tinycad_manual.pdf

8/11/2019 Tinycad_Manual.pdf

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TinyCAD User's Manual

Version 2.80.06

http://tinycad.sourceforge.net


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Copyright 1994-1995,2002-2013 Matt Pyne.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser

General Public License as published by the Free Software Foundation; either ersion !"# of the License$ or %atyour option& any later ersion"

This program is distributed in the hope that it will be useful$ but '(T)*UT +N, '+--+NT,; withouteen the implied warranty of .-0)+NT+1(L(T, or F(TNSS F*- + P+-T(0UL+- PU-P*S" See theGNU Lesser General Public License for more details"

,ou should hae receied a copy of the GNU Lesser General Public License along with this application; if not$write to the Free Software Foundation$ (nc"$ 23 Temple Place$ Suite 445$ 1oston$ .+ 5!###6#457 US+"

CreditsTiny0+8 has been supported by many people oer the last few years$ and here are 9ust some of the peoplewho hae contributed:

Founding author

.att Pyne

Legacy contriutors

+rron Lawrence8arius -ybair< 1ailey?ictor Faria'im >neel+ndrew 'al


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Welcome to TinyCAD!

Tiny0+8 is an open source schematic capture program" Use Tiny0+8 to draw your own circuit diagrams"

,ou can lay out circuit diagrams using the supplied libraries" +lternatiely$ there is a component library editorbuilt into Tiny0+8 @ so you can easily create your own symbols" ,ou may also find more libraries on the

,ahoo group that other users hae drawn for you"

*nce you hae drawn your design$ you can use the special functions to automatically add symbol references$chec< your design against rules of correctness and create a parts list" Tiny0+8 can also eAport a net lists forimport into P01 layout programs"

*nce you hae your design you can copy and paste it into other pac


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Contents

0opyright #33B6#332$!55!6!5#4 .att Pyne""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" !

0redits""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" !

1 Overview of TinyCAD Features....................................................................7

2 Drawing a design........................................................................................9

To place symbols in to your design"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 3

To wire up your design""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 3

diting your drawing"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" ##

Symbol attributes"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" #!

+utomatic 9unction placement""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""#!

+danced drawing techniCues"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" #4

+dding power"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" #4

Using labels"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" #B

+dding buses""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" #2+dding teAt and annotations""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" #D

8rawing rectangles and ellipses"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" #D

8rawing polygons E polylines"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" #D

0hanging the drawing order"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" #7

3 An introduction to libraries.......................................................................19

Symbol pins""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" !#

.ultiple parts per pac


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Using both hierarchical designs and multiple sheets""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 4!

7 )sing +!,C# wit* TinyCAD.........................................................................33

The Tiny0+8 SP(0 system""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 44

The SP(0 template strings""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""42

The Spice Prologue and pilogue"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 42The SP(0 -UN node"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 4D

The 5 net"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 4D

Generation of the SP(0 file""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 4D

+danced SP(0 file generation with conditional statements"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 47

- enu reference........................................................................................39

File menu"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 43

dit menu"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" B!

Library menu""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" B2

Symbol menu""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" B7

Special menu"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" BH

*ptions menu"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 25

9 Toolbar reference......................................................................................"3

+nnotation toolbar""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 24

8rawing toolbar"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 2B

1loc< toolbar """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 2D

8rawing toolbar"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 2H

File toolbar""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" D!

1/ C*ange log...............................................................................................("

0hanges since ersion !"H5"5!"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" D2

0hanges since ersion !"H5"5#"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" DD

0hanges since ersion !"H5"55"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" D7

0hanges since ersion !"75"54"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" D7

0hanges since ersion !"75"55 1uild !BH 1eta""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" DH

0hanges since ersion !"D5"5#"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" D3

0hanges since ersion !"25"55"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 75

11 C*anges and0or corrections ......................................................................71

)ow to build Tiny0+8""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 7#

12 FA Freuently As4ed uestions 5 FA....................................................73


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# C ' ( P ) * $ 1

1 Overview of TinyCAD Features

7


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Overview of TinyCAD Features

8 TinyCAD user manual version 2.80.06 Septemer 20!3


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! C ' ( P ) * $ 2

2 Drawing a esign

8esigns are created from built6in ob9ects such as wires$ 9unctions$ etc"$ and from imported component symbols$

such as diodes$ transistors$ etc"

