt b/test/utils/McuProtocol/tool/CMakeLists.txt
index a1382016..92c93cd2 100644
--- a/test/utils/McuProtocol/tool/CMakeLists.txt
+++ b/test/utils/McuProtocol/tool/CMakeLists.txt
@@ -7,7 +7,11 @@ include_directories(
     ./include
     ${UTILS_SOURCE_PATH}/StatusCode/include
     ${UTILS_SOURCE_PATH}/Log/include
+    ${UTILS_SOURCE_PATH}/UartDevice/include
     ${TEST_SOURCE_PATH}/utils/LinuxApiMock/include
+    ${TEST_SOURCE_PATH}/utils/UartDevice/tool/include
+    ${EXTERNAL_SOURCE_PATH}/gtest/googletest-release-1.11.0/googletest/include
+    ${EXTERNAL_SOURCE_PATH}/gtest/googletest-release-1.11.0/googlemock/include
 )
 # link_directories(
 #     ${EXTERNAL_SOURCE_PATH}/libconfig/libconfig-1.7.3/lib/.libs
@@ -19,7 +23,7 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 aux_source_directory(./src TEST_TOOL_SRC_FILES)
 set(TEST_TOOL_TARGET McuProtocolTestTool)
 add_library(${TEST_TOOL_TARGET} STATIC ${TEST_TOOL_SRC_FILES})
-target_link_libraries(${TEST_TOOL_TARGET} LinuxApiMock Log)
+target_link_libraries(${TEST_TOOL_TARGET} UartDeviceTestTool Log)
 
 if ("${CLANG_TIDY_SUPPORT}" MATCHES "true")
 add_custom_target(
diff --git a/test/utils/McuProtocol/tool/include/McuProtocolTestTool.h b/test/utils/McuProtocol/tool/include/McuProtocolTestTool.h
index f297c002..a2505411 100644
--- a/test/utils/McuProtocol/tool/include/McuProtocolTestTool.h
+++ b/test/utils/McuProtocol/tool/include/McuProtocolTestTool.h
@@ -11,4 +11,20 @@
  * 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.
- */
\ No newline at end of file
+ */
+#ifndef MCU_PROTOCOL_TEST_TOOL_H
+#define MCU_PROTOCOL_TEST_TOOL_H
+#include "LinuxApiMock.h"
+#include "UartDeviceTestTool.h"
+class McuProtocolTestTool : virtual public UartDeviceTestTool
+{
+public:
+    McuProtocolTestTool() = default;
+    virtual ~McuProtocolTestTool() = default;
+    void Init(std::shared_ptr<LinuxTest> &mock, const UartInfo &uart);
+    void UnInit(void);
+
+private:
+    static void PrintHexadecimalData(const void *buf, const size_t &bufLength);
+};
+#endif
\ No newline at end of file
diff --git a/test/utils/McuProtocol/tool/src/McuProtocolTestTool.cpp b/test/utils/McuProtocol/tool/src/McuProtocolTestTool.cpp
index f297c002..8e951b5f 100644
--- a/test/utils/McuProtocol/tool/src/McuProtocolTestTool.cpp
+++ b/test/utils/McuProtocol/tool/src/McuProtocolTestTool.cpp
@@ -11,4 +11,64 @@
  * 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.
