RE: Spectre skipping points
Hi David, Without knowing anything about the version you're using, the model, the circuit, or the simulation settings, it's virtually impossible to say. However, the delta in the output signal is very...
View ArticleRE: generating Xnet from netlist or inside constraint manager
You could use an ESPICE model to define the Pin Pair that will act like a pass-thru on the IC, the same way it is done with a Discrete component Analyze > Model Assignment Select the IC on the...
View ArticleRE: Spectre skipping points
hi Andrew, totally understand and was wondering if some quick clue, not expecting exact answer yet. I guess I might have to create a small test case to reproduce and get back to you. P.S., the...
View ArticleRE: PCB Editor Immediately AutoSaving and Closing When Opening Design
It went south. I was working on a design and closed PCB Editor in order to undo some work that ctrl-z couldn't undo. When I reopened the file, it immediately closed. I'll go back to your suggestion and...
View ArticleRE: PCB Editor Immediately AutoSaving and Closing When Opening Design
Moments after my last reply, it went south with the new pcbenv folder. Any other suggestions?
View ArticleRE: Verilog A to symbol
Error found by spectre in `PCNFET', during circuit read-in. ERROR (SFE-23): "/home/v45960/shobhit/nano_model_35/CNFET/PCNFET/veriloga/veriloga.va" 94: The instance `XPCNFET_L2_edge' is referencing an...
View ArticleRE: STEP Question
Thanks for the reply. This will be my next step (no pun intended) to start associating the models with the library parts. Your tips will help! Tom
View ArticleRE: STEP Question
Hi Steve, Mechanical team...... you're funny..... no mechanical team here....... I figured that I would end up needing to source the .stp models myself. I have downloaded a few from Ultra Librarian and...
View ArticleRE: STEP Question
BTW a great source for 3D Step models is here: http://www.3dcontentcentral.com/ I output the STEP from Allegro once the board is designed so we can verify mating of boards and created 3d printer...
View ArticleCollision Detection with PCB in Allegro 3D Canvas
In Allegro 3D Canvas, is there anyway to include the PCB in the Collision Detection calculation? It seems like it detects collisions with symbols just fine like the components on the board and the...
View ArticleReversing the contents of an expanded bus in VIVA
In VIVA, when you expand a bus it yields (top to bottom) bus ... bus . I need the order reversed i.e. MSB on top. Is this possible? And so we come to the part where you chime in and say "no, you lose".
View ArticleRE: Reversing the contents of an expanded bus in VIVA
Just providing some further clarification. I have declared a bus as follows: dout_bus = awvCreateBus("dout_bus" list( \ L("/dout ") L("/dout ") \ L("/dout ") L("/dout ") L("/dout ") L("/dout ") \...
View ArticleRE: Allegro 17.5 Padstacks - Rounded rectangle for IPC SMD Footprints -...
Hi Steve, 17.2... That info helps, I too did some hunting around but came up kind of short. I think for the moment I will just abandon the idea and go with the standard. I do see a case in using them...
View ArticleRE: PCB Editor Immediately AutoSaving and Closing When Opening Design
I know it is a little extreme, but could you try renaming the 17.2 folder (RMB > Rename) in the registry and restart the PCB Editor. PCBENV Folder is not the only place were the configuration is...
View ArticleRE: PCB Editor Immediately AutoSaving and Closing When Opening Design
I wonder if it is some sort of wierd bug related to the auto save user preferences. Have a look in the User Preferences editor and do a search for save. A bunch of preferences should show up. On my...
View ArticleRE: Cadence Specctra (Allegro Router) 17.2 Issues in Windows 7 Pro (64 bit)
Folks, Found the problem. It appears that the latest Nvidia drivers downloaded today seem to have eliminated the problem. Therefore, it was the previous Nvidia graphics driver that was causing issues...
View ArticleADEL - skill : adding signals on the list of outputs to be plot/saved
Hi, In ADEL I want to modify the list of outputs to be plot/saved using skill. Is there any skill procedure to to this? Assume that the simulator is spectre, and the proper session is open in ADEL....
View ArticleRE: Export DXF and ODB through skill
Look for the Brd2odb_help.pdf in the directory where the ODB++ translator executable of Mentor is placed. In the PDF you have a section 'Using Command Line Parameters:' The command line is 'brd2odb...
View ArticleRE: PCB Editor Immediately AutoSaving and Closing When Opening Design
Give Mike's registry suggestion a try but just as an FYI, instead of closing PCB Editor, if you need to revert to a previously saved version just type reopen at the command line followed by return and...
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