diff --git a/.cproject b/.cproject
index d186578..2837e5d 100644
--- a/.cproject
+++ b/.cproject
@@ -29,6 +29,7 @@
 							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.runtimelibrary_c.1187387752" name="Runtime library" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.runtimelibrary_c" useByScannerDiscovery="true" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.runtimelibrary_c.value.standard_c" valueType="enumerated"/>
 							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.converthex.1986680919" name="Convert to Intel Hex file (-O ihex)" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.converthex" useByScannerDiscovery="false" value="true" valueType="boolean"/>
 							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.convertbinary.1096157515" name="Convert to binary file (-O binary)" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.convertbinary" useByScannerDiscovery="false" value="false" valueType="boolean"/>
+							<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.listfile.466232204" name="Generate list file" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.option.listfile" useByScannerDiscovery="false" value="true" valueType="boolean"/>
 							<targetPlatform archList="all" binaryParser="org.eclipse.cdt.core.ELF" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.targetplatform.1735301810" isAbstract="false" osList="all" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.targetplatform"/>
 							<builder buildPath="${workspace_loc:/NaviKit_stm32}/Debug" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.builder.901379162" keepEnvironmentInBuildfile="false" name="Gnu Make Builder" parallelBuildOn="true" parallelizationNumber="unlimited" stopOnErr="false" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.builder"/>
 							<tool id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler.451303658" name="MCU GCC Assembler" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.assembler">
@@ -44,13 +45,14 @@
 									<listOptionValue builtIn="false" value="DEBUG"/>
 								</option>
 								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.includepaths.186388616" name="Include paths (-I)" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.includepaths" useByScannerDiscovery="false" valueType="includePath">
+									<listOptionValue builtIn="false" value="../App/Inc"/>
 									<listOptionValue builtIn="false" value="../Core/Inc"/>
 									<listOptionValue builtIn="false" value="../Drivers/CMSIS/Device/ST/STM32F1xx/Include"/>
 									<listOptionValue builtIn="false" value="../Drivers/CMSIS/Include"/>
 									<listOptionValue builtIn="false" value="../Drivers/STM32F1xx_HAL_Driver/Inc"/>
 									<listOptionValue builtIn="false" value="../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy"/>
 									<listOptionValue builtIn="false" value="../Middlewares/Coulomb"/>
-									<listOptionValue builtIn="false" value="../Middlewares/Log"/>
+									<listOptionValue builtIn="false" value="../Middlewares/EasyLogger/easylogger/inc"/>
 									<listOptionValue builtIn="false" value="../Middlewares/ST/STM32_USB_Device_Library/Class/CDC/Inc"/>
 									<listOptionValue builtIn="false" value="../Middlewares/ST/STM32_USB_Device_Library/Core/Inc"/>
 									<listOptionValue builtIn="false" value="../Middlewares/Third_Party/FreeRTOS/Source/include"/>
@@ -85,19 +87,13 @@
 							<tool id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.objcopy.symbolsrec.1182938463" name="MCU Output Converter Motorola S-rec with symbols" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.objcopy.symbolsrec"/>
 						</toolChain>
 					</folderInfo>
-					<fileInfo id="com.st.stm32cube.ide.mcu.gnu.managedbuild.config.exe.debug.502298629.1109380639" name="log.h" rcbsApplicability="disable" resourcePath="Middlewares/Log/log.h" toolsToInvoke="">
-						<tool customBuildStep="true" id="org.eclipse.cdt.managedbuilder.ui.rcbs.429610301" name="Resource Custom Build Step">
-							<inputType id="org.eclipse.cdt.managedbuilder.ui.rcbs.inputtype.835196452" name="Resource Custom Build Step Input Type">
-								<additionalInput kind="additionalinputdependency" paths=""/>
-							</inputType>
-							<outputType id="org.eclipse.cdt.managedbuilder.ui.rcbs.outputtype.145240003" name="Resource Custom Build Step Output Type"/>
-						</tool>
-					</fileInfo>
+					<fileInfo id="com.st.stm32cube.ide.mcu.gnu.managedbuild.config.exe.debug.502298629.1450340378" name="elog_cfg.h" rcbsApplicability="disable" resourcePath="Middlewares/EasyLogger/easylogger/inc/elog_cfg.h" toolsToInvoke=""/>
 					<sourceEntries>
+						<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="App"/>
 						<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="CMSIS"/>
 						<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="Core"/>
 						<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="Drivers"/>
-						<entry excluding="Log/printf.c" flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="Middlewares"/>
+						<entry excluding="Third_Party/FreeRTOS-Plus/Source/Utilities/logging|EasyLogger/easylogger/plugins|EasyLogger/docs" flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="Middlewares"/>
 						<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="USB_DEVICE"/>
 					</sourceEntries>
 				</configuration>
diff --git a/.settings/language.settings.xml b/.settings/language.settings.xml
index 6f0f543..862ce42 100644
--- a/.settings/language.settings.xml
+++ b/.settings/language.settings.xml
@@ -6,7 +6,7 @@
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
 			<provider copy-of="extension" id="org.eclipse.cdt.managedbuilder.core.GCCBuildCommandParser"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-1017288726492030834" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-1757187311709498749" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
@@ -18,7 +18,7 @@
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
 			<provider copy-of="extension" id="org.eclipse.cdt.managedbuilder.core.GCCBuildCommandParser"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-1060366468373618296" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="-1800265053591086211" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 083b6c7..ba6487b 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -5,6 +5,8 @@
         "*.tcu": "cpp",
         "*.json": "json",
         "*.txt": "txt",
-        "navikit.h": "c"
+        "navikit.h": "c",
+        "isp.h": "c",
+        "cdc.h": "c"
     }
 }
\ No newline at end of file
diff --git a/Core/Inc/isp.h b/App/Inc/isp.h
similarity index 57%
rename from Core/Inc/isp.h
rename to App/Inc/isp.h
index bf11179..c3fad42 100644
--- a/Core/Inc/isp.h
+++ b/App/Inc/isp.h
@@ -1,6 +1,17 @@
+/*
+ * @Description: 
+ * @Date: 2021-03-09 10:22:15
+ * @LastEditors: CK.Zh
+ * @LastEditTime: 2021-03-09 10:26:05
+ * @FilePath: \NaviKit_EC_stm32\App\Inc\isp.h
+ */
+
+#ifndef __ISP_H__
+#define __ISP_H__
 
 #include "main.h"
 
