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Bindkey for raising CIW problem

April 25, 2018, 2:41 am
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Hello,

First of all, I am quite new to programming in SKILL. I've tried to raise the CIW window by using a bindkey F3 by using this code:

procedure(raiseCommandInterpreter()

    applicationList = list("Schematics" "Layout" "Artist" "adexl")

    foreach(application applicationList

        hiSetBindKey(application "<Key>F3" "hiRaiseWindow(window(1))")

       printf("Bindkey <F3> set for raising CIW window for %s. \n" application)

    )

)

The bindkey works in schematic and layout, however, in ADE(X)L is does not raise the window... Is there something I missed?

Kind regards,

Nicolas




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Virtuoso, monte carlo simulation to measure fervency of ring oscillator

April 26, 2018, 7:12 am
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Hi

I have a problem, i can not measure the frequency of ring oscillator in monte calro simulation for a ring oscillator,

if i use the freq function in the calculator, the simulation not complete and give an errors.

Amin

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how to direct Virtuoso Visualization and Analysis XL to display all signals in single window/Strip?

April 26, 2018, 7:24 am
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hello exports,

I had a simple testcase setup in ADE-L with signals to be plotted for a "tran" simulation. when all signals to be plot are analog, they all go to a single waveform window which is fine. 

but after I convert a few signals as digital by a2d function in ADE-L and re-run the simulation, the signals are now plotted into multiple subwindows. 

from ADE-L output setup, I don't see any control to direct the signals to be plotted all together or in separated waveform windows. Even I save the setup as Ocean Script, I don't see any directing to multiple waveform windows either. 

how can this waveform display windows be controlled to plot always in single plot instead I have manually drag them together everytime? 

thanks,

David

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display signals in a new strip from Ocean script

April 30, 2018, 9:22 am
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hello exports,

I noticed a few discussions for similar case for ADE ( https://community.cadence.com/cadence_technology_forums/f/custom-ic-design/38661/is-there-any-way-to-add-a-new-empty-strip-on-viva ), such environmental setting works perfect for ADE as bellow. but it doesn't seem to work for Ocean script plotting. 

envSetVal("viva.rectGraph" "stripChartOn" 'string "true")

so in Ocean, for now I have to do following to explicitly manipulate the numbers to control which strip the signal(s) going. can we do "?strip new" kind command so it knows to always create new strip to display?

plot( v("/aaa") ?strip 2)
plot( v("/bbb") )
plot( v("/ccc") ?strip 3)

thanks,

David

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Vref Opamp Simulation

May 1, 2018, 7:13 am
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Hi everyone,

I am simulating inverse voltage using opamp with single Voltage. to not use negative input voltage.

I use opamp model in adhLib. But circuit cannot cut negative input voltage.

Can you explain for me how to fix this?

Thank you.

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Running parallel processes in SKILL code

May 1, 2018, 10:49 am
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Hi,

I am writing an oceanXL script to launch multiple runs in parallel. While I set each run with ocnxlRun( ?waitUntilDone nil) in the loop to set up the circuit, after all runs are defined and launched I then wait for the runs to end with ocnxlWaitUntilDone('All). 

In the mean time, there could be a lot of runs and potentially taking a few days to finish. I want to be able to monitor a few finished simulation results to determine whether I want to continue with all simulations. So here in the attached eample I inserted a block of code to look for the results directory. The problem is, the while loop seems to block the execution of the ocnxlRun's and will not produce any results until I exit the while loop.

Obviously I can't put the monitor block after the ocnxlWaitUntilDone('All) command since it will wait for all to finish and defeat the purpose. My question is, can I launch a parallel process to monitor the progress of the simulations?

Thanks in advance for any help.

Ed

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need to expand the bus in schematic for routing plan

May 2, 2018, 7:31 am
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Hello,

I am trying to report the buses in the schematic to have routing plan in layout . When i am reporting them i want to be able to expand the bus.

