diff --git a/common/elab_export.c b/common/elab_export.c
index 65299f30e8c188479be6faabf125e1a417ed375c..a6fae1c39828b007b4bbc6887bc92bb2f59b299a 100644
--- a/common/elab_export.c
+++ b/common/elab_export.c
@@ -135,10 +135,10 @@ static void signal_handler(int sig)
 #endif
 
 /**
-  * @brief  eLab startup function.
+  * @brief  module init function.
   * @retval None
   */
-void elab_run(void)
+void module_init(void)
 {
 #if defined(__linux__) || defined(_WIN32)
     signal(SIGINT, signal_handler);                 /* Ctrl + C*/
@@ -154,7 +154,6 @@ void elab_run(void)
     /* Start polling function in metal eLab, or start the RTOS kernel in RTOS 
        eLab. */
     _get_init_export_table();
-    _get_poll_export_table();
 #if (ELAB_RTOS_CMSIS_OS_EN != 0 || ELAB_RTOS_BASIC_OS_EN != 0)
     osKernelInitialize();
 #endif
@@ -170,16 +169,10 @@ void elab_run(void)
     eos_run();
 #else
     /* Initialize all module in eLab. */
-    for (uint8_t level = 0; level < export_level_max; level ++)
+    for (uint8_t level = 0; level <= export_level_max; level ++)
     {
         _init_func_execute(level);
     }
-
-    /* Start polling function in metal eLab. */
-    while (1)
-    {
-        _poll_func_execute();
-    }
 #endif
 }
 
diff --git a/common/elab_export.h b/common/elab_export.h
index 00485be348613f9109a9bd260b50f780dc0e39be..512694e61cbf3869ceb513dcbc5ea888594574cf 100644
--- a/common/elab_export.h
+++ b/common/elab_export.h
@@ -25,9 +25,9 @@ enum elab_export_level
     EXPORT_POLL                         = -2,
     EXPORT_UNIT_TEST                    = -1,
     EXPORT_LEVEL_BSP                    = 0,
-    EXPORT_LEVEL_HW_INDEPNEDENT         = 0,
-    EXPORT_DRVIVER                      = 1,
-    EXPORT_MIDWARE                      = 2,
+    EXPORT_LEVEL_HW_INDEPENDENT         = 0,
+    EXPORT_DRIVER                       = 1,
+    EXPORT_MIDDLEWARE                   = 2,
     EXPORT_DEVICE                       = 3,
     EXPORT_APP                          = 4,
     EXPORT_USER                         = 5,
@@ -59,7 +59,7 @@ typedef struct elab_export
 
 /* private function --------------------------------------------------------- */
 void elab_unit_test(void);
-void elab_run(void);
+void module_init(void);
 
 /* public export ------------------------------------------------------------ */
 /**
diff --git a/examples/stm32g070/user/app/eos_led_reactor.c b/examples/stm32g070/user/app/eos_led_reactor.c
index 98f8b971818a4708e064951d20ae589c9fb141f0..042a8d77abe9612add3758cbe02bae66cee2358d 100644
--- a/examples/stm32g070/user/app/eos_led_reactor.c
+++ b/examples/stm32g070/user/app/eos_led_reactor.c
@@ -4,6 +4,7 @@
 #include "event_def.h"
 #include "stm32g0xx_hal.h"
 #include <stdio.h>
+#include "elab_export.h"
 
 /* data structure ----------------------------------------------------------- */
 typedef struct eos_reactor_led_tag {
@@ -32,12 +33,14 @@ void eos_reactor_led_init(void)
     eos_event_pub_period(Event_Time_1000ms, 1000);
 #endif
 }
+INIT_EXPORT(eos_reactor_led_init, EXPORT_APP);
 
 /* static state function ---------------------------------------------------- */
 static void led_e_handler(eos_reactor_led_t * const me, eos_event_t const * const e)
 {
     if (e->topic == Event_Time_1000ms) {
         HAL_GPIO_TogglePin(GPIOC, GPIO_PIN_9);
+        printf("led status: %d\r\n", me->status);
         me->status = (me->status == 0) ? 1 : 0;
     }
 }
diff --git a/examples/stm32g070/user/app/eos_led_sm.c b/examples/stm32g070/user/app/eos_led_sm.c
index 87f6362103162faf422b752d14a50df33188aef5..683e7346df3cfaa182c17a770064e990ebec897b 100644
--- a/examples/stm32g070/user/app/eos_led_sm.c
+++ b/examples/stm32g070/user/app/eos_led_sm.c
@@ -4,7 +4,7 @@
 #include "event_def.h"
 #include "stm32g070xx.h"
 #include "stm32g0xx_hal.h"
-#include <stdio.h>
+#include "elab_export.h"
 