+
 #define ISP_ADDRESS 					0x1fffb000    //In-System-Program address in flash
 #define MAGIC_VALUE_ADDRESS 			RTC_BKP_DR1
 #define MAGIC_VALUE 					0xa5a5			//jump to isp while ISP_BKP_DR's value equal this
@@ -9,3 +20,5 @@
 void ISP_Jump();
 void ISP_Judge();
 bool ISP_Prepare();
+
+#endif
\ No newline at end of file
diff --git a/App/Inc/th_cdc.h b/App/Inc/th_cdc.h
new file mode 100644
index 0000000..46ea9a2
--- /dev/null
+++ b/App/Inc/th_cdc.h
@@ -0,0 +1,18 @@
+/*
+ * @Description: 
+ * @Date: 2021-03-09 10:37:34
+ * @LastEditors: CK.Zh
+ * @LastEditTime: 2021-03-09 10:42:05
+ * @FilePath: \NaviKit_EC_stm32\App\Inc\cdc.h
+ */
+#ifndef __TH_CDC_H__
+#define __TH_CDC_H__
+
+#include "cmsis_os2.h"
+
+osThreadId_t cdcMonitorTaskHandle;
+const osThreadAttr_t cdcMonitorTask_attributes;
+
+void StartCdcMonitorTask(void *argument);
+
+#endif
diff --git a/App/Inc/th_demo.h b/App/Inc/th_demo.h
new file mode 100644
index 0000000..bec5c01
--- /dev/null
+++ b/App/Inc/th_demo.h
@@ -0,0 +1,15 @@
+#ifndef __TH_DEMO_H__
+#define __TH_DEMO_H__
+
+#include "cmsis_os2.h"
+
+osThreadId_t DemoTask2Handle;
+osThreadId_t DemoTask1Handle;
+
+const osThreadAttr_t DemoTask1_attributes;
+const osThreadAttr_t DemoTask2_attributes;
+
+void StartDemoTask1(void *argument);
+void StartDemoTask2(void *argument);
+
+#endif
diff --git a/App/Inc/th_elog.h b/App/Inc/th_elog.h
new file mode 100644
index 0000000..57e11e6
--- /dev/null
+++ b/App/Inc/th_elog.h
@@ -0,0 +1,10 @@
+#ifndef __TH_ELOG_H__
+#define __TH_ELOG_H__
+
+#include "cmsis_os2.h"
+osThreadId_t ElogInitTaskHandle;
+const osThreadAttr_t ElogInitTask_attributes;
+
+void StartElogInitTask(void *argument);
+void my_elog_init();
+#endif
diff --git a/Core/Src/isp.c b/App/Src/isp.c
similarity index 78%
rename from Core/Src/isp.c
rename to App/Src/isp.c
index 5fa0a31..f47eec7 100644
--- a/Core/Src/isp.c
+++ b/App/Src/isp.c
@@ -1,4 +1,11 @@
-#include "isp.h"
+/*
+ * @Description: 
+ * @Date: 2021-03-09 10:21:58
+ * @LastEditors: CK.Zh
+ * @LastEditTime: 2021-03-09 17:42:16
+ * @FilePath: \NaviKit_EC_stm32\App\Src\isp.c
+ */
+#include <isp.h>
 #include "cmsis_os2.h"                  // ::CMSIS:RTOS2
 
 void ISP_Jump(){
@@ -33,6 +40,8 @@ void ISP_Judge()
     ISP_Jump();
   }
 }
+
+
 bool ISP_Prepare(){
 	RTC_HandleTypeDef hrtc;
 
