do an mach den giao thong cho phep cai thoi gian hoat dong

7/31/2019 Do an Mach den giao thong cho phep cai thoi gian hoat dong

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n 1-DHDT2B

LI NI U

Cng ngh in t ang c nhng bc pht trin chng mt trong nhng nmgn y. Trong cng ngh vi in t c bc pht trin vt bc. Nhng conchip vi kch thc nh gn ang l s la chn ti u nht cho cc ng dng ngynay. Hng lot cc nghin cu ca cc nh khoa hc u nhm rt ngn kch thc,tng tnh tin li v thng minh hn cho cc chip.

Cc chip cng ti u th kh nng ng dng vo thc t cng cao. Thc t chothy, nhng sn phm ca cng ngh vi in t vn ti mi lnh vc trong cucsng, t sn xut n sinh hot hng ngy. Trong tng lai cng ngh vi in t scn tin xa hn tho mn nhu cu ngy cng cao ca con ngi. V vy i vimi sinh vin ngnh in t cn lun o su nghin cu theo kp s pht trinca cng ngh. Vi iu khin l mt sn phm quan trng ca cng ngh vi in t,nhng chip vi iu khin nh gn thc s l mt b c nhn to.

Em c lm quen vi vi iu khin 8051 ca hng Intel, v vy qua vic thchin ti m hnh n giao thng ny l mt c hi em nm vng kin thchn, ng thi mong mun c th ng dng kin thc hc to ra sn phm cch cho cuc sng. Em ngh ti ny xt thc t v c nhiu hng pht trin. Tuynhin v iu kin thi gian c gii hn v thc hin mt mnh nn khng th binht cc tng thnh hin thc. Ln u tin thc hin n nn khng th trnhkhi nhng sai st, em rt mong nhn c s ng gp kin ca thy c v bnb khc phc nhng im cha hon thin ca ti.

Trong thi gian thc hin ti em nhn c s gip tn tnh c v kin

thc chuyn ngnh ln tinh thn ca c gio Phm Trn Bch Thun cng nh ccthy c trong khoa in t, em xin chn thnh cm n cc thy c. Vi mong muntip tc hon thin ti em rt mong nhn c s gip ca cc thy c.

Em xin chn thnh cm n!

GVHD: Phm Trn Bch Thun SV: V Xun Vn1


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NHN XT CA GIO VIN HNG DN

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Ch k ca gio vin

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NHN XT CA GIO VIN PHN BIN

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Ch k ca gio vin

.........................................



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n 1-DHDT2B

A. NI DUNG

I. MC CH

Hin nay an ton giao thng l vn ang c c th gii quan tm. i vi Vit Naml nc ang pht trin v ang trn gia tng dn s th an ton giao thng tht s l mttrong nhng mi lo ngi c t ln hng u, cn c x hi tham gia gim thiu n.

Tuy nhin do iu kin kinh t, nhiu con ng cha th c m rng v nng cp, lclng cnh st giao thng khng th m bo ng cht trn tt c cc ngng. Vy th trt t an ton giao thng c xem l gii php ti u nht hn ch tainn giao thng. Ngoi vic nng cao thc i ng ca ngi dn th h thng tn hiun giao thng trn cc trc ng cng ht sc quan trng.

Theo em ngh xy dng mt h thng tn hiu n giao thng n gin, c th c ngdng v nhn rng v t bit l hot ng n nh, thay th c vai tr ca ngi cnh

st giao thng l cn thit v st thc t nht. Khng nhng th h thng n thng giaothng ny phi tht s linh hot p ng cc tnh hung khi m lng xe lu thng trnng c s thay i. Vic p ng ny c th c thc hin thng qua cc ch hotng ca n giao thng, nh: ch hot ng t ng khi khng gi cao im, ch iu khin bng tay ca cnh st giao thng s dng khi kt ng, ch n vng trongkhong thi gian t 23h ti hm ny n 5h sng hm sau. Ngoi ra h thng n giaothng ny cn c th thay i c khong thi gian hin th ca cc tn hiu n. Tnhng tng i n mc ch em xy dng m hnh h thng n giao thng ny.Vi mong mun m hnh ny s tip tc c nhng nng cp, sa i c th i vo thct.

