Trng i Hc Bch Khoa H NiVin in T - Vin
Thng--------------o0o-------------
TI LIU HNG DN S DNG KIT BKFET
Ph Lc 1
Li m u
.Qu trnh hc tp, nghin cu ca sinh vin a ra yu cu mi v ti liu hc
tp v thit b thc hnh. i vi thit b thc hnh trn nn FPGA v cc dng vi iu
khin, hin ti c hai nh sn xut ln cung cp kit pht trin: Xilinx v
Altera, Atmel. Tuy nhin, cc kit pht trin c gi c kh t v thc t i vi
qu trnh hc tp, mt s ng dng ca kit khng c dng n trong khi cc ng dng
n gin phc ph trc tip cho qu trnh hc ca sinh vin li thiu. Nh vy, t
ra yu cu v mt kit pht trin mi ph hp vi qu trnh hc tp cng vi th
nghim mu c thc hin trn kit.Vi mong mun cung cp kit pht trin v cc
dng vi diu khin, fpga v ti liu hng dn ph hp cho qu trnh hc tp, thc
hnh v h thng s trn nn fpga. Nhm em thc hin n vi ti: "Thit k kit pht
trin a nng v xy dng cc bi th nghim trn kit". Trong qu trnh thc hin
ti, em nhn c s gip , ch bo ca thy TS.Nguyn Hong Dng. Vi s n lc ca
bn thn, ca cc bn cng nhm ti v s gip ca thy, nhm em hon thnh ti theo
ng thi hn. Do cn nhiu thiu st v kin thc nn ti khng trnh khi thiu
st, em rt mong c s gp ca cc thy, cc c, cc bn hon thin ti hn. Em xin
chn thnh cm n thy TS.Nguyn Hong Dng, ThS L Quang Thng v cc thy, cc
c thuc Vin in t-vin thng gip em hon thnh ti.
MC LCLi m u2Danh mc hnh nh6Danh mc bng8Hnh nh KIT pht trin
BKFET9M t tnh nng10S khi chc nng h thng11Layout and Components11S h
thng v chc nng tng khi121.1. Khi hin th121.1.1. LED n12S khi12Ghp
ni LED n13Nguyn l iu khin131.1.2. LED 7 thanh13S khi13Ghp ni LED 7
thanh14Nguyn l iu khin141.1.3. LED Matrix19S khi19Ghp ni LED
Matrix20Nguyn l iu khin211.1.4. Text LCD 20x424S khi24Ghp ni
LCD25Nguyn l iu khin251.2. Khi iu khin321.2.1. Button, KeyPad v
Switch32S khi32Ghp ni KEYPAD v Switch33Cu to KEYPAD33La chn ch lm
vic34c tn hiu341.2.2. PS/236S khi36Ghp ni PS/237Cu to chun
PS/237PS/2 giao tip Keyboard371.3. Truyn thng khng ng b
UART411.3.1. Giao tip my tnh thng qua USB41S khi41Ghp ni
USB421.3.2. Giao tip Module SIM 900A42S khi42Ghp ni Module SIM
900431.3.3. Tuyn thng ni tip khng ng b UART43Baud rate43Khung
truyn431.4. Truyn thng ng b I2C451.4.1. Giao tip module thi gian
thc RTC45S khi45Ghp ni RTC451.4.2. Giao tip EEPROM46S khi46Ghp ni
EEPROM46Truyn thng ni tip ng b I2C461.5. Khi SD Card481.5.1. S
khi481.5.2. Ghp ni Micro SD Card481.6. Khi VGA501.6.1. S
khi501.6.2. Ghp ni VGA501.6.3. Giao tip VGA 640x48051Ti liu tham
kho53
Danh mc hnh nh
Hnh 01 S khi phn cp theo chc nng12Hnh 01 KIT BKFET12Hnh 11 S khi
LED n13Hnh 12 S khi LED 7 thanh 414Hnh 13 Cu to LED 7 thanh on16Hnh
14 Hnh nh thc t LED 7 thanh 417Hnh 15 Cu to LED 7 thanh 417Hnh 16
Kt qu hin th LED 7 thanh 418Hnh 17 S khi LED Matrix20Hnh 18 Cu to
LED Matrix 8x822Hnh 19 Minh ha kt qu hin th LED Matrix 8x823Hnh 110
S khi LCD25Hnh 111 LCD 20x4 trn thc t26Hnh 112 Trnh t giao tip Text
LCD29Hnh 113 S khi Button, Keypad v Switch33Hnh 114 Cu to bn phm
KEYPAD34Hnh 115 S khi PS/237Hnh 116 Cu to chun PS/238Hnh 117
Keyboard scancode set 239Hnh 118 Trng thi bus giao thc PS/240Hnh
119 Khung truyn d liu t device ti host41Hnh 120 Khung truyn d liu t
