[求助]简易电压表求帮忙。。

LED_0 EQU 30H    
LED_1 EQU 31H
LED_2 EQU 32H         
ADC EQU 35H       
CLOCK BIT P2.4   
ST BIT P2.5
EOC BIT P2.6
OE BIT P2.7
   ORG 00H     
   SJMP START     
   ORG 0BH 
   LJMP INT_T0     
START: MOV LED_0, #00H
       MOV LED_1, #00H
       MOV LED_2, #00H
       MOV DPTR, #TABLE     
       MOV TMOD, #02H     
       MOV TH0, #4CH     
       MOV TL0, #00H
       MOV IE, #82H
       SETB TR0       
WAIT: CLR ST
      SETB ST
      CLR ST 
      JNB EOC, $     
      SETB OE      
      MOV ADC, P1    
      CLR OE 
      MOV A,ADC
      MOV B,#100
      DIV AB 
      MOV LED_2, A      
      MOV A, B
      MOV B, #10
      DIV AB      
      MOV LED_1, A
      MOV LED_0, B   
      LCALL DISP     
      SJMP WAIT
INT_T0: CPL  CLOCK     
      RETI
DISP: MOV A, LED_0      
      MOVC A, @A+DPTR
      CLR P2.3
      MOV P0, A
      LCALL DELAY       
      SETB P2.3        
      MOV A, LED_1      
      MOVC A,@A+DPTR     
      CLR P2.2 
      MOV P0, A      
      LCALL DELAY
      SETB P2.2
      MOV A, LED_2
      MOVC A, @A+DPTR
      CLR P2.1             
      MOV P0, A
      LCALL DELAY
      SETB P2.1
      RET
DELAY: MOV R6, #10       
D1:    MOV R7, #250       
      DJNZ R7, $        
      DJNZ R6, D1
      RET
TABLE: DB 3FH, 06H, 5BH, 4FH, 66H     
       DB 6DH, 7DH, 07H, 7FH, 6FH
       DB 40H
      END

这是硬件图跟程序代码。。求大神指导，为什么运行之后是乱码。。。

原理图.png (34.79 KB, 下载次数: 87)

下载附件

2012-3-23 17:51 上传