Spectre distributed simulation using ssh
I have a netlist (with parasitics extracted using calibre) for an ADC and I need to run a long transient simulation. In order to reduce the simulation time, I am trying to run a distributed simulation...
View ArticleWhich is the real additional power induced by current_region in Voltus?
ello, I'm using current_region to add additional current in a few areas of the circuit. Consider the two following scenarios: Scenario 1: vdd_gnd_worst.iv (with current regions) current_region_10...
View ArticleRE: Multiple ground ties
You can add a net_short property to a pin, via or static shape that has a value of netname1:netname2 and so on. Which will remove the DRC. There's an app note orcad.co.uk/.../Netshort_Definition.pdf...
View ArticleRE: Capture UI takes a long time to refresh
There is an issue with the Microsoft Fall Creators update. Try updating your Windows again as Microsoft have issued a couple of fixes KB4054517 and KB4051963 which should help. There may be more...
View ArticleRE: Programmable version of leHiCreateBus
I'm mainly just looking to create parallel conductors so I can make a pcell for a spiral transformer. The bus option means I only have to generate a single set of coordinates which saves me time....
View ArticleRE: ADE XL no jobs get started
Can you show what happens if you run "virtuoso -nograph" ? Sometimes there are issues with missing fonts needed when you run in no graph mode (it's a little odd that you need fonts when you can't see...
View ArticleBlue LEDs, Nobel Prizes, and IEDM Keynote
At IEDM last week, for the first time, there was a second plenary session (awards and keynotes) on Wednesday. presented by Nobel Laureate Hiroshi Amano, one of the inventors of the high intensity blue...
View ArticleCapture CIS explorer, footprint not shown
Hi. I am using Cadence 16.6 Capture CIS... I have assigned footprint in the database, which is not shown in the CIS explorer. Placing the part in the schematic AND "show footprint" works great... If I...
View ArticleConstraint manager--->DRC external rule Violation
Hi sir, My project report lots of DRC about external rule. I do not set any rule about external and I do not familiar with it. I search it in HELP Document but i can not fix it. How can i fix it or any...
View ArticleRE: Unable to open OrCAD Panel Editor 17.2
It sounds like the GUI has gotten into some odd state. I would recommend deleting the registry key to reset the defaults. Try the following: Make sure Panel Editor and Dashboard are not running. Run...
View ArticleRE: Capture CIS explorer, footprint not shown
The footprints might be an older version so you can either try running DBDoctor externally, browse for a filename.dra then change it to *,dra and run DBDoctor on the symbols folder, repeat for psm,...
View ArticleRE: Spectre distributed simulation using ssh
I tried an example using +dp=ssh and it worked fine - didn't hit this error (I was using multiple hosts, and with or without +mt=8). You didn't give any info on the spectre version being used, but...
View ArticleRE: Constraint manager--->DRC external rule Violation
External DRC's can be added via a skill program or external third party software. There is a Cadence solution on how to remove them...
View ArticlePOwer routing : Top level Block PG pin routing
Hello, I'm using hierarchical methodology. I did block place and route. I generated lef abstract using : write_lef_abstract ./RESULTS/${DESIGN_NAME}_abstract.lef -stripePin -PGPinLayers {2 8}...
View ArticleCreate a schematic with a spreadsheet?
I need about 15 or 20 very simple PCBs. They are comprised of two to four 50-100 pin connectors. I am creating them from an existing excel spreadsheet listing connector numbers and pins. Is it possible...
View ArticleRE: Multiple ground ties
Hi Steve, thanks for answering my question. So I assume you can't add this property to a dynamic shape. I have a dynamic copper pour on an inner 1 layer for the whole board and three different dynamic...
View ArticleRE: Equal Spacing Spread Command
Has anything changed in the last few years? With a large number of cline segs running parallel to each other, is there a way to distribute traces between and outer set of cline segs? The feature below...
View ArticleA Cadence Carol, Stave III, Part II
This is a continuation of A Cadence Carol . Be sure to read the previous installments! Stave I: Moore’s Ghost, Part I and Part II Stave II: The First of the Three Spirits, Part I and Part II Stave III:...
View ArticleRE: Create a schematic with a spreadsheet?
There is one trick that I can think of. In the library editor build a new part from spreadsheet. You can cut and paste columns directly from Excel. Set the pin type to "Power" and it will allow Capture...
View ArticleVirtuosity: From Hatchlings to Fledglings to a Flock of Birds Blogging Together
“The reason birds can fly and we can't is simply because they have perfect faith, for to have faith is to have wings.” ― J.M. Barrie, The Little White Bird When a few of us in the Cadence CAS Technical...
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