Hi
I got a legacy SKILL code for pcell from the company and need to modify it. Could someone explain to me the purpose of using dbReplacProp shown below ? I cannot find the info about it in Cadence documentation. Could I remove these two lines from pcDefinePCEll definition.
pcDefinePCell(list(ddGetObj(globaldata->library_name) "testa" "layout")
...
dbReplaceProp(pcCellView "viewSubType" "string" "maskLayoutParamCell")
dbReplaceProp(pcCellView "function" "string" "transistor")
)
Thanks,
MC
Hi,
We're working on a product in a technology which gets shrunk down. What we draw in the layout in a layout editor window, will be shrunk down by 0.855. So a drawn dimension of 1um (1000nm) becomes 0.855um (855nm). Currently we're in the floorplanning phase and in discussions about the final die-size. So every time I measure the new die-size (after more and more blocks report a more realistic area), I have to remember to apply this scaling factor before I report any new values.
With the bindkey <k> the default ruler can be used to measure, and this ruler measures drawn dimensions. I'd like to have somehting like <shift.><k> to give me a ruler which applies the scaling factor to the measurement. Preferably in a different collor to be able to destinguish from one another.
Is this possible? Can I define my own ruler?
Thank you in advance.
With kind regards,
Sjoerd
Hi,
I would like to get the name of all the instances in a given schematic. It would be even better if I could narrow down the list to MOSFETs only.
Thanks in advance.
Best regards,
Pedro
Hi,
I am hoping to have all layout cellviews open with draw level 0, so as to prevent any unnecessary delay from drawing large cellviews with resolution set to high.
Also, would it be possible to automatically set the resolution detail level to low at a certain view distance prior to drawing? This is as sometimes when using resolution of very high when zoomed in, when I mistakenly do a full fit at top level with all layers visible the program hangs as it tries to draw everything.
Finally, when this happens, Ctrl C does not always seem to work to rescue the session. Is there anything else that can be done here to pull the session back?
I am wondering can any of the above be implemented in skill, and if so could anyone help me with how to do so?
Thanks,
Brian.
Dear All,
I want to pass a variable for wave expression in plot() .
The below command gives the wave name as waveName
plot(drCreateWaveform(drCreateVec('double xList) drCreateVec('double yList)) ?expr '("waveName") )
If I want to pass a variable to ?expr '(" "), how it can be done ?
Kind Regards,
Dear All,
I am trying to append the waveforms created by drCreateWaveform() in a for loop.
My code looks like;-
A=list()
for( ITR 1 2
..................
WAVE=drCreateWaveform(drCreateVec('double xList) drCreateVec('double yList))
A=append1(A,WAVE)
)
But A is having only one element in the list after the end of the loop.
Can anybody please help me in this issue
Greetings!
After some search on the topic, I decided to start a new post for this question. Much appreciate your help in advance.
I notice when using leHiCopy() to copy clone groups from one layout view to another layout view, the synchronous information is lost..
Is there a way to preserve such info?
If not, I was about to save the info first, then reconstruct it after the copy happens, assuming predictability in how Virtuoso renames figure groups.
Regards,
Duo
Dear All,
Are there any SKILL commands for setting ViVA a) windowbackground color and b) the font size of the axis Labels and c) axis tic values ?
Kind Regards,
Hi,
Please let me know if we have a string field in SKILL GUI that stores the history of inputs.
Possibly, it may have a drop down arrow button, which when clicked, will give all the previous inputs of the string field.
Thanks,
Mallikarjun
Dear All,
We can directly give the filename in vsource when it is as PWL source type.
Is there a way we can pass the file name as a variable to vsource as PWL type ?
I need to change the file name for different corners.
Hi..
I want to know the properties of an schematic instance when we query the instance using skill.
For example width of the instance or number of legs or name of the instance.
I am opening the schematic by its library,and cell name in schematic view in db mode
test = dbOpenCellViewByType("library" "cellname" "view")
test~>instances
by this i am getting dbids of all instances.
so what to do next to get select each instance and get the properties of that
Thanks in advance for the solution
Hi.I want to generate a file(xlsx) which contains the data of a CBB,like all its hierarchies with their properties
for example consider a block named "A" which contains a inverter and 2 transistors
I need the name of the transistors,Cell name where they are present,width, number of legs to be recorded.
and it should list the details of the transistors present in the inverter used in the block "A"
I would like to add a toolbar icon that when selected toggles gravity on and off. I have this working through the customization form. As an enhancement I would like the ICON to indicate if gravity is enabled or not instead of looking at the log window to determine this. How would one write a callback such that it updates the icon used based on the state of whether gravity is enabled or not?
