export DXF was working, now not?
Allegro XL 16.0I normally export dxf for a customer so he can view in Autocad. Never had a problem until a day or so ago. He said he gets an error opening, so I tried it with Autocad 2007, it...
View ArticleLicensing problem for QRC extraction
Hello,I have a license for QRC extraction.I succeeded at realizing a C extraction. But when I try to realize a R or RC extraction, it gives a licensing error :ERROR (LBRCXM-617): Unable to obtain 1...
View ArticleReading multi-dimensional .cti files in Virtuoso ADE
Hi,I am doing some checks with measured [S] for varactors. I have those data for defined structures from the foundry, I want to compare them with what comes out from the Spectre model of the same...
View Articlefunctional error
I am currently using a config file of a test bench to set all views to functional in order to test the logic. Upon compilation, all instances of a flip-flop produce an error:The cell view...
View ArticleParameter Measurements
Hi everyone, I am using cadence for my project. I want to know how exactly to measure device parameters like impedance,capacitance,resistance for mos transistors. I am using gpdk180 and virtuoso...
View ArticleSetting Up for Substrate Coupling Analysis
Dear All,I was going through Substrate Coupling Analysis User Guide.it has been recommended as :- Note: If you want to use SCA in your RF design flow you are advised to take the CadenceSpectreRF/SCA...
View ArticleNeed USEFUL, PRACTICAL, and FEASIBLE procedures to design, simulate, and...
I am in need of "Useful," "Practical," and "Feasible" procedures on how to design, simulate, and layout RF Transformers using Spectre RF.I have not seen the real-world item in the "model library" of...
View ArticleScroll in grid form with mouse wheel
Hi,I searching for a way how to make the grid form scrollable with the mouse wheel. I slowly rebuild the fgrid.il to play with it and create my testpoint check utility. But when there is too much rows...
View ArticlehInst in cadence encounter???
Hi,I am using cadence encounter..I want to know what is hInst??What it exactly indcate??Because all are inst then how hInst come??when i use db commands at that time i come across that...
View Articleps to pdf converter path in tcl/tk
I am trying to use the pdf export option under Accessories in orcad. I have a pdf converter installed. When I try to print I get "Postscript to pdf converter not found in path" How do I enter the path...
View ArticleSignal Integrity analysis in SOC Encounter
Hello Cadence community.Our foundry provides a 150nm process, and our designs are not high-speed by any means. They have not provided a noise library for use with SOC Encounter v9.12 (.cdb or .udn). I...
View ArticlePSPice Ftable Parameters
Hi there.I'm developing a circuit in PSpice including an Impedance-model, which is simulated within a real and a complex part. Also can be looked like a Resistor and a Capacitor that change values...
View ArticleCadence QRC extraction techfile generation
Dear All,I am trying to set up Cadence QRC extraction set up. In the beginning I am going to QRC using Calibre Input. For that purpose I need to setup a QRC tech file.Steps in the QRC user guide for...
View ArticleDisappearing Holes
Has anyone had holes that disappeared from the NC drill files when outputting a file from Allegro 16.3?I have a board where I have placed a new component. The manufacturing drawing and drill tables...
View ArticleBack Annotate component position from PCB Editor to Orcad Capture
Hello,how can back annotate the position of the placed component from PCB Editor to Orcad Capture?In the old ORCAD LAYOUT with back annotation with the oldlayoutI could findallthe updated...
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Package Symbol "Description" Property
I just recently noticed a "Description" property attached to some package symbols in Allegro (see screenshot). However, when I opened up the package drawing, I can't find where to adjust that...
View Articlecdb to oa tranaslation problem
Hai, When I translated my designs from old cdb to new oa frormat to ensure compatability with IC6.1 , all contacts are missing in layout view. Can somebody suggest a solution for this problem?...
View ArticleAutorouting
I normally don't autoroute anything, but I'd like to try it on a board I'm working on. Problem is this board is 8 layers and my seat is limited to 6 layers. I'm thinking I can remove the layers where I...
View ArticleautosilkUtils.il
Hi All:Hopefully Dave Elder reads this ?I am running Allegro 16.5 S018 and tried to run the autosilkUtils.il SKILL script.Everything seems to work except it does not put the DRCs into the walker...
View Articlehow do I turn off short markers
A new "feature" of xl is dynamically created short markers. These happen whenever you move a line and xl thinks there might be a tiny chance that a short may be created such as a metal5 going over a...
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