@@ -50,11 +59,12 @@ bool ISP_Prepare(){
     if(HAL_RTCEx_BKUPRead(&hrtc,MAGIC_VALUE_ADDRESS) == MAGIC_VALUE)
     {//write successful
 		TaskBeep(400,5);
-        Log(trace,sys,"Enter to EC update state.");
-        Log(info,sys,"EC will reboot ,then run ISP automatic.");
+        log_v("Enter to EC update state.");
+        log_i("EC will reboot ,then run ISP automatic.");
         HAL_NVIC_SystemReset();
     }
     else{
-        Log(error,sys,"Backup register writen error, can not enter EC update state.");
+        log_e("Backup register writen error, can not enter EC update state.");
+        return false;
     }
 }
diff --git a/App/Src/th_cdc.c b/App/Src/th_cdc.c
new file mode 100644
index 0000000..2d96d80
--- /dev/null
+++ b/App/Src/th_cdc.c
@@ -0,0 +1,57 @@
+
+#define LOG_TAG    "TH-CDC"
+
+#include <th_cdc.h>
+#include "main.h"
+#include "usbd_cdc_if.h"
+#include "navikit.h"
+
+
+//global variable
+extern uint8_t port_restart[];
+extern uint32_t number_restart;
+
+
+//task attributes
+const osThreadAttr_t cdcMonitorTask_attributes = {
+  .name = "cdcMonitorTask",
+  .priority = (osPriority_t) osPriorityNormal,
+  .stack_size = 128 * 4
+};
+
+//task instance
+void StartCdcMonitorTask(void *argument){
+	uint8_t port_restart_temp[64]={0};
+	uint32_t number_restart_temp =0;
+	bool beep_flag = false;
+	for(;;){
+		if(number_restart){
+			number_restart_temp = number_restart;
+		    memcpy(port_restart_temp,&port_restart,number_restart_temp<=12 ? number_restart_temp : 12);
+			number_restart = 0;
+			// turn off usb port device
+			for(uint8_t i=0;i<number_restart_temp;i++){
+				if(port_restart_temp[i]<12){
+					PWR_Enable(port_restart_temp[i], false,200);
+					log_i("USB Port%d power off",port_restart_temp[i]);
+					CDC_Transmit_FS(&port_restart_temp[i],1);
+				}
+			}
+			//turn on usb port device
+			beep_flag = false;
+			for(uint8_t i=0;i<number_restart_temp;i++){
+				if(port_restart_temp[i]<12){
+					PWR_Enable(port_restart_temp[i], true,200);
+					log_i("USB Port%d power on",port_restart_temp[i]);
+					CDC_Transmit_FS(&port_restart_temp[i],1);
+					beep_flag = true;
+				}
+			}
+			if(beep_flag){
+				beep_flag = false;
+				TaskBeep(50, 1);
+			}
+		}
+		osDelay(100);
+	}
+}
diff --git a/App/Src/th_demo.c b/App/Src/th_demo.c
new file mode 100644
index 0000000..1e51e56
--- /dev/null
+++ b/App/Src/th_demo.c
@@ -0,0 +1,30 @@
+#define LOG_TAG    "TH-Demo"
+
+#include <th_demo.h>
+#include "main.h"
+
+
+const osThreadAttr_t DemoTask1_attributes = {
+  .name = "DemoTask1",
+  .priority = (osPriority_t) osPriorityNormal,
+  .stack_size = 128 * 4
+};
+const osThreadAttr_t DemoTask2_attributes = {
+  .name = "DemoTask2",
+  .priority = (osPriority_t) osPriorityBelowNormal,
+  .stack_size = 128 * 4
+};
+void StartDemoTask1(void *argument){
+	uint8_t i=0;
+	for(;;){
+		log_v("demo task 1 [%d].",i++);
+		osDelay(1000);
+	}
+}
+void StartDemoTask2(void *argument){
+	uint8_t i=0;
+	for(;;){
+		log_v("demo task 2 [%d].",i++);
+		osDelay(1000);
+	}
+}
diff --git a/App/Src/th_elog.c b/App/Src/th_elog.c
new file mode 100644
index 0000000..63041ba
--- /dev/null
+++ b/App/Src/th_elog.c
@@ -0,0 +1,86 @@
+/*
+ * @Description: 
+ * @Date: 2021-03-09 11:30:52
+ * @LastEditors: CK.Zh
+ * @LastEditTime: 2021-03-09 17:50:24
+ * @FilePath: \NaviKit_EC_stm32\App\Src\th_elog.c
+ */
+
+#define LOG_TAG    "TH-Elog"
+
+#include <th_elog.h>
+#include "main.h"
+
+
+const osThreadAttr_t ElogInitTask_attributes = {
+  .name = "ElogInitTask",
+  .priority = (osPriority_t) osPriorityLow,
+  .stack_size = 128 * 4
+};
+
+void StartElogInitTask(void *argument){
+
+	elog_init();
+    /* close printf buffer */
+    setbuf(stdout, NULL);
+#ifndef DEBUG	//release mode :only output level、tag、time information
+    ElogFmtIndex ELOG_FMT_SETTING = ELOG_FMT_LVL | ELOG_FMT_TAG | ELOG_FMT_TIME;
+#else	//debug mode:output all information
+    ElogFmtIndex ELOG_FMT_SETTING = ELOG_FMT_ALL ;
+#endif
+    /* set EasyLogger log format */
+    /* 断言：输出所有内容 */
+    elog_set_fmt(ELOG_LVL_ASSERT, ELOG_FMT_SETTING);
+    /* 错误：输出级别、标签和时间 */
+    elog_set_fmt(ELOG_LVL_ERROR, ELOG_FMT_SETTING);
+    /* 警告：输出级别、标签和时间 */
+    elog_set_fmt(ELOG_LVL_WARN, ELOG_FMT_SETTING);
+    /* 信息：输出级别、标签和时间 */
+    elog_set_fmt(ELOG_LVL_INFO, ELOG_FMT_SETTING);
+    /* 调试：输出除了方法名之外的所有内容 */
+    elog_set_fmt(ELOG_LVL_DEBUG, ELOG_FMT_SETTING);
+    /* 详细：输出除了方法名之外的所有内容 */
+    elog_set_fmt(ELOG_LVL_VERBOSE, ELOG_FMT_SETTING);
+
+    /* start EasyLogger */
+    elog_start();
+
+
+
+//    log_a("Hello EasyLogger!");
+//    log_e("Hello EasyLogger!");
+//    log_w("Hello EasyLogger!");
+//    log_i("Hello EasyLogger!");
+//    log_d("Hello EasyLogger!");
+//    log_v("Hello EasyLogger!");
+//
+//    osDelay(10000);
+//    log_d("Hello EasyLogger!");
+//	osThreadExit();//exit this thread,execute this code only once
+}
+void my_elog_init(){
+	elog_init();
+    /* close printf buffer */
+    setbuf(stdout, NULL);
+#ifndef DEBUG	//release mode :only output level、tag、time information
+    ElogFmtIndex ELOG_FMT_SETTING = ELOG_FMT_LVL | ELOG_FMT_TAG | ELOG_FMT_TIME;
+#else	//debug mode:output all information
+    ElogFmtIndex ELOG_FMT_SETTING = ELOG_FMT_ALL ;
+#endif
+    /* set EasyLogger log format */
+    /* 断言：输出所有内容 */
+    elog_set_fmt(ELOG_LVL_ASSERT, ELOG_FMT_SETTING);
+    /* 错误：输出级别、标签和时间 */
+    elog_set_fmt(ELOG_LVL_ERROR, ELOG_FMT_SETTING);
+    /* 警告：输出级别、标签和时间 */
+    elog_set_fmt(ELOG_LVL_WARN, ELOG_FMT_SETTING);
+    /* 信息：输出级别、标签和时间 */
+    elog_set_fmt(ELOG_LVL_INFO, ELOG_FMT_SETTING);
+    /* 调试：输出除了方法名之外的所有内容 */
+    elog_set_fmt(ELOG_LVL_DEBUG, ELOG_FMT_SETTING);
+    /* 详细：输出除了方法名之外的所有内容 */
+    elog_set_fmt(ELOG_LVL_VERBOSE, ELOG_FMT_SETTING);
+
+    /* start EasyLogger */
+    elog_start();
+}
diff --git a/Core/Inc/main.h b/Core/Inc/main.h
index 438acad..ea2b4ca 100644
--- a/Core/Inc/main.h
+++ b/Core/Inc/main.h
@@ -34,6 +34,8 @@ extern "C" {
 /* USER CODE BEGIN Includes */
 #include "stdbool.h"
 #include "log.h"
+#include "elog.h"
+#include <isp.h>
 /* USER CODE END Includes */
 
 /* Exported types ------------------------------------------------------------*/
diff --git a/Core/Src/freertos.c b/Core/Src/freertos.c
index b8bf849..518bb11 100644
--- a/Core/Src/freertos.c
+++ b/Core/Src/freertos.c
@@ -1,3 +1,10 @@
+/*
+ * @Description: 
+ * @Date: 2020-04-02 21:44:31
+ * @LastEditors: CK.Zh
+ * @LastEditTime: 2021-03-09 18:11:08
+ * @FilePath: \NaviKit_EC_stm32\Core\Src\freertos.c
+ */
 /* USER CODE BEGIN Header */
 /**
   ******************************************************************************
@@ -16,9 +23,13 @@
   *
   ******************************************************************************
   */
+
+//TODO:拆分该文件中的功能到不同的文件中，按照任务进行模块化拆分
+
 /* USER CODE END Header */
 
 /* Includes ------------------------------------------------------------------*/
+
 #include "FreeRTOS.h"
 #include "task.h"
 #include "main.h"
@@ -29,7 +40,10 @@
 #include "timers.h"
 #include "navikit.h"
 #include "coulomb.h"
-#include "usbd_cdc_if.h"
+#include <th_cdc.h>
+#include <th_demo.h>
+#include <th_elog.h>
+
 /* USER CODE END Includes */
 
 /* Private typedef -----------------------------------------------------------*/
@@ -49,8 +63,7 @@
 
 /* Private variables ---------------------------------------------------------*/
 /* USER CODE BEGIN Variables */
-extern uint8_t port_restart;
-extern uint8_t number_restart;
+
 //Timer
 osTimerId_t PwrBtnLongPressTimerHandle;
 const osTimerAttr_t PwrBtnLongPressTimer_attributes = {
@@ -75,13 +88,6 @@ const osTimerAttr_t IdleStateHoldTimer_attributes = {
 
