Cadence Custom IC Skill Forum

Help on skill code to add PIN information

narendra046 — Thu, 03 May 2012 05:27:16 GMT

Hi Friends,

I have a library with many digital cells(like AND, OR,...etc). Every cell had a met1(tt) label with port name to define PIN inforamation & to pass LVS. But I need to add a MET1 PIN at wherever met1(tt) layer exists for every digital cell of library by automation.

So, Plz help on skill code to do this.

Regards,

Narendra

SpiceIn reference library list

Yaosan Yeo — Thu, 09 Feb 2012 22:42:25 GMT

I have trouble getting SpiceIn utility to properly read in my reference library list, somehow only the first library in my list is properly included. This is how I call the command: spiceIn -param spiceIn.params

Here's how the output (spiceIn.log) header looks like: (notice only analogLib is in the library list; a weird "boaDMFileSys.so" library also appears in the list even though it is not specified in my param file)

=================== Spice In Log File ===================
Parameter file: /tmp/spiceInPa07316
Import Parameters: Netlist file name: /home/yyeo/and1_2x1.hsp
        Output library name: sandbox_yyeo
        Output View Type: schematic
        Schematic view name: schematic
        Netlist view name: netlist_tmp
        Reference Library List: analogLib boaDMFileSys.so sandbox_yyeo
        Import Sub-circuit List: top
        Top cell: top
        Device-mapping file name: dev.map
        Master Cell for Ground: gnd
        Cells to be Overwritten: <all>
        Schematic Generation parameter file: /tmp/schOpts_spiceInPa07316
        Simulator: spectre
        Output Simulator: spectre
        paramCaseValue: default
        Language: Spectre

The library sandbox_yyeo already exists.
Total number of files: 1.

Netlist File: /home/yyeo/and1_2x1.hsp.

...

Here's how my param file (spiceIn.params) looks like:

spiceInParams = list(nil
        'conn2schArgs   "-MIN_CROSSOVERS -FAST_LABELS"
        'language       "HSpice"
        'netlistFile    "/home/yyeo/and1_2x1.hsp"
        'outputLib      "sandbox_yyeo"
        'refLibList     "analogLib basic primitives esdLib"
        'devMapFile     "dev.map"
        'overwriteCells "all"
)

My Cadence version is IC 6.1.4.485. Thank you!

CheckandSave in editor XL

Telekito — Tue, 22 May 2012 11:18:20 GMT

Hi,

Firstly, in IC6 I dont have Virtuoso_Schematic_Editor_L, I have to use Editor_XL.

I use no-graph mode and I want to change the schematic and simulate then. In IC5 i used:

cv=dbOpenCellViewByType("lib" "cell" "view" "schematic" "a")

.....

schCheck(cv)

dbSave(cv)

...

and simulate with ocean.

Now, schCheck() is failing because I can't use Editor_L. Can I use schCheck() in XL_editor? or maybe can i do CheckandHow?

Thanks.

DRDs and autorout

Adhil — Wed, 23 May 2012 06:47:27 GMT

hi does anyone know where i can get information about DRDs and auto-rout

How to Call multi pcells one time?

nidon — Tue, 22 May 2012 10:31:08 GMT

Dear Sir.

I want to write a skill script to call mulit pcells in layout, and I used dbCreateParamInstByMasterName(cv "libname" "nmos" ....).But it's just call one pcell one time,and if i want to call mulit pcells one time ,it means I have to write a lots of dbCreateParamInstByMasterName....Can you help me to solve this problem?

Thanks a lot.

How to change snapmode of any function to anyAngle

Sarvani — Mon, 21 May 2012 10:53:39 GMT

Hi all,

I need to change snapmode of object while moving to anyAngle when I press bindkey. I didn't know command to set snapmode. Let me know how to do this?

Mark net not blinking in some technology, how to set it correctly?

PeterXia — Fri, 18 May 2012 15:35:11 GMT

Hi I am using IC 514, Layout XL with IBM p13 process. The mark net option only hightlights ("barely can see"). When I changed to TSMC65N technology, the mark net is blinking correctly.

My question is what should I do to set the blinking in IBM p13 process. It is too difficult to see iwthout the blinking. Thank you a lot for letting me know how to do it.

Is there any way to open cell in editing mode for two or more people?

Sarvani — Fri, 18 May 2012 11:49:18 GMT

Hi all,

Generally if some one editing the layout then we cann't edit it. Is there any way to edit same layout by two people. I feel its better to work for top level layout by one people work on some portion and some other people on another portions.

thank you.

Skill code for turn rectangle metal to mesh in the virtuoso layout editor

ZhouDL — Wed, 16 May 2012 14:39:59 GMT

Hi,

I want write a skill script for turning rectangle metal to mesh or slot on the rectangle metal automatically in the virtuoso layout editor when I press a bindkey.

but I am not very familiar with cadence skill .Can anyone help me on this?

Thanks,

PS: I want to post some sort of screenshot from my computer for what I really want to do,but I do not know how to do.Anyone can teach me to do this？

Can we find short between two nets in layout?

Sarvani — Tue, 15 May 2012 05:44:52 GMT

hi all,

I made a short between VSS, VDD in top level. I need probe at that exact point where VSS and VDD are shorted. Is there any ideas?