host n device42Hnh 121 S khi USB42Hnh 122 S khi SIM 900A43Hnh 123
nh dng khung truyn UART45Hnh 124 S khi RTC46Hnh 125 S khi
EEPROM47Hnh 126 Start and Stop condition48Hnh 127 S khi SD
Card49Hnh 128 S khi VGA51Hnh 129 Gin thi gian chu k qut dng52Hnh
130 Gin thi gian chu k qut mnh53
Danh mc bng
Bng 11 Gn chn LED n13Bng 12 Gn chn LED 7 thanh 414Bng 13 Tn hiu
iu khin hin th cho LED 7 thanh16Bng 14 Gii m LED 7 thanh Anode
chung17Bng 15 Gn chn LED Matrix20Bng 16 Gii m LED Matrix22Bng 17 Gn
chn LCD25Bng 18 S chc nng tng chn text LCD26Bng 19 Tp lnh LCD27Bng
110 Function Set28Bng 111 Display Control29Bng 112 Entry Mode
Set30Bng 113 Write to CGRAM or DDRAM31Bng 114 Gn chn KeyPad
Switch33Bng 115 Gn chn PS/237Bng 116 Gn chn USB42Bng 117 Gn chn
Module Sim43Bng 118 Baud rate43Bng 119 Gn chn RTC45Bng 120 Gn chn
EEPROM46Bng 121 Gn chn SD Card48Bng 122 Gn chn VGA50
Hnh nh KIT pht trin BKFET
M t tnh nng
KIT pht trin a nng BKFET h tr trong cc phng th nghim nhm gip
sinh vin mt cch hiu qu trong hc tp. Trn b KIT tch hp sn cc tnh nng
c bn v 1 s tnh nng nng cao gip cho ngi mi bt u d dng hn trong vic
tip cn cng ngh.Cc tnh nng ngoi vi ca KIT bao gm : LED n LED 7 thanh
LED Matrix Text LCD Button Switch Keypad PS2 USB Module Sim 900
Module thi gian thc DS1307 EEPROM VGA ADC
S khi chc nng h thng
Hnh 01 S khi phn cp theo chc nng
Layout and Components
Hnh 01 KIT BKFET
S h thng v chc nng tng khi
Khi hin thNhm to s khi u thun li cho ngi mi hc, gip cc bn hc bin
nhng tn hiu t khng nhn thy chuyn sang dng tn hiu c th quan st.LED
nS khi
Hnh 11 S khi LED nCho php iu khin hin th tn hiu ti u ra 1 cch n
gin.Khi gm 8 LED n, mi LED c mc ni tip vi 1 in tr 470 ohm, gip nh
thin dng in cho LED to sng va phi tng tui th cho vic s dng.
Ghp ni LED nV tr LED c tnh t tri qua phi. Bn tri ngoi cng l
LED0, bn phi ngoi cng l LED7Tn tn hiuChn FPGAChn AVRM t tnh nng
LED0PIN_115PE0LED Green[0]
LED1PIN_118PE1LED Green[1]
LED2PIN_119PE2LED Green[2]
LED3PIN_120PE3LED Green[3]
LED4PIN_121PE4LED Green[4]
LED5PIN_122PE5LED Green[5]
LED6PIN_125PE6LED Green[6]
LED7PIN_126PE7LED Green[7]
Bng 11 Gn chn LED nNguyn l iu khinMch c mc Anot chung (chung
ngun :3.3V). n LED sng bn cn cp mc logic 0 (0V) trn cc chn LED0
LED7 ngc li LED tt bn t mc logic 1 (3.3V).LED 7 thanhS khi
Hnh 12 S khi LED 7 thanh 4LED 7 thanh thng c dng hin th cc con s
0 9. c ng dng kh rng ri trn th trng nh ng h hin th thi gian, ngy,
thng , nm, nhit , trong ng dng n giao thng.vvKhi mch bao gm : 1 LED
7 thanh 4 hin th. 1 bng tr 470ohm hn dng. 4 tranzitor c iu khin dng
trong ch ng, m cp ngun cho LED 7 thanh.Ghp ni LED 7 thanh
Tn tn hiuChn FPGAChn AVRM t tnh nng
LD0PIN_129PF4Digit1
LD1PIN_132PF5Digit2
LD2PIN_133PF6Digit3
LD3PIN_134PF7Digit4
LED0PIN_115PE0Segment A
LED1PIN_118PE1Segment B
LED2PIN_119PE2Segment C
LED3PIN_120PE3Segment D
LED4PIN_121PE4Segment E
LED5PIN_122PE5Segment F
LED6PIN_125PE6Segment G
LED7PIN_126PE7LED Dp
Bng 12 Gn chn LED 7 thanh 4Nguyn l iu khin c th iu khin LED 7
thanh 4, u tin bn cn bit v cu to v cch iu khin LED 7 thanh n (LED 7
thanh 1) n s gip bn d hiu hn.