 //Thread
 
-osThreadId_t cdcMonitorTaskHandle;
-const osThreadAttr_t cdcMonitorTask_attributes = {
-  .name = "cdcMonitorTask",
-  .priority = (osPriority_t) osPriorityNormal,
-  .stack_size = 128 * 4
-};
-
 osThreadId_t LogtoUartTaskHandle;
 const osThreadAttr_t LogtoUartTask_attributes = {
   .name = "LogtoUartTask",
@@ -89,18 +95,7 @@ const osThreadAttr_t LogtoUartTask_attributes = {
   .stack_size = 128 * 4
 };
 
-osThreadId_t TestTask1Handle;
-const osThreadAttr_t TestTask1_attributes = {
-  .name = "TestTask1",
-  .priority = (osPriority_t) osPriorityNormal,
-  .stack_size = 128 * 4
-};
-osThreadId_t TestTask2Handle;
-const osThreadAttr_t TestTask2_attributes = {
-  .name = "TestTask2",
-  .priority = (osPriority_t) osPriorityBelowNormal,
-  .stack_size = 128 * 4
-};
+
 
 //Queue
 //osMessageQueueId_t LogMessageQueueHandle;
@@ -159,10 +154,7 @@ void IdleStateHoldTimerCallback(void *argument);
 
 //task
 void StartLogtoUartTask(void *argument);
-void StartCdcMonitorTask(void *argument);
 
-void StartTestTask1(void *argument);
-void StartTestTask2(void *argument);
 
 /* USER CODE END FunctionPrototypes */
 
@@ -251,7 +243,9 @@ __weak void PostSleepProcessing(uint32_t *ulExpectedIdleTime)
   */
 void MX_FREERTOS_Init(void) {
   /* USER CODE BEGIN Init */
-       
+//  elog_init();
+	my_elog_init();
+	  NaviKit_var_init();
   /* USER CODE END Init */
 
   /* USER CODE BEGIN RTOS_MUTEX */
@@ -297,10 +291,12 @@ void MX_FREERTOS_Init(void) {
   /* USER CODE BEGIN RTOS_THREADS */
   /* add threads, ... */
 //   LogtoUartTaskHandle = osThreadNew(StartLogtoUartTask, NULL, &LogtoUartTask_attributes);
-//  TestTask1Handle = osThreadNew(StartTestTask1, NULL, &TestTask1_attributes);
-//  TestTask2Handle = osThreadNew(StartTestTask2, NULL, &TestTask2_attributes);
+//  DemoTask1Handle = osThreadNew(StartDemoTask1, NULL, &DemoTask1_attributes);
+//  DemoTask2Handle = osThreadNew(StartDemoTask2, NULL, &DemoTask2_attributes);
 
   cdcMonitorTaskHandle = osThreadNew(StartCdcMonitorTask, NULL, &cdcMonitorTask_attributes);
+//   ElogInitTaskHandle = osThreadNew(StartElogInitTask, NULL, &ElogInitTask_attributes);
+//   ElogOutputMutexHandle = osMutexNew(&ElogOutputMutex_attributes);
 
   /* USER CODE END RTOS_THREADS */
 
@@ -338,38 +334,43 @@ void StartDefaultTask(void *argument)
 			else{
 				NaviKit.sys.power_btn = true;
 			}
-			Log(info,sys,"EC Reset source :Power Button WakeUP");
+			log_i("EC Reset source :Power Button WakeUP");
 		}else{
 			NaviKit.sys.next_sta = idle;
-			Log(info,sys,"EC Reset source :RTC WakeUP");
+			log_i("EC Reset source :RTC WakeUP");
 			enter_standby_state();
 		}
 	}else{//judge reset source "power on"
-		Log(info,sys,"EC Reset source :PowerON");
+		log_i("EC Reset source :PowerON");
 		if(HAL_GPIO_ReadPin(SYS_CUSTOM_BTN_GPIO_Port, SYS_CUSTOM_BTN_Pin)==GPIO_PIN_RESET){
-			Log(debug,sys,"EC next state isp");
+			log_d("EC next state isp");
 			NaviKit.sys.next_sta = isp;
 		}else{
 			NaviKit.sys.next_sta = idle;
 		}
-		TaskBeep(50,1);
+//		TaskBeep(50,1);
 	}
 
-	Log(info,sys,"----------------------------------------------");
-	Log(info,sys,"Copyright (c) Powered by www.autolabor.com.cn");
+	log_i("----------------------------------------------");
+	log_i("Copyright (c) Powered by www.autolabor.com.cn");
 
-	Log(info,sys,"EC Firmware: %s[%s], build: %s, %s, by STD:%u",APP_VERSION,DEPLOY_MODE,__DATE__ ,__TIME__,__STDC_VERSION__  );
-	Log(info,sys,"HAL Version: %u ", HAL_GetHalVersion());
-	Log(info,sys,"Revision ID: %u ", HAL_GetREVID());
-	Log(info,sys,"Device ID: %u ", HAL_GetDEVID());
-	Log(info,sys,"Chip UID: %u%u%u ", HAL_GetUIDw0(),HAL_GetUIDw1(),HAL_GetUIDw2());
+	log_i("EC Firmware: %s[%s], build: %s, %s, by STD:%u",APP_VERSION,DEPLOY_MODE,__DATE__ ,__TIME__,__STDC_VERSION__  );
+	log_i("HAL Version: 0x%X ", HAL_GetHalVersion());
+	log_i("Revision ID: 0x%X ", HAL_GetREVID());
+	log_i("Device ID: 0x%X ", HAL_GetDEVID());
+	log_i("Chip UID: 0x%X%X%X ", HAL_GetUIDw0(),HAL_GetUIDw1(),HAL_GetUIDw2());
 
 	if(osOK == osKernelGetInfo(&osVersion,id_buf,id_size)){
-		Log(info,sys,"OS Kernel Version: %u ", osVersion.kernel);
-		Log(info,sys,"OS Kernel ID: %s ",id_buf);
+		log_i("OS Kernel Version: %u ", osVersion.kernel);
+		log_i("OS Kernel ID: %s ",id_buf);
 	}
-	Log(info,sys,"Core initial successfully");
-	Log(info,sys,"----------------------------------------------");
+	log_i("OS Kernel Tick Frequence: %d ",osKernelGetTickFreq());
+	log_i("OS Kernel System Timer Frequence: %d ",osKernelGetSysTimerFreq());
+    log_i("Log Library Version: V%s",ELOG_SW_VERSION);
+
+	log_i("Core initial successfully");
+	//    log_i("EasyLogger V%s is initialize success.", ELOG_SW_VERSION);
+	log_i("----------------------------------------------");
 
