View source for ESim/C2/Mapping-Components-with-Footprints/English




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|| '''Visual cue'''
|| '''Narration'''
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Opening Slide
|| Welcome to the spoken tutorial on “'''Mapping components''' with''' footprints'''”.
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|| '''Show Slide:'''

Learning Objectives
|| In this tutorial, we will learn to :
* Add '''connectors '''to a''' schematic.'''
* '''Map components''' with '''footprints''' using '''CvPcb.'''
* Generate '''netlist''' for '''PCB design.'''

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|| '''Show Slide:'''

System Requirements
|| This tutorial is recorded using-
* '''Ubuntu Linux OS version 16.04'''
* '''eSim '''version '''1.1.2'''

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|| '''Show Slide:'''

Prerequisites
|| To practice this tutorial, you should know:
* The basic concepts of '''electronic circuits.'''
* To create''' circuit schematic''' in '''eSim.'''
* To '''simulate''' the '''netlist''' in '''eSim.'''


If not, watch the prerequisite '''eSim''' spoken tutorials on this website.
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|| '''eSim Main window:'''
|| I have already opened '''eSim''' on my machine

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|| '''eSim Main window:'''

To open a project
|| Let us open example''' “7805VoltageRegulator”''' from the''' Examples''' folder of '''eSim.'''
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|| '''eSim Main window:'''

Click on '''Open project'''
>>

Double click on '''Downloads'''

>>

Double click '''eSim-1.1.2 '''folder

>> 

Double click '''Examples'''

>>

Click on '''7805VoltageRegulator'''

>>

Click on '''Open'''
|| Click on the '''Open Project''' button from the left toolbar.


Then browse to the '''directory''' where you have installed '''eSim.'''


I will double-click on '''Downloads'''.


Double-click on '''eSim hyphen 1.1.2'''.


Double-click on '''Examples'''.


Click on '''7805VoltageRegulator.'''


Click on '''Open '''button at the bottom right corner.

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|| '''eSim Main window:'''

Click on''' Open Schematic '''
|| 

To open the '''schematic''', click on '''Open Schematic button '''on the left toolbar.
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|| '''eSim Schematic Editor Window:'''


Scroll key or press '''F1 '''to zoom in


Point the cursor to '''V1 (Sine) '''block''' '''and


Point the cursor to '''Lm_7805''' block.
|| The''' eSim Schematic Editor '''opens.


I will zoom into the '''schematic'''.


This circuit uses''' AC sine''' wave as input.


And '''Lm_7805''' '''subcircuit '''as a '''voltage regulator.'''
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|| Switch back to the '''eSim Main''' window
|| I will switch back to the '''eSim Main''' window.

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|| '''eSim Main''' window:

Click on '''Simulation'''

>>


Point cursor on '''v(in1,in2) ngspice plot'''

>>

Point cursor on '''v(out) ngspice plot'''
|| Click on '''Simulation''' button on the left toolbar.


We have given the '''AC signal''' as input.


We can see the '''rectified 5 volts DC '''output.
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|| 

Switch back to the '''eSim Main''' window
|| Let us learn how to '''map footprints''' with '''components'''.


I will switch back to '''eSim Schematic Editor'''.
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|| '''eSim Schematic Editor '''window:

Hover the mouse over''' plot_v1, In1, In2 , sine'''
|| The '''schematic''' contains '''plots, labels''' and '''sources''' which are essential for '''simulation'''.


These '''components''' are not required for '''PCB designing.'''

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|| '''eSim Schematic Editor Window:'''

Right click on '''sine source'''

>>

select '''Delete Component '''option


Right click on '''plot_v1 i.e U1 component'''

>>

Select the '''Delete Component '''option
|| Let us delete the '''components''' that are not required for '''PCB designing'''.


Right-click on '''sine source.'''


Select the '''Delete Component '''option.


Right-click on '''plot_v1 i.e. U1 component.'''