II. NGYUN L HOT NG CA N GIAO THNG

M hnh n giao thng gm c:

u nhp d liu vo l bn phm, gm cc phm chc nng v phm nhp thigian, ci t thi gian ca cc ch hin th. Khi vi x l gm c: mch vi x l vi vi iu khin 89V51 lm nhim v x l

chnh, b ngun cung cp in p 5VDC, cc nt nhn:_ Nt Reset: a chng trnh tr li ban u._ Nt Cut and Set: chuyn gia cc ch t ng v ch iu khin bng tay;

chuyn sang ch nhp d liu t bn phm, l nt nhn to ra tn hiu ngt ngoi.


u vo X l u ra


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n 1-DHDT2B

_ Nt Manual mode: chuyn i hai trng thi hin th trong ch iu khin bng tay. u d liu ra ( hin th) gm:_Mn hnh LCD: hin th thng tin c nhp vo t bn phm_Led n: hin th tn hiu n giao thng._Led 7 on: hin th thi gian sng ca n.

II.1 HOT NG

u tin chng trnh Main thit lp ch ngt ngoi,khi c tn hiu ngt ngoi (nt cutand set c nhn), chng trnh chuyn sang ch chn qut phm hay chn iu khinbng tay.

Khi chng trnh ang chy, nt Cut and Set nhn ln 1 ngt hin th, nhn ln 2chng trnh chuyn sang ch qut phm. Thng tin nhp vo t bn phm ma trn sc lu li ng thi c hin th trn LCD. Sau khi nhp y cc thng s: thi gian

hin th ca n xanh,n ; thi gian hin ti,ngi s dng nhn phm Enter thotkhi chng trnh qut bn phm ma trn v chuyn ti chng trnh hin th tn hiu ngiao thng v hin th thi gian trn led 7 on. Nu khng nhn phm Enter th khng thchuyn sang hin th tn hiu n.Nu nt Man mode c nhn, chng trnh chuyn sang ch iu khin bng tay

ca cnh st giao thng. Tip tc s dng phm Man mode chuyn i qua li gia haich hin th: tuyn a n vng sng, tuyn b n xanh sng v tuyn a n xanh sng,tuyn b n vng sng. Khi khng cn thit s dng ch iu khin bng tay (khing thng xe tr li) th ngi dng nhn nt Cut and Set ngt ch iu khinbng tay. Khi ch iu khin bng tay ngt th ngi dung phi ci t li thi gian

hin ti.II.2 LU GII THUT CHUNG



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n 1-DHDT2B


Cut andSet

Main2

Choose_mode:

C nhn

khng

Chn ch iu khin bng tayChn nhp

thi gian

Manualmode

Tn hiun

Cut andSet

Cut andSet

C nhn

khng

khngCut and

Set

C nhn

Qut bnphm

iu khinbng tay

PhmEnter

khng

khng

C nhn C nhn

C nhn

khng

Main:

Lachn


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III. CC KHI CA M HNH N GIAO THNG

III.1 KHI VI X L V KHI NGUNIII.1.1 S nguyn l



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Gm c bin th 3A,a ra mc in p 12VAC. Cu chnh lu bin in p 12VACthnh 12VDC. Mc in p ny i qua IC n p 7805, u ra ca IC 7805 l mc in p5VDC, mc in p ny dng cung cp cho khi vi x l v khi hin th. Ngoi ratrong s khi ngun cn c cc t c nhim v lc nhiu v gim bt nhp nh cap DC ng ra.

III.2 KHI HIN TH

III.2.1 Lu gii thut


A: B:xanh

i BCDSan 7 o n

Delayqut

(58H) vi#0fH

A: xanhB:

i BCDSan 7 o n

A: B:xanh

Delayqut

i BCDSang 7 on

A: B:xanh

elay qut

i BCDSang 7 on

A: B:xanh

(58H) vi# 0fH

Gim(54H)

elay qut

i BCDSang 7 on

A: B:xanh

Gim(55H)

(55H) vi 0Gim(55H)

Bng

Khngbng

MOV R6,54HMOV R7,55H

MOV R6,55HMOV R7,54H

A: xanhB:

Gim(55H)

Bng

Khngbng

Gim R7 Gim R6

R7 vi 0 R6 vi 0Khngbng

KhngbngBngBng 2 3 4 57 61

Main1:


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n 1-DHDT2B

III.2.2 S nguyn l


R7 vi 0

A:

B:vngTrong 3s; mov R7,#3

Khngbng

R6 vi 0

A: vng

B:Trong 3s;mov R6,#3

Khngbng

Bng

Gim R6Gim R7

Bng

1 32 457

6


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n 1-DHDT2B

S mch in

III.2.3 Nguyn l hot ngChng trnh hin th led n, hin th thi gian trn led 7 on c t trong chng

trnh ngt Timer1. Chng trnh hin th led ch c thc hin sau khi chy xongchng trnh phuc v ngt ngoi ( chng trnh ci t thi gian hin th cho cc led).

