diff --git a/src/main/java/com/iflytop/gd/hardware/controller/StepMotorController.java b/src/main/java/com/iflytop/gd/hardware/controller/StepMotorController.java
index bce3187..44100d8 100644
--- a/src/main/java/com/iflytop/gd/hardware/controller/StepMotorController.java
+++ b/src/main/java/com/iflytop/gd/hardware/controller/StepMotorController.java
@@ -193,10 +193,7 @@ public class StepMotorController {
     public Integer readReg(
             @RequestParam DeviceStepMotorId deviceId,
             @RequestParam StepMotorRegIndex reg) {
-        Integer val = 5;
-        return val;
-//        return stepMotorService.readReg(deviceId, reg);
-
+        return stepMotorService.readReg(deviceId, reg);
     }
 
     @PostMapping("/reg")