And select the '''Delete Component '''option.
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|| 
|| Similarly, we will delete the remaining '''components''' which are not required.
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|| '''eSim Schematic Editor '''window:

Show '''DeletedProbesAndLabels.sch'''
|| I have deleted other '''components''' and their connections. 

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|| 


|| Let us now add a '''connector '''for the output of the '''circuit''' '''schematic'''.
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|| '''eSim Schematic Editor '''window:

Click on '''Place component '''

>>

Click on '''editor'''.
|| Click on '''Place Component '''button from the right toolbar.


Click anywhere on the '''editor.'''
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|| '''Component Selection''' window:

Type '''Conn ''' in '''Filter '''field


Select '''Conn underscore 01x02'''


Click on '''OK'''
|| Type '''Conn '''in the''' Filter '''field.


Click on '''Conn underscore 01x02.'''


Click on '''OK '''button at the bottom right of the '''Component Selection''' window.
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|| 
|| '''Conn underscore 01x02 '''will appear to be tied to the cursor.
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|| '''eSim Schematic Editor '''window:



Click once, anywhere on the right hand side of the '''schematic'''.
|| Let us place the '''Conn <span style="color:#252525;">underscore </span>01x02''' on the right side of the '''schematic'''.


Click once to place the '''connector''' on the right side of the '''schematic'''.
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|| '''eSim Schematic Editor '''window''':'''




Click on '''editor'''




Click anywhere on the '''eSim Schematic Editor '''window
|| We also need a '''connector''' at the input to connect the external '''power supply.'''


We have already selected '''Place component''' tool.


Click anywhere on the '''eSim Schematic Editor '''window.
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|| '''Component selection '''window:

Type '''Screw_Terminal '''

>>

select '''Screw_Terminal_01x02''' from the list.

>>


Click '''OK'''



Click once to place the '''Screw underscore Terminal underscore 01x02''' on left side.
|| Type '''Screw underscore Terminal''' in the '''filter '''box.


Click on '''Screw underscore Terminal underscore 01x02 '''from the list.


Click '''OK '''button at the bottom right corner of '''Component Selection''' window.


Click once to place the '''connector''' on the left side of the '''schematic'''. 
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|| '''eSim Schematic Editor window:'''


Right click on''' Screw_Terminal_01x02'''

>>


Click on '''Orient Component,'''and select '''Mirror || '''option.
|| Let us rotate '''Screw underscore Terminal underscore 01x02'''. 


Right-click on '''Screw underscore Terminal underscore 01x02 '''component. 


Select '''Orient Component '''from the drop-down menu and select '''Mirror two '''option.
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|| '''eSim Schematic Editor '''window:


Connecting wires to the '''schematic'''
|| Now, let us connect the '''connectors''' using wires.

We have learnt to place wires earlier in this series.

You can refer to the prerequisite tutorials, if required.


Let us connect '''pin 1''' of '''Screw_Terminal_01x02''' to the wire connecting '''D3''' and '''D4'''.
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|| '''eSim Schematic Editor '''window:

Show rest of the connected wires
|| 

I have connected rest of the '''nodes''' to their respective '''connectors.'''
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|| '''eSim Schematic Editor '''window:


Perform '''Annotation''' and '''ERC'''



|| All the '''components''' are connected.


Let us annotate the '''schematic''' and perform '''ERC '''for the '''circuit''' '''schematic'''.
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|| 
|| Please refer to the prerequisite tutorials to learn how to perform annotation and '''ERC.'''
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|| '''eSim Schematic Editor window:


Press '''Ctrl and S''' key together.


|| Let us now save the '''schematic'''.


Press '''Ctrl '''and''' S''' keys together to save this '''schematic.'''

We will now learn how to map the '''components''' with their''' footprints.'''


'''Footprint''' is the '''layout''' of a '''component''' which is placed on the '''Printed Circuit Board'''. 
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|| '''eSim Schematic Editor '''window:

Click '''Run Cvpcb to associate components and footprints''' button. 
|| 

Click on the '''Run CvPcb to associate components and footprints '''button at the top of the''' eSim Schematic Editor'''.