Sau khi ci t thi gian, cc gia tr c lu trn hai nh 54H ( n ) v 55H( n xanh). Cc gi tr ny ln lc c chuyn qua thanh ghi R6 v R7.

Ta bit h thng giao thng ng t c hai tuyn. Chng trnh khi ng ch hin thth nht: tuyn A n v tuyn B n xanh. Chng trnh con chuyn BCD sang 7 onv chng trnh qut led c gi hin th thi gian trn led 7 on, cc gi tr x ltrong hai chng trnh con ny c ly t R6 v R7. nh 58H l nh nh du ch n vng, nu nh 58H bng gi tr 0fH ( l mt gi tr tu ta chn) tc l chngtrnh va thot khi ch n vng, chng trnh s quay tr li thc hin t u. Nukhng bng chng trnh tip tc gim R6 v so snh gi tr R6 vi 0. Nu R6 khckhng, tc l thi gian n hin th cha ht, th chng trnh chuyn sang gim R7 vso snh gi tr R7 vi 0, nu khc 0, chng trnh quay tr li ban u tip tc cho hinth tren led 7 on, nu bng 0, tc thi gian n xanh ht, n xanh s chuyn sang nvng trong vng 3s, n gi nguyn. Trng hp khi so snh R6 bng 0 ( thi gian n



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n 1-DHDT2B

ht), th chng trnh s chuyn sang trng thi hin th th hai: tuyn A n xanh vtuyn B n . Chng trnh hot ng theo trnh t tng t nh trn.

Trong sut qu trinh hot ng ca n, Timer0 s m lin tc tng byte gi ( nh51H), khi no (51H) bng 23, tc 11h ti, h thng chuyn sang ch n vng. Khi(51H) bng 5, tc 5h sng hm sau, h thng thot khi ch n vng.

III.3 KHI BN PHMIII.3.1 S nguyn l



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III.3.2 Lu gii thut

Khi nhn phm chc nng no s vo chng trnh con tng ng, cc chng trnh conu c xy dng vi s gii thut tng t nhau. Di y l gii thut ca chngtrnh qut phm v nhp thi gian cho n , t c th suy ra gii thut cho ccchng trnh khc.


Redlight

Greenlight

Hours

Minutes

Enter

Hin th led

Red_light:

Green_light:

Hours:

Minutes:

Khngnhn

nhn

nhn

nhn

nhn

Khngnhn

Khngnhn

Khngnhn

Khng nhn

nhn

Scankeypad:

RETI


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n 1-DHDT2B

hang


Phm: Red; Green;Hours; Minutes;

Esc

CLR

Hin th:RED LIGHT:

Trn LCD

Phms

C nhn

Khng

Khng

Np vo R4

Scankeypad

Hin th LCDS hng chc

xo

RET

C nhn

C nhn

Khng

1 2

Red_light:


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n 1-DHDT2B


Scankeypad

Phm: Red; Green;Hours; Minutes;

Esc

CLR

Phms

C nhn

Np vo R4Hin th LCD s hn n v

Scankeypad

Phm: Red; Green;Hours; Minutes

CL

R

Phms

Hin th:FULLTrn LCD

Xo chc vHin th LCD

Xo nv v

Hin th LCD

Khng

C nhn

Khng

C nhn

Khng

C nhn

Khng

C nhn

Khng

C nhn

Khng

1 2

43


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Tt c cc chng trnh phm chc nng kt qu u np vo thanh ghi R4. Cuichng trnh gi tr ca thanh ghi R4 s c chuyn vo mt nh c nh, ring bit chotng chng trnh trc khi nhn Enter a cc gi tr trong cc nh hin th led, hoc tip tc x l ( chng trnh ci t thi gian cho Timer0). Ta c 51H, 52H lnlt cha thng tin v gi v pht c ci t; 54H, 55H ln lt cha thi gian hin thca n v n vng.Ngi dng ch c nhp mt s c hai ch s, nhp hn chng trnh s bo y. chng trnh nhp thi gian cho byte gi v byte pht, sau khi nhp xong d liu thay

v kim tra gi tr nhp l bng o hay khc o, chng trnh s kim tra chn cc gi tr npvo ln hn hoc bng 24.

