How to get hierachical power pins?
Hi, currently I'm working on the top level power distribution analysis. On the top level, I want to specify one power net like vdd, vcc. Then I want to know which nets in all deeper levels are...
View ArticleNetwork file issues, cannot create .psm or .art files on network. Orcad PCB...
Background:A little over a year ago, engineering was forced to upgrade to Windows7, forcing a re install of 16.5 or upgrade to 16.6. Both paths were chosen, along with a hold out on XP running 16.5,...
View Articlepnoise noise separation & pac analysis contradicitng
Hi,I am simulating a circuit with nonlinearity, time variance & frequency translation. The output Vout=(V1) + (V2) .I used pnoise+noise separation to find transfer function from drain noise of M1...
View Articleconverting bus pin to non bus in Layout L
Hi,I am having trouble converting a bus pin to a non-bus pin using Layout L. I managed to reproduce the error I am seeing in a junk layout following these steps: draw a pin named junk_pin<0> and...
View ArticleHow to create a nested pcell but still maintain the strecth handle capacility?
Hi, How to create a nested pcell but still maintain the strecth handle capacility?I'm developing a nested pcell which instantaite a native transistor pcell, and add some routing on top of it. But, this...
View ArticleUsing RC to estimate leakage & dynamic power from different synthesis runs
We are planning to using RC with a TCF (toggle) file to estimate leakage & dynamic power from different synthesis runs.Yes, in a sense we are trying to get power estimates from many "what if...
View ArticleTo categorize the cell-views in a Library
Dear All,I have created many cells in a library (IC5141).I actually want them to put in several categories so that it will be easier for finding each cells.Currently, in Library Manager for my Library...
View ArticleNon-volatile files in Cadence
Hi, I want to use Subversion (Revision Control System) with Cadence, in particular for analog design (ADE).Which files should I check in (i.e., which files contain data and not temporary/volatile...
View ArticleHow to append a label on a rectangle created by dbCreateRect()
Hi experts, Using dbCreateLabel() could only create the label in cellview but not appended on a object (e.g. rectangle). Is there any way that I could append a label on a rectangle (i.e. as a...
View ArticleRedefine a library from SKILL?
I work in CAD support, so I find myself doing this a lot in cds.lib:UNDEFINE someLibDEFINE someLib /some/users/workarea/someLibI was wondering if this can be done from SKILL without actually editing...
View ArticleHow to match length of a differential Pair
Hi,I want to match the total length of my Diff pairs - all should be in a specified range in comparison to each other. I have defined an Electrical rule set and assigned some min/max margins. Then I...
View ArticleCan't connect to via of the same net
Hi,When I try to connect to a fanout via in my BGA I see that I can't!. Very strange? I tried to start from BGA side and connect it to my IC pin but results were the same. I am very short of time so I...
View ArticleNew pin number found instead of Old one!.
Hi,I see a strange behavior in Allegro PCB 16.6. I swap a location - D17 pin in SP6 FGG484 package with AA2 - in Allegro PCB and apply back annotation. Then I want to find the D17 pin in schematic and...
View ArticleE- (SPMHAC-31): The element from which you are connecting is not on the...
I am wondering if below error is a bug from Allegro 16.6 or there is something wrong with my settings.E- (SPMHAC-31): The element from which you are connecting is not on the subclass. Use "Add...
View ArticleHELP: Warnings on setting technology library name
Hello,I am writing a short code to set the technology library property of the new library same as the old libraray. When I use the function:techSetTechLibName(ddGetObj(newLib) oldLib ) p, li {...
View ArticleDXF output from Orcad Capture
Does DXF output forn Capture work on 16.5 We tried it and all we get is an error message statingdxf output is not available at this time, what exactly does that mean, the menu picks are there but...
View ArticleDXF output from Capture
Does anybody know if DXF output from Capture works at all in v16.5 or 16.6?We have tried in v16.5 with no luck error message tells us DXF is not available at this time.Does that mean its functionality...
View Articlerelxpert vth degradation
Hi All,I tried the example provided by Cadence with Relxpert and the output .bo0 file showed the vth degradation. The manual did not mention the units. Is it milli volts? Also, I tried the tool with a...
View ArticlePVS LVS
Hi all, I did a digital design and when I want to do an LVS it says that the FEED cells (for example: FEED1LJI3V) are in the schematic but not in layout. If I want to filter them with blackbox I got an...
View ArticleRegarding section statistics for Monte Carlo
Hello everyone, I'm currently trying to create scs library for Monte Carlo and I'm quite sure that I'm doing everything correctly but it is giving me an error that I just cannot figure out why. I...
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