)o p"ace sy#o"s in to your design

#" Use the Symbol pic


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To wire up your #esi$n

4" ery time you clic< with the left mouse button you will place a corner in your wire"

B" 0ontinue drawing the wire" To end$ select another actie point %which is shown with the red circle&"

2" Notice how the wire tool is magnetic towards symbolsJ pins and other wires"

D" 'hen you place a wire connecting to another wire a 9unction is placed for you automatically"

)ip - (t is a common mista


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%#itin$ your #rawin$

*diting your dra+ing

*nce a symbol has been placed you may want to

change its properties" The edit tool in the drawingtoolbar is use for editing already placed ob9ects"Normally you donJt hae to select the edit tool as it isthe default tool after you hae finished with a differenttool" To select it manually clic< on the white mousearrow toolbar button"

'hilst drawing an ob9ect you may wish to moe toanother area of the design$ so that you can moe theob9ect to a part of the design not currently shown" 8othis by dragging with the middle mouse button%normally the scroll6wheel& to pan the drawing$ or usethe scroll6bars" ,ou can also use the scroll6wheel tooom in and out on your drawing"

Use the edit tool in the normal 'indowsI way @ clic then Tiny0+8 would output:

R3 7 9 10K

Notice how each of the %& and %& parts of the line hae been replaced by the net information"

N*T: The obserant will spot there is a subtlety in the way it generated the refnum" This is the symbols

reference$ which would normally be something li


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T&e SC% 4)5 no#e

)he P:C* $ node

Normally a spice file contains not only the circuit but also commands to tell the SP(0 simulator what to

do with it"

,ou can insert these special commands at the head and end of a file by using a special SP(0 symbolcalled the -un node" +s no SP(0 symbols are included with Tiny0+8 you will hae to create the -unnode yourself"

The -UN node is a normal Tiny0+8 symbol$ eAcept it has no pins and has no SP(0 model" (t doeshae a SP(0 prologue and epilogue template"

,ou must set a priority of 5 for both the prologue and epilogue" This means its prologue will always gofirst %assuming no other run nodes& and its epilogue will always go last"

This special symbol will then eApand into your run6time parameters and place the correct epilogue for theSP(0 file"

(f you want to add your special line at the head of the file$ simply add it to the run nodeIs prologue 6remember it will eApand any %attributes& you put in"

,ou must place one -UN node on eery SP(0 simulation circuit$ and this will add the correct SP(0lines to for the SP(0 engine"

(n your library you may hae more than one type of -un node$ each one instructing SP(0 to performslightly different operations$ howeer$ you should not place more than one -un node on each circuit"

)he 607 net

ery SP(0 circuit reCuires a 5 node" This is the ground for the circuit" ,ou must ma


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A#van'e# SC% file $eneration wit& 'on#itional statements

(d!anced P:C* %i"e generation +ith conditiona"state#ents

For really sophisticated uses of Tiny0+8Js SP(0 engine$ you may use conditional statements in yourtemplates" There are three basic types of conditional statement$ these are:

#" Test to see if an attribute is defined on the symbol

!" Test to see if an attribute is an empty string on the symbol

4" Test to see if a pin of the symbol is connected

For each conditional statement$ you may specify a true string and a false string" (f the condition is true thenthe macro will ealuate to the true string$ and the entire macro will be replaced by the true string$ otherwisethe entire macro will be replaced by the false string"

,ou can embed one conditional macro statement inside another one$ there is no special syntaA reCuired for this"

The syntaA for the conditional statements is:

?( defined( attributename ), true strin, fa!se strin )

?( n"t#defined( attributename ), true strin, fa!se strin )

?( emt( attributename ), true strin, fa!se strin )

?( n"t#emt( attributename ), true strin, fa!se strin )

?( &"nne&ted( innumber ), true strin, fa!se strin )

?( n"t#&"nne&ted( innumber ), true strin, fa!se strin )

(f you wish to place a Cuestion mar< % Q & into your template$ then you can escape it by placing the a V infront of it"

C&apter 7 )sin$ SC% wit& TinyCAD 37


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H C ' ( P ) * $ button the options will be applied to the design" ach symbol specified will be gien anew reference" (f you select remoe references then each symbol will hae its references changed bac< to one

with a Q instead of a alue"

