diff --git a/src/W800_SDK_v1.00.10/Makefile b/src/W800_SDK_v1.00.10/Makefile
index c29304e..a279fe5 100644
--- a/src/W800_SDK_v1.00.10/Makefile
+++ b/src/W800_SDK_v1.00.10/Makefile
@@ -30,11 +30,12 @@ endif
 endif
 
 COMPONENTS_$(TARGET) =	\
-    $(TOP_DIR)/app/libuser$(LIB_EXT) \
-	$(TOP_DIR)/app/app_drivers/libappdrivers$(LIB_EXT) \
+    $(TOP_DIR)/app/libuser$(LIB_EXT)                    \
+	$(TOP_DIR)/app/app_drivers/libappdrivers$(LIB_EXT)  \
 	$(TOP_DIR)/app/persistency/libpersistency$(LIB_EXT) \
 	$(TOP_DIR)/app/translation/libtranslation$(LIB_EXT) \
-	$(TOP_DIR)/app/ble/libble$(LIB_EXT) \
+	$(TOP_DIR)/app/ble/libble$(LIB_EXT)                 \
+	$(TOP_DIR)/app/app_utils/libapputils$(LIB_EXT)             \
 	$(TOP_DIR)/lvgl/liblvgl$(LIB_EXT) 
 
 ifeq ($(USE_LIB), 0)
diff --git a/src/W800_SDK_v1.00.10/app/app_utils/Makefile b/src/W800_SDK_v1.00.10/app/app_utils/Makefile
new file mode 100644
index 0000000..5229aba
--- /dev/null
+++ b/src/W800_SDK_v1.00.10/app/app_utils/Makefile
@@ -0,0 +1,15 @@
+TOP_DIR = ../..
+sinclude $(TOP_DIR)/tools/w800/conf.mk
+
+ifndef PDIR
+GEN_LIBS = libapputils$(LIB_EXT)
+endif
+
+#DEFINES +=
+
+sinclude $(TOP_DIR)/tools/w800/rules.mk
+
+INCLUDES := $(INCLUDES) -I $(PDIR)include
+
+PDIR := ../$(PDIR)
+sinclude $(PDIR)Makefile
\ No newline at end of file
diff --git a/src/W800_SDK_v1.00.10/app/app_utils/app_utils.c b/src/W800_SDK_v1.00.10/app/app_utils/app_utils.c
new file mode 100644
index 0000000..158317a
--- /dev/null
+++ b/src/W800_SDK_v1.00.10/app/app_utils/app_utils.c
@@ -0,0 +1,61 @@
+#include "app_utils.h"
+#include "app_log.h"
+
+static uint32_t _elapsed_ms = 0;
+
+void us_delay(uint32_t us)
+{
+    struct tls_timer_cfg timer_config = 
+	{
+		.is_repeat = false,
+		.unit = TLS_TIMER_UNIT_US,
+		.timeout = 0xFFFFFFFF,
+	};
+
+	uint8_t timer_id = tls_timer_create(&timer_config);
+
+    if(WM_TIMER_ID_INVALID == timer_id)
+    {
+        APP_LOG_ERROR("Failed to create timer");
+        return;
+    }
+
+	tls_timer_start(timer_id);
+
+    // Perform a blocking delay
+    while(tls_timer_read(timer_id) < us);
+
+    // Don't forget to free the used timer
+    tls_timer_destroy(timer_id);
+}
+
+void ms_delay(uint32_t ms)
+{
+    struct tls_timer_cfg timer_config = 
+	{
+		.is_repeat = false,
+		.unit = TLS_TIMER_UNIT_MS,
+		.timeout = 0xFFFFFFFF,
+	};
+
+	uint8_t timer_id = tls_timer_create(&timer_config);
+
+    if(WM_TIMER_ID_INVALID == timer_id)
+    {
+        APP_LOG_ERROR("Failed to create timer");
+        return;
+    }
+
+	tls_timer_start(timer_id);
+
+    // Perform a blocking delay
+    while(tls_timer_read(timer_id) < ms);
+
+    // Don't forget to free the used timer
+    tls_timer_destroy(timer_id);
+}
+
+uint32_t elapsed_ms(void)
+{
+    return _elapsed_ms;
+}
\ No newline at end of file
diff --git a/src/W800_SDK_v1.00.10/app/app_utils/app_utils.h b/src/W800_SDK_v1.00.10/app/app_utils/app_utils.h
new file mode 100644
index 0000000..08b8144
--- /dev/null
+++ b/src/W800_SDK_v1.00.10/app/app_utils/app_utils.h
@@ -0,0 +1,27 @@
+#ifndef APP_UTILS_H
+#define APP_UTILS_H
+
+#include "wm_include.h"
+
+/**
+ * @brief Wait for the specified time in micro seconds. This is a blocking function !
+ * 
+ * @param us the specified time to wait in µs.
+ */
+void us_delay(uint32_t us);
+
+/**
+ * @brief Wait for the specified time in milli seconds. This is a blocking function !
+ * 
+ * @param ms the specified time to wait in ms.
+ */
+void ms_delay(uint32_t ms);
+
+/**
+ * @brief Returns the current milli seconds count elapsed since the start of the program. 
+ * 
+ * @return uint32_t the elapsed time in ms
+ */
+uint32_t elapsed_ms(void);
+
+#endif //APP_UTILS_H
\ No newline at end of file
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 8de80bf..252b03d 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
@@ -70,7 +70,7 @@
 
 #define configUSE_PREEMPTION		1	
 #define configUSE_IDLE_HOOK			1	//ʹ�ÿ��й���
-#define configUSE_TICK_HOOK			1	
+#define configUSE_TICK_HOOK			0	
 
 #define configCPU_CLOCK_HZ			( ( unsigned long ) 40000000 )	/* =12.0MHz xtal multiplied by 5 using the PLL. *///???????????????
 
diff --git a/src/W800_SDK_v1.00.10/tools/w800/inc.mk b/src/W800_SDK_v1.00.10/tools/w800/inc.mk
index 2791b23..96897e0 100644
--- a/src/W800_SDK_v1.00.10/tools/w800/inc.mk
+++ b/src/W800_SDK_v1.00.10/tools/w800/inc.mk
@@ -51,6 +51,7 @@ INCLUDES += -I $(TOP_DIR)/app/app_drivers/i2c
 INCLUDES += -I $(TOP_DIR)/app/app_drivers/watch_peripherals
 INCLUDES += -I $(TOP_DIR)/app/app_include
 INCLUDES += -I $(TOP_DIR)/app/ble
+INCLUDES += -I $(TOP_DIR)/app/app_utils
 INCLUDES += -I $(TOP_DIR)/app/gfx
 INCLUDES += -I $(TOP_DIR)/app/persistency
 INCLUDES += -I $(TOP_DIR)/app/translation