diff --git a/Demo_C/Demo/LED/LED.c b/Demo_C/Demo/LED/LED.c
index 3ff3e04..efd072d 100644
--- a/Demo_C/Demo/LED/LED.c
+++ b/Demo_C/Demo/LED/LED.c
@@ -50,21 +50,21 @@ int PrgTic
             {
                 case GREEN:
                     p_ta->hook_table.DisplayMsg(p_ta, "GREEN");
-                    pin = GREEN;
                     p_ta->output.duty[BLUE] = LIGHT_OFF;
                     p_ta->output.duty[pin] = LIGHT_MAX;
+                    pin = RED;
                     break;
                 case RED:
                     p_ta->hook_table.DisplayMsg(p_ta, "RED");
-                    pin = RED;
                     p_ta->output.duty[GREEN] = LIGHT_OFF;
                     p_ta->output.duty[pin] = LIGHT_MAX;
+                    pin = BLUE;
                     break;
                 case BLUE:
                     p_ta->hook_table.DisplayMsg(p_ta, "BLUE");
-                    pin = BLUE;
                     p_ta->output.duty[RED] = LIGHT_OFF;
                     p_ta->output.duty[pin] = LIGHT_MAX;
+                    pin = GREEN;
                     break;
                 default:
                     p_ta->hook_table.DisplayMsg(p_ta, NULL);