 #if (EOS_USE_SM_MODE != 0)
 /* data structure ----------------------------------------------------------- */
@@ -29,6 +29,7 @@ void eos_sm_led_init(void)
 
     sm_led.status = 0;
 }
+INIT_EXPORT(eos_sm_led_init, EXPORT_APP);
 
 /* static state function ---------------------------------------------------- */
 static eos_ret_t state_init(eos_sm_led_t * const me, eos_event_t const * const e)
diff --git a/examples/stm32g070/user/app/main.c b/examples/stm32g070/user/app/main.c
index bb699c7a7a5f9784988b9e5801b1ab2346b13688..41f7457111188f8694c9dbcd24877b04abb330f4 100644
--- a/examples/stm32g070/user/app/main.c
+++ b/examples/stm32g070/user/app/main.c
@@ -1,28 +1,27 @@
 /* include ------------------------------------------------------------------ */
 #include "eventos.h"                                // EventOS Nano头文件
 #include "event_def.h"                              // 事件主题的枚举
-#include "eos_led.h"                                // LED灯闪烁状态机
-#include "bsp.h"
+#include "elab_export.h"
 
 /* define ------------------------------------------------------------------- */
 #if (EOS_USE_PUB_SUB != 0)
 static eos_u32_t eos_sub_table[Event_Max];          // 订阅表数据空间
 #endif
 
-/* main function ------------------------------------------------------------ */
-int main(void)
+void eos_module_init(void)
 {
-    bsp_init();
-
     eos_init();                                     // EventOS初始化
+
 #if (EOS_USE_PUB_SUB != 0)
     eos_sub_init(eos_sub_table, Event_Max);         // 订阅表初始化
 #endif
+}
+INIT_EXPORT(eos_module_init, EXPORT_MIDDLEWARE);
 
-#if (EOS_USE_SM_MODE != 0)
-    eos_sm_led_init();                              // LED状态机初始化
-#endif
-    eos_reactor_led_init();
+/* main function ------------------------------------------------------------ */
+int main(void)
+{
+    module_init();                                  // 各模块初始化
 
     eos_run();                                      // EventOS启动
 
diff --git a/examples/stm32g070/user/bsp/bsp.c b/examples/stm32g070/user/bsp/bsp.c
index 1f3083e667215271941e422b4bbffe0330f20c34..e21d8fdbc06c2bfb532cab35b7057fee472f54f9 100644
--- a/examples/stm32g070/user/bsp/bsp.c
+++ b/examples/stm32g070/user/bsp/bsp.c
@@ -7,6 +7,7 @@
 /* includes ----------------------------------------------------------------- */
 #include "bsp.h"
 #include "stm32g0xx_hal.h"
+#include "elab_export.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -45,6 +46,8 @@ void bsp_init(void)
                       GPIO_PIN_RESET);
 }
 
+INIT_EXPORT(bsp_init, EXPORT_LEVEL_BSP);
+
 /* private functions -------------------------------------------------------- */
 /**
   * @brief System Clock Configuration
diff --git a/examples/stm32g070/user/bsp/elab_uart_debug.c b/examples/stm32g070/user/bsp/elab_uart_debug.c
index d45c6c94577b9eb46d784d9525ba6fecf1b2c3cc..2a182a01e4c09207ce32759ddb98d7da41b26599 100644
--- a/examples/stm32g070/user/bsp/elab_uart_debug.c
+++ b/examples/stm32g070/user/bsp/elab_uart_debug.c
@@ -4,8 +4,10 @@
  */
 
 /* includes ----------------------------------------------------------------- */
+#include <stdio.h>
 #include "elab_common.h"
 #include "elib_queue.h"
+#include "elab_export.h"
 #include "stm32g0xx_hal.h"
 
 /* private config ----------------------------------------------------------- */
@@ -75,6 +77,12 @@ void elab_debug_uart_init(uint32_t baudrate)
     elib_queue_init(&queue_tx, buffer_tx, ELAB_DEBUG_UART_BUFFER_TX);
 }
 
+void debug_uart_init(void)
+{
+    elab_debug_uart_init(115200);
+}
+INIT_EXPORT(debug_uart_init, EXPORT_DRIVER);
+
 /**
   * @brief  Send data to the debug uart.
   * @param  buffer  this pointer