Cadence Allegro Free

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Dagny Westall

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Aug 3, 2024, 5:10:57 PM8/3/24

to nousmavispa

I need to display filled pads using allegro viewer 16.5. This was simple in 15.7, pull-down menus dot me there quickly. But 16.5 I have spent a great deal of time looking for this and have not found it yet.

My system has a problem with Allegro 17.2. At first all of the text was to small to read and the icons too small to make out even with the Icon setting set to"large" I was able to resolve the issue by editing the properties of Allegro.exe under the tab compatibility, then selecting "Change high DPI settings", then selecting the check box "Override high DPI scaling behavior" with the setting under "Scaling performed by:" set to "System". This definitely solved the problem when I re-opened Allegro, I was very happy!!!

Until, I opened a sub-menu/drop-down. They open so large on my screen that the buttons at the bottom are not accessible and half of the text cannot be seen. This makes the program unusable. I've loaded the latest ISR and I also tried deleting the allegro.geo file but it had no affect. I'm currently at a total loss with deadlines looming... Help!!!

Change the dpi settings back to default (to start) then restart Allegro, with the latest ISR it should recognise if you are using a 4K monitor and adjust icons and toolbars to suit. (Make sure your graphics card drivers are up to date with the vendor as well). If this doesn't help go to Setup - User Preferences - ui - general and adjust the tbriconsize to suit. You can also adjust the menu font size under ui - font - fontsize, both settings will need a tool restart.

You should use the Cadence switchversion program to assign the file associations. The error message indicates that you are accessing an allegro.exe from one release and you have your PATH variable pointing to a difference release. Once you use the switchversion program to assign file associations the association will change automatically when you switch releases.

I didn't install the software but I would assume that a standard installation was done. The other designers that I checked with do not have it listed either. Do I need to track down the software from IT and try to find it there? Thanks

Depending on how the software was installed some of the shortcuts may not appear in the Start Menu, not sure why but I have seen it happen in the past. Anyway you will find the "Cadence Switch Release" program in the following location:

%CDSROOT% is the Windows Environmental Variable which is mapped to the Root Cadence Installation directory. You can type the exact folder location above in Window Explorer and it will navigate you to the appropriate directory were you can find "switchversion.exe"

I did a regsvr32 "C:\Program Files\Cadence Design Systems\Allegro Free Physical Viewers 16.6\tools\pcb\bin\callbackMgr.dll" to register the dll but I get "Dll_Name was loaded, but the DllRegisterServer or DllUnregisterServer entry point was not found."

I too am having very similar problems after installing allegro_free_viewer_16-6. After installing the application I got the message "This application has failed to start because callbackMgr.dll was not found. Re-installing the application may fix this problem."

I'm trying to create a simple report to show the heights of each component (top and bottom). I use this data for the side view on the assembly drawing. The heights are saved as a shape outline on class PACKAGE GEOMETRY subclass PLACE_BOUND_TOP.

Thanks for the quick response. Did you create this code manually? I was trying to create a report from the allegro form through Tools->Reports->New/Edit and all the options and tabs were very confusing to me. But it looks like you created your own code.

I have a programming background and wanted to understand the code for myself. I understand everything from Line 9 and below (SYM_NAME). Before that I don't understand. I see an OR statement but no curly braces as in traditional programming grouping the statement.

Also when running this code I receive multiple entries for a single part. For example, I'd see R100 4 consecutive times (with exact information). I think it's how the shape is created in the library because when I show element on the shape there are multiple XY locations.