tự làm bảng đèn led quẢng cÁo - phÚc lan shop - asm
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T lam bang en Led chay ch trn ma trn 8x24 chi dung mt ic AT89C51 Dn nhp Dung ic lp trinh AT89C51, Ban co th kim soat c trang thai tt sang cua cac day Led trn cac bang en, t o co th tao ra c cac hinh anh hay cac dong con ch cho chay trn cac bang en nay, cng vic nay hin rt c nhiu Ban a thich, trong bai vit nay, ti trinh bay mt bai lam thc hanh kha n gian nhng rt cn c Ban hiu c nguyn ly lam vic cua cac bang en quang bao. T cac hiu bit nay, Ban mi co th se m rng ra nhiu kiu bang en phc tap hn. Mong Ban tm tim hiu.
Bai thc hanh nay se cho hin hinh va cac dong ch chay, nhp nhay, trn mt bang en ma trn 8x8. Vi ic mt lp trinh co 4 cang p0, p1, p2, p3, chung ta se dung 3 b ma trn 8x8 va nh vy se khng cn thm mt ic logic nao na. Mach rt n gian, nhng co c s ly thuyt rt c ban, se giup Ban hiu rt ro v cac loai en quang bao ln khac.
Phn tich s mach in :
Trt ht Ban tao bang en dung 3 b 8x8. Cac hang, trn o la cac chn Anode cua cac Led cho ni chung va dung mt transistor pnp dung bit 0 xut trn cac chn cua cang p1 cp cho chn B cua transistor cho ni dy chung ny ln ng ngun 5V. Do mach dung ky thut quet nn mi ln chi co mt hang cho ni vao ng ngun 5V. Do cac chn cua Cathode cua Led cho ni chung trn mt ct, chung ta dung cac transistor npn cho ct thng masse ly dong cp cho cac Led, vy chn Cathode thng masse, chung ta se dung bit 1, cho xut trn cac chn cua cng p2, p0 va p3 cp cho chn B cua cac transistor. Vi mt cng co 8 bit, vy mi b ma 8 bit cho xut ra trn cac cng p2, p0, p3, chung ta co th iu khin mi nhip c 8 Led. Tim hiu bang ma trn Led 8x8 : Hinh ve cho thy cach gn cac Led trn ma trn tao bi 8 hang va 8 ct.
S dung giai thich nguyn ly tt m cac Led trn bang ma trn 8x8.
Cach 1 : cang p1.
Ma quet xut trn p2, p3, p0, ma hinh hay ch xut trn
S mach in trn, mt ln na, cho thy, chung ta cho ni 8 chn cua cac chn B cua 8 transistor 2SA1015 va cang p1. Vy khi co mt chn cua cang p1 xut ra bit 0, no se lam transistor bao hoa, va luc nay dy anode chung se c cho ni vao ng ngun 5V. y, Ban se vit oan chng trinh sao cho mi nhip chi co mt chn cua cng p1 xut ra bit 0. Ban thy khi xut 8 bit ra trn cang p2, 8 bit mc 1 ng vi mc volt cao dung cp cho chn B cua 8 transistor 2SC1815, luc nay cac transistor se bi lam cho bao hoa, no cho 8 ct trn o co cac chn Cathode ni masse, vy 8 Led nay se phat sang, trong mach chung ta han dong vi cac in tr 100 ohm. Tom lai, mun in hinh hay cac con ch trn bang Led ma trn nay, Ban phai lam c 2 vic sau: Vic 1 : Vit oan chng trinh cp ma quet.Tc quet u nhanh dung hin tng lu anh cua mt ma gy ra "nhm ln" la trn bang en ang co rt nhiu Led ang c cp dong phat sang. Vit oan chng trinh xut ma quet bit 0 trn cac chn B cua cac transistor pnp trn cac cang p1, cho ch tri xung.
Vit oan chng trinh xut ma quet bit 0 trn cac chn B cua cac transistor pnp trn cac cang p1, cho ch tri ln.
Vit chng trinh ma quet, cp bit 1 cho cac chn B cua cac transistor npn trn cac cang p2, p3, p0, tao hinh di ngang.
Vic 2 : Vit cac day ma 8 bit cho xut ma hinh trn cac cang p2, p3, p0 hay trn p1 lam sang cac Led trn cac ct, cac ma 8 bit nay vit theo kiu hinh hay dang con ch ma Ban mun no hin ra trn bang en. Cac day ma 8 bit nay chung ta se cho ct trong cac bang, sau nay se dung cu lnh movc a, @a + dptr ly cac day ma ra cho xut trn cac cang cua ic AT89C51. Sau y la oan chng trinh vit cho xut ma quet trn p2, p3, p0 va ma hinh xut trn cang p1. h1b: ;t tn nhan dung cho lnh nhy mov r0, #11111110b ; t tri khi u dung cho lnh quay vong mov r1, #00h ; t tri khi u dung cho lnh ly ma hinh hay ch ll1b: mov a, r0 ; chuyn tri trong r0 vao thanh a rr a ; cho 8 bit trong a quay vong qua hng phai
mov r0, a ; chuyn tri trong thanh a ra r0 mov p1, r0 ; cho xut tri trong thanh a ra cang p1 mov a, r1 ; chuyn tri trong thanh r1 vao thanh a movc a, @a + dptr ; truy ly ma hinh trong bang cho ct vao thanh a mov p2, a ; cho xut ma hinh trn cang p2 inc r1 ; tng tri trong thanh r1 ln +1 ly ma hinh tip theo mov a, r1 ; chuyn tri r1 vao thanh a movc a, @a + dptr ; truy ly ma hinh trong bang cho ct vao thanh a mov p3, a ; cho xut ma hinh trn cang p3 inc r1 ; tng tri trong thanh r1 ln +1 ly ma hinh tip theo mov a, r1 ; chuyn tri r1 va thanh a movc a, @a + dptr ; truy ly ma hinh trong bang cho ct vao thanh a mov p0, a ; cho xut ma hinh trn cang p0 inc r1 ; lai tng tri trong r1 ln +1 call del1 ; goi chng trinh lam chm mov p1, #11111111b ; tt 8 bit trn cang p1 mov p0, #00h ; tt 8 bit trn cang p0 mov p2, #00h ; tt 8 bit trn cang p2 mov p3, #00h ; tt 8 bit trn cang p3 call del1 ; goi chng trinh lam chm cjne r0, #11111110b, ll1b ; so sanh ma quet chon hng nhy ret ; quay lai sau lnh call
oan chng trinh nay vit ging nh oan trn, im khac bit la dung cu lnh rl a quay vong theo hng trai i hng chay hinh trn bang ma trn 8x24. Ma quet t trn cang p1, ma hinh ln lt cho ly ra xut trn cang p2, ri p3, ri p0. h1c: ; t tn nhan dung cho lnh nhy mov r0, #01111111b ; t tri khi u dung cho lnh quay vong mov r1, #00h ll1c: mov a, r0 ; chuyn tri trong r0 vao thanh a
rl a ; cho 8 bit trong thanh a quay vong theo hng trai mov r0, a ; chuyn tri trong thanh a vao thanh r0 mov p1, r0 ; cho xut tri trong thanh r0 ra cang p1 ; ly ma hinh xut trn cang p2 mov a, r1 movc a, @a + dptr mov p2, a ; ly ma hinh xut trn cang p3 inc r1 mov a, r1 movc a, @a + dptr mov p3, a ; ly ma hinh xut trn cang p0 inc r1 mov a, r1 movc a, @a + dptr mov p0, a ; tranh hinh bi lem inc r1 call del1 mov p1, #11111111b mov p0, #00h mov p2, #00h mov p3, #00h call del1 cjne r0, #01111111b, ll1c ret ; quay lai sau lnh call Mt minh hoa : Ma quet cho xut trn cac cang p2 ri p3 ri p0. Ma hinh xut trn cang p1.
