giúp đỡ lập trình mạch đồng hồ bấm giờ thể thao dùng 8051 viết bằng ASM

[annymurray]

em chào các anh chị trong diễn đàn nhé!!!
em đang hoc môn VXL, thầy bắt tụi em lam mạch đồng hồ bấm giờ thể thao lưu được 5 vận động viên.
em tìm trên mạng thì thấy có 2 đoạn code của 2 mạch luôn, nhưng mà tụi em không biết vẽ hình làm sao cả mong mấy anh chị giúp đỡ nhé...
ps: mạch có bốn nút bấm ( start, lưu vận động viên, reset, hiển thị vận động viên)



code mạch đồng hồ 1
;here is assembly code
org 0h mov 60h,#81h
mov 61h,#0cfh ; 1.Storing data on specific memory location in ram
mov 62h,#92h /////////
mov 63h,#86h /////////
mov 64h,#0cch /////////
mov 65h,#0a4h /////////
mov 66h,#0a0h /////////
mov 67h,#8fh /////////
mov 68h,#80h /////////
mov 69h,#84h /////////

jb p3.7,reset_1 ;To display 0000 on 7 seg when power on and on pressing button it statrs
start:
mov r7 ,#6 ;To increase number on extreme left 7 seg 6 times(0 to 5)
setb rs1 ;select register bank 2
mov r1,#60h ;move 60h to r1 to acsses data for extreme left 7 seg
clr rs1 ;reject register bank 2

label_3:
mov r6,#10 ;To increase number on 2nd 7 seg from left 10 times(0 to 9)
setb rs1
mov r0,#60h ;move 60h to r0 to acsses data for 2nd 7 seg from left
clr rs1

label_2:
mov r1,#60h ;move 60h to r1 to acsses data for 3rd 7 seg from left
mov r5,#10 ;To increase number on 3rd 7 seg from left 10 times(0 to 9)
label_1:

mov r4,#10 ;To increase number on 4th 7 seg from left 10 times(0 to 9)
mov r0,#60h ;move 60h to r0 to acsses data for 4th 7 seg from left
label:

mov r2,#7 ;for delay
again:

mov r3,#16 ;for delay




here: mov a,@r0 ;move data on reg "a" from location saved in r0
mov p2,a jnb p3.4,stop ;on preesing button watch stops
clr p3.3 ;enable common anode of 4th 7 seg from left(it is clr p3.3 because transister convert it to setb p3.3)
lcall delay
setb p3.3 ;disable ////////////////////////////////// mov a,@r1 ;move data on reg "a" from location saved in r1
mov p2,a
jnb p3.4,stop
clr p3.2
lcall delay
setb p3.2 setb rs1 ;select register bank 2 mov a,@r0 ;move data on reg "a" from location saved in r0 of bank 2
mov p2 ,a
jnb p3.4,stop
clr p3.1
clr p2.7 ;enable p2.7 to glow decimal point
lcall delay setb p3.1 mov a,@r1 ;move data on reg "a: from location saved in r1 of bank 2
mov p2,a
jnb p3.4,stop
clr p3.0
lcall delay
setb p3.0
clr rs1 djnz r3,here ;for delay
djnz r2,again ////////// inc r0 ;increase value in r0 of register bank 0 for 4th 7 seg from left
djnz r4,label ;increase value for 4th 7 seg from left 10 times
inc r1 ;increase value in r1 of register bank 0 for 3rd 7 seg from left
djnz r5,label_1 ;increase value for 3rd 7 seg from left 10 times setb rs1 ;select register bank 2
inc r0 ;increase value in r0 of register bank 2 for 2nd 7 seg from left
clr rs1 ;reject register bank 2
djnz r6 , label_2 ;increase value for 2nd 7 seg from left 10 times
setb rs1
inc r1 ;increase value in r1 of register bank 0 for 1st 7 seg from left clr rs1 djnz r7 , label_3 ;increase value for 1st 7 seg from left 6 times
sjmp start

here_1: sjmp here
start_1: sjmp start
reset_1: sjmp reset
////////////////////////////////////////////////////////////////////////
stop: mov a,@r0
mov p2,a
jnb p3.6,here ;p3.6 for resume
jnb p3.5,reset ;p3.5 for rest
clr p3.3
lcall delay
setb p3.3 mov a,@r1
mov p2,a
jnb p3.6,here
jnb p3.5,reset
clr p3.2
lcall delay
setb p3.2 setb rs1 mov a,@r0
mov p2 ,a
jnb p3.6,here_1
jnb p3.5,reset
clr p3.1
clr p2.7
lcall delay setb p3.1 mov a,@r1
mov p2,a
jnb p3.6,here_1
jnb p3.5,reset
clr p3.0
lcall delay
setb p3.0 clr rs1
sjmp stop
/////////////////////////////////////////////////////////////////////////////////////
reset: mov p2,#81h
clr p3.3
lcall delay
setb p3.3 mov p2,#81h
clr p3.2
lcall delay
setb p3.2 mov p2,#81h
clr p3.1
clr p2.7
lcall delay setb p3.1
mov p2,#81h
clr p3.0
lcall delay
setb p3.0 jnb p3.7,start_1 ;p3.7 f0r start sjmp reset
/////////////////////////////////////////////////////////////////////////////
delay: setb rs0
mov r2,#4