This opens '''Cvpcb window.'''

|-
||Click on the '''OK '''button.
||If you’re using '''Cvpcb''' for the first time, you will get a confirmation box.

Here, click on the '''OK '''button.

|-
||click on the '''No '''button.
||If you get another dialog box titled '''Confirmation, '''click on '''No''' button.

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|| '''Cvpcb window:'''

Hover the '''cursor''' over the leftmost panel.
|| The '''Cvpcb window''' is divided into three panels.


The left panel shows the '''Libraries''' of the '''footprints'''. 
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|| '''Cvpcb window: Demonstrate'''

Hover the '''cursor''' over the middle panel. 


Hover the '''cursor''' over the first column of the middle panel
|| 

The middle panel is divided into 3 columns.


The first column in the middle panel shows the serial number.

|-
||Hover the '''cursor''' over the second column of the middle panel
||The second column in the middle panel shows the reference '''ID''' of the '''components''' used in the '''schematic'''. 

|-
||Hover the '''cursor''' over the third column of the middle panel
||The third column in the middle panel shows the values of the corresponding '''components''', if any.
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|| '''Cvpcb window:'''

Hover the '''cursor''' over right most panel 
|| 

The right panel gives a list of '''footprints''' available in the '''libraries'''. 
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|| '''Cvpcb window: Demonstrate'''

Hover the cursor to show '''Filter options'''
|| The top menu of '''Cvpcb''' window has 3 options to filter the''' footprints'''.

|-
||Hover the cursor over '''Filter footprint list by keywords'''.
||This will filter the '''footprints''' by '''keywords'''.

|-
||Hover the cursor over '''Filter footprint list by pin count'''.
||This will filter the '''footprints''' by '''pin''' count.

|-
||Hover the cursor over '''Filter footprint list by Library'''.
||This will filter the '''footprints''' by the '''library'''.

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|| 
|| Now we will map the '''components''' with their appropriate '''footprints'''.
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|| '''Cvpcb window: '''

Click on '''Filter footprints list by library'''
|| Click on the option '''Filter footprints list by library''' from the top menu.


If any other filters other than '''Filter footprints list by library '''are selected, please uncheck them.
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|| 
|| Please note that we are designing a '''board''' for '''Through Hole '''components.
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|| Text on screen
|| '''Footprints''' which are meant for '''Through hole''' components, will have '''THT '''in their description.
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|| Text on screen
|| '''Footprints''' which are meant for '''Surface Mount Device''' components, will have '''SMD '''in their description.
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|| '''Cvpcb window: '''

Click on '''C1 '''


Click on '''Capacitors_THT '''from the leftmost panel
|| Click on '''C1, '''the first row '''C1''' will be highlighted.


Click on '''Capacitors_THT '''from the leftmost panel for selection of '''footprints''' of '''Through-hole capacitors'''.
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|| '''Cvpcb window: '''

Hover the '''cursor''' on the right panel
|| The list of '''Capacitors_THT footprints''' for selected component '''C1''' will be available.
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|| '''Footprint Window:'''

Select any footprint from the right most panel

|| We can also view the selected '''footprint'''.

To do so, select any '''footprint '''from the right panel.

|-
||Click '''View selected footprint'''
||Click on '''View selected footprint''' from the top panel.


This will open '''footprint''' window which displays the image of the selected '''footprint'''. 
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|| '''Cvpcb window: '''


Select '''Capacitors_THT:CP_Radial_D5.0mm_P2.50mm'''>> Double-click on it
|| Now let us map the associated '''footprint''' for component '''C1.'''


Let us locate the '''footprint''' with D 5.0 mm and P 2.50 mm. 

Double-click on it to assign this '''footprint'''.