,ou may select 0ancel to not apply the reference generator"

Create Parts List

This option creates a list of all the parts used in the design" This list is sorted by symbol reference$ and all partsof the same type are listed together"

ssentially this is a list of parts that need to be purchased to ma


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Options menu

/ptions #enu

ettings

+*ow 6rid

This causes the grid to be displayed" (f the grid is too fine to show at the current oom then it will not bedisplayed" To see the grid oom in" (f the fine grid is enabled then the points which lie on the normal gridas well are shown as crosses"

+na% to 6rid

This option should under normal conditions be selected" This option ma


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Options menu

+croll bar incre'ents

This determines by how much the design will be scrolled when the arrows at the side of each scroll bar isclic


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3 C ' ( P ) * $ 9

0 Tool"ar reference

(nnotation too"ar

(rc seg#ent

The only arcs which can be drawn are the arcs which represent one Cuarter of an ellipse" +rcs are forannotating your designs only$ they are ignored by all the special tools"

+rc segments are now part of the polyline tool" See the section on +dding TeAt and +nnotations for fulldetails"

To draw an arc select the starting point with the left mouse button" Then moe or drag to the ending point andclic< again with the left mouse button" (f the arc bows the wrong way$ then draw the arc in the other directionor select the other arc type %either arc in or arc out& from the toolbar menu or conteAt menu"

,ou may change the width of the line the arc is drawn with or the color of the fill of the arc by using the tooldialogue normally displayed in the top right hand corner of the drawing"

+rcs can be edited as part of a polygon or polyline"

*""ipse

llipses are only used to annotate designs" They are ignored by all the Special tools"

The only ellipses that can be drawn are those which can be enclosed by a rectangle with its edges parallel to theedges of the design"

To draw an ellipse you must start by moing to one corner of the rectangle that will enclose the ellipse %thisrectangle is not actually displayed&" 0lic< with the left mouse button" Now as you moe or drag the mouse theellipse will be shown" *nce the ellipse is in the correct position clic< again with the left mouse button"

,ou may change the width of the line the arc is drawn with or the color of the fill of the arc by using the tooldialogue normally displayed in the top right hand corner of the drawing"

+3


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Annotation toolar

Po"y"ine and po"ygons

Polylines and polygons are proided to annotate your diagrams only" For the most part$ they are ignoredby all the special tools"

These tools are new to Tiny0+8 ersion #"H5"55$ and are described fully in the +dding TeAt and+nnotations section"

$ectang"e

-ectangles are only used to annotate designs" They are ignored by all the Special tools"

To draw rectangles$ select the tool on the Toolbar" Then go to the position for one of the corners of therectangle" 0lic< with the left mouse button" Now as you moe or drag the mouse the rectangle will beshown" *nce the -ectangle is in the correct position clic< again with the left mouse button" ,ou maychange the width of the line the arc is drawn with or the color of the fill of the arc by using the tooldialogue normally displayed in the top right hand corner of the drawing"

)et

TeAt is used only to annotate designs$ it is ignored by the special tools" 8o not confuse the teAt tool withthe label tool$ which produces electrically actie net names"

(t is often reCuired to hae bars oer the letters in the teAt" This can be done by placing the W characterbefore each letter that needs a bar oer it" (f a whole word needs to hae a bar placed oer it then eachletter in that word must hae a W before it"

Type the teAt you wish to add in the dialogue boA" +s you enter teAt a rectangle will appear neAt to themouse$ indicating the sie and position of the teAt"

.oe this rectangle with the mouse to where you wish to place it and clic< with the left hand button"

,ou can cancel entering teAt by clic


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Drawin$ toolar

Normally the bus is loc


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lo'/ toolar

>"oc too"ar

Mo!e >"oc

This option allows you to moe parts of the design around" The connections by wires are not preseredwhen this option is used" (f you wish to "oc

This option allows you to moe parts of the design$ "oc

This option allows you to ma"oc

This option allows you to rotate and mirror %flip& a selected area of the design" This ma


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lo'/ toolar

correct the mista


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Drawin$ toolar

ra+ing too"ar

e"ete :te#

This option allow you to delete ob9ects in the design"

To delete an item first select the dit (tem tool" Select the item to delete by clic


