Cadence Custom IC Skill Forum

Using for loop inside hiCreateAppForm fields

Sandeep4386 — Mon, 20 May 2013 23:32:50 GMT

Hi,

I am encountering an error while using a for loop inside hiCreateAppForm fields. Here is the error message:

*Error* hiCreateAppForm: not all fields have 2D attributes specified, and/or illegal attribute values

However if I comment out the for loop then error goes away.

hiCreateAppForm(

?name 'Form

?formTitle "test form"

?fields

list(

list(label 0:0 600:30 200)

list(all 10:30 600:30 20)

list(none 10:60 600:30 20)

list(cellviewFrame 0:90 600:30 200)

for(i 1 count

list(cellview[i] 10:90+(i*30) 600:30 20)

);for

);list

);hi createAppForm

hiDisplayForm(Form)

Any help would be appreciated.

P.S. cellview has been declared as an arry in earlier part of the code (declare(cellview[2]) )

Regards,

Sandeep

define arrayed contacts in techfile

Howel — Thu, 23 May 2013 05:56:12 GMT

The DRC rules require different spacings for two single contacts and an arrayed contacts. For example, when there are only two V1 vias, the spacing is 0.21. If the vias form an 4x4 array, the spacing should be 0.25 instead.

In the technology file, we can create symbolic contacts which can be called when you press "o" ( or use menu "create Contacts..."). But the spacings can't change if rows and columns are > 4. Although the user can change the pitch manually, it's a little tedious.

So we want to change the definition of the symbolic contacts to make spacing change automatically. In the spacingRules (one subclass of physicalRules class) we defined "viaSpacing "V1" list(4 0.25 0.25)". But it doesn't work. We can write skill codes to do this, but that seems overkill.

Dose anybody know a simple way to modify the technology file to make it?

Thanks,

Howel

symbols of my pcell nmos/pmos transistors

fuelectronics — Wed, 22 May 2013 14:33:59 GMT

Dear all,

I created my required pcell layouts of the pmos/nmos transistors, but i also need to produce the symbols for them.

So i easily copy the standard symbols from "analogLib" library to my own library.

When I try to simulate my schematic using these two symbols, the spectre simulator complains :

Error found by spectre during hierarchy flattening.
ERROR (CMI-2116): M0: Too few terminals given (0 < 4).

I CHECK the schmatic netlist and found there are NO terminals for my transistors.

Do you have any good idea to solve this error ?

Thanks

Reading a parametrized cdf parameter

kglaros — Mon, 20 May 2013 17:19:08 GMT

Hi,

I am trying to read the CDF parameters of a FET.

My problem is that some of them refer to other CDF parameters via iPar().

So if I do: p1=cdfGetInstCDF(inst)~>parameters

v1=car(parameters)~>value

Then I get v1="iPar("\width\")", instead of the numerical value.

This is fair enough and expected, but I was wondering if there is an easy way to get the evaluated value of the parameter returned rather than the string?

I could write a function to do this iterating through the parameters, but I am currently extracting the values of several parameters via lists (setof) and so if there is a built-in function to do this it would be more convenient.

Thanks for the help.

Kostas

About the viewing of the information of the nodal voltage between schematic and Layout Editor

John Woor — Tue, 21 May 2013 02:57:26 GMT

Hi, everyone

What I used: Cadence IC51.41.151 /// Spectre 10.1.1.412.isr23

After running the Spectre to extract the nodal voltage, Can we print this information

to the Layout XL(Layout Editor) on the polygon(Such as metal1/metal2/via etc.)?

This information already printed on the Cadence Schmatic view.

But as the circuit is huge, it's difficult to trace back the nodal voltage on the specific metal line in Layout Editor .

Can we acheive that?

thanks

leSearchHierarchy property search syntax

psill00 — Tue, 21 May 2013 17:55:24 GMT

What is the syntax for leSearchHierarchy to search for a property on a shape

leSearchHierarchy(cv cv~>bBox 0 "any shape"
list( list("property" ???

property name = "regen"

property value = t

Thanks

Error fprintf/sprintf: illegal format spec. - " $monitor(\"Time: %t, Control Variable %f\\n\",$time,Ctrl_1_);\n"

skillseeker — Mon, 20 May 2013 20:20:02 GMT

Hello,

Try to Create a Cadence view from the verilog file. Here is my section of the skill that it is having problem with. If somebody has a easier way to create a Cadence view from a file let me know as well. I know what the problem here is but do not know the solution yet.

       if((ddGetObj(libName cellName viewName fileN nil "r") != nil) then
      CCScopyWrealCV(libName cellName viewName copyViewName)
      ddDeleteObj(ddGetObj(libName cellName viewName fileN nil "r"))
      fileId = ddGetObj(libName cellName viewName fileN nil "w")
      WfileName = fileId~>readPath
      oPort = outfile(WfileName)
      fileOut = infile(fileName)
      while(gets(string fileOut)
          fprintf(oPort string)
      )
      close(fileOut)
      close(oPort)

Thanks

Find nested commands

psill00 — Thu, 16 May 2013 17:54:59 GMT

Is there a way to find the nested commands?

open cell with maximize window

xuli230 — Thu, 18 Apr 2013 02:29:23 GMT

When I open a cell from library manager, it always was a small windown and not on top level,

is there any way to open a cell with maximize window and on top level? At least on top level ! Thanks

Is it possible to specify a variable with rexMatchp?

adeuser777 — Tue, 14 May 2013 22:25:44 GMT

Hi,

Can we have a variable with rexMatchp?

My requirement is as below:

a = "m_1"

b = '("m_1" "m_1_1" "m_1_2")

c = setof(i b !rexMatchp("_[1-9]*$" i) // This will return nil.

My desired output for c is "m_1" and at the same time, I want to exclude a_[1-9] where a="m_1"

Could you please guide? Is it possible with rexMatchp?

Thanks,

Ram

Cadence Custom IC Skill Forum

Using for loop inside hiCreateAppForm fields

define arrayed contacts in techfile

symbols of my pcell nmos/pmos transistors

Reading a parametrized cdf parameter

About the viewing of the information of the nodal voltage between schematic and Layout Editor

leSearchHierarchy property search syntax

*Error* fprintf/sprintf: illegal format spec. - " $monitor(\"Time: %t, Control Variable %f\\n\",$time,Ctrl_1_);\n"

Find nested commands

open cell with maximize window

Is it possible to specify a variable with rexMatchp?

Error fprintf/sprintf: illegal format spec. - " $monitor(\"Time: %t, Control Variable %f\\n\",$time,Ctrl_1_);\n"