   /* Infinite loop */
   for(;;)
@@ -392,8 +393,8 @@ void StartDefaultTask(void *argument)
 //				}else{
 //					NaviKit.sys.next_sta = NaviKit.sys.sta;
 //					TaskBeep(500,2);
-//					Log(error,pmb,"Main power not exist, retry after plug in it.");
-//					 Log(fatal,pmb,"Main power is exception:%dmV",(uint32_t)(NaviKit.pmb.rails.main_pwr*1000));
+//					log_e(,"Main power not exist, retry after plug in it.");
+//					 log_e("Main power is exception:%dmV",(uint32_t)(NaviKit.pmb.rails.main_pwr*1000));
 //				}
 			}break;
 			case sleep:{
@@ -407,8 +408,8 @@ void StartDefaultTask(void *argument)
 //				}else{
 //					NaviKit.sys.next_sta = NaviKit.sys.sta;
 //					TaskBeep(500,2);
-//					Log(error,pmb,"Main power not exist, retry after plug in it.");
-//					 Log(fatal,pmb,"Main power is exception:%dmV",(uint32_t)(NaviKit.pmb.rails.main_pwr*1000));
+//					log_e(,"Main power not exist, retry after plug in it.");
+//					 log_e("Main power is exception:%dmV",(uint32_t)(NaviKit.pmb.rails.main_pwr*1000));
 //				}
 			}break;
 			case isp:{
@@ -444,7 +445,7 @@ void StartLedBlinkTask(void *argument)
 {
   /* USER CODE BEGIN StartLedBlinkTask */
   /* Infinite loop */
-//	Log(trace,"Start LED Blink");
+//	log_v("Start LED Blink");
 	for(;;)
 	{
 
@@ -504,7 +505,7 @@ void StartLedBlinkTask(void *argument)
 void StartCoulombRead(void *argument)
 {
   /* USER CODE BEGIN StartCoulombRead */
-//	Log(trace,"Start Coulomb Read Task");
+//	log_v("Start Coulomb Read Task");
 	//写寄存器方法
   coulomb_write_config_load();
   coulomb_write_config_actual_to_raw();
@@ -523,6 +524,7 @@ void StartCoulombRead(void *argument)
 		  osDelay(500);
 	  else
 		  osDelay(5000);
+
   }
   /* USER CODE END StartCoulombRead */
 }
@@ -537,7 +539,7 @@ void StartCoulombRead(void *argument)
 void StartPowerMonitTask(void *argument)
 {
   /* USER CODE BEGIN StartPowerMonitTask */
-//	Log(trace,"Start Power Monitor Task");
+//	log_v("Start Power Monitor Task");
 	HAL_ADCEx_Calibration_Start(&hadc1);
 	HAL_ADC_Start_DMA(&hadc1, (uint32_t*)&(NaviKit.pmb.rails.adc), ADC_CH_COUNT);
 	osDelay(100);
@@ -547,10 +549,10 @@ void StartPowerMonitTask(void *argument)
 
 		if(NaviKit.pmb.rails.main_pwr > 30){
 				TaskBeep(200,1);
-			 Log(fatal,pmb,"Main power is exception:%dmV",(uint32_t)(NaviKit.pmb.rails.main_pwr*1000));
+			 log_e("Main power is exception:%dmV",(uint32_t)(NaviKit.pmb.rails.main_pwr*1000));
 		}
 		if(NaviKit.pmb.rails.bkp_bat > 15){
-			 Log(fatal,pmb,"Backup battery is exception:%dmV",(uint32_t)(NaviKit.pmb.rails.bkp_bat*1000));
+			 log_e("Backup battery is exception:%dmV",(uint32_t)(NaviKit.pmb.rails.bkp_bat*1000));
 				TaskBeep(200,1);
 		}
 		//stat1 stat2   lead-acid
@@ -562,40 +564,40 @@ void StartPowerMonitTask(void *argument)
 		NaviKit.pmb.sta.chrg_stat2 = (bool)HAL_GPIO_ReadPin(PMB_CHRG_STAT2_GPIO_Port, PMB_CHRG_STAT2_Pin);
 
 		if(!NaviKit.pmb.sta.chrg_stat1 && !NaviKit.pmb.sta.chrg_stat2)
-			Log(trace,pmb,"Backup battery status:%dmV Bulk Charge(Vth=12.6V)",(uint32_t)(NaviKit.pmb.rails.bkp_bat*1000));
+			log_v("Backup battery status:%dmV Bulk Charge(Vth=12.6V)",(uint32_t)(NaviKit.pmb.rails.bkp_bat*1000));
 		if(!NaviKit.pmb.sta.chrg_stat1 && NaviKit.pmb.sta.chrg_stat2)
-			Log(trace,pmb,"Backup battery status:%dmV Absorption Charge(Vth=14.4V)",(uint32_t)(NaviKit.pmb.rails.bkp_bat*1000));
+			log_v("Backup battery status:%dmV Absorption Charge(Vth=14.4V)",(uint32_t)(NaviKit.pmb.rails.bkp_bat*1000));
 		if(NaviKit.pmb.sta.chrg_stat1 && !NaviKit.pmb.sta.chrg_stat2)
-			Log(trace,pmb,"Backup battery status:%dmV Float Charge(Vth=13.3V)",(uint32_t)(NaviKit.pmb.rails.bkp_bat*1000));
+			log_v("Backup battery status:%dmV Float Charge(Vth=13.3V)",(uint32_t)(NaviKit.pmb.rails.bkp_bat*1000));
 		if(NaviKit.pmb.sta.chrg_stat1 && NaviKit.pmb.sta.chrg_stat2)
-			Log(trace,pmb,"Backup battery status:%dmV Not Charge",(uint32_t)(NaviKit.pmb.rails.bkp_bat*1000));
+			log_v("Backup battery status:%dmV Not Charge",(uint32_t)(NaviKit.pmb.rails.bkp_bat*1000));
 
 		if(NaviKit.sys.sta == run || NaviKit.sys.sta == dfu ){
 			if(NaviKit.pmb.rails.main_pwr < 19){
 				TaskBeep(200,1);
-				 Log(warning,pmb,"Main power has been lost, please shutdown computer as soon as possible:%dmV",(uint32_t)(NaviKit.pmb.rails.main_pwr*1000));
+				 log_w("Main power has been lost, please shutdown computer as soon as possible:%dmV",(uint32_t)(NaviKit.pmb.rails.main_pwr*1000));
 			}else
-				Log(trace,pmb,"Main power rail regular:%dmV",(uint32_t)(NaviKit.pmb.rails.main_pwr*1000));
+				log_v("Main power rail regular:%dmV",(uint32_t)(NaviKit.pmb.rails.main_pwr*1000));
 
 			if(NaviKit.pmb.rails.out_24v > 26.4 || NaviKit.pmb.rails.out_24v < 21.6)
-				 Log(fatal,pmb,"24V(±10%%) power rail exception:%dmV",(uint32_t)(NaviKit.pmb.rails.out_24v*1000));
+				 log_e("24V(±10%%) power rail exception:%dmV",(uint32_t)(NaviKit.pmb.rails.out_24v*1000));
 			else
-				Log(trace,pmb,"24V(±10%%) power rail regular:%dmV",(uint32_t)(NaviKit.pmb.rails.out_24v*1000));
+				log_v("24V(±10%%) power rail regular:%dmV",(uint32_t)(NaviKit.pmb.rails.out_24v*1000));
 