Cho xut ma quet nhip nhanh trn cac cang p2, p3, p0 va cung luc cho xut ma hinh hay ch trn cang p1. Sau y la oan chng trinh vit cho trng hp 2 dung hin cac hinh va con ch trn bang ma trn 8x24. Phn tich cu lnh : ; Cac cu lnh cho xut ma quet trn cang p2, ma hinh trn p1 h1: ; t tn nhan dung cho lnh nhy mov r0, #00000001b ; t tri khi u cho thanh r0 mov r1, #00h ; tra thanh r1 v tri 0 ll1: mov a, r0 ; cho chuyn tri trong r0 va thanh a rr a ; cho cac 8 bit trong thanh a, quay vong qua theo hng bn phai mov r0, a ; chuyn tri co trong thanh a vao thanh r0 mov p2, r0 ; cho xut tri trong r0 ra cang p2 mov a, r1 ; by gi chuyn tri trong r1 vao thanh a
movc a, @a + dptr ; ly ma 8 bit trong bang theo tri trong a, ri cho ct vao thanh a mov p1, a ; cho xut tri nay trn cang p1 inc r1 ; cho tng tri trong r1 ln +1 chun bi ly dong ma tip theo call del1 ; goi chng trinh lam chm tao mc sang cho cac led mov p2, #00h ; cho 8 chn cua cang p2 xung mc 0 tt cac Led. mov p1, #0ffh ; Cho 8 chn cua cang p1 ln mc 1 cung tt Led call del1 ; cho goi tring lam chm xoa cac Led tranh lem cjne r0, #00000001b, ll1 ; so sanh tri trong r0, nu thy cha quay u 8 nhip thi tip tuc. ; Cac cu lnh cho xut ma quet trn cang p3, ma hinh trn cang p1 ll2: ; t tn nhan dung cho lnh nhy mov a, r0 ; lai chuyn tri trong r0 vao a rr a ; cho quay vong 8 bit trong a theo hng bn phai mov r0, a ; chuyn tri trong thanh a vao r0 mov p3, r0 ; cho xut tri trong r0 ra trn cang p3 mov a, r1 ; chuyn tri co trong r1 vao thanh a movc a, @a + dptr ; cho ly ma trong bang ct vao a mov p1, a ; cho tri trong a xut ra trn cang p1 inc r1 ; tng tri trong r1 ln +1 ly dong ma hinh tip theo call del1 ; goi chng trinh lam chm mov p3, #00h ; t 8 chn cua cang p3 xung mc 0 mov p1, #0ffh ; t 8 chn cua cang p1 ln mc 1 call del1 ; cho goi chng trinh lam chm cjne r0, #00000001b, ll2 ; so sanh tri trong r0 inh hng nhy ; Cac cu lnh cho xut ma quet trn cang p0, ma hinh trn cang p1 ll3: ; t tn nhan dung cho lnh nhy mov a, r0 ; chuyn tri trong thanh a vao thanh r0 rr a ; cho 8 bit trong thanh a quay vong qua hng phai mov r0, a ; chuyn tri trong thanh a tr lai r0 mov p0, r0 ; cho tri trong r0 xut ra trn cang p0 mov a, r1 ; chuyn tri trong r1 vao thanh a movc a, @a + dptr ; ly ma 8 bit trong bang ct vao thanh a mov p1, a ; cho tri trong a xut ra trn cang p1 inc r1 ; tng tri trong r1 ln +1 ly dong ma k tip
call del1 ; goi chng trinh lam chm mov p0, #00h ; t 8 chn cua cang p0 xung mc 0 mov p1, #0ffh ; t 8 bit cua cang p1 ln mc 1 call del1 ; goi chng trinh lam chm cjne r0, #00000001b, ll3 ; so sanh tri trong r0 inh hng nhy ret ; quay lai sau lnh call
Cach 2 :
Ma quet cho xut trn p1va ma hinh hay ch cho xut trn cang p2, p3, p0 Mt minh hoa : Cho xut ma quet nhanh trn cang p1, cac ma hinh ln lt cho xut trn cang p2, cang p3, cang p0
Phn tich cu lnh :
; t tn nhan cho lnh nhy mov r0, #11111110b ; t tri khi u cho nhip quet mov r1, #00h ; tra tri khi u cho r1 v 0 ll1b: mov a, r0 ; chuyn tri r0 vao thanh a rr a ; cho 8 bit trong a quay vong qua phai mov r0, a ; chuyn tri trong a ra r0 mov p1, r0 ; cho xut tri trong r0 ra cang p1 mov a, r1 ; chuyn tri r1 vao a movc a, @a + dptr ; ly ma ia chi trong bang cho ct vao thanh a mov p2, a ; cho xut 8 bit ma hinh ra trn cang p2 inc r1 ; tng tri trong r1 ln +1 mov a, r1 ; lai chuyn tri trong r1 vao thanh a movc a, @a + dptr ; lai ly tip 8 bit ma hinh ct vao thanh a mov p3, a ; cho xut 8 bit ma hinh ra trn cang p3 inc r1 ; mt ln na lai tng tri trong r1 ln +1 mov a, r1 ; lai chuyn tri cua r1 vao thanh a movc a, @a + dptr ; lai ly tip 8 bit ma hinh cho ct vao thanh a mov p0, a ; by gi cho xut 8 bit ma hinh ra trn cang p0 inc r1 ; lai tng tri r1 ln +1, chun bi ly tip cac ma hinh tip theo call del1 ; goi chng trinh lam chm mov p1, #11111111b ; xoa xung quet tranh lem hinh mov p0, #00h ; xoa ma hinh trn p0 mov p2, #00h ; xoa ma hinh trn p2 mov p3, #00h ; xoa ma hinh trn p3 call del1 ; goi chng trinh lam chm cjne r0, #11111110b, ll1b ; so sanh tri trong a vi ma quet khi u nhy. ret ; quay lai sau lnh call h1b:
Phn tich cach vit ch ng trinh ngun tng h p : org bd: 0000h ; khi u chng tring ngun slan equ 20h ; t tn slan "s ln" cho thanh 20h call xoa ; goi chng trinh xoa
r3, #0 ; t tri 3 vao thanh r1 h2 ; cho goi trinh m man mov p1, #11111111b ; xoa mov dptr, #b_1 ; cho hin ch Phuc st: mov r4, #10 ; nap tri 10 vao thanh r4 tta: call h1 ; cho goi chng trinh co tn nhan h1 djnz r4, tta ; cho lp lai call h1 10 ln ; inc dptr ; tam dng di ch Phuc inc r3 ; tng tri r3 theo bc +1 cjne r3, #26, st ; so sanh tri trong r3 inh hng nhy mov r3, #0 ; tra tri trong r3 v 0 mov p1, #11111111b ; cho tt 8 bit trn cang p1 mov dptr, #b_2 ; cho hin ch Lan st2: mov r4, #10 ttb: call h1 djnz r4, ttb ; inc dptr inc r3 cjne r3, #26, st2 mov 3, #0 call h4a ; bo man xung call h4 ; keo man ln call xoa mov dptr, #b_2b ; cho hin ch N st21: mov r4, #2 ttb1: call h1 djnz r4, ttb1 ; inc dptr inc r3 cjne r3, #26, st21 mov 3, #0 call xoa mov dptr, #b_2ba ; cho hin ch NH st21a: mov r4, #2 ttb1a: call h1 djnz r4, ttb1a ; inc dptr inc r3 mov call