IV. CHNG TRNH LP TRNHCHO VI X L

$MOD51ORG 0000H


ESC

RET

C nhn

Khng

Khc 00

34

Xt ni dungc np

Bng 00

Thng boYu cu nhp li

Np vo nh54H


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n 1-DHDT2B

SJMP MAIN

ORG 0003HLJMP MAIN2

ORG 001BHLJMP MAIN1

ORG 0030H

MAIN:MOV 51H,#00HMOV 52H,#00HMOV 53H,#00H

SETBIT0MOVIE,#81HMOVIP,#01HSJMP $;===============================================;THE FIRM BYTES ARE: 51H,52H,53H,54H,55H,56H,57H,58H;================================================MAIN1:

MOVR6,54HMOVR7,55H

MOVP2,#0DEHBEGIN1:

LCALL CHANGEBCD_7SEGLCALL DELAY_SCANMOVA,58HCJNEA,#0FH,GOON1MOV 58H,#00HSJMP MAIN1

GOON1:MOVA,R6ADDA,#99HDAAJZ TRANSFERMOVR6,AMOVA,R7ADDA,#99H



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n 1-DHDT2B

DAAMOVR7,ACJNER7,#00H,BEGIN1MOVR7,#3HMOVP2,#0EEH

LJMP BEGIN1

TRANSFER:MOVR6,55HMOVR7,54HMOVP2,#0F3H

BEGIN2:LCALL CHANGEBCD_7SEGLCALL DELAY_SCAN

MOVA,58HCJNEA,#0FH,GOON2MOV 58H,#00HLJMP MAIN1

GOON2:

MOVA,R7ADDA,#99HDAAJZ MAIN1

MOVR7,AMOVA,R6ADDA,#99HDAAMOVR6,ACJNER6,#00H,BEGIN2MOVR6,#3HMOVP2,#0F5HLJMP BEGIN2

EXIT:RETI

;=============================================================;*********************CHOOSE MODE************************

MAIN2:MAN_MODE BIT P3.1CUT_SETTING BIT P3.2



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n 1-DHDT2B

CHOOSE_MODE:CLREX0JNB CUT_SETTING,CHOOSE_MODELCALL DELAY_1CHOOSE_MODE1:

JB CUT_SETTING,CHOOSE_MODE2LCALL SETTING_PROSJMP AUTO_MODE

CHOOSE_MODE2:JB MAN_MODE,CHOOSE_MODE1LCALL MANUAL_MODE

AUTO_MODE:

MOVP2,65H

CLRIE0SETBEX0SETBTF1SETBET1RETI

;************************MANUAL MODE***************************MANUAL_MODE:

PUSHACCPUSH 00H

PUSH 70HPUSH 03H

MOV 65H,P2CLREX0

MODE1:MOVR3,#200MOVP2,#0FFHMOV 70H,#0FH

MOVP2,#0DEH

SJMP SCAN_SW2MODE2:

MOVR3,#200MOVP2,#0FFHMOV 70H,#00HMOVP2,#0F3H



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n 1-DHDT2B

SJMP SCAN_SW2

DELAY_MANU:

MOVR0,#40

MOVTMOD,#11HLOOP3:MOVTH0,#HIGH(-10000)MOVTL0,#LOW(-10000)SETBTR0SCAN_SW:

JNB MAN_MODE,SCAN_SW

SURE_1:

JB MAN_MODE,SCAN_SW1DJNZR3,SURE_1MOVA,70HCJNEA,#0FH,MODE1LJMP MODE2

SCAN_SW1:JB CUT_SETTING,SCAN_SW2DJNZR3,SCAN_SW1

SJMP CHANGE_MODE

SCAN_SW2:JNBTF0,SURE_1CLRTR0CLRTF0DJNZR0,LOOP3

INC 53HMOVA,53HCJNEA,#10,DELAY_MANUMOV 53H,#00HINC 52HMOVA,52HCJNEA,#3,DELAY_MANUMOV 52H,#00HINC 51HMOVA,51HCJNEA,#4,DELAY_MANUMOV 51H,#00H



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n 1-DHDT2B

SJMP DELAY_MANU

CHANGE_MODE:

