Автоматизированное проектирование электронных модулей Лабораторный практикум

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  • . . , . .

    '2005

    '

  • 2 621.396:681.3.02 39.965

    50

    . ., . .

    50 :. / . ., 2005. 168 .: .

    ' P'CAD AutoCAD, ' , , .

    ' , ' ' , ' , , ' .

    ' ; . .

    , 2005

  • 3

    ' ' '. ' , ' . ' , , ' .

    P'CAD 2002 AutoCAD2002.

    P'AD 2002 :

    Symbol Editor, ' ;

    Pattern Editor, ;

    Library Executive, ' ;

    Schematic, ;

    PCB, .

    AutoCAD 2002 ' , , . ' ' .

    ' : , '

  • 4 , , , ' , .

    ' , ' , ' .

    ' ' P'CAD 2002 AutoCAD 2002.

    ' , ', . ' , , , .

    , ' .

    ' , ' .

  • 5 1

    : ' ' P'CAD.

    1.

    :

    Symbol Editor Pattern Editor;

    ' Symbol Editor;

    PatternEditor;

    Library Executive.

    ' .

    : ' 155 2'( ) ' 5'35.

    1.1. Symbol Editor

    Options/Configure () Options/Grids 5 .

    Place/Line, Place/Arc 0,25 . ' Place/Text, Place/Pin. Display Pin Name Pin Des ( ) Length

  • 6 (Short 2,5 , Normal 7,5 , Long 12,5, , User ). Display Characteristics. . ( ) 90 R, ' F ( ' , , , ' ).

    155. Place/Attributes RefDes . . Utils/Renumber. ' Default Pin Des ' Starting Number Increment Value . , . Place/Point .

    . ' , Pins View.

    , ', ' Library/Pattern Save. , ', , 155 LA3. ' Create Component, ' Library Executive.

    Symbol/SymbolWizard. , . : Symbol Width, PinSpacing, Number Pins Left, Number Pins Right, Line Width, Default Pin Name,Default Pin Designator, Current Pin Number, Length, Display, Exit, Finish. . Exit ' Wizard ', Finish c ' .

    : 2.5 1.25 . '

  • 7 ' . ' , '. 2.5 ( 2.54 ). , , ' . ' , .

    . ' 7.52.5 . . ' , , ', . ' 1.25 . , 1.25 . 2.5 . , ' .

    ' , 10 Grid, 1 Grid. . Option Display, Colors.

    Place/ Line , ' . 2.5 1.25 , ' 2.5 .

    Place/Pin 1, 2 3. , Default Pin Des Pin Name PinNumbers, Display Pin Des.

    Place Ref Point ' , Place Attribute

  • 8 {RefDes} ' (, R1) {Value} (, 50 ).

    Validate , , VarRes.

    1.2. Pattern Editor

    (' ) ' 5'35.

    Options/Configure Options/Grids , ' .

    14 2,5 7,5 . ' Options/Pad Style ' Default . ' Place/Pad . . ', , Place/Pad. ' , Edit/Copy Matrix: Numberof Columns 2, Column Spacing 7,5 , ' Number of Rows 7, Row Spacing 2,5 . 0.5 , Top Silk Place/Line, Place/Arc 0.2 .

    Top Silk Place/Attributes/Component ' RefDes ( 90).

    ' 0. ' Utils/Renumber ' . ' Pad Num, 1 (Starting Number) 1 (Increment Value). . ' Place/Point/Ref Point ' ( ) ( ' Glue Dot, Pick and Place Test Point).

  • 9 , , Library/Pattern Save As. ' , , , DIP14.

    . Library/Pattern Save As Create Component, ' Library Executive. Match Default Pin Des toPad Numbers, , , ' Pin Designators Pad Numbers.

    Symbol Editor, ' Pattern/Pattern Wizard. ' . ' , . : Pattern Type, Number Of Pads Down, NumberOf Pads Across, Pad To Pad Spacing, Pattern Width, Pattern Hight, Pad 1 Position,Pad Style, Silk Screen, Exit, Finish. , , ' DIP, QUAD, ARRAY.

    5'35 3.75 , 2.5 , 90. Place/Pad 2.5 '. , ' . , Place Arc Top Silk Top Assy. 1.25 375 ', . , ' . , ' {RefDes}. .

    1.3. Library Executive

    1.3.1. . LibraryExecutive Component/New '

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    , , ee . Component Information. ' Select Pattern '. Library Browse , , ' DIP14.

    1.3.2. . ' :

    1. Number of Gates , 4. Number of Pads , Refdes Prefix ' , DD. Select Symbol, ' K155 LA3.

    2. Component Type Normal.3. Component Style '

    Homogeneous.4. Gate Numbering '

    Numeric ( Gate # ' 1, 2 . .). Gate Eq, ' .