For example.

 

If i have  bus TRIM<2:0>  i want to report  individual nets  as   TRIM<2> , TRIM<1> ,TRIM<0> . Is there any function available to do this ?

  

Thanks,

Raghu

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plot Text content in waveform

May 2, 2018, 9:22 am
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hello export,

is there a way to manipulate the ViVa waveform plotting so that it could display some text content in the waveform, e.g., telling the phase / step / function at specific time duration?

thanks,

David

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selecting nets in schematics given netname

May 3, 2018, 6:23 am
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Hi ,

I have list with netnames of schematic. I need to select the net  in schematic given netname . Is there any function available to do this ?

Note: I  know about probing a net using geAddNetProbe() . Instead of this i need to select a net given netname

Thanks,

Raghu

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print value as binary formated

May 3, 2018, 7:10 am
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hello export,

maybe impossible but just trying, from SKLANGREF, the printf could only do %d, %o %x for integer value, is there a way to print the integer as Binary formatted? 

thanks,

David

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How to find the Layer# and Purpose# that are not reserved in the technology file using SKILL ?

May 4, 2018, 2:52 am
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Hi All,
How to get the all the Layer# and Purpose# that are not reserved in the technology file using SKILL ?
Because I want to add new layers and purpose in my technology file by using SKILL,
I have a difficulty in finding the available Layer# and Purpose# manually in my technology file.
Please help.

Thanks in advance.
Best regards,
Marben

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Converting Waveform to list

May 4, 2018, 7:20 am
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Hi, 

I am a SKILL newbie and I need to covert a waveform to a list, but I can't.

I tried to use "abWaveToList" procedure, as read in other posts, but it doesn't seem to work. I've written this code:

res = abWaveToList(Wave ?transpose t)

and the content of res variable is:


I guess the problem isn't due to the Waveform variable, because I can see it using plot fuction. I'm using IC6.1.7-64b.500.15.

I really appreciate all the help I can get.

Regards,
Savino

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pulldown menu in Assembler & Explorer

May 5, 2018, 1:55 pm
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Hi All,

I would like to add my own custom pulldown menu in Assembler and Explorer. I have written the procedures and tested they work fine, i just need them to automatically load.

- Background - 

Ive managed to get the following working, but if i put my procedure call on the third argument it doesn't work. I thought the third argument was the menu trigger.

deRegUserTriggers("explorer" nil nil 'MyExplorerPDmenu)

Is this correct ? Should i be using deRegUserTriggers method or is there an equivalent to the below ?

envSetVal("asimenv.startup" "sessInitTrigFunc" 'string "init_session")
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Hover over text in SKILL form

May 7, 2018, 10:51 am
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Hi,

Is it possible to create Hover over text for fields in the form using SKILL ? 

I have a skill form which have multiple fields. Many users come to me and ask what each field does. I want to create easiest way to help them describe what each field means. 

So if someone hover over the mouse on the field, then some small popup comes up which shows the description of the usage of the field. is it possible with skill ?

Greatly appreciate you help.

Thanks

Sanket

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Using Skill for Naming Large Numbers of Pins

May 8, 2018, 11:18 am
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Hello,

I am interested in learning how I could write a SKILL script to create a large numbers of pins to be used in a 1 KB 6t SRAM chip. These pins would then need to be individually named and connected to the correct instance pins. I currently have a single SRAM cell (schematic, layout, DRC and LVS completed), but expanding this to 1 KB has proven a challenge because I do not know how to create, connect, and correctly name the very large number of pins that would be necessary.

Is there a way to automate this process using SKILL?

