diff --git a/src/User/main.c b/src/User/main.c
index c2711ce..fec8e28 100644
--- a/src/User/main.c
+++ b/src/User/main.c
@@ -35,7 +35,7 @@ int main(void)
 	pmotor->en = 1;
 	pmotor->step_time = 0;
 	pmotor->state = acc;
-	pmotor->step = 5000;
+	pmotor->step = 2000;
 	TIM_Cmd(TIM2, ENABLE); //使能TIM2
     while (1)
     {