cjne mov 3, #0 mov st21b: ttb1b: ; mov 3, #0
r3,
#26, ch
st21a xoa NH #2 h1 ttb1b dptr r3 st21b xoa NHT #10 h1 ttb1c dptr r3 st21c xoa T #2 h1 ttb2 dptr r3 st22
call dptr, #b_2bb ; cho hin mov r4, call djnz r4, inc inc cjne r3, #26, call dptr, #b_2bc mov call djnz r4, inc inc r3, call #b_2c mov call djnz r4, inc inc r3, ; cho r4, r4, #26, #26, hin ; cho r4, #26, hin ; cho hin r4,
mov st21c: ttb1c: ;
ch
cjne mov 3, #0 mov st22: ttb2: ; cjne mov 3, #0 mov st22a: ttb2a: ; mov 3, #0 dptr,
ch
call dptr, #b_2ca mov call djnz inc inc cjne r3,
xoa ch T #2 h1 ttb2a dptr r3 st22a
call mov st22b: ttb2b: ; cjne mov 3, #0 call h4a call h4 ; keo man ln dptr, #b_2cb mov call djnz inc inc r3, ; ha r4, ; cho r4,
hin
ch
#26, man
xoa TN #10 h1 ttb2b dptr r3 st22b xung xoa chay #20 h1 tte1 dptr r3 st5a xoa #3 Chao #10 h1 ttd dptr r3 st4 #0 #00h #00h #00h xoa Ban #10 h1 ttd1
call mov dptr, #b_2a ; cho hin ch Phuc Lan, ch st5a: mov r4, tte1: call djnz r4, inc inc cjne r3, #54, mov r3, #0 call mov slan, ttuc: mov dptr, #b_4 ; cho hin ch st4: mov r4, ttd: call djnz r4, ;inc inc cjne r3, #10, mov r3, mov p0, mov p2, mov p3, call delay call mov dptr, #b_4b ; cho hin ch st4a: mov r4, ttd1: call djnz r4,
cjne mov mov mov mov
;inc inc r3, r3, p0, p2, p3, call
#10,
dptr r3 st4a #0 #00h #00h #00h delay
djnz slan, ttuc st3: ttc: call xoa mov dptr, #b_3 ; cho hin ch Tap chi in t Vit Nam, ch chay mov r4, #15 call h1 djnz r4, ttc inc dptr inc r3 cjne r3, #122, st3 mov r3, #0 call xoa mov dptr, #b_5 ; PHONE : 39235347, hin s in thoai, ch chay mov r4, #20 call h1 djnz r4, tte inc dptr inc r3 cjne r3, #79, st5 mov r3, #0 call h4a ; ha man xung call h4 ; keo man ln call xoa mov dptr, #b_9 ; cho hin hinh hang cy mov r4, #20 call h1 djnz r4, tti inc dptr inc r3 cjne r3, #26, st9 mov 3, #0
st5: tte:
st9: tti: ;
call
mov slan, lamt: mov dptr, #b_10 ; hin hinh mov r3, qlai: mov r2, llai: call djnz r2, inc inc inc inc cjne r3, #16, djnz slan, lamt call xoa mov dptr, #b_6 ; hin hang ch CHUYEN BAN CAC LINH KIEN DIEN TU ABCDEFGHIJKLMNOPQ st6: mov r4, #8 ttf: call h1 djnz r4, ttf inc dptr inc r3 cjne r3, #255, st6 mov r3, #0 call xoa mov dptr, #b_7 ; hin hang ch RSTXYZUVW st7: mov r4, #8 ttg: call h1 djnz r4, ttg inc dptr inc r3 cjne r3, #52, st7 mov r3, #0 call xoa mov slan, #6 lamt1: mov dptr, #b_11 ; cho hin hinh Logo 2 mov r3, #0 qlai1: mov r2, #12 llai1: call h1b djnz r2, llai1
xoa #14 Logo 1 #0 #12 h1b llai dptr dptr dptr r3 qlai
cjne djnz slan, lamt1 lamt2: qlai2: llai2: mov dptr, mov #b_12 ; mov mov djnz
inc inc inc inc r3, call cho call r2, inc inc inc inc r3, call
#16, slan, hin hinh r3, r2,
dptr dptr dptr r3 qlai1 xoa #2 3 in tr #0 #50 h1b llai2 dptr dptr dptr r3 qlai2 xoa #10 #0 #40 h1c llai3 dptr dptr dptr r3 qlai3 xoa #4 Logo 5 #0 #12 h1b llai4
Logo
cjne djnz slan, lamt2
#16,
mov slan, lamt3: mov dptr, #b_13 ; cho hin hinh Logo 4 giot nc mov r3, qlai3: mov r2, llai3: call djnz r2, inc inc inc inc cjne r3, #16, djnz slan, lamt3 call mov slan, lamt4: mov dptr, #b_14 ; cho hin hinh mov r3, qlai4: mov r2, llai4: call djnz r2,
cjne djnz slan, lamt4 mov st8: tth: ; cjne mov 3, #0 call call delay jmp bd h2: ; trinh mov mov mov mov h3 dptr, mov djnz
inc inc inc inc r3, call #b_8 ; call hin
#16, hinh cn
dptr dptr dptr r3 qlai4 xoa nha #30 h1 tth dptr r3 st8 ln delay
r4, r4,
inc inc r3, call ; keo
#26, man
m p1, p0, p2, p3, call p3, call p3, call p3, call p3, call p2, p0, call p2, p0,
mov mov mov mov mov mov mov mov
man #00h #0ffh #0ffh #0ffh delay #11100111b delay #11000011b delay #10000001b delay #00000000b delay #11111110b #01111111b delay #11111100b #00111111b
call mov mov call mov mov call mov mov call mov mov call mov mov call mov mov call call ret h3: ; trinh keo mov mov mov mov mov mov call mov mov call mov mov call mov mov call p2, p0, p2, p0, p2, p0, man, sang p1, p0, p2, p3, p2, p0, t 2 p2, p0, p2, p0, p2, p0, p2, p0, p2, p0, p2, p0,
delay #11111000b #00011111b delay #11110000b #00001111b delay #11100000b #00000111b delay #11000000b #00000011b delay #10000000b #00000001b delay #00000000b #00000000b delay delay vao #00h #00h #00h #00h delay #10000000b #00000001b delay #11000000b #00000011b delay #11100000b #00000111b delay #11110000b #00001111b delay bn
call
mov mov call mov mov call mov mov call mov mov call mov call mov call mov call mov call call ret h4: ; keo
p2, p0, p2, p0, p2, p0, p2, p0, p3, p3, p3, p3,
#11111000b #00011111b delay #11111100b #00111111b delay #11111110b #01111111b delay #11111111b #11111111b delay #10000001b delay #11000011b delay #11100111b delay #11111111b delay delay
mov mov mov mov call call setb call setb call setb call setb call setb