Thank you

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how to append a constraint with cstCreateConstraint

May 8, 2018, 11:30 am
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Hi,

I want to append a constraint "minOppExtension" in my techfile. So I'm using cstCreateConstraint to do it.

techID = techGetTechFile(ddGetObj("Tech"))

cutClass_CG=cstFindConstraintGroupIn(techID "group1")

cstCreateConstraint(cutClass_CG "minOppExtension" list("M2" "V1") list(0.0 0.0) list('cutClass list(0.04 0.04)) t t)

it return nil

What is wrong with my code

it should be like that in the techfile

constraintGroups(


 ;( group [override] [definition] [operator] )
 ;( ----- ---------- ------------ ---------- )
  ( "group1" nil    nil    'and

    orderedSpacings(
     ( minOppExtension            "M2" "V1"  'cutClass  (0.04 0.04) (0.0 0.0))
    ) ;orderedSpacings
  ) ;group1
) ;constraintGroups

Thanks

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SKILL function for getting point ID (or netlist directory) in ADE XL

May 9, 2018, 3:54 pm
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I am writing custom SKILL function to process certain file located inside of netlist directory, in IC6.1.7-64b.

This file is generated by an internally developed tool of which source code I don't have access to.

I am calling my custom function in ADE XL output expression. This function needs to read the file, process data, and show result for each simulation point in ADE XL result window.

Let's say variables are defined as following.

ssName=axlGetWindowSession()
sdName=axlGetMainSetupDB(ssName)
hstName=axlGetHistoryName(axlGetCurrentHistory(ssName))
hstEntry=axlGetHistoryEntry(sdName hstName)
pCornerName=axlGetCornerNameForCurrentPointInRun()

When I run axlGetPointNetlistDir(hstEntry "test") when my test name is "test", I will get something like this.

"[some directory hierarchy]/adexl/results/data/Interactive.0/psf/test/netlist"

However I need to know the netlist directory of each point where each file is saved. Desired result looks something like this.

"[some directory hierarchy]/adexl/results/data/Interactive.0/1/test/netlist"

 

If I know point ID and run 

axlGetHistoryEntry(sdName hstName ?cornerName pCornerName ?designPointId [point ID value])

I will be able to get the netlist directory I want.

Does anyone know if there is any function that returns point ID, or returns netlist directory of each simulation point?

Thank you.

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Spectre skipping points

May 10, 2018, 7:37 am
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Hello exports,

I guess I might need some parameters to Spectre to avoid skipping value points. By older version it gives good staircased signal (from VerilogA) but in newer version it misses several stairs. Any clue what I should do to make the simulator not skipping?

the good staircase signal in older Spectre simulator:

the bad staircase signal with several stairs missed in newer Spectre simulator:

thanks,

David

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ADEL - skill : adding signals on the list of outputs to be plot/saved

May 11, 2018, 12:52 am
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Hi,

In ADEL I want to modify the list of outputs to be plot/saved using skill.

Is there any skill procedure to to this?

Assume that the simulator is spectre, and the proper session is open in ADEL.

Thank you,

Marcel

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Automatically generating pins from nets problem

May 12, 2018, 8:07 am
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Hello everyone,

I wanted to write a SKILL code that generates automatically your pins depending on the selected nets and the place where you clicked. However, the latter one does not work and the pins get generated somewhere else in the schematic... Underneath you can find the important part of my code where the problem is situated:

procedure(schAutoCreatePins(ok theListBox)

let( (xcoord ycoord inputCVId)

    xcoord = xCoord(hiGetCommandPoint())

    ycoord = yCoord(hiGetCommandPoint())

    inputCVId = dbOpenCellViewByType("basic" "iopin" "symbol" "" 'r)

    if( ok then printf("Creation of pins: \n")

       foreach(choice theListBox->value

       sprintf(namePin "%s" choice)

       schCreatePin(geGetEditCellView() inputCVId namePin "inputOutput" nil xcoord:ycoord "R0")

       ycoord = ycoord + 0.25

       printf("Pin %s\n" namePin)

       ) ; foreach

    else printf("Cancelled automated pins creation.")

    ) ; if

  )

) ; procedure


Kind Regards,

Nicolas

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