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How To Open Pcb File In Allegro

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In the Allegro 17.2-2016 release, several features have been enhanced to improve the ease of use of the Allegro PCB Editor. New enhancements include: Visibility Pane with access to mask layers and zones: The Visibility Pane has been enhanced to allow designers access and control of layer content more quickly and more efficiently. Different from Altium Designer, the default format of NC Drill Files exported by Cadence Allegro is not Excellon's. Therefore, prior to real generation of NC Drill Files, it's necessary to set concerning parameters by clicking ManufactureNCNC Parameters to enter NC Parameters dialogue. In NC Parameters dialogue, items of Output file and Excellon format need to be determined.

I was working on a layout but suddenly allegro crashed & my entire work is gone.Is there any way to retrieve board file.

Solution :-
Use allegro generated journal file *.jrl to replay all the operations that you had done before crashing.

Allegro Journal File :-
*.jrl A journal file contains a record of events—menu picks,keyboard, and so on—which are recorded for each session in Allegro.

If you have your last saved database or better yet an even newer autosave database and your journal file then yes you can generate a replay script that will rerun the commands.

Note of caution: Do not try reopening your current database without copying your database or autosave and the journal file to a safe location,or atleast the journal file. If you do reopen the database you chance over-writing the journal data and then you will never be able to recover your lost commands.

Logic on how to hack the journal file.
The journal file (.jrl) will need to be parsed out to include all command after the latest save and only include the command lines as the other lines in the .jrl file are comments only and will cause your replay script to fail. The command lines all begin with i and the comments all begin with t. Once you have created the script from the .jrl then you can replay it using File-Script-Replay.Note after parsing the journal [*.jrl] file the extension should be changed to script [*.scr].

1. Open the journal file in any of the advanced text editors i prefer gvim editor on windows platform or in UNIX.
Download latest version from :- http://www.vim.org/download.php
2. Select only the time stamp field and delete.[CNTRL V+PAGE DOWN (with the time stamp in the first field selected)].
3. Use command :1,$ s/i//g to delete all i from all lines .
4. Use :1,$ s//#/g to comment all the lines starting with / i. e /t,/w etc..
6. Open the database and run the *.scr file using script runner.
7.All operations done before the crash starts running in a sequential mode and you have successfully recovered lost data...
Allegro
Note :- Its important that you follow the steps as proposed above to successfully recreate the script file.All fillin commands should be manually commented or deleted.
TIP: Open the journal file and delete all other data other than the required operations since last save or autosave command.

Steps to recover using Skill code or built in feature in Allegro:
Allegro 15.2 and above
If your running Allegro 15.2 and above it will automatically generate the Script from the *.jrl file..
1.Copy the journal file only of the crashed database to some other location.
3.Go to 'file' menu and select the 'script' option.
4.Click on the 'Generate' button an browse to the copied journal file.
5..Click on 'Replay' button to automatically create a *.scr file from the browsed journal file and perform a replay.
6.You have successfully recovered lost data..

Allegro 15.1 and below
If you do not have 15.2 then there is a skill routine which will do this for you, so you don't need to hack the *.jrl file yourself.The skill routine 'REPLAY.il'The skill file is uploaded in Else you need to hack the skill routine as mentioned above..
The Skill file REPLAY.il is available @ http://www.esnips.com/web/CadenceAllegroFiles
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How to include our free library content in your OrCAD/Allegro Libraries.

OrCAD/Allegro 17.2 or later with Library Loader V2.37 or later

1. Click Settings in Library Loader

2. Select “Allegro 17 or later” from the Version drop-down. Then set the paths by clicking the browse buttons for the padpath (folder containing the padstack (*.pad) files, psmpath (folder containing the package symbol (*.psm) and package drawing (*.dra) files, and steppath (folder containing the 3D STEP (*.stp) files.

How To Open Pcb File In Allegro


Note: These paths can be determined by reviewing them in the Allegro User Preferences Editor (“User Preferences….” from the Setup menu in the PCB Editor)

Allegro Pcb Viewer Free Download

3. To prevent these instructions from showing every time you download a part, please uncheck “Show Library Import Instructions”. If you want to review these at any point, you can click the Help link in the same dialog.

4. Click OK to accept the Settings

OrCAD Capture 17.2 or later

1. Select Import->Library XML from the File menu.

2. Click Browse to Open the the *.xml file from your Downloads Folder. Then click OK.

3. Select Open->Library from the File menu.

4. Select the the *.OLB file from your Downloads Folder and click Open.

5.

5. Double-click the symbol name (Manufacturer Part Number) to preview the Symbol.


Allegro PCB 17.2 or later

1. Select Open… from the File menu

2. Browse to your psmpath and select the Symbol Drawing (*.dra) for the downloaded part. Note: If you are unsure of the name it can be found in the value of the “PCB Footprint” package property of the OrCAD Capture symbol. Then click Open.

3. If the downloaded part included a 3D model, select “Step Package Mapping…” from the Setup menu

4. Review the pre-selected Primary Model and then click Save followed by Close.

5. Select “3D Canvas” from the View menu.

Library Loader V2.36 or earlier

1 – Click Settings in Library Loader.

2 – Select the appropriate version

3 – To prevent these instructions from showing every time you download a part, please uncheck “Show Library Import Instructions”. If you want to review these at any point, you can click the Help link in the same dialog.

4 – Click OK to accept the Settings

OrCAD Capture

1 – Select Import->EDIF from the File menu.

2 – Click Browse to Open the the *.edf file from your Downloads Folder. If the “Configuration file” is not preset to the EDI2CAP.CFG from the OrCAD installation directory, you will also find this file in your Downloads Folder. Then click OK.

3 – Click OK to accept the warnings.

4 – Select Open->Library from the File menu.

5 – Select the the *.olb file from your Downloads Folder and click Open.

6 – Double-click the symbol name (Manufacturer Part Number) to preview the Symbol.

Allegro PCB

IMPORTANT! – You must ensure that your Downloads Folder is included in the Library padpath:

How To Open Pcb File In Allegro Usb

1 – Select “User Preferences….” from the Setup menu in the PCB Editor. Click the Browse (…) button against padpath under the Paths->Library Category.

2 – Click the “New (Insert)” icon and then click “…” to browse to your Downloads Folder. Then click OK.

Start here if padpath includes your Downloads Folder.

How To Open Pcb File In Allegro

1 – Double-click the BuildFootprint.bat file from your Downloads Folder.

2- If the downloaded component has D-shaped pads, the d-shape.scr script will run first to generate the d-shape drawing. Once this has finished, select “Zoom Fit” from the View menu to preview. Then click the cross (X) in the top right corner or select “Exit” from the File menu to close the editor.

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3 – The scripts will continue to run to generate the required padstacks and then use these to build the footprint. Once this has finished, select “Zoom Fit” from the View menu to preview. Then click the cross (X) in the top right corner or select “Exit” from the File menu to close the editor. Click Yes to save changes.

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4 – Click the cross (X) in the top right corner of the command prompt.

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5 – Done