    5. Alternate View ' . , Normal (IEEE DeMorgan).

    1.3.3. . ' , ' Pins View. .

    ', ' Sym Pin # ' Pin Des ( Pad Numbers ' Pin Des). , Pins View 7 14 , 2' 12 , ' . 155 7 , 14 .

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    Pad # Pin Des. , 3 4 155 , ' .

    Pin Name . , '. Enter ' . Esc .

    ' Ctrl+, , ' , Ctrl+V (' Windows).

    Gate Eq Pin Eq ' ', 1 ( ' ).

    Elec. Type , ' . (ElectricalType). ' . , I Input. , , , . ., . , Passive, PassiveH . .

    . ~. , G ~G, GC2A ~GC~2A.

    . ' Component/Validate. ' , :

    Missing Pin Des in row 1. Only unused pads are allowed to have a blank PinDes. ( 1. Pin Des.)

    :

    The gate equivalence specified in Component Information for gate 4 doesnot match the pins gate equivalence specified in row 14. ( , Component Information '

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    4, , ' 14.)

    , :

    No errors found!

    ' Component/Save Component/Save As. ' , , ' . ' .

    ', , .

    2.

    ' ' P'CAD 2002 Windows 95/98/NT/ 2000/XP.

    P'CAD 2002 :Library Executive, Schematic, PCB, Autorouters ' , Symbol Editor Pattern Editor.

    Library Manager (Library Executive) . 'CAD , ' '. ' ; , , . .

    Schematic PCB .Symbol Editor Pattern Editor '

    (Symbol) (Pattern).

    Schematic, PCB, Symbol Editor Pattern Editor , .

    Symbol Editor () ' . ' Pattern Editor ( ' ) . Library

  • 13

    Executive , . .

    2.1. Symbol Editor

    Symbol Editor ' () . , '. Symbol Editor (*.LIB) ' (*.SYM).

    ' .

    2.1.1. Options Configure. Workspace Size (. 1) (, ... ) (4, A3... 0). Width () Height (). . ' User.

    . 1.

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    Units : mil (1 =0,001 = 0,0254 ), mm , inch . ' . ' , .

    Orthogonal Modes: 90/90 LineLine , 45/90 LineLine ' . 90/90 LineLine , 45/90 LineLine ' . , ' , ' , ' .

    Zoom Factor Zoom. Autopan(%Display) () (, ,, ), ( )., Autopan = 50% .

    2.1.2. Options Display (. 2). Options/Display , .

    Colors Item Colors ' :

    Pin ;Line ;Polygon ;Text ;Open End ()

    . Display Colors '

    :Background ;1Grid ;10Grid , 10 ;Highlight ;Selection . ' '

    .

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    . 2

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    ,

    Col

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    Miscellaneous : Cursor Style :Arrow ;Small Cross ;Large Cross . Miscellaneous :Draft Mode ( '

    );Display Default PinDes

    , ;Display Open Ends

    ;Scroll Bars ;Show Data Tips ( '

    ' View/Snap to Grid);

    Thin Stroke Text ;Drag by Outline

    ( ' ).

    Defaults , , Cancel .

    , Options/Display , ' (Part Attr), (Background).

    2.1.3. Options Current Line. Options/Current Line ' Line ( ' ).

    Options/Text Style , ' ' :

    Default Stroke ( ' 5 , ); PinStyle ' ; PartStyle ; WireStyle ; PortStyle ; DefaulTTF ' TrueType ( Arial, 17 , ).

    ' (Current Text Style) ' . Add, Properties.

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    : Stroke Font (' ) TrueType Font ( ), ' (Font) . .

    2.1.4. Option Grids. Option/Grids. Add '. Grids , , .

    2.1.5. Symbol Wizard. ' , Symbol Wizard Symbol. (. 3) :

    Symbol Width ;Pin Spacing ;Length (Short, Normal, Long, User);Number Pin Left (Right) ()

    ;Symbol Outline ;Line Width ;Display Pin Name (Pin Des)

    () ;Default Pin Name , '

    20 );Default Pin Designator ,

    ;Current Pin Number .Exit , Finish

    , ' Symbol Editor ( , , ), Symbol/Save Symbol/Save As.

    2.1.6. Place. Place/Pin, , ' , . , Utils Validate, ' : .

    Symbol Editor , ' , '

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    . 3

    .

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    Schematic ' . , '. Symbol/Attributes. , . ' Symbol/Open. , , . ' Symbol/Save As. , ' Create Component, ( ' , ' ).

    2.2. Pattern Editor

    ' . Pattern Editor , Pattern Editor (*.LIB) (*.).

    PCAD Pattern Editor *.. ' File/Copy To File As, , , Template. PAT. Pattern Editor '