POP 03HPOP 70HPOP 00HPOPACC

RET

;*************************SCANKEYPAD**************************

SETTING_PRO:

EN BIT P2.2RW BIT P2.1RS BIT P2.0DATABUS EQU P1

PUSHDPH

PUSHDPLPUSHACCMOV 65H,P2MOVP2,#00H

SETBP3.4SETBP3.5SETBP3.6SETBP3.7LCALL LCDSTART

MAIN_2:

MOV DATABUS,#80HLCALL SENDCOMMAND

LCALL SCANKEYPAD



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n 1-DHDT2B

CJNEA,#0AH,NEXT1LCALL REDLIGHT_1

NEXT1:

CJNEA,#0BH,NEXT2

LCALL GREENLIGHT_1

NEXT2:

CJNEA,#0CH,NEXT3LCALL HOURS_1

NEXT3:

CJNEA,#0DH,NEXT4LCALL MINUTES_1

NEXT4:

CJNEA,#00H,NEXT5SJMP NEXT6

NEXT5:LJMP MAIN_2

NEXT6:

POPACCPOPDPL

POPDPHRET

;============================DELAY_2.5MS==============================DELAY_1:

PUSH 00HPUSH 01HMOVR0,#10DEL:MOVR1,#250DJNZR1,$DJNZR0,DEL



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n 1-DHDT2B

POP 01HPOP 00HRET

;=================TRANSLATE FROM BCD INTO 7SEG================CHANGEBCD_7SEG:

PUSHDPLPUSHDPHPUSHACC

MOV DPTR,#CODE7SEG

MOVA,R6ANLA,#0FHMOVCA,@A+DPTRMOV 61H,A

MOVA,R6ANLA,#0F0HSWAPAMOVCA,@A+DPTRMOV 60H,A

MOVA,R7ANLA,#0FHMOVCA,@A+DPTRMOV 63H,A

MOVA,R7ANLA,#0F0HSWAPAMOVCA,@A+DPTRMOV 62H,A

POPACCPOPDPHPOPDPLRET

;=====================DISPLAY 7SEG CODE=======================DIS_7SEG:



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n 1-DHDT2B

PUSHACCPUSH 00HMOVR0,#60HMOVA,#0EFH

LOOP:MOVP0,@R0MOVP3,ALCALL DELAY_1MOVP3,#0FFHINCR0RLACJNEA,#0FEH,LOOPPOP 00HPOPACC

RET;======================DELAY AND SCAN IN 1S==================DELAY_SCAN:

PUSH 00HPUSHACCMOVR0,#40

MOVTMOD,#01HLOOP1:MOVTH0,#HIGH(-10000)

MOVTL0,#LOW(-10000)SETBTR0SCAN:LCALL DIS_7SEGJNBTF0,SCAN

CLRTR0CLRTF0DJNZR0,LOOP1

MOVA,51HCJNEA,#0,DETECT1LCALL WAITING_1MOV 58H,#0FH



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n 1-DHDT2B

SJMP BACKSCAN_2

DETECT1:

CJNEA,#3,DETECT2LCALL WAITING_1MOV 58H,#0FHSJMP BACKSCAN_2

DETECT2:CJNEA,#4,BACKSCAN_1

LCALL WAITING_1MOV 58H,#0FH

SJMP BACKSCAN_2BACKSCAN_1:INC 53HMOVA,53HCJNEA,#10,BACKSCAN_2MOV 53H,#00HINC 52HMOVA,52HCJNEA,#3,BACKSCAN_2

INC 51HMOV 52H,#01HBACKSCAN_2:

POPACCPOP 00H

RET;=========================WAITING MODE=========================WAITING_1:

PUSHACCPUSHTH0PUSHTL0PUSH 56HMOVP2,#0EDHMOV 53H,#00H

WAITING_2:

MOVA,51HCJNEA,#0,DETECT_1



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n 1-DHDT2B

SJMP DELAY1S

DETECT_1:CJNEA,#3,DETECT_2

SJMP DELAY1SDETECT_2:

CJNEA,#4,BACKSCAN_3MOV 51H,#00H

DELAY1S:

MOV 56H,#100MOVTMOD,#11HLOOP2:

MOVTH0,#HIGH(-10000)MOVTL0,#LOW(-10000)SETBTR0JNBTF0,$CLRTR0CLRTF0INC 53HDJNZ 56H,LOOP2MOVA,53HCJNEA,#5,DELAY1S

MOV 53H,#00HINC 52HMOVA,52HCJNEA,#3,DELAY1SMOV 52H,#01HLJMP WAITING_2INC 51H

BACKSCAN_3:

POP 56HPOPTL0POPTH0POPACCRET

;=========================SCAN==================================SCANKEYPAD:



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n 1-DHDT2B

PUSH 03HSCANKEYPAD_1:

ACALL GETKEYJC SCANKEYPAD_1MOVR3,#200

BACK:ACALL GETKEYJNC BACK

DJNZR3,BACK

POP 03HRET

;=======================GETKEY==================================

GETKEY:PUSH 05HPUSH 06HPUSH 07HMOVA,#0EFHMOVR6,#4

TEST:MOVP0,AMOVR7,AMOVA,P0

ANLA,#0FHCJNEA,#0FH,KEYPRESSEDMOVA,R7RLADJNZR6,TESTCLRCSJMP EXIT1

KEYPRESSED:MOVR7,AMOVA,#4CLRCSUBBA,R6MOVR6,AMOVA,R7MOVR5,#4

AGAIN:RRCAJNC DONE



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n 1-DHDT2B

INCR6INCR6INCR6INCR6DJNZR5,AGAIN

DONE:SETBCMOVA,R6

EXIT1:POP 07HPOP 06HPOP 05HRET

;=======================CONTENT OF SETTING=====================SETTING:

MOV 59H,ALCALL WRITE_DATAMOVA,59HSWAPAMOVR4,A

RETURN:

LCALL GET_NUMBER_CLR

MOV 59H,ACJNEA,#0FH,INPUTMOVA,R4ANLA,#00HMOVR4,ALCALL CLEAR_1

MOV 57H,#00HSJMP GO_OFF_2

INPUT:LCALL WRITE_DATAMOVA,59HADDA,R4MOVR4,AMOV 57H,#0FH

GO_1:



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n 1-DHDT2B

LCALL GET_NUMBER_CLR_ESC

CJNEA,#0FH,GO_2MOVA,R4ANLA,#0F0H

MOVR4,ALCALL CLEAR_2

SJMP RETURN

GO_2:CJNEA,#0EH,GO_OFF_1MOV DATABUS,#01HLCALL SENDCOMMAND

RETGO_OFF_1:MOV DATABUS,#0C0HLCALL SENDCOMMANDMOVA,#50LCALL WRITE_LABELSJMP GO_1

GO_OFF_2:RET

;

=========================================================================;==============PREVENT TO INTERFACE===========================GET_NUMBER_CLR:

LCALL SCANKEYPAD

CJNEA,#0EH,GET_1CLRASJMP GET_NUMBER_CLR

GET_1:CJNEA,#0DH,GET_2CLRASJMP GET_NUMBER_CLR

GET_2:CJNEA,#0CH,GET_3CLRASJMP GET_NUMBER_CLR

GET_3:



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n 1-DHDT2B

CJNEA,#0BH,GET_4CLRASJMP GET_NUMBER_CLR

GET_4:CJNEA,#0AH,GET_5

CLRASJMP GET_NUMBER_CLR

GET_5:RET

;===================GET NUMBER OR ESCAPE=====================GET_NUMBER_CLR_ESC:

LCALL SCANKEYPAD

CJNEA,#0DH,GET1CLRA

SJMP GET_NUMBER_CLR_ESCGET1:CJNEA,#0CH,GET2CLRASJMP GET_NUMBER_CLR_ESC

GET2:CJNEA,#0BH,GET3CLRASJMP GET_NUMBER_CLR_ESC

GET3:

CJNEA,#0AH,GET4CLRASJMP GET_NUMBER_CLR_ESC

GET4:RET

;=======================================================================

REDLIGHT_1:PUSHACCMOVA,#10MOV 64H,#9LCALL WRITE_LABEL

REDLIGHT_2:LCALL GET_NUMBER_CLRCJNEA,#0FH,BEGIN_SET1



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n 1-DHDT2B

MOV DATABUS,#01H

LCALL SENDCOMMANDSJMP STOP1

BEGIN_SET1:

LCALL SETTINGCJNER4,#00H,FINISH1SJMP REDLIGHT_2

FINISH1:

MOV 54H,R4STOP1:

POPACCRET

;========================================================================GREENLIGHT_1:

PUSHACCMOVA,#21MOV 64H,#11LCALL WRITE_LABEL

GREENLIGHT_2:LCALL GET_NUMBER_CLR

CJNEA,#0FH,BEGIN_SET2MOV DATABUS,#01HLCALL SENDCOMMAND

SJMP STOP2

BEGIN_SET2:LCALL SETTINGCJNER4,#00H,FINISH2SJMP GREENLIGHT_2

FINISH2:

MOV 55H,R4STOP2:

POPACCRET

;=========================================================================



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n 1-DHDT2B

HOURS_1:PUSHACCMOVA,#34MOV 64H,#5LCALL WRITE_LABEL

HOURS_2:LCALL GET_NUMBER_CLRCJNEA,#0FH,BEGIN_SET3MOV DATABUS,#01HLCALL SENDCOMMAND

SJMP STOP3BEGIN_SET3:

LCALL SETTINGCJNER4,#00H,FINISH3

SJMP HOURS_2FINISH3:MOV 51H,R4

STOP3:POPACCRET

;========================================================================MINUTES_1:

PUSHACCMOVA,#41MOV 64H,#7LCALL WRITE_LABEL

MINUTES_2:LCALL GET_NUMBER_CLR

CJNEA,#0FH,BEGIN_SET4MOV DATABUS,#01HLCALL SENDCOMMAND

SJMP STOP4BEGIN_SET4:

LCALL SETTINGCJNER4,#00H,FINISH4SJMP MINUTES_2

FINISH4:



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MOV 52H,R4STOP4:

POPACCRET

;=========================================================================;********************CONTROL LCD*******************************

;===================INITAL PROGRAM===========================LCDSTART:

CLRRS

CLRRWSETB ENMOV DATABUS,#38HLCALL SENDCOMMANDMOVTH1,#HIGH(-4100)MOVTL1,#LOW(-4100)LCALL DELAY_2

MOV DATABUS,#38HLCALL SENDCOMMAND

MOVTH1,#HIGH(-100)MOVTL1,#LOW(-100)LCALL DELAY_2

MOV DATABUS,#38HLCALL SENDCOMMANDMOV DATABUS,#0CHLCALL SENDCOMMANDMOV DATABUS,#01HLCALL SENDCOMMANDRET

;===========================SENDING PROGRAM==================SENDCOMMAND:

CLRRS

SJMP PULSE_ENSENDDATA:

SETB RS



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NOPPULSE_EN:

CLRRWCLRENNOP

SETB ENNOP

MOV DATABUS,#0FFHSETB RWCLRRSCLRENNOPSETB EN

NOPBUSY:MOVA,DATABUSJBACC.7,BUSY

BUSY_2:

MOVA,DATABUSJBACC.7,BUSY_2CLRRW

RET;======================================================================DELAY_2:

MOVTMOD,#11HSETBTR1JNBTF1,$CLRTR1CLRTF1RET

;=======================================================================CLEAR_1:

PUSH 01HPUSHACC



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MOVA,64HADDA,#1ADDA,#80HMOV DATABUS,A

MOVR1,ALCALL SENDCOMMANDNOPMOV DATABUS,#' 'LCALL SENDDATALCALL DELAY_1MOVA,R1MOV DATABUS,ALCALL SENDCOMMAND

POPACCPOP 01HRET

CLEAR_2:PUSH 01H

PUSHACCMOVA,64HADDA,#2

ADDA,#80HMOV DATABUS,A

MOVR1,A

LCALL SENDCOMMANDMOV DATABUS,#' 'LCALL SENDDATALCALL DELAY_1MOVA,R1

MOV DATABUS,ALCALL SENDCOMMANDPOPACCPOP 01H

RET



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;=======================================================================WRITE_LABEL:

MOV DPTR,#LINE_DATAMOVR1,A

WRITE_LABEL_1:

MOVCA,@A+DPTRCJNEA,#99H,WRITE_CONT1RET

WRITE_CONT1:MOV DATABUS,ALCALL SENDDATA

INCR1MOVA,R1SJMP WRITE_LABEL_1RET

WRITE_DATA:MOVCA,@A+DPTRMOV DATABUS,ALCALL SENDDATARET

;=======================================================================;*******************7SEG CODES*********************************CODE7SEG:

DB 0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0F8H,80H,90HLINE_DATA:

