diff --git a/components/connectivity/qcloud-iot-explorer-sdk/port/TencentOS_tiny/HAL_OS_tencentos_tiny.c b/components/connectivity/qcloud-iot-explorer-sdk/port/TencentOS_tiny/HAL_OS_tencentos_tiny.c
index 5e607f6c..34404227 100644
--- a/components/connectivity/qcloud-iot-explorer-sdk/port/TencentOS_tiny/HAL_OS_tencentos_tiny.c
+++ b/components/connectivity/qcloud-iot-explorer-sdk/port/TencentOS_tiny/HAL_OS_tencentos_tiny.c
@@ -32,7 +32,6 @@ void HAL_SleepMs(_IN_ uint32_t ms)
   (void)tos_sleep_hmsm(0,0,0, ms);
 }
 
-
 void HAL_Printf(_IN_ const char *fmt, ...)
 {
     va_list args;
@@ -61,15 +60,14 @@ int HAL_Vsnprintf(_IN_ char *str, _IN_ const int len, _IN_ const char *format, v
     return vsnprintf(str, len, format, ap);
 }
 
-
 void *HAL_Malloc(_IN_ uint32_t size)
 {
-	return tos_mmheap_alloc(size);
+    return tos_mmheap_alloc(size);
 }
 
 void HAL_Free(_IN_ void *ptr)
 {
-	tos_mmheap_free(ptr);
+    tos_mmheap_free(ptr);
 }
 
 void *HAL_MutexCreate(void)
@@ -88,7 +86,7 @@ void *HAL_MutexCreate(void)
 
 void HAL_MutexDestroy(_IN_ void *mutex)
 {
-	k_err_t ret;
+    k_err_t ret;
 
     if (K_ERR_NONE != (ret = tos_mutex_destroy((k_mutex_t *)mutex))) {
         HAL_Printf("osal_mutex_destroy err, err:%d\n\r", ret);
@@ -108,24 +106,24 @@ void HAL_MutexLock(_IN_ void *mutex)
 
 int HAL_MutexTryLock(_IN_ void *mutex)
 {
-	k_err_t ret;
+    k_err_t ret;
 
-	if (K_ERR_NONE != (ret = tos_mutex_pend_timed((k_mutex_t *)mutex, 0))) {
-		HAL_Printf("osal_mutex_lock err, err:%d\n\r", ret);
-		return (int)ret;
-	}
+    if (K_ERR_NONE != (ret = tos_mutex_pend_timed((k_mutex_t *)mutex, 0))) {
+        HAL_Printf("osal_mutex_lock err, err:%d\n\r", ret);
+        return (int)ret;
+    }
 
-	return 0;
+    return 0;
 }
 
 
 void HAL_MutexUnlock(_IN_ void *mutex)
 {
-	k_err_t ret;
+    k_err_t ret;
 
-	if (K_ERR_NONE != (ret = tos_mutex_post((k_mutex_t *)mutex))) {
-		HAL_Printf("osal_mutex_unlock err, err:%d\n\r", ret);
-	}
+    if (K_ERR_NONE != (ret = tos_mutex_post((k_mutex_t *)mutex))) {
+        HAL_Printf("osal_mutex_unlock err, err:%d\n\r", ret);
+    }
 }
 
 #if defined(PLATFORM_HAS_CMSIS) && defined(AT_TCP_ENABLED)
@@ -135,53 +133,52 @@ void HAL_MutexUnlock(_IN_ void *mutex)
 */
 void * HAL_ThreadCreate(uint16_t stack_size, int priority, char * taskname,void *(*fn)(void*), void* arg)
 {
-	osThreadId thread_t = (osThreadId)HAL_Malloc(sizeof(osThreadId));
+    osThreadId thread_t = (osThreadId)HAL_Malloc(sizeof(osThreadId));
 
-	osThreadDef(taskname, (os_pthread)fn, (osPriority)priority, 0, stack_size);
-	thread_t = osThreadCreate(osThread(taskname), arg);
-	if(NULL == thread_t){
-		HAL_Printf("create thread fail\n\r");
-	}
+    osThreadDef(taskname, (os_pthread)fn, (osPriority)priority, 0, stack_size);
+    thread_t = osThreadCreate(osThread(taskname), arg);
+    if(NULL == thread_t){
+        HAL_Printf("create thread fail\n\r");
+    }
 
-	return (void *)thread_t;
+    return (void *)thread_t;
 }
 
 int HAL_ThreadDestroy(void* threadId)
 {
-	return osThreadTerminate(threadId);
+    return osThreadTerminate(threadId);
 }
 
 void *HAL_SemaphoreCreate(void)
 {
-	return (void *)osSemaphoreCreate(NULL, 1);
+    return (void *)osSemaphoreCreate(NULL, 1);
 }
 
 void HAL_SemaphoreDestroy(void *sem)
 {
-	osStatus ret;
+    osStatus ret;
 
-	ret = osSemaphoreDelete ((osSemaphoreId)sem);
-	if(osOK != ret)
-	{
-		HAL_Printf("HAL_SemaphoreDestroy err, err:%d\n\r",ret);
-	}
+    ret = osSemaphoreDelete ((osSemaphoreId)sem);
+    if(osOK != ret)
+    {
+        HAL_Printf("HAL_SemaphoreDestroy err, err:%d\n\r",ret);
+    }
 }
 
 void HAL_SemaphorePost(void *sem)
 {
-	osStatus ret;
+    osStatus ret;
 
-	ret = osSemaphoreRelease ((osSemaphoreId) sem);
+    ret = osSemaphoreRelease ((osSemaphoreId) sem);
 
-	if(osOK != ret)
-	{
-		HAL_Printf("HAL_SemaphorePost err, err:%d\n\r",ret);
-	}
+    if(osOK != ret)
+    {
+        HAL_Printf("HAL_SemaphorePost err, err:%d\n\r",ret);
+    }
 }
 
 int HAL_SemaphoreWait(void *sem, uint32_t timeout_ms)
 {
-	return osSemaphoreWait ((osSemaphoreId)sem, timeout_ms);
-
+    return osSemaphoreWait ((osSemaphoreId)sem, timeout_ms);
 }
 #endif