diff --git a/usrc/service/app_core.cpp b/usrc/service/app_core.cpp
index 69110b0..091a5f5 100644
--- a/usrc/service/app_core.cpp
+++ b/usrc/service/app_core.cpp
@@ -99,13 +99,12 @@ void AppCore::initialize() {
 
   //ʹÄܵç»ú
   AppHardware::ins()->MOTO1.enable(1);
-  osDelay(1000);
+  osDelay(500);
   AppHardware::ins()->MOTO2.enable(1);
-  osDelay(1000);
+  osDelay(500);
   AppHardware::ins()->MOTO3.enable(1);
-  osDelay(1000);
+  osDelay(500);
   AppHardware::ins()->MOTO4.enable(1);
-  osDelay(1000);
 
 
   ID* id = &AppHardware::ins()->id;