diff --git a/src/W800_SDK_v1.00.10/src/os/rtos/include/FreeRTOSConfig.h b/src/W800_SDK_v1.00.10/src/os/rtos/include/FreeRTOSConfig.h
index f8dbe86..8de80bf 100644
--- a/src/W800_SDK_v1.00.10/src/os/rtos/include/FreeRTOSConfig.h
+++ b/src/W800_SDK_v1.00.10/src/os/rtos/include/FreeRTOSConfig.h
@@ -77,7 +77,7 @@
 #define configTICK_RATE_HZ			( ( portTickType ) 500u )	
 #define configMAX_PRIORITIES		(63)
 #define configMINIMAL_STACK_SIZE	( ( unsigned short ) 256 )	
-#define configTOTAL_HEAP_SIZE		( ( size_t ) 12 * 1024 )	
+#define configTOTAL_HEAP_SIZE		( ( size_t ) 4 * 1024 )	
 #define configMAX_TASK_NAME_LEN		( 10 )	//�����������������������
 #define configUSE_TRACE_FACILITY	1		
 #define configUSE_16_BIT_TICKS		0