DB '0123456789'DB 'RED LIGHT:'DB 99HDB 'GREEN LIGHT:'DB 99HDB 'HOURS:'DB 99HDB 'MINUTES:'DB 99HDB 'FULL'DB 99H



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;***********************NOTE************************************************

;DUTY OF MEMORY SQUARES:

; 51H BYTE OF HOURS; 52H BYTE OF MUNITES; 53H BYTE OF SECONDS; 54H BYTE OF RED LIGHT; 55H BYTE OF GREEN LIGHT; 56H USED IN DELAY1S OF WAITTING PROGRAM; 57H MARK THE DATA PURCHAGED IN HOURS/MUNITES PROGRAM; 58H USED TO MARK ALREADY INPUTING THE WAITTING PROGRAM

THEN COMPARE FOR MAIN1 PROGRAM;RETURN AT THE BEGINNING POSITION; 59H SAVE VALUE OF A REGISTER IN SETTING PROGRAM AND SAVETHE STATUS OF LIGHTS(CONTEND OF;P2) IN AUTO MODE AND MANUAL MODE; 60H FROM 60H TO 63H IS USED IN THE CHANGEBCD_7SEG PROGRAM; 61H; 62H; 63H; 64H CONTAIN THE ENDING POSITION OF STRING LABEL,USED IN

ERASE A CHARACTER PROGRAM; 70H CONTAIN A VALUE TO TRANSFER THE STATUS OF LIGHT IN THEMANUAL MODE

END



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B. KT LUN

Sau thi gian thc hin, ti c nhng kt qu nht nh, em xy dng c mn giao thng ( nh hnh) vi nhng tnh nng nh sau:

Hin th chnh xc thi gian trn led 7 on v tn hiu n giao thng trn led n C kh nng ci t li thi gian hin th ca n v n xanh, v ci t thi

gian hin ti thng qua bn phm ma trn. Ngoi ra n cn c ch iu khin bng tay thng qua nt nhn Manual mode,

s dng khi kt ng. Ch hin th n vng trong khong thi gian t 23h n 5hsng hm sau.



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HNG PHT TRIN CA TI

Do thi gian thc hin ti c gii hn, v vy em khng th a ra mt m hnh n

giao thng hon chnh, nhiu tng v hng pht trin ca ti cha th thc hinc. Em nu di y nhng kh nng m em d nh pht trin ti, rt mong nhnc s gp ca thy c v cc bn ti thm hon chnh.

Hin nay nhiu trc ng c tn hiu n giao thng, vn xy ra tnh trng ngi thamgia giao thng u phng tin trn vch ng dnh cho ngi i b trong thi gian chn . Theo em nn t h thng cm bin pht hin v bo ng trong trng hpphng tin tham gia giao thng u qu vch ng dnh cho ngi i b. ng thi tndng thi gian n , n giao thng s t ng chiu ln mt mn nh trong sut cchnh nh v trt t an ton giao thng nng cao thc i ng ca ngi iu khinphng tin.

Ch n vng c t t 23h m n 5h sng hm sau. Tuy nhin trong thi gian vn s c phng tin tham gia giao thng. V vy em ngh cn thit phi t h thngcm bin cch xa n mt on v cho cm bin hot ng trong ch n vng phthin phng tin ang i ti. Cm bin s tc ng ln vi x l tt ch n vng vchuyn sang ch nhy t ng.

Trong nhng iu kin cn thit cc ct n giao thng c th lm vic c lp vi nhau.Cc ct n giao thng trn cng tuyn ng c th c ni vi nhau cng nhn mttn hiu iu khin trong nhng trng hp cn thit ( ng mt chiu, hay nhng khi tchc cc s kin quan trng).



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C. TI LIU THAM KHO

1.Gio trnh Vi X L ca trng i hc Cng Nghip Thnh Ph H Ch Minh, bin

son: Phm Quang Tr.2.Ti liu hng dn thc hnh Vi iu Khin MCS-51 ca trng i hc CngNghip Thnh Ph H Ch Minh, bin son: Phm Quang Tr.

3.K thut in t, bin son: L Phi Yn, Lu Ph, Nguyn Nh Anh.4.Gio trnh in t s ca trng i hc Cng Nghip Thnh Ph H Ch Minh.5.Cc trang Web:

- www.google.com.vn- www.ant7.vn- www.dientuvietnam.com- www.Datasheetall.com



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do an mach den giao thong cho phep cai thoi gian hoat dong

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