diff --git a/STS/Core/Src/yunhorn_sts_process.c b/STS/Core/Src/yunhorn_sts_process.c
index 11253fa..ecc98e4 100644
--- a/STS/Core/Src/yunhorn_sts_process.c
+++ b/STS/Core/Src/yunhorn_sts_process.c
@@ -434,8 +434,8 @@ void STS_YunhornSTSEventP5_Process(void)
 	}
 #elif defined(L8)
 	//STS_TOF_VL53L8X_Process();
-	//MX_TOF_Process();
-	MX_TOF_Ranging_Process();
+	MX_TOF_Process();
+	//MX_TOF_Ranging_Process();
 #endif
 
 }
diff --git a/STS/TOF/App/app_tof.c b/STS/TOF/App/app_tof.c
index 0444d62..e07ff24 100644
--- a/STS/TOF/App/app_tof.c
+++ b/STS/TOF/App/app_tof.c
@@ -203,7 +203,7 @@ void STS_TOF_L8_Process(void)
 
 	      if (status == BSP_ERROR_NONE)
 	      {
-	        //print_result(&Result);
+	        print_result(&Result);
 	      }
 	    }
 	  }
@@ -276,7 +276,7 @@ static void MX_53L8A1_ThresholdDetection_Process(void)
   printf("-------------------------------------------\n\r");
   printf("please put a target between %d and %d millimeters from the sensor\n\r",
 		  LOW_THRESHOLD, HIGH_THRESHOLD);
-#if 0
+#if 1
   //while (1)
   {
     /* interrupt mode */