- */
\ No newline at end of file
+ */
+#include "McuProtocolTestTool.h"
+#include "ILog.h"
+#include <string.h>
+#include <thread>
+constexpr size_t PROTOCOL_DATA_KEY_HEAD_LENGTH = 10;
+const unsigned char ASK_IPC_MISSION[] = {0xFA, 0xC1, 0x00, 0x00, 0x00, 0x00, 0x81, 0x01, 0x00, 0x0C, 0x3D, 0x68};
+const unsigned char REPLY_IPC_MISSION[] = {
+    0xFA, 0xC1, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x0D, 0x00, 0x3D, 0x68};
+void McuProtocolTestTool::Init(std::shared_ptr<LinuxTest> &mock, const UartInfo &uart)
+{
+    int uartFd = GetDeviceMockFd(uart);
+    static size_t WRITE_COUNT = -1;
+    auto api_write = [=, &mock](int fd, const void *buf, size_t count) {
+        McuProtocolTestTool::PrintHexadecimalData(buf, count);
+        if (sizeof(ASK_IPC_MISSION) == count && memcmp(ASK_IPC_MISSION, buf, count) == 0) {
+            LogInfo("Set REPLY_IPC_MISSION\n");
+            auto selectReadable =
+                [=, &mock](int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout) {
+                    FD_ZERO(readfds);
+                    FD_SET(uartFd, readfds);
+                };
+            auto selectTimeOut =
+                [=, &mock](int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout) {
+                    long long timeMs = timeout->tv_sec * 1000 + timeout->tv_usec / 1000;
+                    std::this_thread::sleep_for(std::chrono::milliseconds(timeMs));
+                };
+            EXPECT_CALL(*mock.get(), fx_select(uartFd + 1, _, _, _, _))
+                .WillOnce(DoAll(WithArgs<0, 1, 2, 3, 4>(Invoke(selectReadable)), Return(1)))
+                .WillOnce(DoAll(WithArgs<0, 1, 2, 3, 4>(Invoke(selectReadable)), Return(1)))
+                .WillRepeatedly(DoAll(WithArgs<0, 1, 2, 3, 4>(Invoke(selectTimeOut)), Return(MOCK_SELECT_TIME_OUT)));
+            constexpr int LEFT_DATA_LENGTH = sizeof(REPLY_IPC_MISSION) - PROTOCOL_DATA_KEY_HEAD_LENGTH;
+            auto apiReadKeyHead = [=](int fd, void *buf, size_t count) {
+                LogInfo("apiReadKeyHead count = %d\n", count);
+                memcpy(buf, REPLY_IPC_MISSION, PROTOCOL_DATA_KEY_HEAD_LENGTH);
+            };
+            auto apiReadLeftData = [=](int fd, void *buf, size_t count) {
+                memcpy(buf, REPLY_IPC_MISSION + PROTOCOL_DATA_KEY_HEAD_LENGTH, LEFT_DATA_LENGTH);
+            };
+            EXPECT_CALL(*mock.get(), fx_read(uartFd, _, _))
+                .WillOnce(DoAll(WithArgs<0, 1, 2>(Invoke(apiReadKeyHead)), Return(PROTOCOL_DATA_KEY_HEAD_LENGTH)))
+                .WillOnce(DoAll(WithArgs<0, 1, 2>(Invoke(apiReadLeftData)), Return(LEFT_DATA_LENGTH)))
+                .WillRepeatedly(DoAll(Return(UART_DEVICE_READ_NOTHING)));
+        }
+    };
+    EXPECT_CALL(*mock.get(), fx_write(uartFd, _, _))
+        .WillRepeatedly(
+            DoAll(SaveArg<2>(&WRITE_COUNT), WithArgs<0, 1, 2>(Invoke(api_write)), ReturnPointee(&WRITE_COUNT)));
+}
+void McuProtocolTestTool::UnInit(void)
+{
+    //
+}
+void McuProtocolTestTool::PrintHexadecimalData(const void *buf, const size_t &bufLength)
+{
+    printf("write buf = { 0x%02X", *(unsigned char *)buf);
+    for (size_t i = 1; i < bufLength; i++) {
+        printf(", 0x%02X", *((unsigned char *)buf + i));
+    }
+    printf(" }\n");
+}
\ No newline at end of file
diff --git a/test/utils/UartDevice/tool/include/UartDeviceTestTool.h b/test/utils/UartDevice/tool/include/UartDeviceTestTool.h
index 1a04c827..6a8523d0 100644
--- a/test/utils/UartDevice/tool/include/UartDeviceTestTool.h
+++ b/test/utils/UartDevice/tool/include/UartDeviceTestTool.h
@@ -17,6 +17,7 @@
 #include "LinuxApiMock.h"
 #include "UartDevice.h"
 #include <map>
+constexpr int UART_DEVICE_READ_NOTHING = 0;
 class UartDeviceTestTool
 {
 public:
@@ -27,8 +28,16 @@ public:
      *
      * @param mock
      * @param uart
+     * @return int Return a virtual handle, and the simulated test code uses this handle to bind the device.
      */
-    void RegisterUartDevice(std::shared_ptr<LinuxTest> &mock, const UartInfo &uart);
+    int RegisterUartDevice(std::shared_ptr<LinuxTest> &mock, const UartInfo &uart);
+    /**
+     * @brief Get the Device Mock Fd object
+     *
+     * @param uart
+     * @return int fd of uart device.
