diff --git a/guohuafengdian/Paint----6(1)/Paint_(1)/Core/Src/fsm.c b/guohuafengdian/Paint----6(1)/Paint_(1)/Core/Src/fsm.c
index c6a8f5a..4637c08 100644
--- a/guohuafengdian/Paint----6(1)/Paint_(1)/Core/Src/fsm.c
+++ b/guohuafengdian/Paint----6(1)/Paint_(1)/Core/Src/fsm.c
@@ -1737,16 +1737,17 @@ void PushRodControl()
 }
 
 
-
 int Derust_Flag = 3000;
 int Derust_Count = 0;
 int Last_Derust_Flag = 0;
+uint8_t key_state = 0;
 
 void GrinderControl()
 {
 	switch(Derust_Flag)
 	{
 		case -1000:
+			key_state = 1;
 			GF_BSP_GPIO_SetIO(0,GPIO_PIN_RESET);
 			Derust_Count++;
 			if(Derust_Count>=100)
@@ -1756,13 +1757,21 @@ void GrinderControl()
 			}
 			break;
 		case 0:
-			GF_BSP_GPIO_SetIO(0,GPIO_PIN_RESET);
-			Derust_Count++;
-			if(Derust_Count>=100)
+			if(key_state == 1)
 			{
-				GF_BSP_GPIO_SetIO(0,GPIO_PIN_SET);
-				Derust_Flag=2000;
+				GF_BSP_GPIO_SetIO(0,GPIO_PIN_RESET);
+				Derust_Count++;
+				if(Derust_Count>=100)
+				{
+					GF_BSP_GPIO_SetIO(0,GPIO_PIN_SET);
+					key_state = 0;
+					Derust_Flag=2000;
+				}
 			}
+			else{
+
+			}
+
 			break;
 		case 1000: