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Relative Propagation Delay Electrical constraint sets.
I am trying to figure out how to use the ECS in relative propagation delay in the main ECS workbook. I can create an ECS and then an ECSM but the manual is very confusing . I also have a board that...
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32 bit LMtools for 64bit 17.2 sw
My server is 32 bit OS and the client wants to use 17.2 software. 17.2 support only 64bit.Can we link 32bit server_lmtools with 64bit client_SPB17.2?
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How to find out wrongly connected Port in hierarchy Schematics?
Hi there,Recently we found a stupid error in a rather complcated circuits design. As follwing picture shows, two power ports MGTAVCC and MGTAVTT are wrongly connected to one another. But commmon DRC...
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Can't open older version of OrCAD after installing new LITE version
Hello,I have just installed the new 17.2 LITE version of OrCAD. This works fine but when i want to create a design i tried going back to OrCAD 16.6 and i get the errors: 'The program can't start...
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Converting projects between old and new library
Hi all,Due to some infrastructure changes, we have the opportunity to change our library. During the years since we first switched to Cadence we've found that our library could be improved in a number...
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Exclude pins of differential pairs?
Hi,I'm using Allegro 16.3 with the -L performance option.I have a CAN daisy-chained diff pair that has a header connector and optional termination components connected to the diff pair traces.These are...
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How to make the ground plane darker.
I just placed a ground plane, but when I print it out this is not dark enough. I need it as dark as a padstack.
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Schematic back annotate error?
Hi,I am using cadence 16.0 facing a trouble on back annotating the schematic, it gives the following error{ Using PSTWRITER 16.0.0 s001Aug-07-2017 at 20:02:13 }Starting the Swp file dumping process...
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Error when trying to Rename RefDes
Hi, I am using OrCAD PCB Designer V17.2.018. When I try to Manufacture > Auto Rename RefDes > Rename..., using Default Grid, Rename all components checked I get:Auto rename of reference...
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Mirror printing and copy
I need to print out the top layer in mirror plot orientation, but when I do it some padstacks are gone. If I print out the same plot in normal orientation the padstacks are there. How can I solve...
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Pspice simulation error
Hi,Run the latest hotfix 17.2\Hotfix_024 getting this error belowAny ideas, path exist. its not read only.
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How to connect mechanical pins with connector pins
Hi all.I purchased a few parts and I want to build a few test fixtures for them. Some of them are SMD, others are thru-hole. I finished all circuits expect the location of parts. For SMD I want to...
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Components placing issue in allegro 16.2?
I have place some components into the board manually and rest are unplaced.Now I have stared to route the traces.After routing some tracks.I need to place some more components into the board.At this...
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How to create part with multiple layers?
Hello,Fairly complicated post but I can hopefully explain it:Right, I want to design a part which is a SMD part which has pads on two layers; in this case top and bottom, connected with vias. This is...
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Making component references globally unique across multiple schematics
Hello,I am adding to an existing project in Allegro Design Entry with multiple schematics, and I want to ensure that component references (locations) are globally unique, i.e. that no two components in...
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customize pad shape(Semi-circle)
how can create a Semi circle pad stack in allegro 16.2?
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Exporting Gerber layers as DXF files
This there a simple way to export all of the Gerber layers as DXF files? Using the Export -> MCAD -> DXF for each layer is extremely tedious.
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menu change between v16 and v 17
1. Why do you have to keep rearranging the menu and menu items in Allegro?2. Where the f is the "Create Module" in v.17? It was under Tools in v.16.3. Who is the genius behind this chance?
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Custom shape etch - How to attach to pins
Hello,I'm trying to copy this design:And I'm wondering what is the best way to go about creating the highlighted shape that is the trace etch. Here is my attempt:Obviously, my attempt is very basic but...
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Distributed Cadence site repo for multiple locations (AWS, Azure, etc.)
We're interested in going to a distributed model where all Cadence users in different geographic locations can share the same virtual network path. This would be easier on maintenance as we would have...
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