orcad1 co ban sinhvienkythuat
TRANSCRIPT
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
1/17
Hng dn s dng Orcad c bn
Gii thiu
Orcad l phn mm thit k mch in ca cng ty Cadence, ni chnh xc hn Orcad l
mt b phn mm bao gm nhiu phn mm tr gip cho chng ta trong qu trnh thit k mch.
Orcad Capture v s nguyn l, Layout v mch in, Pspice gi lp Ngoi Orcad ra
cn rt nhiu phn mm khc gip chng ta thit k mch in nh Protel, Eagle, Winboard Tui
chn Orcad gii thiu v tnh ph bin ca n hn na phn mm ny kh mnh. (Theo ngu
ca tui th Orcad mnh phn v mch nguyn l, cn Layout th cng . thng thi).
Cng v tnh ph bin ca Orcad m ngi hc tm c nhiu s tr gip t cc i hip
tin bi, d dng em t mch in, d dng chia s Orcad bn xn trn th trng t khng
khip, nhng tnh hnh chung 8 K l Ok ! Vy l chng ta c Orcad luyn, cn gio trnh, theo
tui bit th c sch ca Vng Khnh Hng, Hong Vn ngNhng thi bui ny th bn cng
bt c d ln mng khng tm c th mi ra ngoi mua sch, y cng chnh l l do tui vit ci
bn ang c ny. Trc y,anh falleaf (on Hip) c vit v Orcad c cc k d hiu, cc bn
cng nn c (ti din n picvietnam).
Trong ti liu ny tui s ln lt gii thiu cch v mch nguyn l bng Orcad Capture,
mch in bng Orcad Layout v kthut lm mch in, chng ta c 3 bi.
Bi 1. Hng dn v mch nguyn l bng Orcad Capture
Bi 2. V mch in vi Orcad Layout
Bi 3. Lm mch in ti nh
Ni thm, tui vit ti liu ny da trn cch tui dng Orcad, v vy kh m trnh khi thiu
xt, mong cc bc b qu cho, sai cc bc bo cho em sa, ng th cc bc c v mt t th
nh ! Ok ?!. By gi, chng ta bt u bi 1.
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
2/17
Bi 1 Hng dn v mch nguyn l bng
Orcad Capture
Hng dn ci tV cch ci t Orcad th bn c th tham kho ti diendandientu, rt nhiu bn vit v
vn ny, tui cng vit, bn ln xem nhe ! Vy l ta xong phn u
Orcad Capture
Mn hnh ca Orcad Capture nh trn. Ni thm, Orcad Capture v Capture CIS th cng
nh nhau c thi, ch khc l CIS c thm c s d liu v mt s linh kin (ging nh sch tra
transistor).
bt u, bn chn File - New - Project hoc File - New - Design
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
3/17
Hng dn OrCAD c bn
Phm Thi Ha - TH1 - K48 - HBKHN 3
Phn name gip bn t tn cho project ca mnh, bn chn PC Board Wizard nu mun
gi lp, cn tui th thng chn Schematic, ci ny ch c mch nguyn l. Phn Location ch ra
bn t file mnh thit ku. Theo tui mi project bn nn lm mt th mc ring sau ny
d tm kim, bi v mi project, Orcad c th to ra kh nhiu file. V d bn c th toC:\Orcad\Work\Nguon hay C:\Orcad\Work\Hengio chng hn, hai th mc bn lu bn thit k,
hay mch in ca mnh vi hai project tng ng l Nguon v Hengio
V d, bi 1 ta chn nh sau:
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
4/17
Hng dn OrCAD c bn
Phm Thi Ha - TH1 - K48 - HBKHN 4
Mn hnh lm vic ca Orcad nh sau :
Chng ta s thit k trn ca s Schematic
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
5/17
Hng dn OrCAD c bn
Phm Thi Ha - TH1 - K48 - HBKHN 5
Ca s pha bn tri gip ta qun l project ca mnh, cn bn phi l thanh cng c cha cc
thnh phn cn thit v mch.
Tui s gii thiu v thanh cng c (ci ny dng nhiu nht y)
- Con tr Select gip ta thao tc vi cc linh kin, di chuyn, xoay ...
- Place Part, a thm linh kin vo mch
- Place wire : ni dy
- Place net alias : ni dy thnh mng
- Place bus: to bus
- To im ni
- To dy ni vo bus
- Ngun
- t
- Ci ny tui cha dng bao gi hehe
- To mt cng
- Gip bn ni trang ny sang trang khc trong trng hp mch ln
- Ch ra chn linh kin khng c ni, v d chn IC khng dng ht
- Cn my ci di ny, bn di chuyn chut ln n s hiu ngay m
Vic u tin bn nn lm l chn kch thc bn v, ch li (grid) cc linh kin sc
neo vo cc li ny, gip bn nh v chng trn bn v.
Li chnh l cc chm nh bn nhn thy trn
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
6/17
Hng dn OrCAD c bn
Phm Thi Ha - TH1 - K48 - HBKHN 6
chnh c giy bn chn Option - Schematic Page Properties
Bn nhn l t hiu ri cn g, vi bn v nh chn A4, ln hn th A3, kch thc ty chn
Custom.
Tip theo l chnh grid:
Bn chn Option - Preferences
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
7/17
Hng dn OrCAD c bn
Phm Thi Ha - TH1 - K48 - HBKHN 7
Trong khung Schematic Page Grid c cc ty chn, Visible: c cho hin th li hay khng. Grid
Style: Kiu li l loi chm hay ng thng. Grid spacing khong cch li, theo tui chon l
va nht.
Vy l bc tinh chnh u tin xong, qun mt, u tin bn nn lu bn thit k ca mnh
trc , bn nn vo Option - Autobackup Capture t lu bn v ca mnh theo thi gian nh
trc, nu khng mt in th ph, ci ny my thng trc tui b my ln.
Backup time: khong thi gian gia cc ln backup
No of backup: S bn backup m chng trnh gi trc khi ghi ln
Directory for: Th mc lu bn backup
Ngoi ra, v mu m, font ch bn c th chnh trong Option - Preferences
Gi l n phn chnh n, my ci vn vt xong.
1. Thm linh kin vo bn v
thanh cng c bn phi, bn chn Place Part
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
8/17
Hng dn OrCAD c bn
Phm Thi Ha - TH1 - K48 - HBKHN 8
Sao trng trn vy n ?!
Tt nhin l trng trn ri, cc linh kin ca Orcad nm trong cc th vin c phn theo chc
nng, v d AT89C51, PIC16F84 nm trong th vin microcontroller, hay cng RS232, LPT nm
trong th vin Connector Ci ny lm nhiu bn quen ngay.
c th add c linh kin, trc ht bn phi add th vin trc . Bn bm vo Add Library
Bn c th chn mt vi th vin hoc chn tt, ty, tui thng chn cc th vin sau: Discrete,
Microcontroller, Connector, Transistor, Regulator.
Ta gii thiu qua mt vi th vin nh:
Discrete ch
a cc linh kin b
n hay g
p nh
t (!), tr
, tr
bng, bi
n tr
, t, diode, transistor, scr,
led
Microcontroller: cha cc vi iu khin.
Connector: cha cc loi u ni
Capsym: ci ny cha ngun v t..
Ci th vin ca Orcad v cng honh trng, nhng mi lm bn ch cn th vin nh trn l .
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
9/17
Hng dn OrCAD c bn
Phm Thi Ha - TH1 - K48 - HBKHN 9
Trong khung libraries bn chn th vin mun ly linh kin trong , tui chn tt.
Part bn g tn linh kin mun ly, v d g resistor, capacitor hay AT89C52
Sau khi chn c linh kin ri, bn bm OK
Gi s tui chn Resistor v bm OK
Ta quay v mn hnh thit k:
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
10/17
Hng dn OrCAD c bn
Phm Thi Ha - TH1 - K48 - HBKHN 10
Lc ny con tr s c thm hnh ca linh kin bn di, cn bao nhiu linh kin bn bm by
nhiu, kt thc bm ESC
2. Thao tc vi linh kin
Bm phi chut vo linh kin, menu s c cc lnh mirror hor.., mirror ver,rotate
Cc linh kin c thc xoay, di chuyn ty bn, di chuyn, chn con tr chut mu en
thanh cng c bn phi, bn bm - ko - th.
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
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Hng dn OrCAD c bn
Phm Thi Ha - TH1 - K48 - HBKHN 11
Bn c th nhp p chut vo tn linh kin chnh tn tui, gi tr ca n:
Bn c th chn font ch, c ch, hay c th nhp gi tr vo Value
Cn mt vn khc:
Bn nhn kcon AT89C52 ny xem:
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
13/17
Hng dn OrCAD c bn
Phm Thi Ha - TH1 - K48 - HBKHN 13
Hnh dng chn ca n trong ca s Shape, trong ca s ny chn c la chn l zero length
chnh v vy m bn khng nhn thy n, bn c th chn Line hay Short.
Kiu chnh chn ny cng p dng vi nhiu linh kin khc nh con 7805.
VIN1
VOUT2
U2
LM7805/TO
Bn khng thy c chn GND, chnh tng t nh trn c th lm cho n hin ln.
Mt ch nho nh, bn nn t tn linh kin sao cho d nh, v d mt in tr ni vi LED1 th
c tht tn cho in tr l R1_LED1, nh vy khi bn chuyn sang Layout vic sp xp linh
kin s d dng hn.
Sau khi ly cc linh kin, sp xp hp l, bn tin hnh ni dy, biu tng phn ni dy ti
ni trn, bn bm chut ln chn linh kin ngun, bm chut ti cc khc quanh, ri ti chn
linh kin ch.
Mt ch quan trng khc l chn no khng dng n bn phi quy nh n thnh no connection
RST9
XTAL218
XTAL119
PSEN29
ALE/PROG30
EA/VPP31
P1.0/T21
P1.1/T2-EX2
P1.23
P1.34
P1.45
P1.56
P1.67
P1.78
P2.0/A821
P2.1/A922
P2.2/A1023
P2.3/A1124
P2.4/A1225
P2.5/A1326
P2.6/A1427
P2.7/A1528
P3.0/RXD 10
P3.1/TXD11
P3.2/INT012
P3.3/INT113
P3.4/T014
P3.5/T115
P3.6/WR16
P3.7/RD17
P0.0/AD039
P0.1/AD138
P0.2/AD237
P0.3/AD336
P0.4/AD435
P0.5/AD534
P0.6/AD633
P0.7/AD732
U1
AT89C52
V d nh P2 trn, nu khng lm vic ny, khi chuyn sang Layout s bo li.
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
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Hng dn OrCAD c bn
Phm Thi Ha - TH1 - K48 - HBKHN 14
3. Thao tc vi BUS
cho mch gn hn, bn nn s dng BUS. V d ni t P0 ra cng D0..D7 ca LCD
th bn nn lm mt bus, n s d nhn hn rt nhiu so vi 8 ng ni.
Bn chn biu tng ni bus nh hnh trn, to mt ng bus theo mun, sau ni cc
chn vi bus, bn chn biu tng , bn bm R xoay n theo hng ty thch.
Bm vo bus hai ng ni, nhn ESC, sau bm F4, Capture s tng thm ng ni cho
bn, bn bm n khi no th thi.
Sau t tn cho cc ng ni , nhng ng ni no c cng tn sc ni vi nhau.
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
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Hng dn OrCAD c bn
Phm Thi Ha - TH1 - K48 - HBKHN 15
V d bn ly tn l LED 1, bm vo chn ni vi LED 1 th sau Capture s tng tng ln
thnh LED 2, c nh vy m bm n ht, khi n LED 8 ri, bn li bm vo biu tng
sa li thnh LED 1 bm cho phn cn li.
4. Hon tt bn v.
hon tt bn v thm ngun v t, iu ny th n gin qu ri.
By gi bn s hc cch xut bn v ra file Netlist, cc chng trnh v mch thng lm vic vi
kiu tp tin Netlist.
Bn chn ca s nh hnh di y, bm vo tn bn v, v d nh ca ti l .\design4.dsn, bn
phi bm vo y th biu tng Creat Netlist mi c th tc ng c.
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
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Hng dn OrCAD c bn
Phm Thi Ha - TH1 - K48 - HBKHN 16
Bm vo biu tng Create Netlist.
Trong ca s ny bn chn chng trnh s lm vic vi file Netlist ny, trong c Layout,
Pspice, trong phn Other c c Protel, Winboard, Pcad, PadsPCB
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8/2/2019 OrCAD1 Co Ban Sinhvienkythuat
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Hng dn OrCAD c bn
Phm Thi Ha - TH1 - K48 - HBKHN 17
V d ta s chn Layout, tui chn phn ny v bi hc sau, tui s gii thiu Layout.
Bn nh phi chn User Properties are in inches v Layout lm vic trn h inches, chn Browse
chn th mc mun lu, bm OK hon tt.
Trn y tui gii thiu mt siu c bn nht v Capture, nhng cng kin thc bn c
th t v bn v cho mnh, bn nn luyn tp mt cht, c th ly my quyn in t ra tp v
theo n, chcn hai
n ba ngy (
y l
i v
i nh
ng thng
n nh
tui) l b
n c th
v
tt.
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