diff --git a/api/i_xyrobot_ctrl_module.hpp b/api/i_xyrobot_ctrl_module.hpp
index e3357ec..062b103 100644
--- a/api/i_xyrobot_ctrl_module.hpp
+++ b/api/i_xyrobot_ctrl_module.hpp
@@ -76,15 +76,16 @@ class I_XYRobotCtrlModule {
   } warning_limit_param_t;
 
   typedef struct {
+    bool         configInited;
     base_param_t basecfg;
   } flash_config_t;
 
 #pragma pack()
 
  public:
-  virtual int32_t move_to(int32_t x, int32_t y, int32_t speed, action_cb_status_t status_cb)                 = 0;
-  virtual int32_t move_by(int32_t dx, int32_t dy, int32_t speed, action_cb_status_t status_cb)               = 0;
-  virtual int32_t move_by_no_limit(int32_t dx, int32_t dy, int32_t speed, action_cb_status_t status_cb)      = 0;
+  virtual int32_t move_to(int32_t x, int32_t y, int32_t speed, action_cb_status_t status_cb)             = 0;
+  virtual int32_t move_by(int32_t dx, int32_t dy, int32_t speed, action_cb_status_t status_cb)           = 0;
+  virtual int32_t move_by_no_limit(int32_t dx, int32_t dy, int32_t speed, action_cb_status_t status_cb)  = 0;
   virtual int32_t move_to_zero(action_cb_status_t status_cb)                                             = 0;
   virtual int32_t move_to_zero_with_calibrate(int32_t nowx, int32_t nowxy, action_cb_status_t status_cb) = 0;