Schematic returns to most upper level when click Main Form or Transient Signal
I do transient simulation. I want to plot signals of inner level from Main Form or Transient Signal. However, when I click Main Form or Transient Signal the schematic always returns to the most upper...
View Articlehow to setup and run multiple STB simulation in a single state
hi there, i had a question about STB simulation. Background is:-- I had a switch cap integrator. -- the amplifier in integrator is gain boosted-- so for STB simulation, I need to check "main loop",...
View ArticleUsing multiple dynamic parameters when one is a variable
Greetings,I'm running a simulation that requires me to raise the temperature midway through the simulation. It is a precision circuit and for some reason the numerical noise gets quite bad when raising...
View ArticleMaking schematic from layout
Hello everyone,for some reason I just have the layout of every device at my disposal. I would like to realize the schematic from the layout so that later I can do the post layout simulation. I know...
View Articledefine specs in adexl in text editor or batch mode? or batch tool for...
I have something like 100 lines in ade-xl that I want to define its specs and all specs are same. I really don't want to click them one by one for 100 times. I know how to do that in text files with...
View Article[Virtuoso]Can I get SPICE model parameters of MOSFETs in library?
Hi all, I am trying to get the SPICE model parameters of the MOSFET I am using. From property dialogue of the device, I can get some like the geometries of the device( W, L, fingers, AD,AS, PD,PS),...
View ArticleHow to check simulation time of block ?
Hi,I'm trying to reduce simulation time by changing schematic to behavior model. Spectre or AMS is available for me.Is there anyway to list up CPU time breakdown of blocks after simulation completes ?I...
View ArticleTimestamp warning when using ADE Assembler (Maestro)
Hi,we get warnings since we corrected our server time to the correct timezone:tar: ./.designVariables: time stamp 2019-04-07 23:02:13 is 13.484168035 s in the futuretar: ./.tmiParams: time stamp...
View Article寄生参数提取之后进行spectre仿真出错
我使用的是CDS5141,使用diva进行版图寄生参数提取之后,使用ADE进行spectre仿真,但是出现的问题是选不中底层电路的金属线。想了另一个办法是将input.scs文件中某个node的电压变化情况提取出来绘制波形,请问我具体的操作是怎样的
View ArticleVirtuoso crashing
HelloCadence Virtuoso has been crashing on me multiple times per day. Two example crash reports are attached. My version information is: "@(#)$CDS: virtuoso version 6.1.7-64b 12/01/2016 05:43...
View ArticleADE Assembler export to Matlab issues
dear forum members,I would appreciate it if anyone could help me with the following problem. I am trying to export s-parameters, noise-parameters and some DC values from an amplifier design as function...
View ArticleVSR multi-level auto routing
Hi all, I'm using IC617 and using VSR auto routing for my layout.I have one block on the top level that have some other blocks.My script work well when it is used with one block at a time.But, Is there...
View ArticleIssue with multiple QRC runs
Hello ,I am trying to write a script to give multiple Quantus QRC runs.So I have done something like :for file in <list_of_command_files> qrc -cmd file -log_file <file>.log &Now the...
View ArticlePegasus LVS GUI to Load last selected Rule Set
When start the Pegasus LVS GUI, is there a way to configure it to load the last used Rule Set?I have multiple rule sets defined in techRuleSets, but GUI always load the "default" Rule Set on start...
View Articlesquare pin in schematic
I recently found some square pins in schematic. They have no reference to pin master in "basic" library. And I can't create this kind of pin via "create pin" command. It really looks weird to me.What...
View Articlethe color of instance label in symbol editor
Recently I found some instance labels were in color white. But if I create a new one, the color is yellow. And I haven't change system LPP. In default, the instance label uses color yellow. If I...
View Articlespectre.out file in psf directory
Hi,I have a script (external to Cadence) that needs to run Spectre multiple times, and manipulates the resulting files at every run. For my understanding, the following code can launch spectre from the...
View ArticlePrint spectre parameters
In spectre model files there are parameters in the form:parameters+ x = y+ a = b+ m = nIs there a way of printing out the value of these parameters?
View ArticleAccuracy of Glitches Observed in Transient Simulation
Hi,I am performing a transient simulation on standard cell based design in transistor level using spectre (IC6.1.7). At the moment I use APS with ++aps, liberal settings without post...
View Articlemaximum run numbers for MC sim
Hi, in order to check startup condition, i need to run MC runs as many as possible. It seems there is a limit: 10k runs for one corner in Cadence. E.g., even i set 100k runs in MC setting window, The...
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