Cu to LED 7 thanh n
Hnh 13 Cu to LED 7 thanh onHnh bn tri l nh 1 con LED 7 thanh
ging vi bn ngoi th trng.Hnh bn phi l cu to bn trong ca LED 7
thanh.Chng ta quan st sang hnh pha bn phi th thy thc cht LED 7
thanh c cu to t 7 con LED n v c iu khin bi cc chn A,B,C,D,E,F,G v 1
LED nm bn cnh l LED th 8 cho php bn iu khin du chm (dp. C 2 loi LED
7 thanh l LED 7 thanh anode chung v LED 7 thanh cathode chung. Hnh
bn tay phi pha trn cathode chung (cc bn c th quan st ton b cc
cathode c ni chung trn 1 ng dy v k hiu tn ng dy l CC), cn li hnh
pha di l anode chung (cc anode ca LED c ni vi nhau k hiu CA). Trong
KIT pht trin a nng BKFET s dng LED 7 thanh Anode chung nn mnh ch
trnh by v loi ny. Phng php iu khin LED 7 thanh n.LED Anode chung
(chung VCC : 3.3V). Nh ni pha trn iu khin hin th chng ta s iu khin
tn hiu trn cc chn A,B,C,D,E,F,G,dp.
V d hin th s 1 ln LED 7 thanh : Cp ngun (mc logic "1) ti chn CA
trn LED 7 thanh. iu khin cc tn hiu trn cc chn A,B,C,,G,dp
Bng 13 Tn hiu iu khin hin th cho LED 7 thanhHng 1 cho bn bit tn
chn iu khinHng 2 mc tn hiu t ti chn ( 1 : 3.3V, 0 : 0V ). Cu to LED
7 thanh 4
Hnh 14 Hnh nh thc t LED 7 thanh 4
Hnh 15 Cu to LED 7 thanh 4Quan st cu to trn ta thy LED 7 thanh 4
c u chung cc cc Anode v chng c chia lm 4 khi tng ng vi 4 con LED,
cc cc Cathode ca cc thanh c u chung vi nhau : A A, B- B, ., DP DP.
Phng php iu khinYu cu hin th 4 s khc nhau : 1234 ln LED 7 thanh
4
Hnh 16 Kt qu hin th LED 7 thanh 4 Lp bng gii m cho ni dung cn
hin thTn hiu LED 7 thanh
Ch sDpGFEDCBAHexa
0010000000x40
1011110010x79
2001001000x24
3001100000x30
4000110010x19
5000100100x12
6000000100x02
7011110000x78
8000000000x00
9000100000x10
Bng 14 Gii m LED 7 thanh Anode chungBng trn m t tn hiu ti cc chn
A,B,C,.,DP cho cc thng tin cn hin th. Da vo thut ton qut LED v hin
tng lu nh ca mt ngi : quan st vo cu to bn trn nu nh ta ti 1 thi im
cp mc logic 1 trn 4 chn Digit 1 (12), Digit 2 (9), Digit 3 (8),
Digit 4 (6) v cp d liu vo cc chn A,B,C,.,DP nh bng gii m trn th
chng ta s thu c kt qu l c 4 LED cng hin th 1 ni dung, vy l khng ng
vi yu cu ca bi. Khi chng ta quan st 1 vt mt chng ta s lu gi hnh nh
ca n trong 1 khong thi gian rt ngn (20ms) da vo nu 1 vt c thi gian
xut hin v bin mt ti 1 v tr trong khong thi gian ngn hn 20ms th ta s
nhn thy vt cha tng bin mt. Cch thc hin nh ngha tn gi : LED1 = Digit
1 ,LED2 = Digit 2 LED3 = Digit 3, LED4 = Digit 4 Data =
Dp,G,F,E,D,C,B,A (Data : PORT 8 bit ghp ni vi cc chn d liu