+     */
+    int GetDeviceMockFd(const UartInfo &uart);
     /**
      * @brief
      *
@@ -37,19 +46,19 @@ public:
     void UnregisterUartDevice(const UartInfo &uart);
     /**
      * @brief Set the Send Api object
-     *
+     * Set the length of a successful send.
      * @param mock
      * @param uart
-     * @param length
+     * @param length The length of a successful send.
      */
     void SetSendApiOnce(std::shared_ptr<LinuxTest> &mock, const UartInfo &uart, const ssize_t &length);
     /**
      * @brief Set the Recv Api Once object
-     *
+     * Set the data received at once.
      * @param mock
      * @param uart
-     * @param recvBuff
-     * @param length
+     * @param recvBuff The data that will be received.
+     * @param length The length of data that will be received.
      */
     void SetRecvApiOnce(std::shared_ptr<LinuxTest> &mock, const UartInfo &uart, void *recvBuff, const ssize_t &length);
 
diff --git a/test/utils/UartDevice/tool/src/UartDeviceTestTool.cpp b/test/utils/UartDevice/tool/src/UartDeviceTestTool.cpp
index b827d318..d22e3b5f 100644
--- a/test/utils/UartDevice/tool/src/UartDeviceTestTool.cpp
+++ b/test/utils/UartDevice/tool/src/UartDeviceTestTool.cpp
@@ -16,11 +16,12 @@
 #include "ILog.h"
 #include <thread>
 static size_t WRITE_COUNT = -1;
-void UartDeviceTestTool::RegisterUartDevice(std::shared_ptr<LinuxTest> &mock, const UartInfo &uart)
+constexpr int INVALID_FD = -1;
+int UartDeviceTestTool::RegisterUartDevice(std::shared_ptr<LinuxTest> &mock, const UartInfo &uart)
 {
     if (nullptr == uart.mDevice) {
         LogError("Parament error, nullptr == uartInfo.mDevice\n");
-        return;
+        return INVALID_FD;
     }
     constexpr int TCGETATTR_SUCCEED = 0;
     constexpr int TCSETATTR_SUCCEED = 0;
@@ -38,9 +39,19 @@ void UartDeviceTestTool::RegisterUartDevice(std::shared_ptr<LinuxTest> &mock, co
         };
     EXPECT_CALL(*mock.get(), fx_select(uartFd + 1, _, _, _, _))
         .WillRepeatedly(DoAll(WithArgs<0, 1, 2, 3, 4>(Invoke(selectTimeOut)), Return(MOCK_SELECT_TIME_OUT)));
-    constexpr int READ_NOTHING = 0;
-    EXPECT_CALL(*mock.get(), fx_read(uartFd, _, _)).WillRepeatedly(DoAll(Return(READ_NOTHING)));
+    EXPECT_CALL(*mock.get(), fx_read(uartFd, _, _)).WillRepeatedly(DoAll(Return(UART_DEVICE_READ_NOTHING)));
     mDeviceMap[uart.mDevice] = uartFd;
+    return uartFd;
+}
+int UartDeviceTestTool::GetDeviceMockFd(const UartInfo &uart)
+{
+    std::map<const char *, int>::iterator iter;
+    iter = mDeviceMap.find(uart.mDevice);
+    if (iter == mDeviceMap.end()) {
+        LogError("Can't found the uart device[%s].\n", uart.mDevice);
+        return INVALID_FD;
+    }
+    return mDeviceMap[uart.mDevice];
 }
 void UartDeviceTestTool::UnregisterUartDevice(const UartInfo &uart)
 {
@@ -89,8 +100,7 @@ void UartDeviceTestTool::SetRecvApiOnce(std::shared_ptr<LinuxTest> &mock, const
         .WillOnce(DoAll(WithArgs<0, 1, 2, 3, 4>(Invoke(selectSucceed)), Return(SELECT_READABLE)))
         .WillRepeatedly(DoAll(WithArgs<0, 1, 2, 3, 4>(Invoke(selectTimeOut)), Return(MOCK_SELECT_TIME_OUT)));
     auto readBuf = [=, &mock](int fd, void *buf, size_t count) { memcpy(buf, recvBuff, length); };
-    constexpr int READ_NOTHING = 0;
     EXPECT_CALL(*mock.get(), fx_read(uartFd, _, _))
         .WillOnce(DoAll(WithArgs<0, 1, 2>(Invoke(readBuf)), Return(length)))
-        .WillRepeatedly(DoAll(Return(READ_NOTHING)));
+        .WillRepeatedly(DoAll(Return(UART_DEVICE_READ_NOTHING)));
 }
\ No newline at end of file
diff --git a/utils/McuProtocol/src/LittleEndianHandle.cpp b/utils/McuProtocol/src/LittleEndianHandle.cpp
new file mode 100644
index 00000000..8da8e5de
--- /dev/null
+++ b/utils/McuProtocol/src/LittleEndianHandle.cpp
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2023 Fancy Code.
