Re-compile Pcells

Hi Kishan,

Are these graphical PCells (i.e. ones that were drawn and then stretch lines etc. were added to them), or are they SKILL based PCells?

The way to modify a SKILL based PCell is to modify the SKILL PCell code, and then the PCell is recompiled by loading that code. PCell instances are modified by changing their parameters - this is the only way that you should be trying to modify PCell instances.  Likewise, you should not be trying to alter PCell masters with db commands that run on those cells, put the modifications in the SKILL code that builds the master.

For a graphical PCell, I have not tried to alter one using db* commands, but even so I presume that if you did this you would need to recompile the PCell, and I don't know what SKILL function that would be - I do not see anything obvious in the SKILL Finder, which leads me to think that there is not a public function for doing this.  Anyway, you are better off using a SKILL based PCell.

Can you please clarify your request and also mention which version you are using?

Regards,

Lawrence.

 Hi Lawrrence,

Than you for your reply.

I am working on graphical pcells. I have modified them using the db commands. Now i want to re-compile them through skill code. I am not able to find a db command for the same.

It would be great if  you could help me find one.

With Regards

Kishan 

Kishan,

I believe all you will need to do is:

cv=dbOpenCellViewByType(libName cellName viewName)
tmpFile=makeTempFileName("/tmp/PcellCode")
result=pcSkillGen(cv tmpFile nil)
when(result
  dbDefineProc(cv tmpFile)
)
dbSave(cv)
deleteFile(tmpFile)

All that the graphical pcell editor does is generate the SKILL for the pcell and attach it as the pcell proc for the cellVIew - so this is in effect what the "compile to pcell" does. The functions in the above are all public.

Regards,

Andrew.