diff --git a/bsp/stm32f10x-HAL/drivers/board.c b/bsp/stm32f10x-HAL/drivers/board.c
index 61029214c15b23ecbb09bb9f266c1bd9a303e8b2..0c880d47462e4478e9c3d362f0a66679f97e3d11 100644
--- a/bsp/stm32f10x-HAL/drivers/board.c
+++ b/bsp/stm32f10x-HAL/drivers/board.c
@@ -49,37 +49,58 @@ void HAL_MspInit(void)
 
 void SystemClock_Config(void)
 {
-    rt_err_t result;
+    rt_err_t ret = RT_EOK;
     RCC_OscInitTypeDef RCC_OscInitStruct;
     RCC_ClkInitTypeDef RCC_ClkInitStruct;
-    /**Initializes the CPU, AHB and APB busses clocks
-      */
+    
+#if !defined(RT_USING_HSI)
+    /* Initializes the CPU, AHB and APB busses clocks */
     RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
-    RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+    RCC_OscInitStruct.HSEState       = RCC_HSE_ON;
     RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
-    RCC_OscInitStruct.HSIState = RCC_HSI_ON;
-    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
-    RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
-    RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
-    result = HAL_RCC_OscConfig(&RCC_OscInitStruct);
-    RT_ASSERT(result == HAL_OK);
-    /**Initializes the CPU, AHB and APB busses clocks
-      */
-    RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
-    RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
-    RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+    RCC_OscInitStruct.HSIState       = RCC_HSI_ON;
+    RCC_OscInitStruct.PLL.PLLState   = RCC_PLL_ON;
+    RCC_OscInitStruct.PLL.PLLSource  = RCC_PLLSOURCE_HSE;
+    RCC_OscInitStruct.PLL.PLLMUL     = RCC_PLL_MUL9;
+    ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
+    RT_ASSERT(ret == HAL_OK);
+    
+    /* Initializes the CPU, AHB and APB busses clocks */
+    RCC_ClkInitStruct.ClockType      = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | 
+                                       RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
+    RCC_ClkInitStruct.SYSCLKSource   = RCC_SYSCLKSOURCE_PLLCLK;
+    RCC_ClkInitStruct.AHBCLKDivider  = RCC_SYSCLK_DIV1;
     RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
     RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
-    result = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
-    RT_ASSERT(result == HAL_OK);
-    /**Configure the Systick interrupt time
-      */
+    ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
+    RT_ASSERT(ret == HAL_OK);
+    
     HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq() / RT_TICK_PER_SECOND);
-    /**Configure the Systick
-      */
     HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
-    /* SysTick_IRQn interrupt configuration */
     HAL_NVIC_SetPriority(SysTick_IRQn, 15, 0);
+#else
+    RCC_OscInitStruct.OscillatorType      = RCC_OSCILLATORTYPE_HSI;
+    RCC_OscInitStruct.HSIState            = RCC_HSI_ON;
+    RCC_OscInitStruct.HSICalibrationValue = 16;
+    RCC_OscInitStruct.PLL.PLLState        = RCC_PLL_ON;
+    RCC_OscInitStruct.PLL.PLLSource       = RCC_PLLSOURCE_HSI_DIV2;
+    RCC_OscInitStruct.PLL.PLLMUL          = RCC_PLL_MUL16;
+    ret = HAL_RCC_OscConfig(&RCC_OscInitStruct); 
+    RT_ASSERT(ret == HAL_OK);
+
+    RCC_ClkInitStruct.ClockType      = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK | 
+                                       RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
+    RCC_ClkInitStruct.SYSCLKSource   = RCC_SYSCLKSOURCE_PLLCLK;
+    RCC_ClkInitStruct.AHBCLKDivider  = RCC_SYSCLK_DIV1;
+    RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
+    RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+    ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2); 
+    RT_ASSERT(ret == HAL_OK);
+    
+    HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/RT_TICK_PER_SECOND);
+    HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
+    HAL_NVIC_SetPriority(SysTick_IRQn, 15, 0);
+#endif
 }
 
 /**
diff --git a/bsp/stm32f10x-HAL/drivers/stm32f1xx_hal_conf.h b/bsp/stm32f10x-HAL/drivers/stm32f1xx_hal_conf.h
index e50abfd1fc14abf582a2a5c308259e1504b71536..32be5f38d0f7f072346315651d5b584c4e29d943 100644
--- a/bsp/stm32f10x-HAL/drivers/stm32f1xx_hal_conf.h
+++ b/bsp/stm32f10x-HAL/drivers/stm32f1xx_hal_conf.h
@@ -103,7 +103,11 @@ extern "C" {
   *        This value is used by the RCC HAL module to compute the system frequency
   *        (when HSE is used as system clock source, directly or through the PLL).
   */
+#if !defined(RT_USING_HSI)
 #define HSE_VALUE ((unsigned int)RT_HSE_VALUE)
+#endif 
+  
+//#define HSE_VALUE ((unsigned int)RT_HSE_VALUE)
 
 #if !defined  (HSE_VALUE)
 #if defined(USE_STM3210C_EVAL)