+ * 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 "LittleEndianHandle.h"
+#include "ILog.h"
+#include <netinet/in.h>
+#include <string.h>
+LittleEndianHandle::LittleEndianHandle(const std::shared_ptr<VProtocolParam> &param) : ProtocolHandle(param)
+{
+    //
+}
+void LittleEndianHandle::BigEndianConversion(ProtocolPacket &packet)
+{
+    // LogInfo("packet.mHead = 0x%02x\n", packet.mHead);
+    // LogInfo("packet.mCommand = 0x%02x\n", packet.mCommand);
+    // LogInfo("packet.mLength = %d\n", packet.mLength);
+    // LogInfo("packet.mCheckCode = 0x%02x\n", packet.mCheckCode);
+    // LogInfo("packet.mSerialNumber = %d\n", packet.mSerialNumber);
+    // ProtocolPacket packetBigEndian;
+    packet.mHead = htons(packet.mHead);
+    packet.mCommand = htons(packet.mCommand);
+    packet.mLength = htons(packet.mLength);
+    packet.mCheckCode = htons(packet.mCheckCode);
+    packet.mSerialNumber = htonl(packet.mSerialNumber);
+    // memcpy(&packet, &packetBigEndian, sizeof(ProtocolPacket));
+}
\ No newline at end of file
diff --git a/utils/McuProtocol/src/LittleEndianHandle.h b/utils/McuProtocol/src/LittleEndianHandle.h
new file mode 100644
index 00000000..bf0c768d
--- /dev/null
+++ b/utils/McuProtocol/src/LittleEndianHandle.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2023 Fancy Code.
+ * 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.
+ */
+#ifndef LITTLE_ENDIAN_HANDLE_H
+#define LITTLE_ENDIAN_HANDLE_H
+#include "ProtocolHandle.h"
+class LittleEndianHandle : public ProtocolHandle
+{
+public:
+    LittleEndianHandle(const std::shared_ptr<VProtocolParam> &param);
+    virtual ~LittleEndianHandle() = default;
+
+private:
+    void BigEndianConversion(ProtocolPacket &packet) override;
+};
+#endif
\ No newline at end of file
diff --git a/utils/McuProtocol/src/McuProtocolMakePtr.cpp b/utils/McuProtocol/src/McuProtocolMakePtr.cpp
new file mode 100644
index 00000000..59a3e13b
--- /dev/null
+++ b/utils/McuProtocol/src/McuProtocolMakePtr.cpp
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2023 Fancy Code.
+ * 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 "McuProtocolMakePtr.h"
+#include "ILog.h"
+#include "LittleEndianHandle.h"
+#include <netinet/in.h>
+std::shared_ptr<McuProtocolMakePtr> &McuProtocolMakePtr::GetInstance(std::shared_ptr<McuProtocolMakePtr> *impl)
+{
+    static auto instance = std::make_shared<McuProtocolMakePtr>();
+    if (impl) {
+        instance = *impl;
+    }
+    return instance;
+}
+McuProtocolMakePtr::McuProtocolMakePtr() { mByteOrder = 0x00; }
+const StatusCode McuProtocolMakePtr::CreateProtocolHandle(std::shared_ptr<ProtocolHandle> &impl,
+                                                          const std::shared_ptr<VProtocolParam> &param)
+{
+    std::shared_ptr<ProtocolHandle> tmp;
+    char byteOrder = ProtocolHandle::GetByteOrder();
+    if (ORDER_BIG_ENDIAN == byteOrder) {
+        tmp = std::make_shared<ProtocolHandle>(param);
+    }
+    else {
+        tmp = std::make_shared<LittleEndianHandle>(param);
+    }
+    impl = tmp;
+    return CreateStatusCode(STATUS_CODE_OK);
+}
\ No newline at end of file
diff --git a/utils/McuProtocol/src/McuProtocolMakePtr.h b/utils/McuProtocol/src/McuProtocolMakePtr.h
new file mode 100644
index 00000000..d130f321
--- /dev/null
+++ b/utils/McuProtocol/src/McuProtocolMakePtr.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2023 Fancy Code.
