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Đây là đèn giao dung vi điều khiển 8051, mình đưa lên cho mọi người xem để có thêm đề tài nghiên cứu.
cod:
;phan cung:giai ma led 7 bang chuong trinh
;p1.0,p1.1,p1.2>>den xanh1, vang1, do1.
;p1.3,p1.4,p1.5>>den xanh2, vang2 , do2.
;quet led
;donvi1 p2.0
;chuc1 p2.1
;donvi2 p2.2
;chuc2 p2.3.
;data p0
;------------------------------------------------------------------
$MOD51
ORG 0000H
XANH1 BIT P1.0 ;khai bao qui uoc dat ten
VANG1 BIT P1.1
DO1 BIT P1.2
XANH2 BIT P1.3
VANG2 BIT P1.4
DO2 BIT P1.5
LJMP MAIN ;nhay qua ngat
ORG 000BH ;khai bao dia chi ngat time o
LJMP MODEN
ORG 0030H ;dia chi bat dau chuong trinh chinh
MAIN:
MOV R6,#0
CLR XANH1
SETB DO1
CLR VANG1
SETB XANH2
CLR VANG2
CLR DO2
MAIN1: ; duong a duoc di, duong b dung
MOV DPTR,#MA
MOV 62H,#04H
MOV 60H,#09H
MOV 63H,#07H
MOV 61H,#06H
ljmp run1
MOV 62H,#00H
ljmp run1
MOV 60H,#00H
ljmp run1
run1:
LCALL STAR
INC 60H
MOV A,60H
CJNE A,#10,go3
MOV 60H,#00H
ljmp go2
go3:
INC 62H
MOV A,62H
CJNE A,#10,run1
MOV 62H,#00H
ljmp go1
go2:
INC 61H
INC 62H
MOV A,61H
CJNE A,#10,run1
ljmp MAIN2
go1:
INC 63H
mov a,63h
cjne a,#10,run1
MOV 63H,#09H
MOV 62H,#05H
ljmp run1
MAIN2: ; duong b duoc di duong a dung
MOV DPTR,#MA
MOV 62H,#09H
MOV 60H,#04H
MOV 63H,#06H
MOV 61H,#07H
ljmp run12
MOV 62H,#00H
ljmp run12
MOV 60H,#00H
ljmp run12
run12:
cjne r6,#62,tiep ;so sanh lap lai chuong trinh
ljmp main
tiep:
LCALL STAR
INC 60H
MOV A,60H
CJNE A,#10,go32
MOV 60H,#00H
ljmp go22
go32:
INC 62H
MOV A,62H
CJNE A,#10,run12
MOV 62H,#00H
ljmp go12
go22:
INC 61H
INC 62H
MOV A,61H
CJNE A,#10,run12
LJMP run12
go12:
INC 63H
mov a,63h
cjne a,#10,run12
LJMP run12
;ket thuc chuong trinh chính
;888888888888888888888888888888888888888888888888888888888888888888888888888888888
MODEN: ; doan chuong trinh cua ngat
CJNE R6,#27,SOSANH1
LJMP CHUYENDEN1
SOSANH1:
CJNE R6,#32,SOSANH2
LJMP CHUYENDEN2
SOSANH2:
CJNE R6,#58,DAOHOANG
LJMP CHUYENDEN3
CHUYENDEN1:
CLR XANH1
SETB DO1
CLR VANG1
CLR XANH2
SETB VANG2
CLR DO2
SJMP DAOHOANG
CHUYENDEN2:
SETB XANH1
CLR DO1
CLR VANG1
CLR XANH2
CLR VANG2
SETB DO2
SJMP DAOHOANG
CHUYENDEN3:
CLR XANH1
CLR DO1
SETB VANG1
MOV 61H,#09H
MOV 60H,#05H
CLR XANH2
CLR VANG2
SETB DO2
DAOHOANG:
RETI
;8888888888888888888888888888888888888888888888888888888888888888888888888888888888
STAR: ;chuong trinh con hien thi led 7 doan
PUSH ACC
PUSH 00H
PUSH 01H
MOV R2,#50
INC R6
LOOP1:
MOV R1,#11101110b
MOV R0,#60H
DISH:
MOV A,@R0
MOVC A,@A+DPTR
MOV P0,A
MOV P2,R1
LCALL DELAY
MOV P2,#0ffH
INC R0
MOV A,R1
RL A
MOV R1,A
CJNE R0,#64H,DISH
DJNZ R2,LOOP1
MOV R2,#10
POP 01H
POP 00H
POP ACC
RET
;888888888888888888888888888888888888888888888888888888888888888888888888888888
DELAY: ;DELAY 10000MS= 0.01S
MOV TMOD,#01H
MOV TH0,#HIGH(-5000)
MOV TL0,#LOW(-5000)
SETB TR0
MOV IE,#82H
JNB TF0,$
CLR TR0
CLR TF0
RET
;8888888888888888888888888888888888888888888888888888888888888888888888888888888
MA: ;ma led 7 doan
db 6fh,7fh,07h,7dh,6dh,66h,4fh,5bh,06h,3fh
END
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