diff --git a/vd960Loop/utilities/at32f421_freertos_demo/src/TaskLoop.c b/vd960Loop/utilities/at32f421_freertos_demo/src/TaskLoop.c
index 5af1aaa..480de0c 100644
--- a/vd960Loop/utilities/at32f421_freertos_demo/src/TaskLoop.c
+++ b/vd960Loop/utilities/at32f421_freertos_demo/src/TaskLoop.c
@@ -300,6 +300,11 @@ void TMR15_GLOBAL_IRQHandler(void)
                         unit->Hold_CNT = 0;
                         if (unit->loop_VD_FLAG) {
                             set_loops_relay_off(unit->loop_num);
+                            unit->loop_VD_FLAG  = 0;
+                            unit->loop_FLAG_OUT = 1;
+                            unit->LC_HOLD  = 0;
+                            unit->loop_ORG_CNT = 0;
+                            unit->loop_ORG_SUM = 0;
                         }
                     }
                 }