man p1, p0, p2, p3,
ln. #00h #0ffh #0ffh #0ffh delay delay p1.7 delay p1.6 delay p1.5 delay p1.4 delay p1.3
call setb call setb call setb call call ret h4a: ; ha mov call call mov mov mov clr call mov mov mov clr call mov mov mov clr call mov mov mov clr call mov mov mov clr call mov p0, p0, p2, p3, p0, p2, p3, p0, p2, p3, p0, p2, p3, p0, p2, p3, p1,
delay p1.2 delay p1.1 delay p1.0 delay delay man xung #0ffh delay delay #0ffh #0ffh #0ffh p1.0 delay #0ffh #0ffh #0ffh p1.1 delay #0ffh #0ffh #0ffh p1.2 delay #0ffh #0ffh #0ffh p1.3 delay #0ffh #0ffh #0ffh p1.4 delay #0ffh
mov mov clr call mov mov mov clr call mov mov mov clr call call ret
p2, p3, p0, p2, p3, p0, p2, p3,
#0ffh #0ffh p1.5 delay #0ffh #0ffh #0ffh p1.6 delay #0ffh #0ffh #0ffh p1.7 delay delay
; oan chng trinh dung in hinh trn ma trn 8x24, ma hinh xut trn cang p1 h1: ; t tn nhan dung cho lnh nhy mov r0, #00000001b ; t tri khi u cho lnh quay vong mov r1, #00h ; t tri khi u dung ly ma hinh trong bang ll1: mov a, r0 ; chuyn tri trong r0 vao thanh a dung lnh rr a rr a ; cho 8 bit trong thanh a quay vong theo hng phai mov r0, a ; chuyn tri trong a tr lai thanh r0 mov p2, r0 ; cho xut tri trong r0 ra cang p2 mov a, r1 ; chuyn tri trong r1 vao thanh a movc a, @a + dptr ; truy ly ma hinh trong bang ct vao thanh a mov p1, a ; cho xut ma hinh trong a ra cang p1 inc r1 ; tng tri trong call mov p2, #00h mov p1, #0ffh call cjne r0, #00000001b, ll1 hng nhy r1 ln +1 ly ma hinh tip theo del1 ; goi tr ; tt 8 bit trn cang p2 ; tt bit trn cang p1 del1 ; goi tr ; so sanh thanh r0 vi ma quet chon
ll2:
mov a, r0 ; chuyn tri trong r0 vao thanh a rr a ; cho 8 bit trong thanh a quay vong theo hng phai mov r0, a ; chuyn tri trong a vao thanh r0 mov p3, r0 ; cho tri ma quet trong r0 xut ra cang p3 mov a, r1 ; chuyn tri trong thanh r1 vao thanh a movc a, @a + dptr ; truy ly ma hinh trong bang ct vao thanh a mov p1, a ; cho xut ma hinh trong a ra cang p1 inc r1 ; tng tri trong r1 ln +1 ly ma hinh tip theo call del1 ; goi tr mov p3, #00h ; tt 8 bit trn cang p3 mov p1, #0ffh ; tt 8 bit trn cang p1 call del1 ; goi tr cjne r0, #00000001b, ll2 ; so sanh r0 va ma quet chon hng mov a, r0 ; chuyn tri trong r0 vao thanh a rr a ; cho 8 bit trong thanh a quay vong theo hng phai mov r0, a ; chuyn tri trong thanh a tr lai thanh r0 mov p0, r0 ; cho xut tri ma quet trong r0 ra cang p0 mov a, r1 ; chuyn tri trong thanh r1 vao thanh a movc a, @a + dptr ; truy ly ma hinh trong bang ct vao thanh a mov p1, a ; cho xut tri ma hinh trong thanh a ra cang p1
nhy ll3:
inc r1 ; tng tri trong r1 ln +1 call del1 ; mov p0, #00h ; cho tt mov p1, #0ffh ; cho tt call del1 ; cjne r0, #00000001b, ll3 ; so sanh tri hng ret ; quay lai sau lnh call del1: v6: mov mov djnz
ly ma hinh tip theo goi tr 8 bit trn cang p0 8 bit trn cang p1 goi tr trong r0 vi ma quet inh nhy
r7, r6, r6,
#3 #50 $
djnz ret delay: v6a: v5: mov mov mov djnz djnz djnz mov mov mov mov ret p0, p2, p3, p1,
r7,
v6
r7, r6, r5, r5, r6, r7,
xoa:
#5 #50 #250 $ v5 v6a ret #00000000b #00000000b #00000000b #11111111b
; oan chng trinh cho xut ma hinh trn cang p2, p3, p0 h1b: mov r0, #11111110b mov r1, #00h ll1b: mov a, r0 rr a mov r0, a mov p1, r0 mov a, r1 movc a, @a + dptr mov p2, a inc r1 mov a, r1 movc a, @a + dptr mov p3, a inc r1 mov a, r1 movc a, @a + dptr mov p0, a inc r1 call del1 mov p1, #11111111b mov p0, #00h
mov mov call cjne ret r0,
p2, p3, #11111110b,
#00h #00h del1 ll1b
; oan chng trinh cho xut ma hinh trn cang p2, p3, p0 h1c: mov r0, #01111111b mov r1, #00h ll1c: mov a, r0 rl a mov r0, a mov p1, r0 mov a, r1 movc a, @a + dptr mov p2, a inc r1 mov a, r1 movc a, @a + dptr mov p3, a inc r1 mov a, r1 movc a, @a + dptr mov p0, a inc r1 call del1 mov p1, #11111111b mov p0, #00h mov p2, #00h mov p3, #00h call del1 cjne r0, #01111111b, ll1c ret ; cac bang dung b_1: ; db db 00000001b db 00000001b t ma tao hinh va ch do ch Ban soan Phuc 11111111b t
db db db db db 00000001b db 00000001b db db db 00000001b db db db 00000001b db 01111101b db 01111110b db db db db 00000001b db 01111101b db 01111101b db 10011011b b_2: ; db db db db 00000001b db 00000001b db 01111111b db 01111111b db 01111111b db db 00000111b db 00000011b db db db 00000111b db db 00000001b tao ch
11101101b 11101101b 11110011b 11111111b 11101111b 11101111b 11111111b 10000001b
10000001b 11111111b 10000011b
Lan 11111111b 11111111b 11111111b
11111111b 11011101b 11011011b 11111111b
db 00000011b db db db 00000001b db db db db 11111111b b_2a: ; db db db 00000001b db 00000001b db db db db db 00000001b db 00000001b db db db 00000001b db db db 00000001b db 01111101b db 01111110b db db db db 00000001b db 01111101b db 01111101b db db db db db tao ch Phuc *
11110111b 11101111b 11111111b 11111111b 11111111b Lan 11111111b 11111111b 11101101b 11101101b 11110011b 11111111b 11101111b 11101111b 11111111b 10000001b
10000001b 11111111b 10000011b