+ * 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.
+ */
+#ifndef MCU_PROTOCOL_MAKE_PTR_H
+#define MCU_PROTOCOL_MAKE_PTR_H
+#include "ProtocolHandle.h"
+#include "StatusCode.h"
+#include <memory>
+class McuProtocolMakePtr
+{
+public:
+    McuProtocolMakePtr();
+    virtual ~McuProtocolMakePtr() = default;
+    static std::shared_ptr<McuProtocolMakePtr> &GetInstance(std::shared_ptr<McuProtocolMakePtr> *impl = nullptr);
+    virtual const StatusCode CreateProtocolHandle(std::shared_ptr<ProtocolHandle> &impl,
+                                                  const std::shared_ptr<VProtocolParam> &param);
+
+private:
+    char mByteOrder;
+};
+#endif // !MCU_PROTOCOL_MAKE_PTR_H
\ No newline at end of file
diff --git a/utils/McuProtocol/src/ProtocolHandle.cpp b/utils/McuProtocol/src/ProtocolHandle.cpp
index 876e772a..9a1604be 100644
--- a/utils/McuProtocol/src/ProtocolHandle.cpp
+++ b/utils/McuProtocol/src/ProtocolHandle.cpp
@@ -14,22 +14,13 @@
  */
 #include "ProtocolHandle.h"
 #include "ILog.h"
+#include "McuProtocolMakePtr.h"
 #include "ModBusCRC16.h"
+#include <netinet/in.h>
 #include <string.h>
 unsigned int ProtocolHandle::mSerialNumber = 0;
 constexpr unsigned short PROTOCOL_HEAD = 0xFAC1;
 constexpr size_t KEY_HEAD_LENGTH = sizeof(short) + sizeof(unsigned int) + sizeof(short) + sizeof(short);
-#pragma pack(1)
-typedef struct protocol_packet
-{
-    short mHead;
-    unsigned int mSerialNumber;
-    short mCommand;
-    short mLength;
-    char *mData;
-    short mCheckCode;
-} ProtocolPacket;
-#pragma pack()
 ProtocolHandle::ProtocolHandle(const std::shared_ptr<VProtocolParam> &param) : mParam(param)
 {
     mProtocolData = nullptr;
@@ -71,13 +62,15 @@ void ProtocolHandle::MakeAskIpcMissionPacket(const std::shared_ptr<VProtocolPara
     packet.mCheckCode = Calculate_Check_Sum(mProtocolData, dataLength - sizeof(short));
     packet.mSerialNumber = mSerialNumber;
     mSerialNumber++;
+    BigEndianConversion(packet);
     memcpy(mProtocolData, &packet, KEY_HEAD_LENGTH);
     memcpy(mProtocolData + KEY_HEAD_LENGTH, &packet.mCheckCode, sizeof(short));
     mProtocolDataLength = dataLength;
 }
 std::shared_ptr<ProtocolHandle> ProtocolHandle::CreateProtocolData(const std::shared_ptr<VProtocolParam> &param)
 {
-    std::shared_ptr<ProtocolHandle> handle = std::make_shared<ProtocolHandle>(param);
+    std::shared_ptr<ProtocolHandle> handle;
+    McuProtocolMakePtr::GetInstance()->CreateProtocolHandle(handle, param);
     handle->MakeProtocolPacket(param);
     return handle;
 }
@@ -100,4 +93,22 @@ StatusCode ProtocolHandle::GetDataLength(const void *keyHead, const size_t &head
     }
     dataLength = packet.mLength;
     return CreateStatusCode(STATUS_CODE_OK);
+}
+char ProtocolHandle::GetByteOrder(void)
+{
+    static char byteOrder = 0x00;
+    if (0x00 != byteOrder) {
+        return byteOrder;
+    }
+    unsigned int value = 0x12345678;
+    unsigned int networkOrder = htonl(value);
+    if (value == networkOrder) {
+        LogInfo("Big Endian.\n");