A,B,C,D,E,F,G,Dp) Chng trnh :
LED1 = 1;LED2 = 0, LED3 = 0, LED4 = 0 Data = 0xC0; Delay_5ms;
LED1 = 0;LED2 = 1, LED3 = 0, LED4 = 0 Data = 0xF9; Delay_5ms; LED1
= 0;LED2 = 0, LED3 = 1, LED4 = 0 Data = 0xA4; Delay_5ms; LED1 =
0;LED2 = 0, LED3 = 0, LED4 = 1 Data = 0xB0; Delay_5ms;Nu ta coi thi
gian thc hin ca 1 cu lnh l 0 ms th tng on chng trnh trn ch cn ph
thuc vo thi gian ca 4 cu lnh Delay l 20ms nn n ph hp vi iu kin cp
bn trn.LED1 = 1, LED2 = 0, LED3 = 0, LED4 = 0Data = 0xC0Delay_5msVi
khi cu lnh u tin ch cho php cp ngun cho LED1 v vy khi a gi tr gi m
vo cc thanh A,B,C,..,Dp th ch c LED1 hin th ni dung thng tin trong
trng hp ny l S 1. Tng t sau khi thc hin cc cu lnh cn li th mi LED s
c hin th 1 s khc nhau. Cui cng ta cho php c on chng trnh c lp i lp
li th s hin th c s 1234.LED MatrixS khi
Hnh 17 S khi LED MatrixLED Matrix c ng dng ph bin trn th trng c
kh nng hin th ni dung mang thng tin vn bn, hnh nh vv c dng nhiu
trong lnh vc hin th nh cc bin qung co, hin th thay th LCD text, LCD
graphic hoc thm ch l hin th Video.
Khi mch bao gm : 1 LED Matrix 8x8 8 in tr nh thin dng cho LED 8
in tr nh cho thin dng cc B ca Tranzitor 8 Tranzior npn Ghp ni LED
Matrix
Tn tn hiuChn FPGAChn AVRM t tnh nng
LD0PIN_120PE0R1
LD1PIN_119PE1R2
LD2PIN_118PE2R3
LD3PIN_115PE3R4
LD4PIN_126PE4R5
LD5PIN_125PE5R6
LD6PIN_122PE6R7
LD7PIN_121PE7R8
Cot0PIN_104PA0C1
Cot1PIN_101PA1C2
Cot2PIN_100PA3C3
Cot3PIN_99PA4C4
Cot4PIN_97PA5C5
Cot5PIN_96PA6C6
Cot6PIN_94PA7C7
Cot7PIN_93PA8C8
Bng 15 Gn chn LED Matrix
Nguyn l iu khin Cu to LED matrix 8x8
Hnh 18 Cu to LED Matrix 8x8LED Matrix 8x8 c cu to t 64 Led n c b
tr thnh dng ma trn hnh vung. gim s lng cc ng iu khin trong Ma trn
Led th cc Led c ni chung vi nhau theo hng v ct. S lng Led trong Ma
trn led l s hng nhn vi s ct trong khi cc chn iu khin ch bng s hng +
s ct. Phng php iu khinT s cu to cho thy cc chn ca cc ct v cc hng c
ni chung vi nhau ta c th nhn thy LED Mtrix ging LED 7 thanh 4 nh cp
pha trn do vy chng cng c nguyn l iu khin ging ht. iu khin LED
Matrix c 2 phng php c s dng qut theo hng hay qut theo ct.Thc hin
hin th ch ci A ln LED Matrix 8x8
Hnh 19 Minh ha kt qu hin th LED Matrix 8x8 Bng gii m cho ni dung
cn hin th
Bng 16 Gii m LED MatrixBng trn m t gi tr gii m khi s dng phng
php qut hng Cch thc hin nh ngha tn : Port_data = Cot[7:0] : chng ta
ghp ni 8 chn t C7 C0 ti 1 port gip vic xut gi tr 1 cch thun tin d
dng hn. Port_ctr = LED[7:0]. Gii thut phng php qut hng Port_ctr =
1