10011011b 11111111b 11111111b 10111011b 11010111b
db 00000001b db db db db db 00000001b db 00000001b db 01111111b db 01111111b db 01111111b db db 00000111b db 00000011b db db db 00000111b db db 00000001b db 00000011b db db db 00000001b db db db db db db db db db db db db db db db db db
11010111b 10111011b 11111111b 11111111b
11111111b 11011101b 11011011b 11111111b 11110111b 11101111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b
db db db db db db db 11111111b b_2b: ; db db 00000011b db db db db 00000011b db db db db db db db db db db db db db db db db db db db 11111111b b_2ba: ; db db 00000011b db db db
11111111b 11111111b 11111111b 11111111b 11111111b 11111111b tao ch N 11111111b 11110111b 11101111b 11011111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b tao ch NH 11111111b 11110111b 11101111b 11011111b
db 00000011b db db 00000011b db db db db 00000011b db db db db db db db db db db db db db 11111111b b_2bb: ; db db 00000011b db db db db 00000011b db db 00000011b db db db db 00000011b db db 00001111b db db 01011010b db db 00001111b
11111111b 11011111b 11011111b 11011111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b tao ch NH 11111111b 11110111b 11101111b 11011111b 11111111b 11011111b 11011111b 11011111b 11111111b 11010101b 11010101b
db db db db db db db 11111111b b_2bc: ; db db 00000011b db db db db 00000011b db db 00000011b db db db db 00000011b db db 00001111b db db 01011010b db db 00001111b db db db db 00000011b db db db 11111111b b_2c: ; db db db db db
11111111b 11111111b 11111111b 11111111b 11111111b 11111111b tao ch NHT 11111111b 11110111b 11101111b 11011111b 11111111b 11011111b 11011111b 11011111b 11111111b 11010101b 11010101b 11111111b 11111011b 11111011b 11111011b 11111011b tao ch T 11111111b 11111111b 11111111b 11111011b 11111011b
db 00000011b db db db db db db db db db db db db db db db db db db db 11111111b b_2ca: ; db db db db db db 00000011b db db db db db 00001111b db db db db 00001111b db db db
11111011b 11111011b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b tao ch T 11111111b 11111111b 11111111b 11111011b 11111011b 11111011b 11111011b 11111111b 11111111b 11010101b 11011010b 11010101b 11111111b 11111111b 11111111b
db db db db db db db 11111111b b_2cb: ; db db db db db db 00000011b db db db db db 00001111b db db db db 00001111b db db db 00000011b db db db db 00000011b db db db 11111111b b_3: ; tao db db db db 00000001b db
11111111b 11111111b 11111111b 11111111b 11111111b 11111111b tao ch TN 11111111b 11111111b 11111111b 11111011b 11111011b 11111011b 11111011b 11111111b 11111111b 11010101b 11011010b 11010101b 11111111b 11111111b 11110111b 11101111b 11011111b 11111111b 11111111b ch Tap Chi in T Vit Nam 11111111b 11111101b 11111101b 11111101b
db db db 00001111b db db 01011011b db db 00001111b db db 00000011b db db db db db db db db db db db 01111011b db 01111011b db 01111011b db db db 00000011b db db db db 00000011b db db 00000011b db db db db db db 00000001b db 01101101b db 01101101b
11111101b 11111111b 11010111b 11010111b 11111111b 11011011b 11011011b 11011011b 11100111b 11111111b 11011111b 11011111b 11011111b 11111111b 10000111b
10110111b 11111111b 11101111b 11101111b 11101111b 11111111b 11111111b 11011101b 11011110b 11011111b 11111111b
db 01111101b db db db 00000010b db db 00000111b db 01010101b db 01010110b db 01010101b db 01110111b db db 00000011b db db db db 00000011b db db db db db db db db 00000001b db db db db db 01111111b db 01110010b db 01111101b db db db db db db db db
10000011b 11111111b 11111111b
11111111b 11110111b 11101111b 11011111b 11111111b 11011111b 11011111b 11011111b 11111111b 11111101b 11111101b 11111101b 11111101b 11111111b 10000111b
10000111b 11111001b 11011111b 11011111b 11011111b 11111111b 11000001b 10111111b
db 01111111b db db db db 00000010b db db 00000111b db 01010101b db 01010110b db 01010101b db 01110111b db db db db 00000011b db db db db db db db db 00000001b db db db db 00000001b db db 00001111b db db db db 00001111b db db 00000011b db db db db 00000011b
10111111b 11000001b 11111111b 11111111b
11111111b 11111011b 11111011b 11111011b 11111011b 11111111b 11101111b 11101111b 11101111b 11111111b 11111011b 11110111b 11101111b 11111111b 10110111b 10111011b 10110111b 11111111b 11110111b 11101111b 11110111b
db db db db db db db db db db db db db db db db db db db db db db db db db 11111111b b_4: ; db db 01111011b db 01111011b db 01111011b db db db 00000011b db db db db 00000011b db tao ch
11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b Chao 10000111b
10110111b 11111111b 11011111b 11011111b 11011111b 11111111b
db 00001111b db db db db 00001101b db db db 01111011b db 01111011b db 01111011b db db 11111111b b_4b: ; db db db 00000011b db 01101011b db 01101011b db 01101011b db db db db 00001111b db db 01011011b db db 00001111b db db db 00000011b db db db db 00000011b db db db 11111111b tao ch
