Application Note
Extracta
Page 1 von 9
Title:
Routing with Jumper
Product:
OrCAD / Allegro PCB Editor
Summary:
How to setup and work with jumpers in
single layer designs.
Author/Date: Beate Wilke / 24.06.2010
Table of Contents
1
Jumpers (Etch Edit Mode) .............................................................................................. 2
1.1
Define jumper symbol with through hole pins ......................................................... 2
1.2
Define jumper symbol with SMD pins..................................................................... 3
1.3
Setup board file...................................................................................................... 4
1.4
Routing with jumper ............................................................................................... 7
Application Note
Extracta
Page 2 von 9
1 Jumpers (Etch Edit Mode)
1.1 Define jumper symbol with through hole pins
Open the file
jumper_base.dra
From the main menu select Setup-> Design Parameters – Design Tab
In the Drawing parameters form, enable the Jumper checkbox. This checkbox
defines the symbol as a “jumper”.
Close the parameters form.
Add a via (jvia_55p) at location x:0.0 y:0.0
Application Note
Extracta
Page 3 von 9
Copy the via to location x:200.0 y:0.0 location
Add jumper symbol graphics, place boundary, and refdes drawing elements.
Create and save the symbol as jumper_200.
1.2 Define jumper symbol with SMD pins
To create a SMD jumper you only need one further step. Place 2 vias described in
chapter 1.1. Then go to Tools > Padstacks > Replace and select one via.
Got to Option Panel and put in the SMD pad in New field. Select Replace. This
should replace both vias to SMD padstack.
Application Note
Extracta
Page 4 von 9
1.3 Setup board file
Open the file
jumper.brd
Add the JUMPER_LIST property to the board drawing.
Edit->Properties
In the Mini-status Find Filter, set Find By Name value to Drawing
Application Note
Extracta
Page 5 von 9
Select More button
Move Drawing Select to the Selected objects panel, then select OK button
Add the JUMPER_LIST to the Properties panel.
Application Note
Extracta
Page 6 von 9
Enter the following list of jumper model names separated by colon in the property
value field.
jumper_250:jumper_300:jumper_400
Apply and close the edit properties form.
In Constraint Manager, add jvia_55 to the DEFAULT Via List.
Application Note
Extracta
Page 7 von 9
1.4 Routing with jumper
Start add connect
Select pin 2 of component C4
Add a Cline to the right at location x1237.5 y1150.0
Open the RMB pop up menu and place the cursor over the Add jumper entry
A list of jumper names defined in the JUMPER_LIST property field is displayed.
Jumper names that do not have corresponding jumper symbols are grayed out or
disabled. We don’t have unavailable symbols in our example.
Application Note
Extracta
Page 8 von 9
Select jumper_400
The jumper anchor point is added at the last pick.
Moving the cursor around, the jumper symbol is rotated.
To allow any angle rotation, in the etch edit mini status options form, set the line
angle to Off
Application Note
Extracta
Page 9 von 9
Pick a second location to position the jumper.
Finish the connection.
Using the above steps, add more jumpers and complete the remaining connections.
Dostları ilə paylaş: |