+        byteOrder = ORDER_BIG_ENDIAN;
+    }
+    else {
+        LogInfo("Little Endian.\n");
+        byteOrder = ORDER_LITTLE_ENDIAN;
+    }
+    return byteOrder;
 }
\ No newline at end of file
diff --git a/utils/McuProtocol/src/ProtocolHandle.h b/utils/McuProtocol/src/ProtocolHandle.h
index 9f89db4d..b87c1a1f 100644
--- a/utils/McuProtocol/src/ProtocolHandle.h
+++ b/utils/McuProtocol/src/ProtocolHandle.h
@@ -18,6 +18,19 @@
 #include <functional>
 #include <map>
 #include <memory>
+constexpr char ORDER_BIG_ENDIAN = 0x01;
+constexpr char ORDER_LITTLE_ENDIAN = 0x02;
+#pragma pack(1)
+typedef struct protocol_packet
+{
+    short mHead;
+    unsigned int mSerialNumber;
+    short mCommand;
+    short mLength;
+    char *mData;
+    short mCheckCode;
+} ProtocolPacket;
+#pragma pack()
 enum PROTOCOL_COMMAND
 {
     ASK_IPC_MISSION = 0x8101,
@@ -60,6 +73,9 @@ private:
     void MakeProtocolPacket(const std::shared_ptr<VProtocolParam> &param);
     void MakeAskIpcMissionPacket(const std::shared_ptr<VProtocolParam> &param);
 
+private:
+    virtual void BigEndianConversion(ProtocolPacket &packet) {}
+
 private:
     std::shared_ptr<VProtocolParam> mParam;
     std::map<PROTOCOL_COMMAND, MakePacketFunc> mMakePacketFunc;
@@ -82,5 +98,6 @@ public:
     static void ProtocolAnalysis(const void *data, const size_t &length);
     static size_t GetKeyHeadLength(void);
     static StatusCode GetDataLength(const void *keyHead, const size_t &headLength, size_t &dataLength);
+    static char GetByteOrder(void);
 };
 #endif
\ No newline at end of file
diff --git a/utils/UartDevice/include/UartDevice.h b/utils/UartDevice/include/UartDevice.h
index 09a4a28f..15e78173 100644
--- a/utils/UartDevice/include/UartDevice.h
+++ b/utils/UartDevice/include/UartDevice.h
@@ -16,6 +16,7 @@
 #define UARTD_EVICE_H
 #include "StatusCode.h"
 #include <cstddef>
+#include <unistd.h>
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -48,9 +49,9 @@ const StatusCode IUartOpen(void *object);
  * @param object Serial port object pointer.
  * @param buff The data to be sent.
  * @param buffLength The length of data to be sent.
- * @return const size_t
+ * @return const ssize_t
  */
-const size_t IUartSend(void *object, const void *buff, const size_t buffLength);
+const ssize_t IUartSend(void *object, const void *buff, const size_t buffLength);
 /**
  * @brief Use a serial port to receive data.
  *
@@ -58,9 +59,9 @@ const size_t IUartSend(void *object, const void *buff, const size_t buffLength);
  * @param buff The cache area for receiving data.
  * @param buffLength The size of the cache area for receiving data.
  * @param timeoutMs The timeout time in milliseconds.
- * @return const size_t
+ * @return const ssize_t
  */
-const size_t IUartRecv(void *object, void *buff, const size_t buffLength, const unsigned int timeoutMs);
+const ssize_t IUartRecv(void *object, void *buff, const size_t buffLength, const unsigned int timeoutMs);
 /**
  * @brief Clear the serial port cache data.
