diff --git a/MCU/MCU_REAL_FINAL/block.c b/MCU/MCU_REAL_FINAL/block.c
index eab30c2..334dfd3 100644
--- a/MCU/MCU_REAL_FINAL/block.c
+++ b/MCU/MCU_REAL_FINAL/block.c
@@ -4,6 +4,7 @@
 #include <reg52.h>
 #include "delay.h"
 #include "eeprom.h"
+#include <stdlib.h>
 
 extern unsigned int bestScore[];
 char base[MAX_X][MAX_Y] = {0}; //x*y	//0为空 1为下落完成 2为正在下落
@@ -14,6 +15,7 @@ enum GS blockGameStatus = __idle;
 void blockInit()
 {
   score = 0;
+	srand((unsigned)TL0);
   blockGameStatus = start;
 }
 
@@ -53,7 +55,7 @@ void genPiece()
 
   char i, j;
   //需要一点随机性
-  int random = TH0 % 16;
+  int random = rand() % 100;
 
 
   if(blockGameStatus == over)
@@ -67,56 +69,56 @@ void genPiece()
         return;
 
   //当两个方块的情况
-  if(random == 0)
+  if(random >= 0 && random <= 6)
     {
       base[4][9] = 2;
     }
 
   //当两个方块的情况
-  if(random == 1 || random == 2)
+  if(random >= 7 && random <= 15)
     {
       base[4][9] = 2;							//
       base[4][10] = 2;						//
     }
-  else if(random == 3)
+  else if(random >= 16 && random <= 22)
     {
       base[3][9] = 2;						////
       base[4][9] = 2;
     }
 
   //当三个方块的情况
-  else if(random == 4 || random == 5)
+  else if(random >= 23 && random <= 32)
     {
 
       base[4][11] = 2;
       base[4][10] = 2;
       base[4][9] = 2;
     }
-  else if(random == 6)
+  else if(random >= 32 && random <= 38)
     {
       base[3][9] = 2;
       base[4][9] = 2;
       base[5][9] = 2;
     }
-  else if(random == 7)
+  else if(random >= 39 && random <= 47)
     {
       base[3][10] = 2;
       base[3][9] = 2;
       base[4][9] = 2;
     }
-  else if (random == 8)
+  else if (random >= 48 && random <= 55)
     {
       base[4][10] = 2;
       base[3][9] = 2;
       base[4][9] = 2;
     }
-	 else if (random == 9)
+	 else if (random >= 56 && random <= 63)
     {
       base[4][9] = 2;
       base[3][10] = 2;
       base[4][10] = 2;
     }
-		else if (random == 10)
+		else if (random >= 64 && random <= 69)
     {
       base[3][9] = 2;
       base[3][10] = 2;
@@ -124,35 +126,35 @@ void genPiece()
     }
 
 //当四个方块的情况
-  else if(random == 11)
+  else if(random >= 70 && random <= 79)
     {
       base[3][10] = 2;
       base[4][10] = 2;
       base[3][9] = 2;
       base[4][9] = 2;
     }
-	 else if(random == 12)
+	 else if(random >= 80 && random <= 84)
     {
       base[3][10] = 2;
       base[4][10] = 2;
       base[3][9] = 2;
       base[4][11] = 2;
     }
-		else if(random == 13)
+		else if(random >= 85 && random <= 89)
     {
       base[3][10] = 2;
       base[4][10] = 2;
       base[3][11] = 2;
       base[4][9] = 2;
     }
-		else if(random == 14)
+		else if(random >= 90 && random <= 94)
     {
       base[3][10] = 2;
       base[4][10] = 2;
       base[4][9] = 2;
       base[5][9] = 2;
     }
-		else if(random == 15)
+		else if(random >= 95 && random <= 99)
     {
       base[3][10] = 2;
       base[4][10] = 2;
diff --git a/MCU/MCU_REAL_FINAL/main.c b/MCU/MCU_REAL_FINAL/main.c
index 58f8b29..95d2270 100644
--- a/MCU/MCU_REAL_FINAL/main.c
+++ b/MCU/MCU_REAL_FINAL/main.c
@@ -3,7 +3,7 @@
 
 //#define WIPE_BEST
 
-#define RELOAD (65535-9216)		//定时器填充值(1ms)
+#define RELOAD (65535-8535)		//定时器填充值(1ms)
 unsigned char TH, TL;
 
 extern Menu *NOW;							//菜单指针