 			if(NaviKit.pmb.rails.out_5v > 5.5 || NaviKit.pmb.rails.out_5v < 4.5)
-				 Log(fatal,pmb,"5V(±10%%) power rail exception:%dmV",(uint32_t)(NaviKit.pmb.rails.out_5v*1000));
+				 log_e("5V(±10%%) power rail exception:%dmV",(uint32_t)(NaviKit.pmb.rails.out_5v*1000));
 			else
-				Log(trace,pmb,"5V(±10%%) power rail regular:%dmV",(uint32_t)(NaviKit.pmb.rails.out_5v*1000));
+				log_v("5V(±10%%) power rail regular:%dmV",(uint32_t)(NaviKit.pmb.rails.out_5v*1000));
 
 			if(NaviKit.pmb.rails.out_12v > 13.2 || NaviKit.pmb.rails.out_12v < 10.8)
-				 Log(fatal ,pmb,"12V(±10%%) power rail exception:%dmV",(uint32_t)(NaviKit.pmb.rails.out_12v*1000));
+				 log_e("12V(±10%%) power rail exception:%dmV",(uint32_t)(NaviKit.pmb.rails.out_12v*1000));
 			else
-				Log(trace,pmb,"12V(±10%%) power rail regular:%dmV",(uint32_t)(NaviKit.pmb.rails.out_12v*1000));
+				log_v("12V(±10%%) power rail regular:%dmV",(uint32_t)(NaviKit.pmb.rails.out_12v*1000));
 
 			if(NaviKit.pmb.rails.bkp_bat < 9.5)
-				 Log(warning,pmb,"Backup battery exception:%dmV",(uint32_t)(NaviKit.pmb.rails.bkp_bat*1000));
+				 log_w("Backup battery exception:%dmV",(uint32_t)(NaviKit.pmb.rails.bkp_bat*1000));
 			else
-				Log(trace,pmb,"Backup battery is regular:%dmV",(uint32_t)(NaviKit.pmb.rails.bkp_bat*1000));
+				log_v("Backup battery is regular:%dmV",(uint32_t)(NaviKit.pmb.rails.bkp_bat*1000));
 
 		    osDelay(2000);
 
@@ -603,8 +605,8 @@ void StartPowerMonitTask(void *argument)
 		  osDelay(5000);
 
 	  }
-//		Log(debug,sys,"state :%d",NaviKit.sys.sta);
-//		Log(debug,sys,"next_state :%d",NaviKit.sys.next_sta);
+//		log_d("state :%d",NaviKit.sys.sta);
+//		log_d("next_state :%d",NaviKit.sys.next_sta);
 
   }
   /* USER CODE END StartPowerMonitTask */
@@ -621,7 +623,7 @@ void StartEventDetect(void *argument)
 {
   /* USER CODE BEGIN StartEventDetect */
   /* Infinite loop */
-//	Log(trace,"Start Event Detect Task.");
+//	log_v("Start Event Detect Task.");
   for(;;)
   {
 	  	  //power button
@@ -646,6 +648,8 @@ void StartEventDetect(void *argument)
 			osTimerStart(CustBtnShortPressTimerHandle,100);
 		}
 	    osDelay(2);
+
+
   }
   /* USER CODE END StartEventDetect */
 }
@@ -653,75 +657,27 @@ void StartEventDetect(void *argument)
 /* Private application code --------------------------------------------------*/
 /* USER CODE BEGIN Application */
 
-void StartCdcMonitorTask(void *argument){
-	uint8_t port_restart_temp[64]={0};
-	uint32_t number_restart_temp =0;
-	bool beep_flag = false;
-	for(;;){
-		if(number_restart){
-			number_restart_temp = number_restart;
-		    memcpy(port_restart_temp,&port_restart,number_restart_temp<=12 ? number_restart_temp : 12);
-			number_restart = 0;
-			// turn off usb port device
-			for(uint8_t i=0;i<number_restart_temp;i++){
-				if(port_restart_temp[i]<12){
-					PWR_Enable(port_restart_temp[i], false,200);
-					Log(info,sys,"USB Port%d power off",port_restart_temp[i]);
-					CDC_Transmit_FS(&port_restart_temp[i],1);
-				}
-			}
-			//turn on usb port device
-			beep_flag = false;
-			for(uint8_t i=0;i<number_restart_temp;i++){
-				if(port_restart_temp[i]<12){
-					PWR_Enable(port_restart_temp[i], true,200);
-					Log(info,sys,"USB Port%d power on",port_restart_temp[i]);
-					CDC_Transmit_FS(&port_restart_temp[i],1);
-					beep_flag = true;
-				}
-			}
-			if(beep_flag){
-				beep_flag = false;
-				TaskBeep(50, 1);
-			}
-		}
-		osDelay(100);
-	}
-}
 void StartLogtoUartTask(void *argument){
 	
 	// HAL_UART_Transmit(&huart1,(uint8_t *)&ch,1,2);
 }
 
-void StartTestTask1(void *argument){
-	uint8_t i=0;
-	for(;;){
-		Log(debug,sys,"test task 1 [%d].",i++);
-		osDelay(1000);
-	}
-}
-void StartTestTask2(void *argument){
-	uint8_t i=0;
-	for(;;){
-		Log(debug,sys,"test task 2 [%d].",i++);
-		osDelay(1000);
-	}
-}
+
 void PwrBtnLongPressTimerCallback(void *argument)
 {
-  Log(trace,sys,"power btn long pressed.");
+  log_v("power btn long pressed.");
     switch(NaviKit.sys.sta){
-      case run:  {NaviKit.sys.next_sta = idle;Log(trace,sys,"change to idle");      }break;//system is run now, user request to idle
-      case idle: {NaviKit.sys.next_sta = run;Log(trace,sys,"change to run");      }break;//system is idle now , user request to power on
-      case dfu:  {NaviKit.sys.next_sta = idle;Log(trace,sys,"change to idle");      }break;
-      case sleep:{NaviKit.sys.next_sta = run;Log(trace,sys,"change to run");      }break;
-      case isp:  {NaviKit.sys.next_sta = idle;Log(trace,sys,"change to idle");      }break;
+      case run:  {NaviKit.sys.next_sta = idle;log_v("change to idle");      }break;//system is run now, user request to idle
+      case idle: {NaviKit.sys.next_sta = run;log_v("change to run");      }break;//system is idle now , user request to power on
+      case dfu:  {NaviKit.sys.next_sta = idle;log_v("change to idle");      }break;
+      case sleep:{NaviKit.sys.next_sta = run;log_v("change to run");      }break;
+      case isp:  {NaviKit.sys.next_sta = idle;log_v("change to idle");      }break;
       default : break;
     }
 }
 void CustBtnLongPressTimerCallback(void *argument)
 {
-  Log(trace,sys,"custom btn long pressed.");
+  log_v("custom btn long pressed.");
     switch(NaviKit.sys.sta){
       case run:{//system is run now, user request to reboot SOM
     	  som_reboot(100);
@@ -738,10 +694,10 @@ void CustBtnLongPressTimerCallback(void *argument)
 }
 void PwrBtnShortPressTimerCallback(void *argument)
 {
-  Log(trace,sys,"power btn short pressed.");
+  log_v("power btn short pressed.");
     switch(NaviKit.sys.sta){
       case run:  {//som is running, send sleep requeset to operate system
-    	  Log(trace,som,"Request operate system pop up the shutdown dialog.");
+    	  log_v("Request operate system pop up the shutdown dialog.");
     	  PWR_Enable(SOM_SLEEP,true,100);
     	  PWR_Enable(SOM_SLEEP,false,0);
       }break;
@@ -754,7 +710,7 @@ void PwrBtnShortPressTimerCallback(void *argument)
 }
 void CustBtnShortPressTimerCallback(void *argument)
 {
-  Log(trace,sys,"custom btn short pressed.");
+  log_v("custom btn short pressed.");
     switch(NaviKit.sys.sta){
       case run:{
       }break;
@@ -769,7 +725,7 @@ void CustBtnShortPressTimerCallback(void *argument)
 }
 void IdleStateHoldTimerCallback(void *argument){
 	if(NaviKit.sys.sta == idle && NaviKit.sys.next_sta == idle){
-	  Log(trace,sys,"Idle state duration more than 5000ms.");
+	  log_v("Idle state duration more than 5000ms.");
 	  NaviKit.sys.next_sta = standby;
 	}
 }
diff --git a/Core/Src/main.c b/Core/Src/main.c
index e6e350b..e2b0e1b 100644
--- a/Core/Src/main.c
+++ b/Core/Src/main.c
@@ -107,7 +107,6 @@ int main(void)
   MX_NVIC_Init();
   /* USER CODE BEGIN 2 */
 