11010111b 11011011b 11010110b 11111111b 10000111b
10000111b Ban 11111111b 11111111b
10010111b 11111111b 11111111b 11010111b 11010111b 11111111b 11111111b 11110111b 11101111b 11011111b 11111111b 11111111b
b_5: ; db db db 00000011b db db db db db 00000011b db db db 00000011b db db db 01111011b db 01111011b db db db 00000011b db db db 00000011b db db 00000011b db 01101011b db 01101011b db db db db db db db db db db db db db
tao
ch
Phone:
39235347 11111111b 11111111b 11011011b 11011011b 11100111b 11111111b 11101111b 11101111b 11111111b 10000111b 10000111b 11111111b 11110111b 11101111b 11111111b
11111111b 11111111b 11101111b 11010111b 10111011b 11010111b 11010111b 10111011b 11010111b 11101111b 11111111b 11111111b 10111011b
db 01111101b db 01101101b db 01101101b db db db 01110011b db 01101101b db 01101101b db 01101101b db db db 00111011b db 01011101b db 01011101b db 01011101b db 01100011b db db db 01111101b db 01101101b db 01101101b db db db db 01110101b db 01110101b db 01110101b db db db db 01111101b db 01101101b db 01101101b db db db db db db 00000001b
10010011b 11111111b
10000011b 11111111b
11111111b 10111011b
10010011b 11111111b 10110001b
10001101b 11111111b 10111011b
10010011b 11111111b 11001111b 11010111b 11011011b
db db db db db 00001101b db db db db db db db db db db db db db db db db db db db db db db db db db db 11111111b b_6: ; tao ch db db 01111011b db 01111011b db 01111011b db db db 00000011b Chuyn Mua Ban Cac Linh
11011111b 11111111b 11111001b 11111101b 11110101b 11111001b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b Kin in T 10000111b
10110111b 11111111b
db db db db 00000011b db db db 01111111b db 01111111b db 01111111b db db db db db 00011111b db db db db 00000111b db 01010101b db 01010110b db 01010101b db 01110111b db db 00000011b db db db db 00000011b db db db db 00000011b db db db db 00000011b db db db 01111111b
11101111b 11101111b 11101111b 11111111b 10000011b
10000011b 11111111b 11110011b 11101111b 11101111b 11110011b 11111111b
11111111b 11110111b 11101111b 11011111b 11111111b 11111111b 11111111b 11110111b 11101111b 11110111b 11111111b 10000011b
db 01111111b db 01111111b db db db 00001111b db db db db 00001111b db db db db 00000011b db 01101011b db 01101011b db 01101011b db db db 00001111b db db db db 00001101b db db 00000011b db db db db 00000011b db db db db db 01111011b db 01111011b db 01111011b db db db 00001111b
10000011b 11111111b 10110111b 10111011b 10110111b 11111111b 11111111b 11111111b
10010111b 11111111b 10110111b 10111011b 10110111b 11111110b 11110111b 11101111b 11011111b 11111111b 11111111b 11111111b 10000111b
10110111b 11111111b
db db db db 00001101b db db db 01111011b db 01111011b db 01111011b db db db db db 00000011b db 01111111b db 01111111b db 01111111b db 01111111b db db 00000101b db db 00000011b db db db db 00000011b db db 00000011b db db db db 00000011b db db db db 00000011b db db db
10110111b 10111011b 10110111b 11111110b 10000111b
10110111b 11111111b 11111111b 11111111b
11111111b 11111111b 11110111b 11101111b 11011111b 11111111b 11011111b 11011111b 11011111b 11111111b 11111111b 11111111b 11011111b 11001111b 10110111b
db 01111111b db db 00000101b db db 00000111b db 01010011b db 01010101b db 01010011b db 01110111b db db 00000011b db db db db 00000011b db db db db 00000011b db 01011011b db 01011011b db 01111011b db db db 00000101b db db 00000111b db 01010011b db 01010101b db 01010011b db 01110111b db db 00000011b db db db db 00000011b db db
11111111b 11111111b
11111111b 11110111b 11101111b 11011111b 11111111b 11111111b 11111111b
10000111b 11111111b 11111111b
11111111b 11110111b 11101111b 11011111b 11111111b 11111111b
db db db db 00000011b db db db db db 01111111b db 01110010b db 01111101b db db db db db 00000111b db db db db 00000111b db db 00000001b db 01101101b db 01101101b db 01101101b db db db db 01111101b db 01111101b db 01111101b db db db db db db db db
11111111b 11111011b 11111011b 11111011b 11111011b 11111111b 10000011b
10000111b 11111001b 11111111b 11111111b 11011011b 11011101b 11011011b 11111111b
10010011b 11111111b 10000011b
10111011b 11111111b 00000001b 01111101b 01111101b 01111101b 10000011b 11111111b
db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db
00000001b 01101101b 01101101b 01101101b 01111101b 11111111b 00000001b 11101101b 11101101b 11101101b 11111101b 11111111b 10000011b 01111101b 01101101b 01101101b 10001011b 11111111b 00000001b 11101111b 11101111b 11101111b 00000001b 11111111b 00000001b 11111111b 10111101b 01111101b 10000001b 11111101b 11111101b 11111111b 00000001b 11101111b 11010111b 10111011b 01111101b 11111111b 00000001b
db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db db 11111111b b_7: ; db tao mu cac con
