z.asm

七彩LED控制器和原理图

ORG 0000H
         MOV R1,#00H
         MOV DPTR,#TAB
   START:MOV A,R1
         MOVC A,@A+DPTR
         CJNE A,#0D3H,DISP
         MOV R1,#00H
         SJMP START
    DISP:MOV P2,A
         INC R1
         LCALL DELAY
         SJMP START

   DELAY:MOV R5, #02
     K1: MOV R6, #250
     K2: MOV R7, #250
     K3: NOP
         NOP
         DJNZ R7, K3
         DJNZ R6, K2
         DJNZ R5, K1
         RET

     TAB:DB 0E7H,0C3H,81H,00H,0FFH
         DB 7FH,3FH,1FH,0FH,07H,03H,01H,00H,0FFH
         DB 55H,0AAH,55H,0AAH,0FFH,00H,0FFH,00H,0FFH,0D3H