-  NaviKit_var_init();
   /* USER CODE END 2 */
 
   /* Init scheduler */
diff --git a/Core/Src/navikit.c b/Core/Src/navikit.c
index 013ea5c..87f81ea 100644
--- a/Core/Src/navikit.c
+++ b/Core/Src/navikit.c
@@ -65,7 +65,7 @@ void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
 				  if(NaviKit.sys.sta == run){//if jetson nano shutdown output low,the power_en should be set low less than 10us
 						PWR_Enable(SOM_PWR_EN,false,0);
 						NaviKit.sys.next_sta = idle;
-						Log(info,som,"SOM's shutdown_req pin falling edge, SOM request to shutdown.");
+						log_i("SOM's shutdown_req pin falling edge, SOM request to shutdown.");
 				  }
 			}else{//Rising edge trigger
 				}
@@ -73,26 +73,26 @@ void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
 
 		case SOM_MOD_SLEEP_Pin:{
 			if(HAL_GPIO_ReadPin(SOM_MOD_SLEEP_GPIO_Port, SOM_MOD_SLEEP_Pin)==GPIO_PIN_SET){//Rising edge trigger
-				Log(info,som,"SOM's sleep pin rising edge.");
+				log_i("SOM's sleep pin rising edge.");
 			}else{//falling edge trigger
-				Log(trace,som,"SOM's sleep pin falling edge.");
+				log_v("SOM's sleep pin falling edge.");
 			}
 		}break;
 		case SYS_POWER_BTN_Pin:{
 			if(HAL_GPIO_ReadPin(SYS_POWER_BTN_GPIO_Port, SYS_POWER_BTN_Pin)==GPIO_PIN_SET){//Rising edge trigger
 				NaviKit.sys.power_btn = true;
-				Log(debug,sys,"power_btn status: pressed.");
+				log_v("power_btn status: pressed.");
 			}else{//falling edge trigger
 				NaviKit.sys.power_btn = false;
-				Log(debug,sys,"power_btn status: released.");
+				log_v("power_btn status: released.");
 			}
 		}break;
 		case SYS_CUSTOM_BTN_Pin:{
 			if(HAL_GPIO_ReadPin(SYS_CUSTOM_BTN_GPIO_Port, SYS_CUSTOM_BTN_Pin)==GPIO_PIN_RESET){//falling edge trigger
-				Log(debug,sys,"custom_btn status: pressed.");
+				log_v("custom_btn status: pressed.");
 				NaviKit.sys.custom_btn = true;
 			}else{//Rising edge trigger
-				Log(debug,sys,"custom_btn status: released.");
+				log_v("custom_btn status: released.");
 				NaviKit.sys.custom_btn = false;
 			}
 		}break;
@@ -102,7 +102,7 @@ void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
 
 
 void enter_standby_state(){
-	  Log(info,sys,"Enter to STANDBY Mode to save power, see you!");
+	  log_i("Enter to STANDBY Mode to save power, see you!");
 		HAL_PWR_EnableWakeUpPin(PWR_WAKEUP_PIN1);//Enable PA0 wakeup function
 	    __HAL_RCC_RTC_DISABLE();
 	  HAL_PWR_EnterSTANDBYMode();
@@ -116,7 +116,7 @@ void enter_isp_state()
 //timeout:the time of wait
 void enter_idle_state(uint16_t delay)
 {
-	Log(info,sys,"Enter to idle state.");
+	log_i("Enter to idle state.");
 	TaskBeep(50,1);
 
 	PWR_Enable(SOM_SLEEP,true,delay);
@@ -154,7 +154,7 @@ void enter_idle_state(uint16_t delay)
 
 void enter_run_state(uint16_t delay)
 {
-	Log(info,sys,"Enter to run state");
+	log_i("Enter to run state");
 	TaskBeep(200,1);
 
 	PWR_Enable(PMB_PS_ON ,true, delay);
@@ -191,13 +191,13 @@ void enter_run_state(uint16_t delay)
 }
 void enter_sleep_state(uint16_t delay)
 {
-	Log(info,sys,"Enter to sleep state.");
+	log_i("Enter to sleep state.");
 	TaskBeep(50,1);
 }
 void enter_dfu_state(uint16_t delay)
 {
 
-  Log(info,sys,"Enter to DFU state.");
+  log_i("Enter to DFU state.");
   TaskBeep(500,3);
 
