OrCAD Allegro Files Extension and their Abbreviations.

 

Cadence Allegro files Extensions and what they contain.

It is More Important To Know about Generated OrCAD Allegro files and their extensions for PCB Design Engineers to Answer in interviews.

As an  Engineer in Electronics & Hardware Design Field, we’re more focused on how to do something than the why behind it.

This article will show you what are files generating during the Design and what are the information belongs to it.

.dsn – Data Source Name – that contains OrCAD Schematic Information.

 .olb – OrCAD Library File

.opj – OrCAD Project File

.brd - Board database file–typically the printed circuit board (PCB) design file that you add symbols             and a net list to when designing the board.

.pad - A  Extension for padstack.

.jrl - A journal file contains a record of events—menu picks, keyboard, and so on—which are                           recorded for each session in Allegro. Its helps to coordinate and link parameters with Design.

.dra - Drawing file–graphics that can be graphically edited and used to create the binary symbols                    that are used in the .brd file.

.psm - Package symbol, footprint.

.ssm - Shape symbol–when a pad is an irregular shape (not a circle, square, rectangle, and so on).

.fsm - Flash symbol–used to define a thermal relief pad. There is an editor that helps you                                   automatically create these.

.osm - Format symbol, (other symbol)–typically graphics, notes,drawing format, notes, logo’s.

.bsm - Mechanical symbol (board symbol) that gets added to a board with no logic attached.

.mdd - Module definitions–sections of a board design that include package symbols and logical connections.

.scr - Script or macro file–an ASCII text file containing Allegro commands that can be replayed to                   reproduce the same results as if you were selecting those commands.

.tech - Technology file–ASCII file of constraints and design rules.

.mcm - Multi-chip Module File (APD) A design file similar to an Allegro .brd file, but different                              technology

.txt - Text file, such as that used for parameters. Device files are .txt that contain the definition of a                logical device including device type, package symbol, pin count, functions, and swappability.

.tag - Keeps track of the last board worked on in your current directory.Without it, Allegro will open            up a new board file.

 

.INI - This file keeps track of the path your working file is in. The. INI file also keeps track of the                       window location, the toolbar, and the status of whether the Control Panel is docked and it's                   location. DO NOT EDIT THIS FILE, if you are having problems with Allegro. This file can be                     deleted as a form of troubleshooting. The file will be recreated automatically.

 

.geo - This file remembers the location of forms the last time they were used and places the same                      type of form in the same location the next time it is used. DO NOT EDIT THIS FILE!

 

.color - Color view—defines which subclass graphics will be visible or invisible.This file is                                      automatically created when an artwork film control is defined or can be user defined.

The meaning of things is just as important as the doing, though. If you better understand the meaning behind the doing it’s likely you won’t be struggling to figure out how to do something at your next deadline.

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