h_9_11.asm.svn-base

单片机硬件实验代码

         ORG      0000H
         SJMP     START
         
  START: MOV      R6,#01H
  
  FLASH: MOV      A,R6
         MOV      R2,A
           
         MOV      R0,#30H
         MOV      DPTR,#TABLE
         MOV      R7,#8
 LOPFLA: MOV      A,R2  
         MOV      P2,A
         MOV      A,@R0
         MOVC     A,@A+DPTR
         MOV      P1,A
         
         MOV      R3,#0
         DJNZ     R3,$
         
         MOV      P1,#0FFH
         
         MOV      A,R2
         RL       A
         MOV      R2,A
         INC      R0
         DJNZ     R7,LOPFLA
         ACALL    DELAY
         MOV      A,R6
         RL       A
         MOV      R6,A
         SJMP     FLASH
         
 TABLE:  DB       0C0H,0F9H,0A4H,0B0H,99H
         DB       92H,82H,0F8H,80H,90H,88H
         DB       83H,0C6H,0A1H,86H,8EH
         
  ;1s延时       
 DELAY:  MOV       R5,#200
    _B:  MOV       R4,#250
         NOP 
         NOP
         NOP
         NOP
         DJNZ      R4,$
         DJNZ      R5,_B
         RET
         
         END