  *
diff --git a/utils/UartDevice/src/UartDevice.cpp b/utils/UartDevice/src/UartDevice.cpp
index ba56909e..16236f3b 100644
--- a/utils/UartDevice/src/UartDevice.cpp
+++ b/utils/UartDevice/src/UartDevice.cpp
@@ -29,7 +29,7 @@ const StatusCode IUartOpen(void *object)
     }
     return ((UartDevice *)object)->mOpen((UartDevice *)object);
 }
-const size_t IUartSend(void *object, const void *buff, const size_t buffLength)
+const ssize_t IUartSend(void *object, const void *buff, const size_t buffLength)
 {
     if (nullptr == object) {
         LogError("nullptr object!\n");
@@ -41,7 +41,7 @@ const size_t IUartSend(void *object, const void *buff, const size_t buffLength)
     }
     return ((UartDevice *)object)->mSend((UartDevice *)object, buff, buffLength);
 }
-const size_t IUartRecv(void *object, void *buff, const size_t buffLength, const unsigned int timeoutMs)
+const ssize_t IUartRecv(void *object, void *buff, const size_t buffLength, const unsigned int timeoutMs)
 {
     if (nullptr == object) {
         LogError("nullptr object!\n");
diff --git a/utils/UartDevice/src/UartDeviceImpl.cpp b/utils/UartDevice/src/UartDeviceImpl.cpp
index 79a06319..08940b6a 100644
--- a/utils/UartDevice/src/UartDeviceImpl.cpp
+++ b/utils/UartDevice/src/UartDeviceImpl.cpp
@@ -39,10 +39,10 @@ const StatusCode UartDeviceImpl::UartOpen(void)
     return SetConfig();
 }
 
-const size_t UartDeviceImpl::UartSend(const void *buff, const size_t &buffLength)
+const ssize_t UartDeviceImpl::UartSend(const void *buff, const size_t &buffLength)
 {
-    constexpr int SEND_FAILED = -1;
-    size_t writeLength = 0;
+    constexpr ssize_t SEND_FAILED = -1;
+    ssize_t writeLength = 0;
     if (nullptr == buff) {
         LogError("data buff is nullptr.\n");
         return SEND_FAILED;
@@ -62,11 +62,11 @@ const size_t UartDeviceImpl::UartSend(const void *buff, const size_t &buffLength
     tcflush(mFd, TCOFLUSH);
     return writeTotal;
 }
-const size_t UartDeviceImpl::UartRecv(void *buff, const size_t &buffLength, const unsigned int &timeOutMs,
-                                      const unsigned int delayReadMs)
+const ssize_t UartDeviceImpl::UartRecv(void *buff, const size_t &buffLength, const unsigned int &timeOutMs,
+                                       const unsigned int delayReadMs)
 {
-    constexpr int RECV_FAILED = -1;
-    int readLength = 0;
+    constexpr size_t RECV_FAILED = -1;
+    ssize_t readLength = 0;
     int fs_sel = -1;
     fd_set fs_read;
     struct timeval time;
@@ -230,12 +230,12 @@ static const StatusCode UartOpen(UartDevice *object)
     UartDeviceImpl_S *impl = UartDeviceImplConvert(object);
     return impl->mUartImpl->UartOpen();
 }
-static const size_t UartSend(UartDevice *object, const void *buff, const size_t buffLength)
+static const ssize_t UartSend(UartDevice *object, const void *buff, const size_t buffLength)
 {
     UartDeviceImpl_S *impl = UartDeviceImplConvert(object);
     return impl->mUartImpl->UartSend(buff, buffLength);
 }
-static const size_t UartRecv(UartDevice *object, void *buff, const size_t buffLength, const unsigned int timeoutMs)
+static const ssize_t UartRecv(UartDevice *object, void *buff, const size_t buffLength, const unsigned int timeoutMs)
 {
     UartDeviceImpl_S *impl = UartDeviceImplConvert(object);
     constexpr int READ_NOT_DELAY = 0;
diff --git a/utils/UartDevice/src/UartDeviceImpl.h b/utils/UartDevice/src/UartDeviceImpl.h
index ac801144..e37e15f6 100644
--- a/utils/UartDevice/src/UartDeviceImpl.h
+++ b/utils/UartDevice/src/UartDeviceImpl.h
@@ -29,9 +29,9 @@ public:
     UartDeviceImpl(const UartInfo &uatrInfo);
     virtual ~UartDeviceImpl() = default;
     const StatusCode UartOpen(void);
-    const size_t UartSend(const void *buff, const size_t &buffLength);
-    const size_t UartRecv(void *buff, const size_t &buffLength, const unsigned int &timeOutMs = 0,
-                          const unsigned int delayReadMs = 0);
+    const ssize_t UartSend(const void *buff, const size_t &buffLength);
+    const ssize_t UartRecv(void *buff, const size_t &buffLength, const unsigned int &timeOutMs = 0,
+                           const unsigned int delayReadMs = 0);
     void UartTcflush(void);
 
 private:
@@ -45,8 +45,8 @@ typedef struct uart_device UartDevice;
 typedef struct uart_device
 {
     const StatusCode (*mOpen)(UartDevice *);
-    const size_t (*mSend)(UartDevice *, const void *, const size_t);
-    const size_t (*mRecv)(UartDevice *, void *, const size_t, const unsigned int);
+    const ssize_t (*mSend)(UartDevice *, const void *, const size_t);
+    const ssize_t (*mRecv)(UartDevice *, void *, const size_t, const unsigned int);
     void (*mTcflush)(UartDevice *);
     void (*mFree)(void *);
 } UartDevice;