compile pcell to skill

I have a pcell that I want to modify but dont have the source code.
Under the pcell menu is
compile-->to skill which will dump the code but I get a warning
saying that "the cell has no
parameters" and then dumps the code. If you read in the code, it
does build the cell but with
out the parameters. Its been many years since Ive used this and
forgot the procedure to get
the complete cell with parameters. How can I get the parameters in
the code also?

Thanks

Rick

 

rick wrote, on 05/10/10 15:58:

Rick,

The SKILL function dbDumpPcDefinePcell gives you pretty much what you want (you
need to do a little munging to get it back into a form you can define the pcell,
but it's got all the info).

It's documented and in cdsFinder. There's also dbDumpPcell too.

Regards,

Andrew.

 

Hi Andrew - There is also the command dbWriteSkill that does the same
thing or at least the files that it
dumps almost identical. Here a condensed version of the the write
up for your convenience. The last
line says do not use "load" or the pcell compiler to rebuild the cell
otherwise you will loose the parameters
which is true. What other methods are available to rebuild the cell?

Converting a Procedural pcell by Writing it to SKILL

dbWriteSkill( d_cvId t_fileName t_mode t_release [g_conn] )
=> t / nil

dbWriteSkill creates a file that contains all the SKILL commands
needed to re-create a cellview. dbWriteSkill creates two files for a
procedural pcell--one with the cell's design data and the other with
the procedure.

For example, this code

pcell cvId = dbOpenCellViewByType("myLib" "myPcell" "layout")
dbWriteSkill(cvId "/tmp/dumpFile.il" "w" "4.4")

creates two files in /tmp:
dumpFile.il
myLib_myPcell_layout_pCell.il
dumpFile.il contains design data for the cell.
myLib_myPcell_layout_pCell.il contains the pcell procedure.

Follow these steps, substituting your names for the example names:

1. Execute dbWriteSkill.
2 Run the SKILL Code Checker on dumpFile.il.
3. Make the necessary changes to myLib_myPcell_layout_pCell.il.
4. Re-create the pcell.

Do not use the load command or the pcell compiler to re-create
the cell. You lose graphical data if you use load and you lose
parameters if you recompile.

 

rick,
Andrew is right, and you too.
dbDumpPcDefinePcell and dbWriteSkill all can dump the useful
information.
But, it's important that you have to modify the skill file
(myLib_myPcell_layout_pCell.il you mentioned), cut off the judgements
of parameters relative to pcell-cellview and insert the parameter
declaration. Thereafter, you can load the new il file after finishing
the modification.
I tried like this and solve the problem in this way.
If you find another better approach, please let us know!

YanqingAI