athaco
16-04-2013, 10:25 AM
Bài tập 8 Led tắt dần
http://youtu.be/vNztqhfM0Ec
$MOD51
ORG 00H
MAIN:
MOV A,#00H
MOV R1,#09H
LOOP1:
MOV P0,A
LCALL DELAY
SETB C
RLC A
DJNZ R1,LOOP1
SJMP MAIN
DELAY:
PUSH 00H
MOV R0,#100
MOV TMOD,#01H
LOOP2:
MOV TH0,#HIGH(-15000)
MOV TL0,#LOW(-15000)
SETB TR0
JNB TF0,$
CLR TR0
CLR TF0
DJNZ R0,LOOP2
POP 00H
RET
END
Link Mediafire (http://www.mediafire.com/?5dl3r63282qr77t)
http://youtu.be/vNztqhfM0Ec
$MOD51
ORG 00H
MAIN:
MOV A,#00H
MOV R1,#09H
LOOP1:
MOV P0,A
LCALL DELAY
SETB C
RLC A
DJNZ R1,LOOP1
SJMP MAIN
DELAY:
PUSH 00H
MOV R0,#100
MOV TMOD,#01H
LOOP2:
MOV TH0,#HIGH(-15000)
MOV TL0,#LOW(-15000)
SETB TR0
JNB TF0,$
CLR TR0
CLR TF0
DJNZ R0,LOOP2
POP 00H
RET
END
Link Mediafire (http://www.mediafire.com/?5dl3r63282qr77t)