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Drawin$ toolar

'hen two wires meet$ a 9unction indicates that they are electrically 9oined" This information is used by thespecial tools to generate net lists and chec< the electrical rules" 'hen two wires meet or cross it is assumed theyare not 9oined unless a 9unction is placed at the crossing point"

To place a 9unction select this option$ then moe the 9unction to the location in the design where you wish toplace it and then clic< with the left mouse button" 'hen you hae finished placing$ either select a new tool orclic< with the right mouse button" This will select the dit (tem in the dit menu for you"

=unctions cannot be edited$ but they can be moed or deleted"

Lae"

Labels indicate a connection to the wire which runs beneath them" +ny two wires with the same label nameaboe them are considered to be connected"

This can be useful when two parts of a circuit need to be connected but are a long way apart on the diagram$ orone point needs to be connected to a large number of others"

(t is often reCuired to hae bars oer the letters in the label" This can be done by placing the W character beforeeach letter that needs a bar oer it" (f a whole word needs to hae a bar placed oer it then each letter in that

word must hae a W before it"

Type the teAt you wish to add in the dialogue boA" +s you enter teAt a rectangle will appear neAt to the mouse$indicating the sie and position of the teAt"

.oe this rectangle with the mouse to where you wish to place it and clic< with the left hand button"

+fter placing a label$ if the teAt has a number on the end of it$ it is automatically incremented or decrementeddepending on the Name (ncrement or Name 8ecrement option selected in the -epeat 8irections menu %in thedit menu&"

,ou can cancel entering teAt by clic


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Drawin$ toolar

which is the alue of the power it proides %such as 2?$ GN8$ 5? etc"&" +ll power ob9ects with the samealue are considered connected to one another; een if they hae different shapes"

,ou should connect wires to the power items at the end of their pins$ otherwise they will not consideredto be connected"

0ertain symbols are automatically connected to power without the connection being shown %for eAamplethe 7B55$ although no power pins are shown$ it is automatically connected to ?00 and GN8&" 'henusing these symbols$ you should ma


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Drawin$ toolar

'ires cannot be edited$ but they can be moed$ dragged or deleted"

'ires can be repeated"

=oo#

The oom tool enables you to easily enlarge the iew of the design" *nce selected you may enlarge the iew byclic


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File toolar

Fi"e too"ar

e+

This gets rid of the current design" +ll drawings in the current design are remoed" (f the current designhas not been saed then you are as


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File toolar

Print

Use this option print to any installed the windows printer"

(f the drawing is larger than the paper sie of the printer$ then it is split up oer as many pages as it ta


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#5 C ' ( P ) * $ 1 0

1 C+ange log

Changes since !ersion 2.


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C&an$es sin'e version 2.80.02

1ug FiA Y45H34#D 6 (mproed symbol IanchorI handling when the symbol has no eAplicit origin mar


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Changes since !ersion 2.


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conseCuence of this type fiA$ new Tiny0+8 design files that contain hierarchical symbols cannot be readby older ersions of Tiny0+8$ but newer ersions of Tiny0+8 will still be able to read older designfiles"

1ug FiA YQQQQQQQ implemented" Atended the design rule chec


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C&an$es sin'e version 2.70.00 uil# 2*8 eta

numeric pin names and numbers" Than


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C&an$es sin'e version 2.60.0!

Ano+n >ugs

+ll


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11 C+anges anor corrections

This program is open6source and so is all of the documentation" ,ou can download the source )T.L from

thesourceforgeweb6site" The source and documentation is stored in a Subersion %S?N& repository" ,ou canuse a free program called TortoiseS?N if you wish to chec< out a copy of the source or documentation fromthe repository" *nly registered Tiny0+8 deelopers can commit changes to the repository$ but you can alsoemail your changed files to 8on dot Lucas at *ri


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12 FA3 4 Fre5uently As6e 3uestions 7 FA3

#" $. ( hae created my drawing and tried to create a Net List$ but ( did not


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FA 9 Fre:uently As/e# uestions ; FA

(f you edit a symbol and change its INameI parameter it does not create a copy when you I_Store`I it$ 9ust the symbolname changes"

(f you want to add a modified ersion of symbol $ select the symbol in the library list$ Xright clic

tinycad_manual.pdf

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