   PWR_Enable(PMB_PS_ON , true , delay);
@@ -214,7 +214,7 @@ void enter_dfu_state(uint16_t delay)
 }
 //para, delay：reset low level signal duration (ms)
 void som_reboot(uint16_t delay){
-	  Log(info,som,"Jetson Nano rebooting...");
+	  log_i("Jetson Nano rebooting...");
 		PWR_Enable(SOM_RESET,true,0);
 		TaskBeep(100,1);
 		PWR_Enable(SOM_RESET,false,0);
@@ -252,7 +252,7 @@ void PWR_Enable(enum Device_t device,bool en,uint16_t delay){
 	case SOM_RESET: 	{HAL_GPIO_WritePin(SOM_SYS_RESET_GPIO_Port,		SOM_SYS_RESET_Pin, 		!en);			}break;
 	case SOM_SLEEP:  	{HAL_GPIO_WritePin(SOM_SLEEP_WAKE_GPIO_Port,	SOM_SLEEP_WAKE_Pin,		!en);			}break;
 	case PMB_PS_ON:  	{HAL_GPIO_WritePin(PMB_PS_ON_GPIO_Port,			PMB_PS_ON_Pin, 			en);			}break;
-	default:			{Log(error,sys,"PWR_Enable device parameter is invalid.");									}break;
+	default:			{log_e("PWR_Enable device parameter is invalid.");									}break;
 	}
 	osDelay(delay);
 }
@@ -288,7 +288,7 @@ bool PWR_Status(enum Device_t device){
 	case SOM_RESET:  	{sta = !HAL_GPIO_ReadPin(SOM_SYS_RESET_GPIO_Port,SOM_SYS_RESET_Pin);			}break;
 	case SOM_SLEEP:  	{sta = !HAL_GPIO_ReadPin(SOM_SLEEP_WAKE_GPIO_Port,SOM_SLEEP_WAKE_Pin);			}break;
 	case PMB_PS_ON:  	{sta = HAL_GPIO_ReadPin(PMB_PS_ON_GPIO_Port,PMB_PS_ON_Pin);						}break;
-	default:			{Log(error,sys,"PWR_Status device parameter is invalid.");							}break;
+	default:			{log_e("PWR_Status device parameter is invalid.");							}break;
     }
     return sta;
 }
diff --git a/Core/Src/stm32f1xx_it.c b/Core/Src/stm32f1xx_it.c
index ae9e931..c6f93e9 100644
--- a/Core/Src/stm32f1xx_it.c
+++ b/Core/Src/stm32f1xx_it.c
@@ -91,7 +91,7 @@ void NMI_Handler(void)
 void HardFault_Handler(void)
 {
   /* USER CODE BEGIN HardFault_IRQn 0 */
-	Log(fatal,sys,"HardFault_Handler");
+	log_e("HardFault_Handler");
   /* USER CODE END HardFault_IRQn 0 */
   while (1)
   {
@@ -106,7 +106,7 @@ void HardFault_Handler(void)
 void MemManage_Handler(void)
 {
   /* USER CODE BEGIN MemoryManagement_IRQn 0 */
-	Log(fatal,sys,"MemManage_Handler");
+	log_e("MemManage_Handler");
   /* USER CODE END MemoryManagement_IRQn 0 */
   while (1)
   {
@@ -121,7 +121,7 @@ void MemManage_Handler(void)
 void BusFault_Handler(void)
 {
   /* USER CODE BEGIN BusFault_IRQn 0 */
-	Log(fatal,sys,"BusFault_Handler");
+	log_e("BusFault_Handler");
   /* USER CODE END BusFault_IRQn 0 */
   while (1)
   {
@@ -136,7 +136,7 @@ void BusFault_Handler(void)
 void UsageFault_Handler(void)
 {
   /* USER CODE BEGIN UsageFault_IRQn 0 */
-	Log(fatal,sys,"UsageFault_Handler");
+	log_e("UsageFault_Handler");
   /* USER CODE END UsageFault_IRQn 0 */
   while (1)
   {
diff --git a/Middlewares/EasyLogger b/Middlewares/EasyLogger
index 12a12fe..056e521 160000
--- a/Middlewares/EasyLogger
+++ b/Middlewares/EasyLogger
@@ -1 +1 @@
-Subproject commit 12a12fe37d47d26f7c7f1d00dfea8a3dc04162f4
+Subproject commit 056e521b20f62af5a009c4c154248199b4588941
diff --git a/Middlewares/Log/log.c b/Middlewares/Log/log.c
deleted file mode 100644
index f390a60..0000000
--- a/Middlewares/Log/log.c
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * @Description: 
- * @Date: 2020-12-22 18:27:24
- * @LastEditors: CK.Zh
- * @LastEditTime: 2021-01-07 17:54:00
- * @FilePath: \NaviKit_stm32\Middlewares\Log\log.c
- */
-/*
- * log.c
- *
- *  Created on: Dec 16, 2020
- *      Author: bookshiyi
- */
-#include "log.h"
-
-static bool mutex =false;
-
-void Log(LogLevel_t level,LogPositon_t positon,char *format,...)
-{
-	if(mutex){
-		unsigned char time_out = 100;
-		while(mutex && time_out--){//100ms timout for multi-thread use log function
-			osDelay(1);
-		}
-	}
-
-	if(!mutex){
-		mutex = true;
-
-		switch(level){
-			case trace:  {	printf("[Trace] ") ;				}break;
-			case debug:  {	printf("[Debug] ") ;				}break;
-			case info:   {	printf("[Info ] ") ;				}break;
-			case warning:{	printf("[Warn ] ") ;				}break;
-			case error:	 {	printf("[Error] ") ;				}break;
-			case fatal:  {	printf("[Fatal] ") ;				}break;
-			default:	 {	printf("[Undefined Level] ") ;		}break;
-		}
-		printf("%10.3f | ",osKernelGetTickCount()/1000.0);
-		switch (positon)
-		{
-			case sys:{	printf("SYS: ") ;				}break;
-			case som:{	printf("SOM: ") ;				}break;
-			case pmb:{	printf("PMB: ") ;				}break;
-			default: {	printf("Undefined Position: ") ;}break;
-		}
-//	        va_list args;
-//	        va_start( args, format );
-//			print(0, format, args );
-
-		va_list ap;
-		va_start(ap, format);
-		vprintf(format, ap);
-		va_end(ap);
-
-		printf("\n") ;
-			
-		mutex = false;
-	}
-}
-
diff --git a/Middlewares/Log/log.h b/Middlewares/Log/log.h
deleted file mode 100644
index 3a8ffce..0000000
--- a/Middlewares/Log/log.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * @Description: 
- * @Date: 2020-12-22 18:27:24
- * @LastEditors: CK.Zh
- * @LastEditTime: 2021-01-07 17:50:39
- * @FilePath: \NaviKit_stm32\Middlewares\Log\log.h
- */
-/*
- * log.h
- *
- *  Created on: Dec 16, 2020
- *      Author: bookshiyi
- */
-
-#ifndef LOG_LOG_H_
-#define LOG_LOG_H_
-
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdbool.h>
-
-typedef enum {
-	trace = 0,
-	debug = 1,
-	info = 2,
-	warning = 3,
-	error = 4,
-	fatal =5
-}LogLevel_t;
-
-typedef enum {
-	sys = 0,//system:board device and ec device
-	som = 1,//system on module: jetson nano
-	pmb = 2,//power manage board
-}LogPositon_t;
-
-void Log(LogLevel_t level,LogPositon_t positon,char *format, ...);
-#endif /* LOG_LOG_H_ */