01111111b 01111111b 01111111b 01111111b 11111111b 00000001b 11111011b 11110111b 11111011b 00000001b 11111111b 00000001b 11111011b 11110111b 11101111b 00000001b 11111111b 10000011b 01111101b 01111101b 01111101b 10000011b 11111111b 00000001b 11101101b 11101101b 11101101b 11110011b 11111111b 10000011b 01111101b 01111101b 01011101b 10000011b 01111111b ch 11111111b
db 00000001b db db db db 01110011b db db db 01110101b db 01101101b db db db db db 00000001b db db db db db 01111111b db 01111111b db 01111111b db db db db db 01111111b db db db db db 01111111b db db 01111111b db db db 01111101b db db db
11101101b 11001101b 10101101b 11111111b 10011011b 10011011b 11111111b 11111101b 11111101b 11111101b 11111101b 11111111b 10000001b
10000001b 11111111b 11000001b 10111111b 10111111b 11000001b 11111111b 10000001b 10011111b 10000001b 11111111b 11011011b 11110111b 11011011b
db 01111101b db db db db 00001111b db db db db 00111101b db 01011101b db 01101101b db 01110101b db 01111001b db db db db db db db db db db db db db db db db db db db db db db db db db 11111111b
11111111b 11111001b 11110111b 11110111b 11111001b 11111111b
11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b
b_8: ; tao db 01110011b db 00001101b db 01110011b db 00000111b db 01111011b db 01000101b db 01010110b db 01000100b db 01111000b db 00000000b db 01110000b db 01110000b db 01110000b db 01110000b db 01110000b db 01110001b db 00000011b db 00110111b db 00011111b db 00001111b db 00111001b db 00000110b db 00111001b db 01111111b b_9: ; db 00111111b db 01111001b db 00000110b db 01111001b db 00111111b db 00000111b db 00001111b db 00111111b db 00111111b db 00000011b db 00011111b tao
hinh
cn
nha
va
cy
hinh
rng
cy
db 00000011b db 00000000b db 00000111b db 00011111b db 00111111b db 01110001b db 00000000b db 01110001b db 01111111b db 00111111b db 00011111b db 00000111b db 00011111b db db db db db db db db db db db db db db db db db db db db db 11111111b b_10: ; db db db tao
11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b hinh hoa vn 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b
db db db db db db db db db 10010010b,10010010b,10010010b db db db db db db db db db db db db 00000000b,00000000b,00000000b b_11: ; tao hinh db db db db db db db db db db db db db 11111110b,01111111b,00111111b db db db 11000110b,01100011b,00110001b
00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 01000100b,01000100b,01000100b 00101000b,00101000b,00101000b 01000100b,01000100b,01000100b 01000100b,01000100b,01000100b 00101000b,00101000b,00101000b 01000100b,01000100b,01000100b 00101000b,00101000b,00101000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b cac mui tn 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00010000b,00001000b,00000100b 00111000b,00011100b,00001110b 01111100b,00111110b,00011111b 01000100b,00100010b,00010001b
db db db db db db db db 00000000b,00000000b,00000000b b_12: ; tao hinh cac db 11111111b,11111111b,11111111b db 10000000b,00001100b,11000001b db 10000000b,00001110b,11000001b db 10000001b,11111111b,11111001b db 10000000b,00001110b,11000001b db 10000000b,00001100b,11000001b db 10000000b,00001000b,00000001b db 11111111b,11111111b,11111111b db db 11111111b,11111111b,11111111b db 10000000b,00000000b,00000001b db 10000010b,00100010b,00000001b db 10011101b,01010101b,01110001b db 10000000b,10001000b,10000001b db 10000000b,00000000b,00000001b db 11111111b,11111111b,11111111b db db db db db db db db 00000000b,00000000b,00000000b b_13: db db db ; tao hinh
00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b ky hiu in t
00000000b,00000000b,00000000b
00000000b,00000000b,00000000b 00000000b,01001000b,00000000b 00000000b,01001000b,00000000b 00011111b,11001111b,11100000b 00000000b,01001000b,00000000b 00000000b,01001000b,00000000b 00000000b,00000000b,00000000b cac bng hoa 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b
db db db db db db db db db 10001001b,10001001b,10001001b db db db db 11111111b,11111111b,11111111b db db db db db db db db 00000000b,00000000b,00000000b b_14: ; tao hinh db db db db db db db db db db db 11111011b,11101111b,10111110b db db db db db
00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00011100b,00011100b,00011100b 00111110b,00111110b,00111110b 00011100b,00011100b,00011100b 01001010b,01001010b,01001010b 00101100b,00101100b,00101100b 00011000b,00011000b,00011000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b cac giot nc 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00100000b,10000010b,00001000b 01110001b,11000111b,00011100b 01110001b,11000111b,00011100b 00000100b,00010000b,01000000b 00001110b,00111000b,11100000b 00011111b,01111101b,11110000b 00001110b,00111000b,11100000b
db db db db db db db db end
00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b 00000000b,00000000b,00000000b
Noi ro h n : Cach tao hinh trn bang en ma trn 8x24 Hi ve di y cho thy cach Ban tao ra khung ma hinh dung bit nh 0 tao hinh.