gain: djnz r2,gain
clr rs0
ret

end





code mạch đồng hồ 2
ORG 0
LJMP MAIN
ORG 0003H
LJMP ISR_E0
ORG 000BH
LJMP ISR_T0
ORG 0030H
MAIN:
MOV IE,#83H ; ngat timer0 , ngat ngoai 0
SETB IT0 ;kich khoi canh xuong
MOV TMOD,#01H
JB P1.1,$
LCALL DELAY10MS
MOV TH0,#HIGH(-10000)
MOV TL0,#LOW(-10000)
SETB TR0
MOV 16H,#0 ; luu phan tram giay
MOV 17H,#0 ; --- giay
MOV 18H,#0 ;luu phut
MOV R1,#30H
MOV R0,#30H ;o nho ban dau luu giu gia tri vdv
MOV R7,#0 ; dem so lan xuat vdv

LOOP:
LCALL BIN_BCD ; chuyen sang dang bcd
LCALL OUTLED ; xuat ra led
CJNE R0,#3AH,LOOP
JB P1.0,LOOP ; xem co phim nhan xuat vdv ko
LCALL DELAY10MS
NHAN_NUT:
LCALL XUAT_VDV
JnB P1.0,NHAN_NUT
LCALL DELAY10MS
BACK:
LCALL XUAT_VDV
JB P1.0,BACK
LCALL DELAY10MS
INC R7
INC R1
INC R1 ;xuat vdv tiep theo
CJNE R7,#5,NHAN_NUT; da du 5 lan chua
SETB P2.0
SETB P2.1
SETB P2.2
SETB P2.3
SETB EA
SJMP MAIN
;************************************************* ********
ISR_T0:
CLR TR0
MOV TH0,#HIGH(-10000)
MOV TL0,#LOW(-10000)
SETB TR0
INC 16H; tang so phan tram giay len 1
MOV A,16H
CJNE A,#100,EXIT;da du 1giay chua
MOV 16H,#0
INC 17H; tang so giay len 1
MOV A,17H
CJNE A,#60,EXIT; da du 60 giay chua
MOV 17H,#0
INC 18H,# ;tang so phut len 1
MOV A,18H
CJNE A,#10,exit
MOV 18H,#0
EXIT:
RETI
;************************************************* **********
ISR_E0:
MOV @R0,16H; dua so phan tram giay vao o nho 30h
INC R0
MOV @R0,17H; dua so giay vao o nho tiep theo
INC R0
MOV @R0,18H
INC R0
CJNE R0,#3AH,NHAY; da du 5 vdv chua
CLR TR0
CLR EA
NHAY:
RETI
;************************************************* **********
;****xuat van dong vien***
XUAT_VDV:

MOV A,@R1
MOV B,#10
INC R1
DIV AB
MOV 10H,B ; chuyen so hang don vi of phan tram giay vao o nho
MOV 11H,A ; --------------- chuc -----------------
MOV A,@R1
MOV B,#10
DIV AB
MOV 12H,B ; chuyen so hang don vi of giay vao o nho
MOV 13H,A ; -------------- chuc------------------
MOV A,18H
MOV 14H,A
LCALL OUTLED
DEC R1
RET
;************************************************* *********
BIN_BCD:
MOV A,16H
MOV B,#10
DIV AB
MOV 10H,B
MOV 11H,A
MOV A,17H
MOV B,#10
DIV AB
MOV 12H,B
MOV 13H,A
MOV A,18H
MOV 14H,A
RET
;************************************************* *********
OUTLED:
MOV DPTR,#MALED
MOV A,10H
MOVC A,@A+DPTR
MOV P0,A
CLR P2.0
LCALL DELAY_500US
MOV DPTR,#MALED
MOV A,11H
MOVC A,@A+DPTR
MOV P0,A
CLR P2.1
SETB P2.0
LCALL DELAY_500US
MOV DPTR,#MALED
MOV A,12H
MOVC A,@A+DPTR
MOV P0,A
CLR P2.2
SETB P2.1
LCALL DELAY_500US
MOV DPTR,#MALED
MOV A,13H
MOVC A,@A+DPTR
MOV P0,A
CLR P2.3
SETB P2.2
LCALL DELAY_500US
MOV DPTR,#MALED
MOV A,18H
MOVC A,@A+DPTR
MOV P0,A
CLR P2.4
SETB P2.3
RET
DELAY_500US:
MOV R6,#250
DJNZ R6,$
RET
DELAY10MS:
MOV R2,#25
AGAIN:
MOV R3,#200
DJNZ R3,$
DJNZ R2,AGAIN
RET
MALED: DB 09H,0BDH,13H,91H,0A5H
DB 0C1H,41H,9DH,01H,81H
END