zxw.asm

这程序是实现单片机与PC机的通信程序 可供大家参考或学习！

ORG 00H
   LJMP BEGIN
 BEGIN:
   TAB: DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH
   MOV P2,#0EEH
 D:CLR A
   MOV R0,A
   MOV DPTR,#0000H 
 L:MOV DPTR,#TAB
   MOV A,R0
   MOVC A,@A+DPTR
   MOV P0,A
   MOV R5,#100
   LCALL DELAY
   INC R0
   CJNE R0,#10,I
   LJMP D
 I:LJMP L 
 DELAY:
   MOV R6,#50
 H:MOV R7,#100
   DJNZ R7,$
   DJNZ R6,H  
   DJNZ R5,DELAY
   RET
   END