Mun in hinh ra trn bang ma trn 8x24, trc ht Ban hay t tn bang, ri tao khung hinh tng ng vi bang en. Mt thi du: b_8: ; t db 01110011b db 00001101b db 01110011b db 00000111b db 01111011b db 01000101b db 01010110b db 01000100b db 01111000b db 00000000b tn nhan cua bang ma hinh
db 01110000b db 01110000b db 01110000b db 01110000b db 01110000b db 01110001b db 00000011b db 00110111b db 00011111b db 00001111b db 00111001b db 00000110b db 00111001b db 01111111b Trn y la 24 dong ma 8 bit vit dang h c 2. Trong o ng vi vi tri bit 0 se lam cho Led sang. Hinh trn cho thy chung ta a dung bit 0 tao ra hinh mt ngi nha trn bang en. Tom lai, mun Led nao sang, chung ta t vao s 0, va s 1 se lam tt Led. Kt qua chung ta se co hinh hin ra nh sau:
Ban co th vit gon lai bang ma hinh trn nu dung ma 8 bit vit dang h 16, kt qua chung ta co bang ma hinh trn nh sau: b_8: ; t tn db 0111 0011b db 0000 1101b db 0111 0011b db 0000 db 0111 db 0100 db 0101 0110b db 0100 db 0111 db 0000 db 0111 0000b db 0111 0000b db 0111 0000b db 0111 0000b ; db 0111 0000b db 0111 0001b db 0000 db 0011 0111b db 0001 db 0000 1111b db 0011 db 0000 db 0011 db 0111 1111b ; 7fh nhan cua ; ; ; bang ma hinh 73h 0dh 73h 07h 7bh 45h 56h 44h 78h 00h 70h 70h 70h 70h 70h 71h 03h 37h 1fh 0fh 39h 06h 39h
0111b 1011b 0101b ; 0100b 1000b 0000b ; ; ; ; ; 0011b ; 1111b ; 1001b 0110b 1001b
; ; ; ; ; ;
; ; ; ; ;
Ghi nhn: Vit ma hinh dang h 16, tuy ngn gon hn, nhng Ban se khng nhin thy trong cac dong ma nay no la hinh gi va khi hinh hay ch bi sai rt kho sa lai cho ung. b_8: ; t tn nhan cua db 73h, 0dh, 73h, 07h, 7bh, 45h, 56h, 44h db 78h, 00h, 70h, 70h, 70h, 70h, db 03h, 37h, 1fh, 0fh, 39h, 06h, 39h, 7fh bang ma hinh 70h, 71h
Di y la mt khung hinh trng, vi toan bit 1 (tt Led), mun tao hinh trn cac im Led cua ma trn 8x24, Ban dung bit 0. b_vkh: ; t db db db db db db db db db db db db db db db db db db db db db db db db 11111111b tn nhan cho bang 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b ; 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b ; 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b 11111111b
11111111b
11111111b
Hi ve di y cho thy cach Ban dung bit 1 tao hinh nh
Ban co th t ma quet trn cang p1, va cho xut ma hinh trn cac cang p2, p3, p0. Luc nay ng vi bit 1 se lam cho Led sang. Ban xem mt thi du, minh hoa bng hinh sau:
Nh vy khung tao hinh cho kiu quet nay se nh sau: b_14: ; t tn nhan dung lnh mov dptr, #b_14 ; cu lnh nay cho t bang vao thanh ia chi dptr. db 00000000b,00000000b,00000000b db 00000000b,00000000b,00000000b db 00000000b,00000000b,00000000b db 00000000b,00000000b,00000000b db 00000000b,00000000b,00000000b db 00000000b,00000000b,00000000b db 00000000b,00000000b,00000000b db 00000000b,00000000b,00000000b Trn y la mt khung mu trng vi toan la bit 0, nu Ban mun co hinh gi hin trn ma trn 8x24, thi hay dung bit 1 lam sang cac Led cac vi tri
tng ng. Ban cung co th vit cac ma hinh 8 bit nay dang h c 16, luc o bang se ngn gon hn, nhng Ban se khng thy c hinh gi trn cac dong ma nay, va khi cn sa i se rt kho khn. Y kin chung ti :
Nu Ban mun lam thc hanh bai vit trn, u tin Ban phai co bang en ma trn 8x24 nh hinh trn, Ban co th mua ban mach in ca hang Phuc Lan Shop, sau o gn Led ln ban mach in va kt ni vi ic lp trinh AT89C52 (dung ic AT89C52 co b nh 8K ln hn ic AT89C51 chi co 4K). Tip theo Ban ct oan chng trinh ngun trn va dan vao vung bin soan cua MIDE-51 (xem hinh bn di), t cho no mt cai tn vi ho la .asm, ri go phim F9 bin dich file .asm ra file .hex, by gi Ban cho nap oan chng trinh ma h 16 nay vao b nh EEPROM cua ic lp trinh AT89C52, gn vao board test, Ban se thy hinh va dong ch ma Ban soan trong cac khung hinh xut hin trn bang en. Thich khng?
Sau khi bin dich xong, chung ta co file .hex nh sau: :1000000012043B7B001202347590FF9004A07C0A1E :100010001203D5DCFB0BBB1AF57B007590FF900437 :10002000B87C0A1203D5DCFB0BBB1AF57503001272 :10003000035812031A12043B90051B7C021203D5CD :10004000DCFB0BBB1AF575030012043B9005347CF6 :10005000021203D5DCFB0BBB1AF575030012043B3F :1000600090054D7C021203D5DCFB0BBB1AF5750322 :100070000012043B9005667C0A1203D5DCFB0BBB27
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Tam kt : Qua phn trinh bay trn, Ban thy dung ic lp trinh AT89C51, chung ta a co th iu khin c s tt sang cua bt ky con Led nao trn bang en, iu nay cho chung ta mt s thich thu kho ta, cung qua bai vit nay ti nghi Ban a lam quen vi cach dung bang Led ma trn lam hin hinh va cho chay ch, y la mt tai rt rt hp dn, khi co dip chung ti se tr lai tai nay vi mt mc rng hn, cao hn. Mong Ban thich bai vit nay.
Giy phut th gian .... Ban hay cung ti i dao mt vong thanh ph Quincy. Quincy nm phia nam cua Boston. Boston la thu phu cua bang Massachussets. Boston la vung t kinh ky cua My, ni y co hoc vin MIT, trng ai hoc Harvard va rt nhiu th vin, vin bao tang ni ting khp toan cu.
Hay click vao dong nay m xem