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ORG 0000H LJMP MAIN ORG 0003H LJMP EXTER0 ORG 000BH LJMP IPTO MAIN:MOV SP, #60H MOV TMOD,#11H MOV IE, #83H MOV IP, #02H MOV TH0, #0B1H MOV TL0, #0E0H MOV TH1, #0D8H MOV TL1, #0F0H MOV R1, #02H HERE:LJMP HERE DELAY:SETB TR1 HEREY:JNB TF1, HEREY CLR TR1 CLR TF1 MOV TH1, #0D8H MOV TL1, #0F0H RET EXTER0:LCALL DELAY JB P1.0, LOOP0 HERE0:JNB P1.0, HERE0 CPL TR0 LOOP0:RETI IPTO:DJNZ R1, LOOP CPL P1.2 CPL 00H JNB 00H, LOOP2; MOV R1, #03H LJMP LOOP LOOP2:MOV R1, #02H LOOP:MOV TH0, #0B1H MOV TL0, #0E0H RETI END |
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