OrCAD1 Co Ban Sinhvienkythuat

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.

Download ti liu K Thut Min Ph ti http://SinhVienKyThuat.Com



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




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:




4/17

Hng dn OrCAD c bn


Mn hnh lm vic ca Orcad nh sau :

Chng ta s thit k trn ca s Schematic




5/17

Hng dn OrCAD c bn


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




6/17

Hng dn OrCAD c bn


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




7/17

Hng dn OrCAD c bn


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




8/17

Hng dn OrCAD c bn


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 .




9/17

Hng dn OrCAD c bn


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:




10/17

Hng dn OrCAD c bn


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.




11/17

Hng dn OrCAD c bn


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:




12/17


13/17

Hng dn OrCAD c bn


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.




14/17

Hng dn OrCAD c bn


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.




15/17

Hng dn OrCAD c bn


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.




16/17

Hng dn OrCAD c bn


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




17/17

Hng dn OrCAD c bn


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.


OrCAD1 Co Ban Sinhvienkythuat

Documents

Transcript of OrCAD1 Co Ban Sinhvienkythuat