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|| '''Cvpcb window: '''


Click on '''Connectors_Terminal_Blocks '''on the left most panel >>


Locate '''TerminalBlock_Altech_AK300-2_P5.00mm '''in the right most panel


Double click
|| For '''J1 connector''':


Click on '''J1, '''click on '''Connectors_Terminal_Blocks '''from the leftmost panel.


Locate '''TerminalBlock_Altech_AK300-2_P5.00mm '''in the rightmost panel.


Double-click on it to assign this '''footprint''' to '''J1'''.
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|| '''Cvpcb window: '''


Click on '''Pin_Headers '''on the left most panel >>


Locate '''Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm''' from the right most panel >>


Double click
|| For '''J2 connector''':


Click on '''J2''', click on '''Pin_Headers '''from the leftmost panel.


Locate '''Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm '''from the rightmost panel.


Double-click on it.
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|| '''Cvpcb '''window:

Click on''' Lm_7805'''


Click on '''TO_SOT_Packages_THT '''on the left most panel >>


Locate '''T0-220-3_Vertical '''from the right most panel >>


Double click on '''T0-220-3_Vertical'''
|| For '''Lm_7805:'''

Click on''' Lm_7805 '''


Click on '''TO_SOT_Packages_THT '''from the leftmost panel.


Locate '''T0-220-3_Vertical '''from the rightmost panel.


Double-click on it to assign this '''footprint'''.
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|| '''Cvpcb ''' window:

Show rest of the mapped footprints
|| 

I have mapped rest of the '''components''' with their appropriate '''footprints'''.
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|| '''Cvpcb '''window:


Click on '''Save footprint association in schematic component footprint fields '''at left corner of the top toolbar.
|| Now we will save this '''footprint''' association.


Click on '''Save footprint association in schematic component footprint fields''' at the left corner of the top toolbar.
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|| 
|| This is a very important step and should not be skipped.


It assigns the selected '''footprints''' to the components present in the '''schematic'''.
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|| '''eSim Schematic Editor '''window''' :'''


Switch from '''CvPcb''' to '''eSim Schematic Editor''' window.
|| Let us now generate the''' netlist '''of the '''circuit schematic '''required for''' PCB '''layout.


I will go back to the '''eSim Schematic editor''' window.
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|| '''eSim Schematic Editor window:'''

Click on '''Generate netlist '''
|| 

Click on '''Generate netlist '''button at the top of '''eSim Schematic Editor '''window.
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|| '''Netlist '''window:

Click on '''Pcbnew''' tab


Check '''Default '''option 


Click on '''Generate'''
|| 

Click on '''Pcbnew''' tab.


Check the option '''Default format.'''


Click on '''Generate '''button'''.'''
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|| '''Save Netlist File '''window:

Click on '''Save '''button at the bottom right corner
|| 

Then click on '''Save '''button at the bottom right corner.
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|| 
|| '''.net netlist''' file contains information about '''components''' and '''footprints''' assigned.


This is crucial for '''Printed Circuit Board '''designing.
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|| 
|| With this, we come to the end of this tutorial.

Let us summarize.
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|| '''Show Slide:'''

Summary
|| In this tutorial, we learnt to :
* Add '''connectors''' to a '''schematic.'''
* Map components with '''footprints''' using '''CvPcb.'''
* Generate '''netlist''' for '''PCB design.'''

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|| '''Show Slide:'''

'''Forum'''
|| Please post your timed queries in this forum. 
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|| '''Show Slide:'''

'''FOSSEE Forum'''
|| Please post your general queries on '''eSim''' in this forum.
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|| '''Show Slide:'''

'''Textbook Companion'''
|| '''FOSSEE''' team coordinates the '''TBC''' project. 
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|| '''Show Slide:'''

'''Acknowledgment'''

[http://spoken-tutorial.org/ http://spoken-tutorial.org]
|| '''Spoken Tutorial '''Project is funded by '''NMEICT, MHRD,''' Govt. of India.

For more details, visit this website.
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|| '''Previous Slide'''
|| This is Saurabh from '''IIT Bombay''', signing off.

Thank you.
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