Thanks,
Micky Harris
Hi everyone,
I am struggling with the following functions:
ciGenerateBestFitPattern
ciGenerateCascodedCurrentMirrorPattern
ciGenerateCurrentMirrorPattern
ciGenerateDiffPairPattern
ciGenerateLargeMfactorPattern
I am trying to generate modgen / matrix patterns for a given list of instances and dimensions (rows x columns)
Here is the little code I wrote to try the functions:
(inScheme (let ((table `( (PassiveDeviceArray ,ciGenerateBestFitPattern) (CascodedCurrentMirror ,ciGenerateCascodedCurrentMirrorPattern) (CurrentMirror ,ciGenerateCurrentMirrorPattern) (DiffPair ,ciGenerateDiffPairPattern) (LargeMfactor ,ciGenerateLargeMfactorPattern)))) (defun getSelectedInstances nil "Return selected instances" (setof obj (geGetSelectedSet) (equal "inst" (get obj 'objType)))) (defun instancesToDevices (instances) "Return the list of devices from schematic INSTANCES to be used in ciCollectDeviceInfo" (foreach mapcar inst instances (list (get inst 'name) 'inst))) (defglobalfun abGeneratePattern (structType @optional (instances (getSelectedInstances))) "Generate STRUCTTYPE pattern associated to schematic INSTANCES" (letseq ((win (getCurrentWindow)) (cache (ciGetCellView ?window win)) (devices (instancesToDevices instances)) (devInfo (ciCollectDeviceInfo cache devices)) (args (ciGetStructArgs structType))) ;; Call ci pattern generation function according to struct type ((cadr (assoc structType table)) devInfo args))) (defglobalfun abGeneratePatterns (@optional (instances (getSelectedInstances))) "Try to generate all patterns in table for INSTANCES" (foreach mapcan structType (mapcar car table) (let ((pattern (errset (abGeneratePattern structType instances)))) (unless pattern (warn "%s %A" structType errset.errset)) pattern))) );let);inScheme
I tried (abGeneratePatterns) while selecting a simple differential pair in a schematic, it get the following warnings:
*WARNING* CascodedCurrentMirror ("symbolToString" 0 t nil ("*Error* symbolToString: argument #1 should be a symbol (type template = \"s\")" nil))
*WARNING* CurrentMirror ("symbolToString" 0 t nil ("*Error* symbolToString: argument #1 should be a symbol (type template = \"s\")" nil))
*WARNING* LargeMfactor ("ciExtractRowNumber" 0 t nil ("*Error* ciExtractRowNumber: argument #1 should be a string (type template = \"tt\")" nil))
I get patterns for the other structTypes but I cannot specify the dimensions :/
If somebody has an idea or can provide me with better documentation about those functions I'd be very happy
Cheers,
Aurel
The track pattern will be loaded by default in virtuoso. I am writing a script to place metals over the selected instances based on the track pattern. Say I want to place a metal M1 of width 0.04 over the instance. i will check the M1 track spacing and place metal on the track to make it technology independent. But I am not able to figure out how to retrieve track pattern information through skill command.
I tried following:
tech_id=ciGetTechFile( )
tech_id~>widthSpacingSnapPatternDefs~>??
But I was not able to find the what is the track pich for say M1, M2 etc.
I gone through .tf file from where track pattern is loaded, But I was not able to understand what to grep from it as I am not familiar with .tf files and track patterns.
So what is the best way and how to get track pattern information for metals.
Thanks,
Amshak
Hi,
Do we have any command to extract the width space from an active track pattern set for a particular layout view using SKILL ? I am looking to draw shape/path using the width space information from the track pattern .
regards,
Ajith
Hi all,
I have my ocean script where I execute two different tests as following:
Then from CIW I execute the following commands in order to plot the waveforms:
in_sig=v("/I0/SN" ?result `tran)
awvPlotWaveform(newWindow() list(in_sig) ?expr list("SN" ) )
But.. this only plot the results from one test. Is it possible, with a SKILL command, select which test to plot? or simply plot all the tests?
Best,
EJ
HI,
After spending some time reading documentation and going through options in a Layout (XL) editor, I couldn't find an option to turn-on, what I would call, cross-probing. What I mean with that: when selecting a wire/path/polygon with net information, that the same net in the schematic view (which is already open) is highlighted. When in LayoutXL mode in a layout editor, if you select an instance, the same instance in schematic is highlighted/selected. I would like to have the same functionality for nets.
Is this possible by simply enabling an option (which I have completely missed)?
If this is not a build-in feature, I think it wouldn't be too difficult to write some SKILL code that does this:
This could be made in such a way that when selecting multiple paths/wires/polygons, multiple nets are highlighted in the schematic.
Would this be possible, or does anyone already have somehting similar to this?
Thanks in advance.
Kind regards,
Sjoerd
ps:
We are currently using a custom procedure which is triggerd by a single left mouse button click, it checks whether or not a path/wire/polygon is selected, and then takes the LPP of that object and sets it to the entry layer in the LSW. This is the code to do that:
community.cadence.com/.../1300.SCLLeMouseSingleSelectPt.il.txt
community.cadence.com/.../4113.SCLLeSetLSWEntryLayerByShape.il.txt
Before using, remove the .txt file extension.
Hi all,
I have a simulation testbench in ADEXL which has multiple corners to run. I want to use one of corner output expression in other runs.
To give couple example for usage: I will run ss, ff and tt corners in the same simulation in parallel and scale all output currents to tt value. Or I will run schematic based netlist and dspf based post-simulation netlist in parallel. Then, I want to compare the output expression between these two for verification. This can be scalable to over PVT as well.
I am not sure if this is possible in the same simulation since simulation finish time can be different. I am open to other ways to do these as well.
Thanks
yayla
Version Info:
ICADV12.3 64b 500.21
spectre -W =>
Tool 'cadenceMMSIM' Current project version '16.10.479'
sub-version 16.1.0.479.isr9
Hi,
How do I do the following:
Using the procedure dbGetOpenCellViews() you get the list of all open cell-views in virtual memory. This lists both cell-views open in an editor window (i.e. opened through the librrary manager) and cell-views that are not opened in an editor window (i.e. opened using dbOpenCellViewByType()) I'd like to filter all cell-views which are opened in an editor window. So as an example:
I have two open cell-views: 1 = libA/cell1/view in a window and libB/cell2/view in memory only. The filetered list should only contain the database ID of libA/cell1/view.
When you want to close data (CIW->File->Close Data) it presents a table listing all open cell-views. Ini this table, the window ID is shown (in the "status" column) if it is in an editor window. This is what I would like to know.
I could also specificly look for a particular lib/cell/view to see if it is opened or not by using procedure dbFindOpenCellView(), but this will only return the cell-view ID, not the windowID.
So the short question: how do I find the window ID from a cell-view ID?
Thanks in advance.
Kind regards,
Sjoerd